fix(theme): remove stale React Compiler memo wrappers from theme hooks

Rebase on current main (includes #589 reconciler fix).

The React Compiler memo caches (_c) in useTheme() and usePreviewTheme()
use referential equality checks on destructured context values. These
caches can return stale references when the ThemeProvider's useMemo
recreates the context value object but the individual property
references (setThemeSetting, setPreviewTheme, etc.) compare equal —
the memo short-circuits and returns a cached tuple/object that still
holds the old closure captures.

This is a distinct bug from #589 (which fixed the ink reconciler's
commitUpdate path for host prop updates). #589 ensures that when
React _does_ re-render a component with new props, those props actually
reach the DOM node. But the memo wrappers here prevent React from
_even seeing_ the new context value in the first place — the hook
returns the stale cached result.

Removing the memo wrappers ensures useTheme() and usePreviewTheme()
always read the current context value, eliminating the stale-reference
path entirely.

.env.example

@@ -248,3 +248,93 @@ ANTHROPIC_API_KEY=sk-ant-your-key-here
 
 # Enable debug logging
 # CLAUDE_DEBUG=1
+
+
+# =============================================================================
+# WEB SEARCH (OPTIONAL)
+# =============================================================================
+# OpenClaude includes a web search tool. By default it uses DuckDuckGo (free)
+# or the provider's native search (Anthropic firstParty / vertex).
+#
+# Set one API key below to enable a provider. That's it.
+
+# ── Provider API keys — set ONE of these ────────────────────────────
+
+# Tavily (AI-optimized search, recommended)
+# TAVILY_API_KEY=tvly-your-key-here
+
+# Exa (neural/semantic search)
+# EXA_API_KEY=your-exa-key-here
+
+# You.com (RAG-ready snippets)
+# YOU_API_KEY=your-you-key-here
+
+# Jina (s.jina.ai endpoint)
+# JINA_API_KEY=your-jina-key-here
+
+# Bing Web Search
+# BING_API_KEY=your-bing-key-here
+
+# Mojeek (privacy-focused)
+# MOJEEK_API_KEY=your-mojeek-key-here
+
+# Linkup
+# LINKUP_API_KEY=your-linkup-key-here
+
+# Firecrawl (premium, uses @mendable/firecrawl-js)
+# FIRECRAWL_API_KEY=fc-your-key-here
+
+# ── Provider selection mode ─────────────────────────────────────────
+#
+# WEB_SEARCH_PROVIDER controls fallback behavior:
+#
+#   "auto"      (default) — try all configured providers, fall through on failure
+#   "custom"    — custom API only, throw on failure (NOT in auto chain)
+#   "firecrawl" — firecrawl only
+#   "tavily"    — tavily only
+#   "exa"       — exa only
+#   "you"       — you.com only
+#   "jina"      — jina only
+#   "bing"      — bing only
+#   "mojeek"    — mojeek only
+#   "linkup"    — linkup only
+#   "ddg"       — duckduckgo only
+#   "native"    — anthropic native / codex only
+#
+# Auto mode priority: firecrawl → tavily → exa → you → jina → bing → mojeek →
+#                     linkup → ddg
+# Note: "custom" is NOT in the auto chain. To use the custom API provider,
+# you must explicitly set WEB_SEARCH_PROVIDER=custom.
+#
+# WEB_SEARCH_PROVIDER=auto
+
+# ── Built-in custom API presets ─────────────────────────────────────
+#
+# Use with WEB_KEY for the API key:
+# WEB_PROVIDER=searxng|google|brave|serpapi
+# WEB_KEY=your-api-key-here
+
+# ── Custom API endpoint (advanced) ──────────────────────────────────
+#
+# WEB_SEARCH_API    — base URL of your search endpoint
+# WEB_QUERY_PARAM         — query parameter name (default: "q")
+# WEB_METHOD        — GET or POST (default: GET)
+# WEB_PARAMS        — extra static query params as JSON: {"lang":"en","count":"10"}
+# WEB_URL_TEMPLATE  — URL template with {query} for path embedding
+# WEB_BODY_TEMPLATE — custom POST body with {query} placeholder
+# WEB_AUTH_HEADER   — header name for API key (default: "Authorization")
+# WEB_AUTH_SCHEME   — prefix before key (default: "Bearer")
+# WEB_HEADERS       — extra headers as "Name: value; Name2: value2"
+# WEB_JSON_PATH     — dot-path to results array in response
+
+# ── Custom API security guardrails ──────────────────────────────────
+#
+# The custom provider enforces security guardrails by default.
+# Override these only if you understand the risks.
+#
+# WEB_CUSTOM_TIMEOUT_SEC=15                  — request timeout in seconds (default 15)
+# WEB_CUSTOM_MAX_BODY_KB=300                 — max POST body size in KB (default 300)
+# WEB_CUSTOM_ALLOW_ARBITRARY_HEADERS=false   — set "true" to use non-standard headers
+# WEB_CUSTOM_ALLOW_HTTP=false                — set "true" to allow http:// URLs
+# WEB_CUSTOM_ALLOW_PRIVATE=false             — set "true" to target localhost/private IPs
+#                                               (needed for self-hosted SearXNG)

.github/workflows/pr-checks.yml

@@ -29,6 +29,13 @@ jobs:
         with:
           bun-version: 1.3.11
 
+      - name: Set up Python
+        uses: actions/setup-python@0a5c61591373683505ea898e09a3ea4f39ef2b9c # v5.0.0
+        with:
+          python-version: "3.12"
+          cache: "pip"
+          cache-dependency-path: python/requirements.txt
+
       - name: Install dependencies
         run: bun install --frozen-lockfile
 
@@ -38,6 +45,12 @@ jobs:
       - name: Full unit test suite
         run: bun test --max-concurrency=1
 
+      - name: Install Python test dependencies
+        run: python -m pip install -r python/requirements.txt
+
+      - name: Python unit tests
+        run: python -m pytest -q python/tests
+
       - name: Suspicious PR intent scan
         run: bun run security:pr-scan -- --base ${{ github.event.pull_request.base.sha || 'origin/main' }}
       - name: Provider tests

docs/advanced-setup.md

@@ -137,10 +137,9 @@ export OPENAI_MODEL=llama-3.3-70b-versatile
 ### Mistral
 
 ```bash
-export CLAUDE_CODE_USE_OPENAI=1
-export OPENAI_API_KEY=...
-export OPENAI_BASE_URL=https://api.mistral.ai/v1
-export OPENAI_MODEL=mistral-large-latest
+export CLAUDE_CODE_USE_MISTRAL=1
+export MISTRAL_API_KEY=...
+export MISTRAL_MODEL=mistral-large-latest
 ```
 
 ### Azure OpenAI

python/requirements.txt

@@ -0,0 +1,3 @@
+pytest==7.4.4
+pytest-asyncio==0.23.3
+httpx==0.25.2

python/smart_router.py

@@ -112,6 +112,14 @@ def build_default_providers() -> list[Provider]:
             big_model=big if "gemini" in big else "gemini-2.5-pro",
             small_model=small if "gemini" in small else "gemini-2.0-flash",
         ),
+        Provider(
+          name="mistral",
+          ping_url="",
+          api_key_env="MISTRAL_API_KEY",
+          cost_per_1k_tokens=0.0001,
+          big_model=big if "mistral" in big else "devstral-latest",
+          small_model=small if "small" in small else "ministral-3b-latest",  
+        ),
         Provider(
             name="ollama",
             ping_url=f"{ollama_url}/api/tags",

scripts/provider-bootstrap.ts

@@ -11,6 +11,7 @@ import {
   buildAtomicChatProfileEnv,
   buildCodexProfileEnv,
   buildGeminiProfileEnv,
+  buildMistralProfileEnv,
   buildOllamaProfileEnv,
   buildOpenAIProfileEnv,
   createProfileFile,
@@ -37,7 +38,7 @@ function parseArg(name: string): string | null {
 
 function parseProviderArg(): ProviderProfile | 'auto' {
   const p = parseArg('--provider')?.toLowerCase()
-  if (p === 'openai' || p === 'ollama' || p === 'codex' || p === 'gemini' || p === 'atomic-chat') return p
+  if (p === 'openai' || p === 'ollama' || p === 'codex' || p === 'gemini' || p === 'mistral' || p === 'atomic-chat') return p
   return 'auto'
 }
 
@@ -90,6 +91,21 @@ async function main(): Promise<void> {
       process.exit(1)
     }
 
+    env = builtEnv
+  } else if (selected === 'mistral') {
+    const builtEnv = buildMistralProfileEnv({
+      model: argModel || null,
+      baseUrl: argBaseUrl || null,
+      apiKey: argApiKey || null,
+      processEnv: process.env,
+    })
+
+    if (!builtEnv) {
+      console.error('Mistral profile requires an API key. Use --api-key or set MISTRAL_API_KEY.')
+      console.error('Get a free key at: https://admin.mistral.ai/organization/api-keys')
+      process.exit(1)
+    }
+
     env = builtEnv
   } else if (selected === 'ollama') {
     resolvedOllamaModel ??= await resolveOllamaModel(argModel, argBaseUrl, goal)
@@ -169,7 +185,7 @@ async function main(): Promise<void> {
 
   console.log(`Saved profile: ${selected}`)
   console.log(`Goal: ${goal}`)
-  console.log(`Model: ${profile.env.GEMINI_MODEL || profile.env.OPENAI_MODEL || getGoalDefaultOpenAIModel(goal)}`)
+  console.log(`Model: ${profile.env.GEMINI_MODEL || profile.env.MISTRAL_MODEL || profile.env.OPENAI_MODEL || getGoalDefaultOpenAIModel(goal)}`)
   console.log(`Path: ${outputPath}`)
   console.log('Next: bun run dev:profile')
 }

scripts/provider-launch.ts

@@ -50,7 +50,7 @@ function parseLaunchOptions(argv: string[]): LaunchOptions {
       continue
     }
 
-    if ((lower === 'auto' || lower === 'openai' || lower === 'ollama' || lower === 'codex' || lower === 'gemini' || lower === 'atomic-chat') && requestedProfile === 'auto') {
+    if ((lower === 'auto' || lower === 'openai' || lower === 'ollama' || lower === 'codex' || lower === 'gemini' || lower ==='mistral' || lower === 'atomic-chat') && requestedProfile === 'auto') {
       requestedProfile = lower as ProviderProfile | 'auto'
       continue
     }
@@ -124,6 +124,8 @@ function printSummary(profile: ProviderProfile): void {
   console.log(`Launching profile: ${profile}`)
   if (profile === 'gemini') {
     console.log('Using configured Gemini provider settings.')
+  } else if (profile === 'mistral') {
+    console.log('Using configured Mistral provider settings.')
   } else if (profile === 'codex') {
     console.log('Using configured Codex/OpenAI-compatible provider settings.')
   } else if (profile === 'atomic-chat') {
@@ -139,7 +141,7 @@ async function main(): Promise<void> {
   const options = parseLaunchOptions(process.argv.slice(2))
   const requestedProfile = options.requestedProfile
   if (!requestedProfile) {
-    console.error('Usage: bun run scripts/provider-launch.ts [openai|ollama|codex|gemini|atomic-chat|auto] [--fast] [--goal <latency|balanced|coding>] [-- <cli args>]')
+    console.error('Usage: bun run scripts/provider-launch.ts [openai|ollama|codex|gemini|mistral|atomic-chat|mistral|auto] [--fast] [--goal <latency|balanced|coding>] [-- <cli args>]')
     process.exit(1)
   }
 
@@ -205,6 +207,11 @@ async function main(): Promise<void> {
     process.exit(1)
   }
 
+  if (profile === 'mistral' && !env.MISTRAL_API_KEY) {
+    console.error('MISTRAL_API_KEY is required for mistral profile. Run: bun run profile:init -- --provider mistral --api-key <key>')
+    process.exit(1)
+  }
+
   if (profile === 'openai' && (!env.OPENAI_API_KEY || env.OPENAI_API_KEY === 'SUA_CHAVE')) {
     console.error('OPENAI_API_KEY is required for openai profile and cannot be SUA_CHAVE. Run: bun run profile:init -- --provider openai --api-key <key>')
     process.exit(1)

scripts/system-check.ts

@@ -118,14 +118,18 @@ function isLocalBaseUrl(baseUrl: string): boolean {
 }
 
 const GEMINI_DEFAULT_BASE_URL = 'https://generativelanguage.googleapis.com/v1beta/openai'
-const GITHUB_MODELS_DEFAULT_BASE = 'https://models.github.ai/inference'
+const MISTRAL_DEFAULT_BASE_URL = 'https://api.mistral.ai/v1'
+const GITHUB_COPILOT_BASE = 'https://api.githubcopilot.com'
 
 function currentBaseUrl(): string {
   if (isTruthy(process.env.CLAUDE_CODE_USE_GEMINI)) {
     return process.env.GEMINI_BASE_URL ?? GEMINI_DEFAULT_BASE_URL
   }
+  if (isTruthy(process.env.CLAUDE_CODE_USE_MISTRAL)) {
+    return process.env.MISTRAL_BASE_URL ?? MISTRAL_DEFAULT_BASE_URL
+  }
   if (isTruthy(process.env.CLAUDE_CODE_USE_GITHUB)) {
-    return process.env.OPENAI_BASE_URL ?? GITHUB_MODELS_DEFAULT_BASE
+    return process.env.OPENAI_BASE_URL ?? GITHUB_COPILOT_BASE
   }
   return process.env.OPENAI_BASE_URL ?? 'https://api.openai.com/v1'
 }
@@ -155,9 +159,34 @@ function checkGeminiEnv(): CheckResult[] {
   return results
 }
 
+function checkMistralEnv(): CheckResult[] {
+  const results: CheckResult[] = []
+  const model = process.env.MISTRAL_MODEL
+  const key = process.env.MISTRAL_API_KEY
+  const baseUrl = process.env.MISTRAL_BASE_URL ?? MISTRAL_DEFAULT_BASE_URL
+
+  results.push(pass('Provider mode', 'Mistral provider enabled.'))
+
+  if (!model) {
+    results.push(pass('MISTRAL_MODEL', 'Not set. Default will be used at runtime.'))
+  } else {
+    results.push(pass('MISTRAL_MODEL', model))
+  }
+
+  results.push(pass('MISTRAL_BASE_URL', baseUrl))
+
+  if (!key) {
+    results.push(fail('MISTRAL_API_KEY', 'Missing. Set MISTRAL_API_KEY.'))
+  } else {
+    results.push(pass('MISTRAL_API_KEY', 'Configured.'))
+  }
+
+  return results
+}
+
 function checkGithubEnv(): CheckResult[] {
   const results: CheckResult[] = []
-  const baseUrl = process.env.OPENAI_BASE_URL ?? GITHUB_MODELS_DEFAULT_BASE
+  const baseUrl = process.env.OPENAI_BASE_URL ?? GITHUB_COPILOT_BASE
   results.push(pass('Provider mode', 'GitHub Models provider enabled.'))
 
   const token = process.env.GITHUB_TOKEN ?? process.env.GH_TOKEN
@@ -186,12 +215,17 @@ function checkOpenAIEnv(): CheckResult[] {
   const results: CheckResult[] = []
   const useGemini = isTruthy(process.env.CLAUDE_CODE_USE_GEMINI)
   const useGithub = isTruthy(process.env.CLAUDE_CODE_USE_GITHUB)
+  const useMistral = isTruthy(process.env.CLAUDE_CODE_USE_MISTRAL)
   const useOpenAI = isTruthy(process.env.CLAUDE_CODE_USE_OPENAI)
 
   if (useGemini) {
     return checkGeminiEnv()
   }
 
+  if (useMistral) {
+    return checkMistralEnv()
+  }
+
   if (useGithub && !useOpenAI) {
     return checkGithubEnv()
   }
@@ -268,8 +302,9 @@ async function checkBaseUrlReachability(): Promise<CheckResult> {
   const useGemini = isTruthy(process.env.CLAUDE_CODE_USE_GEMINI)
   const useOpenAI = isTruthy(process.env.CLAUDE_CODE_USE_OPENAI)
   const useGithub = isTruthy(process.env.CLAUDE_CODE_USE_GITHUB)
+  const useMistral = isTruthy(process.env.CLAUDE_CODE_USE_MISTRAL)
 
-  if (!useGemini && !useOpenAI && !useGithub) {
+  if (!useGemini && !useOpenAI && !useGithub && !useMistral) {
     return pass('Provider reachability', 'Skipped (OpenAI-compatible mode disabled).')
   }
 
@@ -326,6 +361,8 @@ async function checkBaseUrlReachability(): Promise<CheckResult> {
       })
     } else if (useGemini && (process.env.GEMINI_API_KEY ?? process.env.GOOGLE_API_KEY)) {
       headers.Authorization = `Bearer ${process.env.GEMINI_API_KEY ?? process.env.GOOGLE_API_KEY}`
+    } else if (useMistral && process.env.MISTRAL_API_KEY) {
+      headers.Authorization = `Bearer ${process.env.MISTRAL_API_KEY}`
     } else if (process.env.OPENAI_API_KEY) {
       headers.Authorization = `Bearer ${process.env.OPENAI_API_KEY}`
     }
@@ -373,7 +410,8 @@ function checkOllamaProcessorMode(): CheckResult {
   if (
     !isTruthy(process.env.CLAUDE_CODE_USE_OPENAI) ||
     isTruthy(process.env.CLAUDE_CODE_USE_GEMINI) ||
-    isTruthy(process.env.CLAUDE_CODE_USE_GITHUB)
+    isTruthy(process.env.CLAUDE_CODE_USE_GITHUB) ||
+    isTruthy(process.env.CLAUDE_CODE_USE_MISTRAL)
   ) {
     return pass('Ollama processor mode', 'Skipped (OpenAI-compatible mode disabled).')
   }
@@ -425,6 +463,14 @@ function serializeSafeEnvSummary(): Record<string, string | boolean> {
       GEMINI_API_KEY_SET: Boolean(process.env.GEMINI_API_KEY ?? process.env.GOOGLE_API_KEY),
     }
   }
+  if (isTruthy(process.env.CLAUDE_CODE_USE_MISTRAL)) {
+    return {
+      CLAUDE_CODE_USE_MISTRAL: true,
+      MISTRAL_MODEL: process.env.MISTRAL_MODEL ?? '(unset, default: devstral-latest)',
+      MISTRAL_BASE_URL: process.env.MISTRAL_BASE_URL ?? 'https://api.mistral.ai/v1',
+      MISTRAL_API_KEY_SET: Boolean(process.env.MISTRAL_API_KEY),
+    }
+  }
   if (
     isTruthy(process.env.CLAUDE_CODE_USE_GITHUB) &&
     !isTruthy(process.env.CLAUDE_CODE_USE_OPENAI)
@@ -435,7 +481,7 @@ function serializeSafeEnvSummary(): Record<string, string | boolean> {
         process.env.OPENAI_MODEL ??
         '(unset, default: github:copilot → openai/gpt-4.1)',
       OPENAI_BASE_URL:
-        process.env.OPENAI_BASE_URL ?? GITHUB_MODELS_DEFAULT_BASE,
+        process.env.OPENAI_BASE_URL ?? GITHUB_COPILOT_BASE,
       GITHUB_TOKEN_SET: Boolean(
         process.env.GITHUB_TOKEN ?? process.env.GH_TOKEN,
       ),

src/cli/update.ts

@@ -400,12 +400,12 @@ export async function update() {
       if (useLocalUpdate) {
         process.stderr.write('Try manually updating with:\n')
         process.stderr.write(
-          `  cd ~/.claude/local && npm update ${MACRO.PACKAGE_URL}\n`,
+          `  cd ~/.openclaude/local && npm update ${MACRO.PACKAGE_URL}\n`,
         )
       } else {
         process.stderr.write('Try running with sudo or fix npm permissions\n')
         process.stderr.write(
-          'Or consider using native installation with: claude install\n',
+          'Or consider using native installation with: openclaude install\n',
         )
       }
       await gracefulShutdown(1)
@@ -415,11 +415,11 @@ export async function update() {
       if (useLocalUpdate) {
         process.stderr.write('Try manually updating with:\n')
         process.stderr.write(
-          `  cd ~/.claude/local && npm update ${MACRO.PACKAGE_URL}\n`,
+          `  cd ~/.openclaude/local && npm update ${MACRO.PACKAGE_URL}\n`,
         )
       } else {
         process.stderr.write(
-          'Or consider using native installation with: claude install\n',
+          'Or consider using native installation with: openclaude install\n',
         )
       }
       await gracefulShutdown(1)

src/commands.ts

@@ -32,6 +32,7 @@ import logout from './commands/logout/index.js'
 import installGitHubApp from './commands/install-github-app/index.js'
 import installSlackApp from './commands/install-slack-app/index.js'
 import breakCache from './commands/break-cache/index.js'
+import cacheProbe from './commands/cache-probe/index.js'
 import mcp from './commands/mcp/index.js'
 import mobile from './commands/mobile/index.js'
 import onboarding from './commands/onboarding/index.js'
@@ -136,6 +137,7 @@ import hooks from './commands/hooks/index.js'
 import files from './commands/files/index.js'
 import branch from './commands/branch/index.js'
 import agents from './commands/agents/index.js'
+import autoFix from './commands/auto-fix.js'
 import plugin from './commands/plugin/index.js'
 import reloadPlugins from './commands/reload-plugins/index.js'
 import rewind from './commands/rewind/index.js'
@@ -143,6 +145,7 @@ import heapDump from './commands/heapdump/index.js'
 import mockLimits from './commands/mock-limits/index.js'
 import bridgeKick from './commands/bridge-kick.js'
 import version from './commands/version.js'
+import wiki from './commands/wiki/index.js'
 import summary from './commands/summary/index.js'
 import {
   resetLimits,
@@ -263,8 +266,10 @@ const COMMANDS = memoize((): Command[] => [
   addDir,
   advisor,
   agents,
+  autoFix,
   branch,
   btw,
+  cacheProbe,
   chrome,
   clear,
   color,
@@ -324,6 +329,7 @@ const COMMANDS = memoize((): Command[] => [
   usage,
   usageReport,
   vim,
+  wiki,
   ...(webCmd ? [webCmd] : []),
   ...(forkCmd ? [forkCmd] : []),
   ...(buddy ? [buddy] : []),

src/commands/auto-fix.ts

@@ -0,0 +1,25 @@
+import type { Command } from '../types/command.js'
+
+const command: Command = {
+  name: 'auto-fix',
+  description: 'Configure auto-fix: run lint/test after AI edits',
+  isEnabled: () => true,
+  type: 'prompt',
+  progressMessage: 'Configuring auto-fix...',
+  contentLength: 0,
+  source: 'builtin',
+  async getPromptForCommand() {
+    return [
+      {
+        type: 'text',
+        text:
+          'The user wants to configure auto-fix settings. Auto-fix automatically runs lint and test commands after AI file edits, feeding errors back for self-repair.\n\n' +
+          'Current settings location: `.claude/settings.json` or `.claude/settings.local.json`\n\n' +
+          'Example configuration:\n```json\n{\n  "autoFix": {\n    "enabled": true,\n    "lint": "eslint . --fix",\n    "test": "bun test",\n    "maxRetries": 3,\n    "timeout": 30000\n  }\n}\n```\n\n' +
+          'Ask the user what lint and test commands they use, then help them set up the configuration.',
+      },
+    ]
+  },
+}
+
+export default command

src/commands/cache-probe/cache-probe.ts

@@ -0,0 +1,413 @@
+import { getSessionId } from '../../bootstrap/state.js'
+import { resolveProviderRequest } from '../../services/api/providerConfig.js'
+import type { LocalCommandCall } from '../../types/command.js'
+import { logForDebugging } from '../../utils/debug.js'
+import { isEnvTruthy } from '../../utils/envUtils.js'
+import { hydrateGithubModelsTokenFromSecureStorage } from '../../utils/githubModelsCredentials.js'
+import { getMainLoopModel } from '../../utils/model/model.js'
+
+const COPILOT_HEADERS: Record<string, string> = {
+  'User-Agent': 'GitHubCopilotChat/0.26.7',
+  'Editor-Version': 'vscode/1.99.3',
+  'Editor-Plugin-Version': 'copilot-chat/0.26.7',
+  'Copilot-Integration-Id': 'vscode-chat',
+}
+
+// Large system prompt (~6000 chars, ~1500 tokens) to cross the 1024-token cache threshold
+const SYSTEM_PROMPT = [
+  'You are a coding assistant. Answer concisely.',
+  'CONTEXT: User is working on a TypeScript project with Bun runtime.',
+  ...Array.from(
+    { length: 80 },
+    (_, i) =>
+      `Rule ${i + 1}: Follow best practices for TypeScript including strict typing, error handling, testing, and clean code. Prefer explicit types over any. Use const assertions. Await all async operations.`,
+  ),
+].join('\n\n')
+
+const USER_MESSAGE = 'Say "hello" and nothing else.'
+const DELAY_MS = 3000
+
+/**
+ * Extract model family from a versioned model string.
+ * e.g. "gpt-5.4-0626" → "gpt-5.4", "codex-mini-latest" → "codex-mini"
+ */
+function getModelFamily(model: string | undefined): string {
+  if (!model) return 'unknown'
+  return model
+    .replace(/-\d{4,}$/, '')
+    .replace(/-latest$/, '')
+    .replace(/-preview$/, '')
+}
+
+function getField(obj: unknown, path: string): unknown {
+  return path
+    .split('.')
+    .reduce((o: any, k: string) => (o != null ? o[k] : undefined), obj)
+}
+
+interface ProbeResult {
+  label: string
+  status: number
+  elapsed: number
+  headers: Record<string, string>
+  usage: Record<string, unknown> | null
+  responseId: string | null
+  error: string | null
+}
+
+async function sendProbe(
+  url: string,
+  headers: Record<string, string>,
+  body: Record<string, unknown>,
+  label: string,
+): Promise<ProbeResult> {
+  const start = Date.now()
+  let response: Response
+  try {
+    response = await fetch(url, {
+      method: 'POST',
+      headers,
+      body: JSON.stringify(body),
+    })
+  } catch (err: any) {
+    return {
+      label,
+      status: 0,
+      elapsed: Date.now() - start,
+      headers: {},
+      usage: null,
+      responseId: null,
+      error: err.message,
+    }
+  }
+  const elapsed = Date.now() - start
+
+  const respHeaders: Record<string, string> = {}
+  response.headers.forEach((value, key) => {
+    respHeaders[key] = value
+  })
+
+  if (!response.ok) {
+    const errorBody = await response.text().catch(() => '')
+    return {
+      label,
+      status: response.status,
+      elapsed,
+      headers: respHeaders,
+      usage: null,
+      responseId: null,
+      error: errorBody,
+    }
+  }
+
+  // Parse SSE stream for usage data
+  const text = await response.text()
+  let usage: Record<string, unknown> | null = null
+  let responseId: string | null = null
+
+  const isResponses = url.endsWith('/responses')
+  for (const chunk of text.split('\n\n')) {
+    const lines = chunk
+      .split('\n')
+      .map((l) => l.trim())
+      .filter(Boolean)
+
+    if (isResponses) {
+      const eventLine = lines.find((l) => l.startsWith('event: '))
+      const dataLines = lines.filter((l) => l.startsWith('data: '))
+      if (!eventLine || !dataLines.length) continue
+      const event = eventLine.slice(7).trim()
+      if (
+        event === 'response.completed' ||
+        event === 'response.incomplete'
+      ) {
+        try {
+          const data = JSON.parse(
+            dataLines.map((l) => l.slice(6)).join('\n'),
+          )
+          usage = (data?.response?.usage as Record<string, unknown>) ?? null
+          responseId = (data?.response?.id as string) ?? null
+        } catch {}
+      }
+    } else {
+      for (const line of lines) {
+        if (!line.startsWith('data: ')) continue
+        const raw = line.slice(6).trim()
+        if (raw === '[DONE]') continue
+        try {
+          const data = JSON.parse(raw) as Record<string, unknown>
+          if (data.usage) {
+            usage = data.usage as Record<string, unknown>
+            responseId = (data.id as string) ?? null
+          }
+        } catch {}
+      }
+    }
+  }
+
+  return { label, status: response.status, elapsed, headers: respHeaders, usage, responseId, error: null }
+}
+
+function formatResult(r: ProbeResult): string {
+  const lines: string[] = [`--- ${r.label} ---`]
+  if (r.error) {
+    lines.push(`  ERROR (HTTP ${r.status}): ${r.error.slice(0, 200)}`)
+    return lines.join('\n')
+  }
+  lines.push(`  HTTP ${r.status} — ${r.elapsed}ms`)
+  if (r.responseId) lines.push(`  response.id: ${r.responseId}`)
+
+  if (r.usage) {
+    lines.push('  Usage:')
+    lines.push(`    ${JSON.stringify(r.usage, null, 2).replace(/\n/g, '\n    ')}`)
+  } else {
+    lines.push('  Usage: null')
+  }
+
+  // Interesting headers
+  for (const h of [
+    'openai-processing-ms',
+    'x-ratelimit-remaining',
+    'x-ratelimit-limit',
+    'x-ms-region',
+    'x-github-request-id',
+    'x-request-id',
+  ]) {
+    if (r.headers[h]) lines.push(`  ${h}: ${r.headers[h]}`)
+  }
+  return lines.join('\n')
+}
+
+export const call: LocalCommandCall = async (args) => {
+  const parts = (args ?? '').trim().split(/\s+/).filter(Boolean)
+  const noKey = parts.includes('--no-key')
+  const modelOverride = parts.find((p) => !p.startsWith('--')) || undefined
+  const modelStr = modelOverride ?? getMainLoopModel()
+  const request = resolveProviderRequest({ model: modelStr })
+  const isGithub = isEnvTruthy(process.env.CLAUDE_CODE_USE_GITHUB)
+
+  // Resolve API key the same way the OpenAI shim does
+  let apiKey = process.env.OPENAI_API_KEY ?? ''
+  if (!apiKey && isGithub) {
+    hydrateGithubModelsTokenFromSecureStorage()
+    apiKey =
+      process.env.OPENAI_API_KEY ??
+      process.env.GITHUB_TOKEN ??
+      process.env.GH_TOKEN ??
+      ''
+  }
+
+  if (!apiKey) {
+    return {
+      type: 'text',
+      value:
+        'No API key found. Make sure you are in an active OpenAI-compatible or GitHub Copilot session.\n' +
+        'For GitHub Copilot: run /onboard-github first.\n' +
+        'For OpenAI-compatible: set OPENAI_API_KEY.',
+    }
+  }
+
+  const useResponses = request.transport === 'codex_responses'
+  const endpoint = useResponses ? '/responses' : '/chat/completions'
+  const url = `${request.baseUrl}${endpoint}`
+  const family = getModelFamily(request.resolvedModel)
+  const cacheKey = `${getSessionId()}:${family}`
+
+  const headers: Record<string, string> = {
+    'Content-Type': 'application/json',
+    Authorization: `Bearer ${apiKey}`,
+    originator: 'openclaude',
+  }
+  if (isGithub) {
+    Object.assign(headers, COPILOT_HEADERS)
+  }
+
+  let body: Record<string, unknown>
+  if (useResponses) {
+    body = {
+      model: request.resolvedModel,
+      instructions: SYSTEM_PROMPT,
+      input: [
+        {
+          type: 'message',
+          role: 'user',
+          content: [{ type: 'input_text', text: USER_MESSAGE }],
+        },
+      ],
+      stream: true,
+      ...(noKey ? {} : {
+        store: false,
+        prompt_cache_key: cacheKey,
+        prompt_cache_retention: '24h',
+      }),
+    }
+  } else {
+    body = {
+      model: request.resolvedModel,
+      messages: [
+        { role: 'system', content: SYSTEM_PROMPT },
+        { role: 'user', content: USER_MESSAGE },
+      ],
+      stream: true,
+      stream_options: { include_usage: true },
+      max_tokens: 20,
+      ...(noKey ? {} : {
+        store: false,
+        prompt_cache_key: cacheKey,
+      }),
+    }
+  }
+
+  // Log configuration
+  const config = [
+    `[cache-probe] Starting cache probe${noKey ? ' (--no-key: cache params OMITTED)' : ''}`,
+    `  model: ${request.resolvedModel} (family: ${family})`,
+    `  transport: ${request.transport}`,
+    `  endpoint: ${url}`,
+    `  prompt_cache_key: ${noKey ? 'NOT SENT' : cacheKey}`,
+    `  store: ${noKey ? 'NOT SENT' : 'false'}`,
+    `  system prompt: ~${Math.round(SYSTEM_PROMPT.length / 4)} tokens`,
+    `  delay between calls: ${DELAY_MS}ms`,
+  ].join('\n')
+  logForDebugging(config)
+
+  // Call 1 — Cold
+  const r1 = await sendProbe(url, headers, body, 'CALL 1 — Cold (no cache)')
+  logForDebugging(`[cache-probe]\n${formatResult(r1)}`)
+
+  if (r1.error) {
+    return {
+      type: 'text',
+      value: `Cache probe failed on first call: HTTP ${r1.status}\n${r1.error.slice(0, 300)}\n\nFull details in debug log.`,
+    }
+  }
+
+  // Wait
+  await new Promise((r) => setTimeout(r, DELAY_MS))
+
+  // Call 2 — Warm
+  const r2 = await sendProbe(url, headers, body, 'CALL 2 — Warm (cache expected)')
+  logForDebugging(`[cache-probe]\n${formatResult(r2)}`)
+
+  // --- Comparison ---
+  const fields = [
+    'input_tokens',
+    'output_tokens',
+    'total_tokens',
+    'prompt_tokens',
+    'completion_tokens',
+    'input_tokens_details.cached_tokens',
+    'prompt_tokens_details.cached_tokens',
+    'output_tokens_details.reasoning_tokens',
+  ]
+
+  const comparison: string[] = ['[cache-probe] COMPARISON']
+  comparison.push(
+    `  ${'Field'.padEnd(42)} ${'Call 1'.padStart(8)}  ${'Call 2'.padStart(8)}  ${'Delta'.padStart(8)}`,
+  )
+  comparison.push(`  ${'-'.repeat(72)}`)
+
+  for (const f of fields) {
+    const v1 = getField(r1.usage, f)
+    const v2 = getField(r2.usage, f)
+    if (v1 === undefined && v2 === undefined) continue
+    const d =
+      typeof v1 === 'number' && typeof v2 === 'number' ? v2 - v1 : ''
+    comparison.push(
+      `  ${f.padEnd(42)} ${String(v1 ?? '-').padStart(8)}  ${String(v2 ?? '-').padStart(8)}  ${String(d).padStart(8)}`,
+    )
+  }
+
+  comparison.push('')
+  comparison.push(
+    `  Latency: ${r1.elapsed}ms → ${r2.elapsed}ms (${r2.elapsed - r1.elapsed > 0 ? '+' : ''}${r2.elapsed - r1.elapsed}ms)`,
+  )
+
+  // Header comparison
+  for (const h of ['openai-processing-ms', 'x-ms-region', 'x-ratelimit-remaining']) {
+    const v1 = r1.headers[h]
+    const v2 = r2.headers[h]
+    if (v1 || v2) {
+      comparison.push(`  ${h}: ${v1 ?? '-'} → ${v2 ?? '-'}`)
+    }
+  }
+
+  // Verdict
+  const cached2 =
+    (getField(r2.usage, 'input_tokens_details.cached_tokens') as number) ??
+    (getField(r2.usage, 'prompt_tokens_details.cached_tokens') as number) ??
+    0
+  const input1 =
+    ((r1.usage?.input_tokens ?? r1.usage?.prompt_tokens) as number) ?? 0
+  const input2 =
+    ((r2.usage?.input_tokens ?? r2.usage?.prompt_tokens) as number) ?? 0
+
+  let verdict: string
+  if (cached2 > 0) {
+    const rate = input2 > 0 ? Math.round((cached2 / input2) * 100) : '?'
+    verdict = `CACHE HIT: ${cached2} cached tokens (${rate}% of input)`
+  } else if (input1 === 0 && input2 === 0) {
+    verdict = 'INCONCLUSIVE: Server returns 0 input_tokens — cannot measure'
+  } else if (r2.elapsed < r1.elapsed * 0.6 && input1 > 100) {
+    verdict = `POSSIBLE SILENT CACHING: Call 2 was ${Math.round((1 - r2.elapsed / r1.elapsed) * 100)}% faster but no cached_tokens reported`
+  } else {
+    verdict = 'NO CACHE DETECTED'
+  }
+
+  comparison.push(`\n  Verdict: ${verdict}`)
+
+  // --- Simulate what main's shim code does with this usage ---
+  // codexShim.ts makeUsage() — used for Responses API (GPT-5+/Codex)
+  function mainMakeUsage(u: any) {
+    return {
+      input_tokens: u?.input_tokens ?? 0,
+      output_tokens: u?.output_tokens ?? 0,
+      cache_creation_input_tokens: 0,
+      cache_read_input_tokens: 0,  // ← main hardcodes this to 0
+    }
+  }
+  // openaiShim.ts convertChunkUsage() — used for Chat Completions
+  function mainConvertChunkUsage(u: any) {
+    return {
+      input_tokens: u?.prompt_tokens ?? 0,
+      output_tokens: u?.completion_tokens ?? 0,
+      cache_creation_input_tokens: 0,
+      cache_read_input_tokens: u?.prompt_tokens_details?.cached_tokens ?? 0,
+    }
+  }
+
+  const shimFn = useResponses ? mainMakeUsage : mainConvertChunkUsage
+  const shim1 = shimFn(r1.usage)
+  const shim2 = shimFn(r2.usage)
+
+  comparison.push('')
+  comparison.push(`  --- What main's shim reports (${useResponses ? 'codexShim.makeUsage' : 'openaiShim.convertChunkUsage'}) ---`)
+  comparison.push(`  Call 1: cache_read_input_tokens=${shim1.cache_read_input_tokens}`)
+  comparison.push(`  Call 2: cache_read_input_tokens=${shim2.cache_read_input_tokens}`)
+  if (useResponses && cached2 > 0) {
+    comparison.push(`  BUG: Server returned ${cached2} cached tokens but main's makeUsage() drops it → reports 0`)
+  } else if (!useResponses && shim2.cache_read_input_tokens > 0) {
+    comparison.push(`  OK: Chat Completions path on main correctly reads cached_tokens`)
+  }
+
+  logForDebugging(comparison.join('\n'))
+
+  // User-facing summary
+  const mode = noKey ? ' (NO cache key sent)' : ''
+  const shimLabel = useResponses ? 'codexShim.makeUsage()' : 'openaiShim.convertChunkUsage()'
+  const summary = [
+    `Cache Probe — ${request.resolvedModel} via ${useResponses ? 'Responses API' : 'Chat Completions'}${mode}`,
+    '',
+    `Call 1: ${r1.elapsed}ms, input=${input1}, cached=${(getField(r1.usage, 'input_tokens_details.cached_tokens') as number) ?? (getField(r1.usage, 'prompt_tokens_details.cached_tokens') as number) ?? 0}`,
+    `Call 2: ${r2.elapsed}ms, input=${input2}, cached=${cached2}`,
+    '',
+    verdict,
+    '',
+    `What main's ${shimLabel} reports:`,
+    `  Call 2 cache_read_input_tokens = ${shim2.cache_read_input_tokens}${useResponses && cached2 > 0 ? '  ← BUG: server sent ' + cached2 + ' but main drops it' : ''}`,
+    '',
+    'Full details written to debug log.',
+  ].join('\n')
+
+  return { type: 'text', value: summary }
+}

src/commands/cache-probe/index.ts

@@ -0,0 +1,17 @@
+import type { Command } from '../../commands.js'
+import { isEnvTruthy } from '../../utils/envUtils.js'
+
+const cacheProbe: Command = {
+  type: 'local',
+  name: 'cache-probe',
+  description:
+    'Send identical requests to test prompt caching (results in debug log)',
+  argumentHint: '[model] [--no-key]',
+  isEnabled: () =>
+    isEnvTruthy(process.env.CLAUDE_CODE_USE_OPENAI) ||
+    isEnvTruthy(process.env.CLAUDE_CODE_USE_GITHUB),
+  supportsNonInteractive: false,
+  load: () => import('./cache-probe.js'),
+}
+
+export default cacheProbe

src/commands/install.tsx

@@ -39,16 +39,16 @@ type InstallState = {
   message: string;
   warnings?: string[];
 };
-function getInstallationPath(): string {
+export function getInstallationPath(): string {
   const isWindows = env.platform === 'win32';
   const homeDir = homedir();
   if (isWindows) {
     // Convert to Windows-style path
-    const windowsPath = join(homeDir, '.local', 'bin', 'claude.exe');
+    const windowsPath = join(homeDir, '.local', 'bin', 'openclaude.exe');
     // Replace forward slashes with backslashes for Windows display
     return windowsPath.replace(/\//g, '\\');
   }
-  return '~/.local/bin/claude';
+  return '~/.local/bin/openclaude';
 }
 function SetupNotes(t0) {
   const $ = _c(5);

src/commands/model/model.test.tsx

@@ -1,20 +1,44 @@
 import { afterEach, expect, mock, test } from 'bun:test'
 
+import { getAdditionalModelOptionsCacheScope } from '../../services/api/providerConfig.js'
+import { getAPIProvider } from '../../utils/model/providers.js'
+
 const originalEnv = {
   CLAUDE_CODE_USE_OPENAI: process.env.CLAUDE_CODE_USE_OPENAI,
+  CLAUDE_CODE_USE_GEMINI: process.env.CLAUDE_CODE_USE_GEMINI,
+  CLAUDE_CODE_USE_GITHUB: process.env.CLAUDE_CODE_USE_GITHUB,
+  CLAUDE_CODE_USE_MISTRAL: process.env.CLAUDE_CODE_USE_MISTRAL,
+  CLAUDE_CODE_USE_BEDROCK: process.env.CLAUDE_CODE_USE_BEDROCK,
+  CLAUDE_CODE_USE_VERTEX: process.env.CLAUDE_CODE_USE_VERTEX,
+  CLAUDE_CODE_USE_FOUNDRY: process.env.CLAUDE_CODE_USE_FOUNDRY,
   OPENAI_BASE_URL: process.env.OPENAI_BASE_URL,
+  OPENAI_API_BASE: process.env.OPENAI_API_BASE,
   OPENAI_MODEL: process.env.OPENAI_MODEL,
 }
 
 afterEach(() => {
   mock.restore()
   process.env.CLAUDE_CODE_USE_OPENAI = originalEnv.CLAUDE_CODE_USE_OPENAI
+  process.env.CLAUDE_CODE_USE_GEMINI = originalEnv.CLAUDE_CODE_USE_GEMINI
+  process.env.CLAUDE_CODE_USE_GITHUB = originalEnv.CLAUDE_CODE_USE_GITHUB
+  process.env.CLAUDE_CODE_USE_MISTRAL = originalEnv.CLAUDE_CODE_USE_MISTRAL
+  process.env.CLAUDE_CODE_USE_BEDROCK = originalEnv.CLAUDE_CODE_USE_BEDROCK
+  process.env.CLAUDE_CODE_USE_VERTEX = originalEnv.CLAUDE_CODE_USE_VERTEX
+  process.env.CLAUDE_CODE_USE_FOUNDRY = originalEnv.CLAUDE_CODE_USE_FOUNDRY
   process.env.OPENAI_BASE_URL = originalEnv.OPENAI_BASE_URL
+  process.env.OPENAI_API_BASE = originalEnv.OPENAI_API_BASE
   process.env.OPENAI_MODEL = originalEnv.OPENAI_MODEL
 })
 
 test('opens the model picker without awaiting local model discovery refresh', async () => {
   process.env.CLAUDE_CODE_USE_OPENAI = '1'
+  delete process.env.CLAUDE_CODE_USE_GEMINI
+  delete process.env.CLAUDE_CODE_USE_GITHUB
+  delete process.env.CLAUDE_CODE_USE_MISTRAL
+  delete process.env.CLAUDE_CODE_USE_BEDROCK
+  delete process.env.CLAUDE_CODE_USE_VERTEX
+  delete process.env.CLAUDE_CODE_USE_FOUNDRY
+  delete process.env.OPENAI_API_BASE
   process.env.OPENAI_BASE_URL = 'http://127.0.0.1:8080/v1'
   process.env.OPENAI_MODEL = 'qwen2.5-coder-7b-instruct'
 
@@ -30,7 +54,9 @@ test('opens the model picker without awaiting local model discovery refresh', as
     discoverOpenAICompatibleModelOptions,
   }))
 
-  const { call } = await import(`./model.js?ts=${Date.now()}-${Math.random()}`)
+  expect(getAdditionalModelOptionsCacheScope()).toBe('openai:http://127.0.0.1:8080/v1')
+
+  const { call } = await import('./model.js')
   const result = await Promise.race([
     call(() => {}, {} as never, ''),
     new Promise(resolve => setTimeout(() => resolve('timeout'), 50)),

src/commands/model/model.tsx

@@ -284,7 +284,7 @@ function haveSameModelOptions(left: ModelOption[], right: ModelOption[]): boolea
   });
 }
 async function refreshOpenAIModelOptionsCache(): Promise<void> {
-  if (getAPIProvider() !== 'openai') {
+  if (!getAdditionalModelOptionsCacheScope()?.startsWith('openai:')) {
     return;
   }
   try {

src/commands/onboard-github/index.ts

@@ -4,7 +4,7 @@ const onboardGithub: Command = {
   name: 'onboard-github',
   aliases: ['onboarding-github', 'onboardgithub', 'onboardinggithub'],
   description:
-    'Interactive setup for GitHub Models: device login or PAT, saved to secure storage',
+    'Interactive setup for GitHub Copilot: OAuth device login stored in secure storage',
   type: 'local-jsx',
   load: () => import('./onboard-github.js'),
 }

src/commands/onboard-github/onboard-github.tsx

@@ -2,9 +2,9 @@ import * as React from 'react'
 import { useCallback, useState } from 'react'
 import { Select } from '../../components/CustomSelect/select.js'
 import { Spinner } from '../../components/Spinner.js'
-import TextInput from '../../components/TextInput.js'
 import { Box, Text } from '../../ink.js'
 import {
+  exchangeForCopilotToken,
   openVerificationUri,
   pollAccessToken,
   requestDeviceCode,
@@ -15,7 +15,7 @@ import {
   readGithubModelsToken,
   saveGithubModelsToken,
 } from '../../utils/githubModelsCredentials.js'
-import { updateSettingsForSource } from '../../utils/settings/settings.js'
+import { getSettingsForSource, updateSettingsForSource } from '../../utils/settings/settings.js'
 
 const DEFAULT_MODEL = 'github:copilot'
 const FORCE_RELOGIN_ARGS = new Set([
@@ -27,11 +27,25 @@ const FORCE_RELOGIN_ARGS = new Set([
   '--reauth',
 ])
 
-type Step =
-  | 'menu'
-  | 'device-busy'
-  | 'pat'
-  | 'error'
+type Step = 'menu' | 'device-busy' | 'error'
+
+const PROVIDER_SPECIFIC_KEYS = new Set([
+  'CLAUDE_CODE_USE_OPENAI',
+  'CLAUDE_CODE_USE_GEMINI',
+  'CLAUDE_CODE_USE_BEDROCK',
+  'CLAUDE_CODE_USE_VERTEX',
+  'CLAUDE_CODE_USE_FOUNDRY',
+  'OPENAI_BASE_URL',
+  'OPENAI_API_BASE',
+  'OPENAI_API_KEY',
+  'OPENAI_MODEL',
+  'GEMINI_API_KEY',
+  'GOOGLE_API_KEY',
+  'GEMINI_BASE_URL',
+  'GEMINI_MODEL',
+  'GEMINI_ACCESS_TOKEN',
+  'GEMINI_AUTH_MODE',
+])
 
 export function shouldForceGithubRelogin(args?: string): boolean {
   const normalized = (args ?? '').trim().toLowerCase()
@@ -41,15 +55,29 @@ export function shouldForceGithubRelogin(args?: string): boolean {
   return normalized.split(/\s+/).some(arg => FORCE_RELOGIN_ARGS.has(arg))
 }
 
+const GITHUB_PAT_PREFIXES = ['ghp_', 'gho_','ghs_', 'ghr_', 'github_pat_']
+
+function isGithubPat(token: string): boolean {
+  return GITHUB_PAT_PREFIXES.some(prefix => token.startsWith(prefix))
+}
+
 export function hasExistingGithubModelsLoginToken(
   env: NodeJS.ProcessEnv = process.env,
   storedToken?: string,
 ): boolean {
   const envToken = env.GITHUB_TOKEN?.trim() || env.GH_TOKEN?.trim()
   if (envToken) {
+    // PATs are no longer supported - require OAuth re-auth
+    if (isGithubPat(envToken)) {
+      return false
+    }
     return true
   }
   const persisted = (storedToken ?? readGithubModelsToken())?.trim()
+  // PATs are no longer supported - require OAuth re-auth
+  if (persisted && isGithubPat(persisted)) {
+    return false
+  }
   return Boolean(persisted)
 }
 
@@ -97,8 +125,21 @@ export function applyGithubOnboardingProcessEnv(
 }
 
 function mergeUserSettingsEnv(model: string): { ok: boolean; detail?: string } {
+  const currentSettings = getSettingsForSource('userSettings')
+  const currentEnv = currentSettings?.env ?? {}
+
+  const newEnv: Record<string, string> = {}
+  for (const [key, value] of Object.entries(currentEnv)) {
+    if (!PROVIDER_SPECIFIC_KEYS.has(key)) {
+      newEnv[key] = value
+    }
+  }
+
+  newEnv.CLAUDE_CODE_USE_GITHUB = '1'
+  newEnv.OPENAI_MODEL = model
+
   const { error } = updateSettingsForSource('userSettings', {
-    env: buildGithubOnboardingSettingsEnv(model) as any,
+    env: newEnv,
   })
   if (error) {
     return { ok: false, detail: error.message }
@@ -143,12 +184,14 @@ function OnboardGithub(props: {
     user_code: string
     verification_uri: string
   } | null>(null)
-  const [patDraft, setPatDraft] = useState('')
-  const [cursorOffset, setCursorOffset] = useState(0)
 
   const finalize = useCallback(
-    async (token: string, model: string = DEFAULT_MODEL) => {
-      const saved = saveGithubModelsToken(token)
+    async (
+      token: string,
+      model: string = DEFAULT_MODEL,
+      oauthToken?: string,
+    ) => {
+      const saved = saveGithubModelsToken(token, oauthToken)
       if (!saved.success) {
         setErrorMsg(saved.warning ?? 'Could not save token to secure storage.')
         setStep('error')
@@ -165,8 +208,18 @@ function OnboardGithub(props: {
         setStep('error')
         return
       }
+      // Clear stale provider-specific env vars from the current session
+      // so resolveProviderRequest() doesn't pick up a previous provider's
+      // base URL or key after onboarding completes.
+      for (const key of PROVIDER_SPECIFIC_KEYS) {
+        delete process.env[key]
+      }
+      process.env.CLAUDE_CODE_USE_GITHUB = '1'
+      process.env.OPENAI_MODEL = model.trim() || DEFAULT_MODEL
+      hydrateGithubModelsTokenFromSecureStorage()
+      onChangeAPIKey()
       onDone(
-        'GitHub Models onboard complete. Token stored in secure storage; user settings updated. Restart if the model does not switch.',
+        'GitHub Copilot onboard complete. Copilot token and OAuth token stored in secure storage (Windows/Linux: ~/.claude/.credentials.json, macOS: Keychain fallback to ~/.claude/.credentials.json); user settings updated. Restart if the model does not switch.',
         { display: 'user' },
       )
     },
@@ -184,11 +237,12 @@ function OnboardGithub(props: {
         verification_uri: device.verification_uri,
       })
       await openVerificationUri(device.verification_uri)
-      const token = await pollAccessToken(device.device_code, {
+      const oauthToken = await pollAccessToken(device.device_code, {
         initialInterval: device.interval,
         timeoutSeconds: device.expires_in,
       })
-      await finalize(token, DEFAULT_MODEL)
+      const copilotToken = await exchangeForCopilotToken(oauthToken)
+      await finalize(copilotToken.token, DEFAULT_MODEL, oauthToken)
     } catch (e) {
       setErrorMsg(e instanceof Error ? e.message : String(e))
       setStep('error')
@@ -227,7 +281,7 @@ function OnboardGithub(props: {
   if (step === 'device-busy') {
     return (
       <Box flexDirection="column" gap={1}>
-        <Text>GitHub device login</Text>
+        <Text>GitHub Copilot sign-in</Text>
         {deviceHint ? (
           <>
             <Text>
@@ -246,43 +300,11 @@ function OnboardGithub(props: {
     )
   }
 
-  if (step === 'pat') {
-    return (
-      <Box flexDirection="column" gap={1}>
-        <Text>Paste a GitHub personal access token with access to GitHub Models.</Text>
-        <Text dimColor>Input is masked. Enter to submit; Esc to go back.</Text>
-        <TextInput
-          value={patDraft}
-          mask="*"
-          onChange={setPatDraft}
-          onSubmit={async (value: string) => {
-            const t = value.trim()
-            if (!t) {
-              return
-            }
-            await finalize(t, DEFAULT_MODEL)
-          }}
-          onExit={() => {
-            setStep('menu')
-            setPatDraft('')
-          }}
-          columns={80}
-          cursorOffset={cursorOffset}
-          onChangeCursorOffset={setCursorOffset}
-        />
-      </Box>
-    )
-  }
-
   const menuOptions = [
     {
-      label: 'Sign in with browser (device code)',
+      label: 'Sign in with browser',
       value: 'device' as const,
     },
-    {
-      label: 'Paste personal access token',
-      value: 'pat' as const,
-    },
     {
       label: 'Cancel',
       value: 'cancel' as const,
@@ -291,7 +313,7 @@ function OnboardGithub(props: {
 
   return (
     <Box flexDirection="column" gap={1}>
-      <Text bold>GitHub Models setup</Text>
+      <Text bold>GitHub Copilot setup</Text>
       <Text dimColor>
         Stores your token in the OS credential store (macOS Keychain when available)
         and enables CLAUDE_CODE_USE_GITHUB in your user settings - no export
@@ -304,10 +326,6 @@ function OnboardGithub(props: {
             onDone('GitHub onboard cancelled', { display: 'system' })
             return
           }
-          if (v === 'pat') {
-            setStep('pat')
-            return
-          }
           void runDeviceFlow()
         }}
       />

src/commands/provider/provider.tsx

@@ -22,11 +22,14 @@ import {
 import {
   buildCodexProfileEnv,
   buildGeminiProfileEnv,
+  buildMistralProfileEnv,
   buildOllamaProfileEnv,
   buildOpenAIProfileEnv,
   createProfileFile,
   DEFAULT_GEMINI_BASE_URL,
   DEFAULT_GEMINI_MODEL,
+  DEFAULT_MISTRAL_BASE_URL,
+  DEFAULT_MISTRAL_MODEL,
   deleteProfileFile,
   loadProfileFile,
   maskSecretForDisplay,
@@ -74,6 +77,14 @@ type Step =
       baseUrl: string | null
       defaultModel: string
     }
+  | { name: 'mistral-key'; defaultModel: string }
+  | { name: 'mistral-base'; apiKey: string; defaultModel: string }
+  | {
+      name: 'mistral-model'
+      apiKey: string
+      baseUrl: string | null
+      defaultModel: string
+    }
   | { name: 'gemini-auth-method' }
   | { name: 'gemini-key' }
   | { name: 'gemini-access-token' }
@@ -116,6 +127,8 @@ type ProviderWizardDefaults = {
   openAIModel: string
   openAIBaseUrl: string
   geminiModel: string
+  mistralModel: string
+  mistralBaseUrl: string
 }
 
 function isEnvTruthy(value: string | undefined): boolean {
@@ -147,11 +160,19 @@ export function getProviderWizardDefaults(
   const safeGeminiModel =
     sanitizeProviderConfigValue(processEnv.GEMINI_MODEL, processEnv) ||
     DEFAULT_GEMINI_MODEL
+  const safeMistralModel =
+    sanitizeProviderConfigValue(processEnv.MISTRAL_MODEL, processEnv) ||
+    DEFAULT_MISTRAL_MODEL
+  const safeMistralBaseUrl =
+    sanitizeProviderConfigValue(processEnv.MISTRAL_BASE_URL, processEnv) ||
+    DEFAULT_MISTRAL_BASE_URL
 
   return {
     openAIModel: safeOpenAIModel,
     openAIBaseUrl: safeOpenAIBaseUrl,
     geminiModel: safeGeminiModel,
+    mistralModel: safeMistralModel,
+    mistralBaseUrl: safeMistralBaseUrl,
   }
 }
 
@@ -178,6 +199,21 @@ export function buildCurrentProviderSummary(options?: {
     }
   }
 
+  if (isEnvTruthy(processEnv.CLAUDE_CODE_USE_MISTRAL)) {
+    return {
+      providerLabel: 'Mistral',
+      modelLabel: getSafeDisplayValue(
+        processEnv.MISTRAL_MODEL ?? DEFAULT_MISTRAL_MODEL,
+        processEnv
+      ),
+      endpointLabel: getSafeDisplayValue(
+        processEnv.MISTRAL_BASE_URL ?? DEFAULT_MISTRAL_BASE_URL,
+        processEnv
+      ),
+      savedProfileLabel,
+    }
+  }
+
   if (isEnvTruthy(processEnv.CLAUDE_CODE_USE_GITHUB)) {
     return {
       providerLabel: 'GitHub Models',
@@ -259,6 +295,24 @@ function buildSavedProfileSummary(
               ? 'configured'
               : undefined,
       }
+    case 'mistral':
+      return {
+        providerLabel: 'Mistral',
+        modelLabel: getSafeDisplayValue(
+          env.MISTRAL_MODEL ?? DEFAULT_MISTRAL_MODEL,
+          process.env,
+          env,
+        ),
+        endpointLabel: getSafeDisplayValue(
+          env.MISTRAL_BASE_URL ?? DEFAULT_MISTRAL_BASE_URL,
+          process.env,
+          env,
+        ),
+        credentialLabel:
+          maskSecretForDisplay(env.MISTRAL_API_KEY) !== undefined
+            ? 'configured'
+            : undefined,
+      }
     case 'codex':
       return {
         providerLabel: 'Codex',
@@ -473,6 +527,11 @@ function ProviderChooser({
       value: 'gemini',
       description: 'Use Google Gemini with API key, access token, or local ADC',
     },
+    {
+      label: 'Mistral',
+      value: 'mistral',
+      description: 'Use Mistral with API key'
+    },
     {
       label: 'Codex',
       value: 'codex',
@@ -971,6 +1030,11 @@ export function ProviderWizard({
               })
             } else if (value === 'gemini') {
               setStep({ name: 'gemini-auth-method' })
+            } else if (value === 'mistral') {
+              setStep({
+                name: 'mistral-key',
+                defaultModel: defaults.mistralModel,
+              })
             } else if (value === 'clear') {
               const filePath = deleteProfileFile()
               onDone(`Removed saved provider profile at ${filePath}. Restart OpenClaude to go back to normal startup.`, {
@@ -1110,6 +1174,101 @@ export function ProviderWizard({
         />
       )
 
+    case 'mistral-key':
+      return (
+        <TextEntryDialog
+          resetStateKey={step.name}
+          title="Mistral setup"
+          subtitle="Step 1 of 3"
+          description={
+            process.env.MISTRAL_API_KEY
+              ? 'Enter an API key, or leave this blank to reuse the current MISTRAL_API_KEY from this session.'
+              : 'Enter the API key for your Mistral provider.'
+          }
+          initialValue=""
+          placeholder="..."
+          mask="*"
+          allowEmpty={Boolean(process.env.MISTRAL_API_KEY)}
+          validate={value => {
+            const candidate = value.trim() || process.env.MISTRAL_API_KEY || ''
+            return sanitizeApiKey(candidate)
+              ? null
+              : 'Enter a real API key. Placeholder values like SUA_CHAVE are not valid.'
+          }}
+          onSubmit={value => {
+            const apiKey = value.trim() || process.env.MISTRAL_API_KEY || ''
+            setStep({
+              name: 'mistral-base',
+              apiKey,
+              defaultModel: step.defaultModel,
+            })
+          }}
+          onCancel={() => setStep({ name: 'choose' })}
+        />
+      )
+
+    case 'mistral-base':
+      return (
+        <TextEntryDialog
+          resetStateKey={step.name}
+          title="Mistral setup"
+          subtitle="Step 2 of 3"
+          description={`Optionally enter a base URL. Leave blank for ${DEFAULT_MISTRAL_BASE_URL}.`}
+          initialValue={
+            defaults.mistralBaseUrl === DEFAULT_MISTRAL_BASE_URL
+              ? ''
+              : defaults.mistralBaseUrl
+          }
+          placeholder={DEFAULT_MISTRAL_BASE_URL}
+          allowEmpty
+          onSubmit={value => {
+            setStep({
+              name: 'mistral-model',
+              apiKey: step.apiKey,
+              baseUrl: value.trim() || null,
+              defaultModel: step.defaultModel,
+            })
+          }}
+          onCancel={() =>
+            setStep({
+              name: 'mistral-key',
+              defaultModel: step.defaultModel,
+            })
+          }
+        />
+      )
+
+    case 'mistral-model':
+      return (
+        <TextEntryDialog
+          resetStateKey={step.name}
+          title="Mistral setup"
+          subtitle="Step 3 of 3"
+          description={`Enter a model name. Leave blank for ${step.defaultModel}.`}
+          initialValue={defaults.mistralModel ?? step.defaultModel}
+          placeholder={step.defaultModel}
+          allowEmpty
+          onSubmit={value => {
+            const env = buildMistralProfileEnv({
+              model: value.trim() || step.defaultModel,
+              baseUrl: step.baseUrl,
+              apiKey: step.apiKey,
+              processEnv: process.env,
+            })
+            if (env) {
+              finishProfileSave(onDone, 'mistral', env)
+            }
+          }}
+          onCancel={() =>
+            setStep({
+              name: 'mistral-base',
+              apiKey: step.apiKey,
+              defaultModel: step.defaultModel,
+            })
+          }
+        />
+      )
+
     case 'gemini-auth-method': {
       const hasShellGeminiKey = Boolean(
         process.env.GEMINI_API_KEY || process.env.GOOGLE_API_KEY,

src/commands/sandbox-toggle/sandbox-toggle.tsx

@@ -65,7 +65,7 @@ export async function call(onDone: (result?: string) => void, _context: unknown,
 
       // Get the local settings path and make it relative to cwd
       const localSettingsPath = getSettingsFilePathForSource('localSettings');
-      const relativePath = localSettingsPath ? relative(getCwdState(), localSettingsPath) : '.claude/settings.local.json';
+      const relativePath = localSettingsPath ? relative(getCwdState(), localSettingsPath) : '.openclaude/settings.local.json';
       const message = color('success', themeName)(`Added "${cleanPattern}" to excluded commands in ${relativePath}`);
       onDone(message);
       return null;

src/commands/wiki/index.ts

@@ -0,0 +1,12 @@
+import type { Command } from '../../commands.js'
+
+const wiki = {
+  type: 'local-jsx',
+  name: 'wiki',
+  description: 'Initialize and inspect the OpenClaude project wiki',
+  argumentHint: '[init|status]',
+  immediate: true,
+  load: () => import('./wiki.js'),
+} satisfies Command
+
+export default wiki

src/commands/wiki/wiki.tsx

@@ -0,0 +1,123 @@
+import React from 'react'
+import { COMMON_HELP_ARGS, COMMON_INFO_ARGS } from '../../constants/xml.js'
+import { ingestLocalWikiSource } from '../../services/wiki/ingest.js'
+import { initializeWiki } from '../../services/wiki/init.js'
+import { getWikiStatus } from '../../services/wiki/status.js'
+import type {
+  LocalJSXCommandCall,
+  LocalJSXCommandOnDone,
+} from '../../types/command.js'
+import { getCwd } from '../../utils/cwd.js'
+
+function renderHelp(): string {
+  return `Usage: /wiki [init|status|ingest <path>]
+
+Manage the OpenClaude project wiki stored in .openclaude/wiki.
+
+Commands:
+  /wiki init    Initialize the wiki structure in the current project
+  /wiki status  Show wiki status and page/source counts
+  /wiki ingest  Ingest a local file into wiki sources
+
+Examples:
+  /wiki init
+  /wiki status
+  /wiki ingest README.md`
+}
+
+function formatInitResult(result: Awaited<ReturnType<typeof initializeWiki>>): string {
+  const lines = [`Initialized OpenClaude wiki at ${result.root}`]
+
+  if (result.alreadyExisted) {
+    lines.push('', 'Wiki already existed. No new files were created.')
+    return lines.join('\n')
+  }
+
+  if (result.createdFiles.length > 0) {
+    lines.push('', 'Created files:')
+    for (const file of result.createdFiles) {
+      lines.push(`- ${file}`)
+    }
+  }
+
+  return lines.join('\n')
+}
+
+function formatStatus(status: Awaited<ReturnType<typeof getWikiStatus>>): string {
+  if (!status.initialized) {
+    return `OpenClaude wiki is not initialized in this project.\n\nRun /wiki init to create ${status.root}.`
+  }
+
+  return [
+    'OpenClaude wiki status',
+    '',
+    `Root: ${status.root}`,
+    `Pages: ${status.pageCount}`,
+    `Sources: ${status.sourceCount}`,
+    `Schema: ${status.hasSchema ? 'present' : 'missing'}`,
+    `Index: ${status.hasIndex ? 'present' : 'missing'}`,
+    `Log: ${status.hasLog ? 'present' : 'missing'}`,
+    `Last updated: ${status.lastUpdatedAt ?? 'unknown'}`,
+  ].join('\n')
+}
+
+function formatIngestResult(
+  result: Awaited<ReturnType<typeof ingestLocalWikiSource>>,
+): string {
+  return [
+    `Ingested ${result.sourceFile} into the OpenClaude wiki.`,
+    '',
+    `Title: ${result.title}`,
+    `Source note: ${result.sourceNote}`,
+    `Summary: ${result.summary}`,
+  ].join('\n')
+}
+
+async function runWikiCommand(
+  onDone: LocalJSXCommandOnDone,
+  args: string,
+): Promise<void> {
+  const cwd = getCwd()
+  const normalized = args.trim().toLowerCase()
+
+  if (COMMON_HELP_ARGS.includes(normalized) || COMMON_INFO_ARGS.includes(normalized)) {
+    onDone(renderHelp(), { display: 'system' })
+    return
+  }
+
+  if (!normalized || normalized === 'status') {
+    onDone(formatStatus(await getWikiStatus(cwd)), { display: 'system' })
+    return
+  }
+
+  if (normalized === 'init') {
+    onDone(formatInitResult(await initializeWiki(cwd)), { display: 'system' })
+    return
+  }
+
+  if (normalized.startsWith('ingest')) {
+    const pathArg = args.trim().slice('ingest'.length).trim()
+    if (!pathArg) {
+      onDone('Usage: /wiki ingest <local-file-path>', { display: 'system' })
+      return
+    }
+
+    onDone(formatIngestResult(await ingestLocalWikiSource(cwd, pathArg)), {
+      display: 'system',
+    })
+    return
+  }
+
+  onDone(`Unknown wiki subcommand: ${args.trim()}\n\n${renderHelp()}`, {
+    display: 'system',
+  })
+}
+
+export const call: LocalJSXCommandCall = async (
+  onDone,
+  _context,
+  args,
+): Promise<React.ReactNode> => {
+  await runWikiCommand(onDone, args ?? '')
+  return null
+}

src/components/AutoUpdater.tsx

@@ -188,9 +188,9 @@ export function AutoUpdater({
             ✓ Update installed · Restart to apply
           </Text>}
       {(autoUpdaterResult?.status === 'install_failed' || autoUpdaterResult?.status === 'no_permissions') && <Text color="error" wrap="truncate">
-          ✗ Auto-update failed &middot; Try <Text bold>claude doctor</Text> or{' '}
+          ✗ Auto-update failed &middot; Try <Text bold>openclaude doctor</Text> or{' '}
           <Text bold>
-            {hasLocalInstall ? `cd ~/.claude/local && npm update ${MACRO.PACKAGE_URL}` : `npm i -g ${MACRO.PACKAGE_URL}`}
+            {hasLocalInstall ? `cd ~/.openclaude/local && npm update ${MACRO.PACKAGE_URL}` : `npm i -g ${MACRO.PACKAGE_URL}`}
           </Text>
         </Text>}
     </Box>;

src/components/BaseTextInput.tsx

@@ -31,9 +31,11 @@ export function BaseTextInput(t0) {
   } = t0;
   const {
     onInput,
+    value,
     renderedValue,
     cursorLine,
-    cursorColumn
+    cursorColumn,
+    offset,
   } = inputState;
   const t1 = Boolean(props.focus && props.showCursor && terminalFocus);
   let t2;
@@ -78,7 +80,7 @@ export function BaseTextInput(t0) {
     renderedPlaceholder
   } = renderPlaceholder({
     placeholder: props.placeholder,
-    value: props.value,
+    value,
     showCursor: props.showCursor,
     focus: props.focus,
     terminalFocus,
@@ -88,9 +90,9 @@ export function BaseTextInput(t0) {
   useInput(wrappedOnInput, {
     isActive: props.focus
   });
-  const commandWithoutArgs = props.value && props.value.trim().indexOf(" ") === -1 || props.value && props.value.endsWith(" ");
-  const showArgumentHint = Boolean(props.argumentHint && props.value && commandWithoutArgs && props.value.startsWith("/"));
-  const cursorFiltered = props.showCursor && props.highlights ? props.highlights.filter(h => h.dimColor || props.cursorOffset < h.start || props.cursorOffset >= h.end) : props.highlights;
+  const commandWithoutArgs = value && value.trim().indexOf(" ") === -1 || value && value.endsWith(" ");
+  const showArgumentHint = Boolean(props.argumentHint && value && commandWithoutArgs && value.startsWith("/"));
+  const cursorFiltered = props.showCursor && props.highlights ? props.highlights.filter(h => h.dimColor || offset < h.start || offset >= h.end) : props.highlights;
   const {
     viewportCharOffset,
     viewportCharEnd
@@ -102,13 +104,13 @@ export function BaseTextInput(t0) {
   })) : cursorFiltered;
   const hasHighlights = filteredHighlights && filteredHighlights.length > 0;
   if (hasHighlights) {
-    return <Box ref={cursorRef}><HighlightedInput text={renderedValue} highlights={filteredHighlights} />{showArgumentHint && <Text dimColor={true}>{props.value?.endsWith(" ") ? "" : " "}{props.argumentHint}</Text>}{children}</Box>;
+    return <Box ref={cursorRef}><HighlightedInput text={renderedValue} highlights={filteredHighlights} />{showArgumentHint && <Text dimColor={true}>{value.endsWith(" ") ? "" : " "}{props.argumentHint}</Text>}{children}</Box>;
   }
   const T0 = Box;
   const T1 = Text;
   const t4 = "truncate-end";
   const t5 = showPlaceholder && props.placeholderElement ? props.placeholderElement : showPlaceholder && renderedPlaceholder ? <Ansi>{renderedPlaceholder}</Ansi> : <Ansi>{renderedValue}</Ansi>;
-  const t6 = showArgumentHint && <Text dimColor={true}>{props.value?.endsWith(" ") ? "" : " "}{props.argumentHint}</Text>;
+  const t6 = showArgumentHint && <Text dimColor={true}>{value.endsWith(" ") ? "" : " "}{props.argumentHint}</Text>;
   let t7;
   if ($[4] !== T1 || $[5] !== children || $[6] !== props || $[7] !== t5 || $[8] !== t6) {
     t7 = <T1 wrap={t4} dimColor={props.dimColor}>{t5}{t6}{children}</T1>;

src/components/ConsoleOAuthFlow.test.tsx

@@ -103,7 +103,7 @@ test('login picker shows the third-party platform option', async () => {
   expect(output).toContain('3rd-party platform')
 })
 
-test('third-party provider branch opens the provider wizard', async () => {
+test('third-party provider branch opens the first-run provider manager', async () => {
   const output = await renderFrame(
     <ConsoleOAuthFlow
       initialStatus={{ state: 'platform_setup' }}
@@ -111,7 +111,9 @@ test('third-party provider branch opens the provider wizard', async () => {
     />,
   )
 
-  expect(output).toContain('Set up a provider profile')
-  expect(output).toContain('OpenAI-compatible')
+  expect(output).toContain('Set up provider')
+  expect(output).toContain('Anthropic')
+  expect(output).toContain('OpenAI')
   expect(output).toContain('Ollama')
+  expect(output).toContain('LM Studio')
 })

src/components/ConsoleOAuthFlow.tsx

@@ -12,7 +12,7 @@ import { OAuthService } from '../services/oauth/index.js';
 import { getOauthAccountInfo, validateForceLoginOrg } from '../utils/auth.js';
 import { logError } from '../utils/log.js';
 import { getSettings_DEPRECATED } from '../utils/settings/settings.js';
-import { ProviderWizard } from '../commands/provider/provider.js';
+import { ProviderManager } from './ProviderManager.js';
 import { Select } from './CustomSelect/select.js';
 import { KeyboardShortcutHint } from './design-system/KeyboardShortcutHint.js';
 import { Spinner } from './Spinner.js';
@@ -450,16 +450,17 @@ function OAuthStatusMessage({
 
     case 'platform_setup':
       return (
-        <ProviderWizard
+        <ProviderManager
+          mode="first-run"
           onDone={result => {
-            if (!result) {
+            if (!result || result.action !== 'saved' || !result.message) {
               setOAuthStatus({ state: 'idle' })
               return
             }
 
             setOAuthStatus({
               state: 'platform_setup_complete',
-              message: result,
+              message: result.message,
             })
           }}
         />

src/components/CustomSelect/select.tsx

@@ -285,7 +285,7 @@ export function Select(t0) {
       onChange,
       onCancel,
       onFocus,
-      focusValue: defaultFocusValue
+      defaultFocusValue,
     };
     $[7] = defaultFocusValue;
     $[8] = defaultValue;

src/components/CustomSelect/use-multi-select-state.ts

@@ -1,5 +1,4 @@
 import { useCallback, useState } from 'react'
-import { isDeepStrictEqual } from 'util'
 import { useRegisterOverlay } from '../../context/overlayContext.js'
 import type { InputEvent } from '../../ink/events/input-event.js'
 // eslint-disable-next-line custom-rules/prefer-use-keybindings -- raw space/arrow multiselect input
@@ -9,6 +8,7 @@ import {
   normalizeFullWidthSpace,
 } from '../../utils/stringUtils.js'
 import type { OptionWithDescription } from './select.js'
+import { optionsNavigateEqual } from './use-select-navigation.js'
 import { useSelectNavigation } from './use-select-navigation.js'
 
 export type UseMultiSelectStateProps<T> = {
@@ -174,7 +174,7 @@ export function useMultiSelectState<T>({
   // and the deleted ui/useMultiSelectState.ts — without this, MCPServerDesktopImportDialog
   // keeps colliding servers checked after getAllMcpConfigs() resolves.
   const [lastOptions, setLastOptions] = useState(options)
-  if (options !== lastOptions && !isDeepStrictEqual(options, lastOptions)) {
+  if (options !== lastOptions && !optionsNavigateEqual(options, lastOptions)) {
     setSelectedValues(defaultValue)
     setLastOptions(options)
   }

src/components/CustomSelect/use-select-navigation.ts

@@ -6,10 +6,34 @@ import {
   useRef,
   useState,
 } from 'react'
-import { isDeepStrictEqual } from 'util'
 import OptionMap from './option-map.js'
 import type { OptionWithDescription } from './select.js'
 
+/**
+ * Compare two option arrays for structural equality on properties that
+ * affect navigation behavior. ReactNode `label` and function `onChange`
+ * are intentionally excluded — they are identity-unstable (new reference
+ * each render) but don't change navigation semantics.
+ */
+export function optionsNavigateEqual<T>(
+  a: OptionWithDescription<T>[],
+  b: OptionWithDescription<T>[],
+): boolean {
+  if (a.length !== b.length) return false
+  for (let i = 0; i < a.length; i++) {
+    const ao = a[i]!
+    const bo = b[i]!
+    if (
+      ao.value !== bo.value ||
+      ao.disabled !== bo.disabled ||
+      ao.type !== bo.type
+    ) {
+      return false
+    }
+  }
+  return true
+}
+
 type State<T> = {
   /**
    * Map where key is option's value and value is option's index.
@@ -524,7 +548,7 @@ export function useSelectNavigation<T>({
 
   const [lastOptions, setLastOptions] = useState(options)
 
-  if (options !== lastOptions && !isDeepStrictEqual(options, lastOptions)) {
+  if (options !== lastOptions && !optionsNavigateEqual(options, lastOptions)) {
     dispatch({
       type: 'reset',
       state: createDefaultState({

src/components/CustomSelect/use-select-state.ts

@@ -35,6 +35,11 @@ export type UseSelectStateProps<T> = {
    */
   onFocus?: (value: T) => void
 
+  /**
+   * Initial value to focus when the component mounts.
+   */
+  defaultFocusValue?: T
+
   /**
    * Value to focus
    */
@@ -131,6 +136,7 @@ export function useSelectState<T>({
   onChange,
   onCancel,
   onFocus,
+  defaultFocusValue,
   focusValue,
 }: UseSelectStateProps<T>): SelectState<T> {
   const [value, setValue] = useState<T | undefined>(defaultValue)
@@ -138,7 +144,7 @@ export function useSelectState<T>({
   const navigation = useSelectNavigation<T>({
     visibleOptionCount,
     options,
-    initialFocusValue: undefined,
+    initialFocusValue: defaultFocusValue,
     onFocus,
     focusValue,
   })

src/components/HelpV2/HelpV2.tsx

@@ -112,7 +112,7 @@ export function HelpV2(t0) {
     }
     tabs.push(t6);
     if (false && antOnlyCommands.length > 0) {
-      let t7;
+    let t7;
       if ($[26] !== antOnlyCommands || $[27] !== close || $[28] !== columns || $[29] !== maxHeight) {
         t7 = <Tab key="internal-only" title="[internal-only]"><Commands commands={antOnlyCommands} maxHeight={maxHeight} columns={columns} title="Browse internal-only commands:" onCancel={close} /></Tab>;
         $[26] = antOnlyCommands;

src/components/PromptInput/PromptInput.tsx

@@ -252,14 +252,24 @@ function PromptInput({
     show: false
   });
   const [cursorOffset, setCursorOffset] = useState<number>(input.length);
-  // Track the last input value set via internal handlers so we can detect
-  // external input changes (e.g. speech-to-text injection) and move cursor to end.
+  // Track the last input value set via internal handlers so external updates
+  // (for example speech-to-text injection) can still move the cursor to end
+  // without clobbering a pending internal keystroke during render.
   const lastInternalInputRef = React.useRef(input);
-  if (input !== lastInternalInputRef.current) {
-    // Input changed externally (not through any internal handler) — move cursor to end
-    setCursorOffset(input.length);
+  const lastPropInputRef = React.useRef(input);
+  React.useLayoutEffect(() => {
+    if (input === lastPropInputRef.current) {
+      return;
+    }
+
+    lastPropInputRef.current = input;
+    if (input === lastInternalInputRef.current) {
+      return;
+    }
+
     lastInternalInputRef.current = input;
-  }
+    setCursorOffset(prev => prev === input.length ? prev : input.length);
+  }, [input]);
   // Wrap onInputChange to track internal changes before they trigger re-render
   const trackAndSetInput = React.useCallback((value: string) => {
     lastInternalInputRef.current = value;
@@ -2201,7 +2211,7 @@ function PromptInput({
     multiline: true,
     onSubmit,
     onChange,
-    value: historyMatch ? getValueFromInput(typeof historyMatch === 'string' ? historyMatch : historyMatch.display) : input,
+    value: isSearchingHistory && historyMatch ? getValueFromInput(typeof historyMatch === 'string' ? historyMatch : historyMatch.display) : input,
     // History navigation is handled via TextInput props (onHistoryUp/onHistoryDown),
     // NOT via useKeybindings. This allows useTextInput's upOrHistoryUp/downOrHistoryDown
     // to try cursor movement first and only fall through to history navigation when the

src/components/ProviderManager.test.tsx

@@ -6,6 +6,7 @@ import stripAnsi from 'strip-ansi'
 
 import { createRoot } from '../ink.js'
 import { AppStateProvider } from '../state/AppState.js'
+import { KeybindingSetup } from '../keybindings/KeybindingProviderSetup.js'
 
 const SYNC_START = '\x1B[?2026h'
 const SYNC_END = '\x1B[?2026l'
@@ -106,19 +107,30 @@ function createDeferred<T>(): {
   return { promise, resolve }
 }
 
-function mockProviderProfilesModule(): void {
+function mockProviderProfilesModule(options?: {
+  addProviderProfile?: (...args: unknown[]) => unknown
+}): void {
   mock.module('../utils/providerProfiles.js', () => ({
-    addProviderProfile: () => null,
+    addProviderProfile: options?.addProviderProfile ?? (() => null),
     applyActiveProviderProfileFromConfig: () => {},
     deleteProviderProfile: () => ({ removed: false, activeProfileId: null }),
     getActiveProviderProfile: () => null,
-    getProviderPresetDefaults: () => ({
-      provider: 'openai',
-      name: 'Mock provider',
-      baseUrl: 'http://localhost:11434/v1',
-      model: 'mock-model',
-      apiKey: '',
-    }),
+    getProviderPresetDefaults: (preset: string) =>
+      preset === 'ollama'
+        ? {
+            provider: 'openai',
+            name: 'Ollama',
+            baseUrl: 'http://localhost:11434/v1',
+            model: 'llama3.1:8b',
+            apiKey: '',
+          }
+        : {
+            provider: 'openai',
+            name: 'Mock provider',
+            baseUrl: 'http://localhost:11434/v1',
+            model: 'mock-model',
+            apiKey: '',
+          },
     getProviderProfiles: () => [],
     setActiveProviderProfile: () => null,
     updateProviderProfile: () => null,
@@ -128,8 +140,27 @@ function mockProviderProfilesModule(): void {
 function mockProviderManagerDependencies(
   syncRead: () => string | undefined,
   asyncRead: () => Promise<string | undefined>,
+  options?: {
+    addProviderProfile?: (...args: unknown[]) => unknown
+    hasLocalOllama?: () => Promise<boolean>
+    listOllamaModels?: () => Promise<
+      Array<{
+        name: string
+        sizeBytes?: number | null
+        family?: string | null
+        families?: string[]
+        parameterSize?: string | null
+        quantizationLevel?: string | null
+      }>
+    >
+  },
 ): void {
-  mockProviderProfilesModule()
+  mockProviderProfilesModule({ addProviderProfile: options?.addProviderProfile })
+
+  mock.module('../utils/providerDiscovery.js', () => ({
+    hasLocalOllama: options?.hasLocalOllama ?? (async () => false),
+    listOllamaModels: options?.listOllamaModels ?? (async () => []),
+  }))
 
   mock.module('../utils/githubModelsCredentials.js', () => ({
     clearGithubModelsToken: () => ({ success: true }),
@@ -162,9 +193,14 @@ async function waitForFrameOutput(
 async function mountProviderManager(
   ProviderManager: React.ComponentType<{
     mode: 'first-run' | 'manage'
-    onDone: () => void
+    onDone: (result?: unknown) => void
   }>,
+  options?: {
+    mode?: 'first-run' | 'manage'
+    onDone?: (result?: unknown) => void
+  },
 ): Promise<{
+  stdin: PassThrough
   getOutput: () => string
   dispose: () => Promise<void>
 }> {
@@ -177,14 +213,17 @@ async function mountProviderManager(
 
   root.render(
     <AppStateProvider>
-      <ProviderManager
-        mode="manage"
-        onDone={() => {}}
-      />
+      <KeybindingSetup>
+        <ProviderManager
+          mode={options?.mode ?? 'manage'}
+          onDone={options?.onDone ?? (() => {})}
+        />
+      </KeybindingSetup>
     </AppStateProvider>,
   )
 
   return {
+    stdin,
     getOutput,
     dispose: async () => {
       root.unmount()
@@ -198,14 +237,17 @@ async function mountProviderManager(
 async function renderProviderManagerFrame(
   ProviderManager: React.ComponentType<{
     mode: 'first-run' | 'manage'
-    onDone: () => void
+    onDone: (result?: unknown) => void
   }>,
   options?: {
     waitForOutput?: (output: string) => boolean
     timeoutMs?: number
+    mode?: 'first-run' | 'manage'
   },
 ): Promise<string> {
-  const mounted = await mountProviderManager(ProviderManager)
+  const mounted = await mountProviderManager(ProviderManager, {
+    mode: options?.mode,
+  })
   const output = await waitForFrameOutput(
     mounted.getOutput,
     frame => {
@@ -263,6 +305,96 @@ test('ProviderManager resolves GitHub virtual provider from async storage withou
   expect(asyncRead).toHaveBeenCalled()
 })
 
+test('ProviderManager first-run Ollama preset auto-detects installed models', async () => {
+  delete process.env.CLAUDE_CODE_USE_GITHUB
+  delete process.env.GITHUB_TOKEN
+  delete process.env.GH_TOKEN
+
+  const onDone = mock(() => {})
+  const addProviderProfile = mock((payload: {
+    provider: string
+    name: string
+    baseUrl: string
+    model: string
+    apiKey?: string
+  }) => ({
+    id: 'provider_ollama',
+    provider: payload.provider,
+    name: payload.name,
+    baseUrl: payload.baseUrl,
+    model: payload.model,
+    apiKey: payload.apiKey,
+  }))
+
+  mockProviderManagerDependencies(
+    () => undefined,
+    async () => undefined,
+    {
+      addProviderProfile,
+      hasLocalOllama: async () => true,
+      listOllamaModels: async () => [
+        {
+          name: 'gemma4:31b-cloud',
+          family: 'gemma',
+          parameterSize: '31b',
+        },
+        {
+          name: 'kimi-k2.5:cloud',
+          family: 'kimi',
+          parameterSize: '2.5b',
+        },
+      ],
+    },
+  )
+
+  const nonce = `${Date.now()}-${Math.random()}`
+  const { ProviderManager } = await import(`./ProviderManager.js?ts=${nonce}`)
+  const mounted = await mountProviderManager(ProviderManager, {
+    mode: 'first-run',
+    onDone,
+  })
+
+  await waitForFrameOutput(
+    mounted.getOutput,
+    frame => frame.includes('Set up provider') && frame.includes('Ollama'),
+  )
+
+  mounted.stdin.write('j')
+  await Bun.sleep(50)
+  mounted.stdin.write('\r')
+
+  const modelFrame = await waitForFrameOutput(
+    mounted.getOutput,
+    frame =>
+      frame.includes('Choose an Ollama model') &&
+      frame.includes('gemma4:31b-cloud') &&
+      frame.includes('kimi-k2.5:cloud'),
+  )
+
+  expect(modelFrame).toContain('Choose an Ollama model')
+  expect(modelFrame).toContain('gemma4:31b-cloud')
+
+  await Bun.sleep(25)
+  mounted.stdin.write('\r')
+
+  await waitForCondition(() => onDone.mock.calls.length > 0)
+
+  expect(addProviderProfile).toHaveBeenCalled()
+  expect(addProviderProfile.mock.calls[0]?.[0]).toMatchObject({
+    name: 'Ollama',
+    baseUrl: 'http://localhost:11434/v1',
+    model: 'gemma4:31b-cloud',
+  })
+  expect(onDone).toHaveBeenCalledWith(
+    expect.objectContaining({
+      action: 'saved',
+      message: 'Provider configured: Ollama',
+    }),
+  )
+
+  await mounted.dispose()
+})
+
 test('ProviderManager avoids first-frame false negative while stored-token lookup is pending', async () => {
   delete process.env.CLAUDE_CODE_USE_GITHUB
   delete process.env.GITHUB_TOKEN

src/components/ProviderManager.tsx

@@ -3,6 +3,7 @@ import * as React from 'react'
 import { Box, Text } from '../ink.js'
 import { useKeybinding } from '../keybindings/useKeybinding.js'
 import type { ProviderProfile } from '../utils/config.js'
+import { hasLocalOllama, listOllamaModels } from '../utils/providerDiscovery.js'
 import {
   addProviderProfile,
   applyActiveProviderProfileFromConfig,
@@ -15,6 +16,10 @@ import {
   type ProviderProfileInput,
   updateProviderProfile,
 } from '../utils/providerProfiles.js'
+import {
+  rankOllamaModels,
+  recommendOllamaModel,
+} from '../utils/providerRecommendation.js'
 import {
   clearGithubModelsToken,
   GITHUB_MODELS_HYDRATED_ENV_MARKER,
@@ -24,7 +29,7 @@ import {
 } from '../utils/githubModelsCredentials.js'
 import { isEnvTruthy } from '../utils/envUtils.js'
 import { updateSettingsForSource } from '../utils/settings/settings.js'
-import { Select } from './CustomSelect/index.js'
+import { type OptionWithDescription, Select } from './CustomSelect/index.js'
 import { Pane } from './design-system/Pane.js'
 import TextInput from './TextInput.js'
 
@@ -42,6 +47,7 @@ type Props = {
 type Screen =
   | 'menu'
   | 'select-preset'
+  | 'select-ollama-model'
   | 'form'
   | 'select-active'
   | 'select-edit'
@@ -51,6 +57,16 @@ type DraftField = 'name' | 'baseUrl' | 'model' | 'apiKey'
 
 type ProviderDraft = Record<DraftField, string>
 
+type OllamaSelectionState =
+  | { state: 'idle' }
+  | { state: 'loading' }
+  | {
+      state: 'ready'
+      options: OptionWithDescription<string>[]
+      defaultValue?: string
+    }
+  | { state: 'unavailable'; message: string }
+
 const FORM_STEPS: Array<{
   key: DraftField
   label: string
@@ -210,6 +226,9 @@ export function ProviderManager({ mode, onDone }: Props): React.ReactNode {
   const [cursorOffset, setCursorOffset] = React.useState(0)
   const [statusMessage, setStatusMessage] = React.useState<string | undefined>()
   const [errorMessage, setErrorMessage] = React.useState<string | undefined>()
+  const [ollamaSelection, setOllamaSelection] = React.useState<OllamaSelectionState>({
+    state: 'idle',
+  })
 
   const currentStep = FORM_STEPS[formStepIndex] ?? FORM_STEPS[0]
   const currentStepKey = currentStep.key
@@ -364,6 +383,59 @@ export function ProviderManager({ mode, onDone }: Props): React.ReactNode {
     return null
   }
 
+  React.useEffect(() => {
+    if (screen !== 'select-ollama-model') {
+      return
+    }
+
+    let cancelled = false
+    setOllamaSelection({ state: 'loading' })
+
+    void (async () => {
+      const available = await hasLocalOllama(draft.baseUrl)
+      if (!available) {
+        if (!cancelled) {
+          setOllamaSelection({
+            state: 'unavailable',
+            message:
+              'Could not reach Ollama. Start Ollama first, or enter the endpoint manually.',
+          })
+        }
+        return
+      }
+
+      const models = await listOllamaModels(draft.baseUrl)
+      if (models.length === 0) {
+        if (!cancelled) {
+          setOllamaSelection({
+            state: 'unavailable',
+            message:
+              'Ollama is running, but no installed models were found. Pull a chat model such as qwen2.5-coder:7b or llama3.1:8b first, or enter details manually.',
+          })
+        }
+        return
+      }
+
+      const ranked = rankOllamaModels(models, 'balanced')
+      const recommended = recommendOllamaModel(models, 'balanced')
+      if (!cancelled) {
+        setOllamaSelection({
+          state: 'ready',
+          defaultValue: recommended?.name ?? ranked[0]?.name,
+          options: ranked.map(model => ({
+            label: model.name,
+            value: model.name,
+            description: model.summary,
+          })),
+        })
+      }
+    })()
+
+    return () => {
+      cancelled = true
+    }
+  }, [draft.baseUrl, screen])
+
   function startCreateFromPreset(preset: ProviderPreset): void {
     const defaults = getProviderPresetDefaults(preset)
     const nextDraft = {
@@ -378,6 +450,13 @@ export function ProviderManager({ mode, onDone }: Props): React.ReactNode {
     setFormStepIndex(0)
     setCursorOffset(nextDraft.name.length)
     setErrorMessage(undefined)
+
+    if (preset === 'ollama') {
+      setOllamaSelection({ state: 'loading' })
+      setScreen('select-ollama-model')
+      return
+    }
+
     setScreen('form')
   }
 
@@ -397,13 +476,13 @@ export function ProviderManager({ mode, onDone }: Props): React.ReactNode {
     setScreen('form')
   }
 
-  function persistDraft(): void {
+  function persistDraft(nextDraft: ProviderDraft = draft): void {
     const payload: ProviderProfileInput = {
       provider: draftProvider,
-      name: draft.name,
-      baseUrl: draft.baseUrl,
-      model: draft.model,
-      apiKey: draft.apiKey,
+      name: nextDraft.name,
+      baseUrl: nextDraft.baseUrl,
+      model: nextDraft.model,
+      apiKey: nextDraft.apiKey,
     }
 
     const saved = editingProfileId
@@ -446,6 +525,83 @@ export function ProviderManager({ mode, onDone }: Props): React.ReactNode {
     setScreen('menu')
   }
 
+  function renderOllamaSelection(): React.ReactNode {
+    if (ollamaSelection.state === 'loading' || ollamaSelection.state === 'idle') {
+      return (
+        <Box flexDirection="column" gap={1}>
+          <Text color="remember" bold>
+            Checking Ollama
+          </Text>
+          <Text dimColor>Looking for installed Ollama models...</Text>
+        </Box>
+      )
+    }
+
+    if (ollamaSelection.state === 'unavailable') {
+      return (
+        <Box flexDirection="column" gap={1}>
+          <Text color="remember" bold>
+            Ollama setup
+          </Text>
+          <Text dimColor>{ollamaSelection.message}</Text>
+          <Select
+            options={[
+              {
+                value: 'manual',
+                label: 'Enter manually',
+                description: 'Fill in the base URL and model yourself',
+              },
+              {
+                value: 'back',
+                label: 'Back',
+                description: 'Choose another provider preset',
+              },
+            ]}
+            onChange={value => {
+              if (value === 'manual') {
+                setFormStepIndex(0)
+                setCursorOffset(draft.name.length)
+                setScreen('form')
+                return
+              }
+              setScreen('select-preset')
+            }}
+            onCancel={() => setScreen('select-preset')}
+            visibleOptionCount={2}
+          />
+        </Box>
+      )
+    }
+
+    return (
+      <Box flexDirection="column" gap={1}>
+        <Text color="remember" bold>
+          Choose an Ollama model
+        </Text>
+        <Text dimColor>
+          Pick one of the installed Ollama models to save into a local provider
+          profile.
+        </Text>
+        <Select
+          options={ollamaSelection.options}
+          defaultValue={ollamaSelection.defaultValue}
+          defaultFocusValue={ollamaSelection.defaultValue}
+          inlineDescriptions
+          visibleOptionCount={Math.min(8, ollamaSelection.options.length)}
+          onChange={value => {
+            const nextDraft = {
+              ...draft,
+              model: value,
+            }
+            setDraft(nextDraft)
+            persistDraft(nextDraft)
+          }}
+          onCancel={() => setScreen('select-preset')}
+        />
+      </Box>
+    )
+  }
+
   function handleFormSubmit(value: string): void {
     const trimmed = value.trim()
 
@@ -470,7 +626,7 @@ export function ProviderManager({ mode, onDone }: Props): React.ReactNode {
       return
     }
 
-    persistDraft()
+    persistDraft(nextDraft)
   }
 
   function handleBackFromForm(): void {
@@ -819,13 +975,16 @@ export function ProviderManager({ mode, onDone }: Props): React.ReactNode {
 
   let content: React.ReactNode
 
-  switch (screen) {
-    case 'select-preset':
-      content = renderPresetSelection()
-      break
-    case 'form':
-      content = renderForm()
-      break
+    switch (screen) {
+      case 'select-preset':
+        content = renderPresetSelection()
+        break
+      case 'select-ollama-model':
+        content = renderOllamaSelection()
+        break
+      case 'form':
+        content = renderForm()
+        break
     case 'select-active':
       content = renderProfileSelection(
         'Set active provider',

src/components/StartupScreen.ts

@@ -7,6 +7,8 @@
 
 import { isLocalProviderUrl } from '../services/api/providerConfig.js'
 import { getLocalOpenAICompatibleProviderLabel } from '../utils/providerDiscovery.js'
+import { getSettings_DEPRECATED } from '../utils/settings/settings.js'
+import { parseUserSpecifiedModel } from '../utils/model/model.js'
 
 declare const MACRO: { VERSION: string; DISPLAY_VERSION?: string }
 
@@ -85,6 +87,7 @@ function detectProvider(): { name: string; model: string; baseUrl: string; isLoc
   const useGemini = process.env.CLAUDE_CODE_USE_GEMINI === '1' || process.env.CLAUDE_CODE_USE_GEMINI === 'true'
   const useGithub = process.env.CLAUDE_CODE_USE_GITHUB === '1' || process.env.CLAUDE_CODE_USE_GITHUB === 'true'
   const useOpenAI = process.env.CLAUDE_CODE_USE_OPENAI === '1' || process.env.CLAUDE_CODE_USE_OPENAI === 'true'
+  const useMistral = process.env.CLAUDE_CODE_USE_MISTRAL === '1' || process.env.CLAUDE_CODE_USE_MISTRAL === 'true'
 
   if (useGemini) {
     const model = process.env.GEMINI_MODEL || 'gemini-2.0-flash'
@@ -92,11 +95,17 @@ function detectProvider(): { name: string; model: string; baseUrl: string; isLoc
     return { name: 'Google Gemini', model, baseUrl, isLocal: false }
   }
 
+  if (useMistral) {
+    const model = process.env.MISTRAL_MODEL || 'devstral-latest'
+    const baseUrl = process.env.MISTRAL_BASE_URL || 'https://api.mistral.ai/v1'
+    return { name: 'Mistral', model, baseUrl, isLocal: false }
+  }
+
   if (useGithub) {
     const model = process.env.OPENAI_MODEL || 'github:copilot'
     const baseUrl =
-      process.env.OPENAI_BASE_URL || 'https://models.github.ai/inference'
-    return { name: 'GitHub Models', model, baseUrl, isLocal: false }
+      process.env.OPENAI_BASE_URL || 'https://api.githubcopilot.com'
+    return { name: 'GitHub Copilot', model, baseUrl, isLocal: false }
   }
 
   if (useOpenAI) {
@@ -139,9 +148,11 @@ function detectProvider(): { name: string; model: string; baseUrl: string; isLoc
     return { name, model: displayModel, baseUrl, isLocal }
   }
 
-  // Default: Anthropic
-  const model = process.env.ANTHROPIC_MODEL || process.env.CLAUDE_MODEL || 'claude-sonnet-4-6'
-  return { name: 'Anthropic', model, baseUrl: 'https://api.anthropic.com', isLocal: false }
+  // Default: Anthropic - check settings.model first, then env vars
+  const settings = getSettings_DEPRECATED() || {}
+  const modelSetting = settings.model || process.env.ANTHROPIC_MODEL || process.env.CLAUDE_MODEL || 'claude-sonnet-4-6'
+  const resolvedModel = parseUserSpecifiedModel(modelSetting)
+  return { name: 'Anthropic', model: resolvedModel, baseUrl: 'https://api.anthropic.com', isLocal: false }
 }
 
 // ─── Box drawing ──────────────────────────────────────────────────────────────

src/components/TextInput.test.tsx

@@ -0,0 +1,231 @@
+import { PassThrough } from 'node:stream'
+
+import { expect, test } from 'bun:test'
+import React from 'react'
+import stripAnsi from 'strip-ansi'
+
+import { createRoot } from '../ink.js'
+import { AppStateProvider } from '../state/AppState.js'
+import TextInput from './TextInput.js'
+import VimTextInput from './VimTextInput.js'
+
+const SYNC_START = '\x1B[?2026h'
+const SYNC_END = '\x1B[?2026l'
+
+function extractLastFrame(output: string): string {
+  let lastFrame: string | null = null
+  let cursor = 0
+
+  while (cursor < output.length) {
+    const start = output.indexOf(SYNC_START, cursor)
+    if (start === -1) {
+      break
+    }
+
+    const contentStart = start + SYNC_START.length
+    const end = output.indexOf(SYNC_END, contentStart)
+    if (end === -1) {
+      break
+    }
+
+    const frame = output.slice(contentStart, end)
+    if (frame.trim().length > 0) {
+      lastFrame = frame
+    }
+    cursor = end + SYNC_END.length
+  }
+
+  return lastFrame ?? output
+}
+
+function createTestStreams(): {
+  stdout: PassThrough
+  stdin: PassThrough & {
+    isTTY: boolean
+    setRawMode: (mode: boolean) => void
+    ref: () => void
+    unref: () => void
+  }
+  getOutput: () => string
+} {
+  let output = ''
+  const stdout = new PassThrough()
+  const stdin = new PassThrough() as PassThrough & {
+    isTTY: boolean
+    setRawMode: (mode: boolean) => void
+    ref: () => void
+    unref: () => void
+  }
+
+  stdin.isTTY = true
+  stdin.setRawMode = () => {}
+  stdin.ref = () => {}
+  stdin.unref = () => {}
+  ;(stdout as unknown as { columns: number }).columns = 120
+  stdout.on('data', chunk => {
+    output += chunk.toString()
+  })
+
+  return {
+    stdout,
+    stdin,
+    getOutput: () => output,
+  }
+}
+
+function DelayedControlledTextInput(): React.ReactNode {
+  const [value, setValue] = React.useState('')
+  const [cursorOffset, setCursorOffset] = React.useState(0)
+  const valueTimerRef = React.useRef<ReturnType<typeof setTimeout> | null>(null)
+  const offsetTimerRef = React.useRef<ReturnType<typeof setTimeout> | null>(null)
+
+  React.useEffect(() => {
+    return () => {
+      if (valueTimerRef.current) {
+        clearTimeout(valueTimerRef.current)
+      }
+      if (offsetTimerRef.current) {
+        clearTimeout(offsetTimerRef.current)
+      }
+    }
+  }, [])
+
+  return (
+    <AppStateProvider>
+      <TextInput
+        value={value}
+        onChange={nextValue => {
+          if (valueTimerRef.current) {
+            clearTimeout(valueTimerRef.current)
+          }
+          valueTimerRef.current = setTimeout(() => {
+            setValue(nextValue)
+          }, 200)
+        }}
+        onSubmit={() => {}}
+        placeholder="Type here..."
+        columns={60}
+        cursorOffset={cursorOffset}
+        onChangeCursorOffset={nextOffset => {
+          if (offsetTimerRef.current) {
+            clearTimeout(offsetTimerRef.current)
+          }
+          offsetTimerRef.current = setTimeout(() => {
+            setCursorOffset(nextOffset)
+          }, 200)
+        }}
+        focus
+        showCursor
+        multiline
+      />
+    </AppStateProvider>
+  )
+}
+
+function DelayedControlledVimTextInput(): React.ReactNode {
+  const [value, setValue] = React.useState('')
+  const [cursorOffset, setCursorOffset] = React.useState(0)
+  const valueTimerRef = React.useRef<ReturnType<typeof setTimeout> | null>(null)
+  const offsetTimerRef = React.useRef<ReturnType<typeof setTimeout> | null>(null)
+
+  React.useEffect(() => {
+    return () => {
+      if (valueTimerRef.current) {
+        clearTimeout(valueTimerRef.current)
+      }
+      if (offsetTimerRef.current) {
+        clearTimeout(offsetTimerRef.current)
+      }
+    }
+  }, [])
+
+  return (
+    <AppStateProvider>
+      <VimTextInput
+        value={value}
+        onChange={nextValue => {
+          if (valueTimerRef.current) {
+            clearTimeout(valueTimerRef.current)
+          }
+          valueTimerRef.current = setTimeout(() => {
+            setValue(nextValue)
+          }, 200)
+        }}
+        onSubmit={() => {}}
+        placeholder="Type here..."
+        columns={60}
+        cursorOffset={cursorOffset}
+        onChangeCursorOffset={nextOffset => {
+          if (offsetTimerRef.current) {
+            clearTimeout(offsetTimerRef.current)
+          }
+          offsetTimerRef.current = setTimeout(() => {
+            setCursorOffset(nextOffset)
+          }, 200)
+        }}
+        initialMode="INSERT"
+        focus
+        showCursor
+        multiline
+      />
+    </AppStateProvider>
+  )
+}
+
+test('TextInput renders typed characters before delayed parent value commits', async () => {
+  const { stdout, stdin, getOutput } = createTestStreams()
+  const root = await createRoot({
+    stdout: stdout as unknown as NodeJS.WriteStream,
+    stdin: stdin as unknown as NodeJS.ReadStream,
+    patchConsole: false,
+  })
+
+  root.render(<DelayedControlledTextInput />)
+
+  await Bun.sleep(50)
+  stdin.write('a')
+  await Bun.sleep(25)
+  stdin.write('b')
+  await Bun.sleep(25)
+
+  const output = stripAnsi(extractLastFrame(getOutput()))
+
+  root.unmount()
+  stdin.end()
+  stdout.end()
+  await Bun.sleep(25)
+
+  expect(output).toContain('ab')
+  expect(output).not.toContain('Type here...')
+})
+
+test('VimTextInput preserves rapid typed characters before delayed parent value commits', async () => {
+  const { stdout, stdin, getOutput } = createTestStreams()
+  const root = await createRoot({
+    stdout: stdout as unknown as NodeJS.WriteStream,
+    stdin: stdin as unknown as NodeJS.ReadStream,
+    patchConsole: false,
+  })
+
+  root.render(<DelayedControlledVimTextInput />)
+
+  await Bun.sleep(50)
+  stdin.write('a')
+  await Bun.sleep(25)
+  stdin.write('s')
+  await Bun.sleep(25)
+  stdin.write('d')
+  await Bun.sleep(25)
+  stdin.write('f')
+  await Bun.sleep(25)
+
+  const output = stripAnsi(extractLastFrame(getOutput()))
+
+  root.unmount()
+  stdin.end()
+  stdout.end()
+  await Bun.sleep(25)
+
+  expect(output).toContain('asdf')
+  expect(output).not.toContain('Type here...')
+})

src/components/ThemePicker.test.tsx

@@ -1,113 +1,161 @@
-import { describe, expect, it, mock } from 'bun:test'
+import { PassThrough } from 'node:stream'
 
-// We can't fully render ThemePicker due to complex dependencies
-// But we can test the theme options generation logic
-describe('ThemePicker', () => {
-  describe('theme options', () => {
-    it('generates correct theme options without AUTO_THEME feature flag', () => {
-      // Since we can't easily mock bun:bundle, test the options structure
-      // The real test would require integration testing
-      const expectedOptions = [
-        { label: "Dark mode", value: "dark" },
-        { label: "Light mode", value: "light" },
-        { label: "Dark mode (colorblind-friendly)", value: "dark-daltonized" },
-        { label: "Light mode (colorblind-friendly)", value: "light-daltonized" },
-        { label: "Dark mode (ANSI colors only)", value: "dark-ansi" },
-        { label: "Light mode (ANSI colors only)", value: "light-ansi" },
-      ]
-      expect(expectedOptions.length).toBe(6)
-    })
+import { afterEach, expect, mock, test } from 'bun:test'
+import React from 'react'
+import stripAnsi from 'strip-ansi'
 
-    it('includes auto theme when AUTO_THEME feature is enabled', () => {
-      // Test the structure when auto is present
-      const optionsWithAuto = [
-        { label: "Auto (match terminal)", value: "auto" },
-        { label: "Dark mode", value: "dark" },
-      ]
-      expect(optionsWithAuto[0].value).toBe('auto')
-    })
+import { createRoot, Text, useTheme } from '../ink.js'
+import { KeybindingSetup } from '../keybindings/KeybindingProviderSetup.js'
+import { AppStateProvider } from '../state/AppState.js'
+import { ThemeProvider } from './design-system/ThemeProvider.js'
+
+mock.module('./StructuredDiff.js', () => ({
+  StructuredDiff: function StructuredDiffPreview(): React.ReactNode {
+    const [theme] = useTheme()
+    return <Text>{`Preview theme: ${theme}`}</Text>
+  },
+}))
+
+mock.module('./StructuredDiff/colorDiff.js', () => ({
+  getColorModuleUnavailableReason: () => 'env',
+  getSyntaxTheme: () => null,
+}))
+
+const SYNC_START = '\x1B[?2026h'
+const SYNC_END = '\x1B[?2026l'
+
+function extractLastFrame(output: string): string {
+  let lastFrame: string | null = null
+  let cursor = 0
+
+  while (cursor < output.length) {
+    const start = output.indexOf(SYNC_START, cursor)
+    if (start === -1) {
+      break
+    }
+
+    const contentStart = start + SYNC_START.length
+    const end = output.indexOf(SYNC_END, contentStart)
+    if (end === -1) {
+      break
+    }
+
+    const frame = output.slice(contentStart, end)
+    if (frame.trim().length > 0) {
+      lastFrame = frame
+    }
+    cursor = end + SYNC_END.length
+  }
+
+  return lastFrame ?? output
+}
+
+function createTestStreams(): {
+  stdout: PassThrough
+  stdin: PassThrough & {
+    isTTY: boolean
+    setRawMode: (mode: boolean) => void
+    ref: () => void
+    unref: () => void
+  }
+  getOutput: () => string
+} {
+  let output = ''
+  const stdout = new PassThrough()
+  const stdin = new PassThrough() as PassThrough & {
+    isTTY: boolean
+    setRawMode: (mode: boolean) => void
+    ref: () => void
+    unref: () => void
+  }
+
+  stdin.isTTY = true
+  stdin.setRawMode = () => {}
+  stdin.ref = () => {}
+  stdin.unref = () => {}
+  ;(stdout as unknown as { columns: number }).columns = 120
+  stdout.on('data', chunk => {
+    output += chunk.toString()
   })
 
-  describe('handleRowFocus callback', () => {
-    it('setPreviewTheme is called with theme setting', () => {
-      const setPreviewTheme = mock()
-      const handleRowFocus = (setting: string) => setPreviewTheme(setting)
-      
-      handleRowFocus('dark')
-      expect(setPreviewTheme).toHaveBeenCalledWith('dark')
-    })
+  return {
+    stdout,
+    stdin,
+    getOutput: () => output,
+  }
+}
+
+async function waitForCondition(
+  predicate: () => boolean,
+  timeoutMs = 2000,
+): Promise<void> {
+  const startedAt = Date.now()
+
+  while (Date.now() - startedAt < timeoutMs) {
+    if (predicate()) {
+      return
+    }
+    await Bun.sleep(10)
+  }
+
+  throw new Error('Timed out waiting for ThemePicker test condition')
+}
+
+async function waitForFrame(
+  getOutput: () => string,
+  predicate: (frame: string) => boolean,
+): Promise<string> {
+  let frame = ''
+
+  await waitForCondition(() => {
+    frame = stripAnsi(extractLastFrame(getOutput()))
+    return predicate(frame)
   })
 
-  describe('handleSelect callback', () => {
-    it('calls savePreview and onThemeSelect', () => {
-      const savePreview = mock()
-      const onThemeSelect = mock()
-      const handleSelect = (setting: string) => {
-        savePreview()
-        onThemeSelect(setting)
-      }
-      
-      handleSelect('light')
-      expect(savePreview).toHaveBeenCalled()
-      expect(onThemeSelect).toHaveBeenCalledWith('light')
-    })
-  })
+  return frame
+}
 
-  describe('handleCancel callback', () => {
-    it('calls cancelPreview and gracefulShutdown when not skipExitHandling', () => {
-      const cancelPreview = mock()
-      const gracefulShutdown = mock()
-      const handleCancel = (skipExitHandling: boolean, onCancelProp?: () => void) => {
-        cancelPreview()
-        if (skipExitHandling) {
-          onCancelProp?.()
-        } else {
-          gracefulShutdown(0)
-        }
-      }
-      
-      handleCancel(false)
-      expect(cancelPreview).toHaveBeenCalled()
-      expect(gracefulShutdown).toHaveBeenCalledWith(0)
-    })
-
-    it('calls onCancelProp when skipExitHandling is true', () => {
-      const cancelPreview = mock()
-      const onCancelProp = mock()
-      const handleCancel = (skipExitHandling: boolean, onCancelProp?: () => void) => {
-        cancelPreview()
-        if (skipExitHandling) {
-          onCancelProp?.()
-        }
-      }
-      
-      handleCancel(true, onCancelProp)
-      expect(cancelPreview).toHaveBeenCalled()
-      expect(onCancelProp).toHaveBeenCalled()
-    })
-  })
-
-  describe('syntax hint logic', () => {
-    it('shows disabled hint when syntax highlighting is disabled', () => {
-      const syntaxHighlightingDisabled = true
-      const syntaxToggleShortcut = 'Ctrl+T'
-      
-      const hint = syntaxHighlightingDisabled
-        ? `Syntax highlighting disabled (${syntaxToggleShortcut} to enable)`
-        : `Syntax highlighting enabled (${syntaxToggleShortcut} to disable)`
-      
-      expect(hint).toContain('disabled')
-    })
-
-    it('shows enabled hint when syntax highlighting is active', () => {
-      const syntaxHighlightingDisabled = false
-      const syntaxToggleShortcut = 'Ctrl+T'
-      
-      const hint = !syntaxHighlightingDisabled
-        ? `Syntax highlighting enabled (${syntaxToggleShortcut} to disable)`
-        : `Syntax highlighting disabled (${syntaxToggleShortcut} to enable)`
-      
-      expect(hint).toContain('enabled')
-    })
-  })
+afterEach(() => {
+  mock.restore()
+})
+
+test('updates the preview when keyboard focus moves to another theme', async () => {
+  const { ThemePicker } = await import('./ThemePicker.js')
+  const { stdout, stdin, getOutput } = createTestStreams()
+  const root = await createRoot({
+    stdout: stdout as unknown as NodeJS.WriteStream,
+    stdin: stdin as unknown as NodeJS.ReadStream,
+    patchConsole: false,
+  })
+
+  root.render(
+    <AppStateProvider>
+      <KeybindingSetup>
+        <ThemeProvider initialState="dark">
+          <ThemePicker onThemeSelect={() => {}} />
+        </ThemeProvider>
+      </KeybindingSetup>
+    </AppStateProvider>,
+  )
+
+  try {
+    const initialFrame = await waitForFrame(
+      getOutput,
+      frame => frame.includes('Preview theme: dark'),
+    )
+    expect(initialFrame).toContain('Preview theme: dark')
+
+    stdin.write('j')
+
+    const updatedFrame = await waitForFrame(
+      getOutput,
+      frame => frame.includes('Preview theme: light'),
+    )
+    expect(updatedFrame).toContain('Preview theme: light')
+  } finally {
+    root.unmount()
+    stdin.end()
+    stdout.end()
+    await Bun.sleep(0)
+  }
 })

src/components/design-system/ThemeProvider.tsx

@@ -1,4 +1,3 @@
-import { c as _c } from "react-compiler-runtime";
 import { feature } from 'bun:bundle';
 import React, { createContext, useContext, useEffect, useMemo, useState } from 'react';
 import useStdin from '../../ink/hooks/use-stdin.js';
@@ -120,21 +119,8 @@ export function ThemeProvider({
  * accepts any ThemeSetting (including 'auto').
  */
 export function useTheme() {
-  const $ = _c(3);
-  const {
-    currentTheme,
-    setThemeSetting
-  } = useContext(ThemeContext);
-  let t0;
-  if ($[0] !== currentTheme || $[1] !== setThemeSetting) {
-    t0 = [currentTheme, setThemeSetting];
-    $[0] = currentTheme;
-    $[1] = setThemeSetting;
-    $[2] = t0;
-  } else {
-    t0 = $[2];
-  }
-  return t0;
+  const { currentTheme, setThemeSetting } = useContext(ThemeContext);
+  return [currentTheme, setThemeSetting] as const;
 }
 
 /**
@@ -145,25 +131,10 @@ export function useThemeSetting() {
   return useContext(ThemeContext).themeSetting;
 }
 export function usePreviewTheme() {
-  const $ = _c(4);
-  const {
+  const { setPreviewTheme, savePreview, cancelPreview } = useContext(ThemeContext);
+  return {
     setPreviewTheme,
     savePreview,
-    cancelPreview
-  } = useContext(ThemeContext);
-  let t0;
-  if ($[0] !== cancelPreview || $[1] !== savePreview || $[2] !== setPreviewTheme) {
-    t0 = {
-      setPreviewTheme,
-      savePreview,
-      cancelPreview
-    };
-    $[0] = cancelPreview;
-    $[1] = savePreview;
-    $[2] = setPreviewTheme;
-    $[3] = t0;
-  } else {
-    t0 = $[3];
-  }
-  return t0;
+    cancelPreview,
+  };
 }

src/components/permissions/rules/AddPermissionRules.tsx

@@ -32,7 +32,7 @@ export function optionForPermissionSaveDestination(saveDestination: EditableSett
     case 'userSettings':
       return {
         label: 'User settings',
-        description: `Saved in at ~/.claude/settings.json`,
+        description: `Saved in ~/.openclaude/settings.json`,
         value: saveDestination
       };
   }

src/constants/apiLimits.ts

@@ -33,14 +33,14 @@ export const IMAGE_TARGET_RAW_SIZE = (API_IMAGE_MAX_BASE64_SIZE * 3) / 4 // 3.75
  *
  * Note: The API internally resizes images larger than 1568px (source:
  * encoding/full_encoding.py), but this is handled server-side and doesn't
- * cause errors. These client-side limits (2000px) are slightly larger to
+ * cause errors. These client-side limits (1568px) are slightly larger to
  * preserve quality when beneficial.
  *
  * The API_IMAGE_MAX_BASE64_SIZE (5MB) is the actual hard limit that causes
  * API errors if exceeded.
  */
-export const IMAGE_MAX_WIDTH = 2000
-export const IMAGE_MAX_HEIGHT = 2000
+export const IMAGE_MAX_WIDTH = 1568
+export const IMAGE_MAX_HEIGHT = 1568
 
 // =============================================================================
 // PDF LIMITS

src/constants/promptIdentity.test.ts

@@ -2,8 +2,11 @@ import { afterEach, expect, test } from 'bun:test'
 
 import { getSystemPrompt, DEFAULT_AGENT_PROMPT } from './prompts.js'
 import { CLI_SYSPROMPT_PREFIXES, getCLISyspromptPrefix } from './system.js'
+import { CLAUDE_CODE_GUIDE_AGENT } from '../tools/AgentTool/built-in/claudeCodeGuideAgent.js'
 import { GENERAL_PURPOSE_AGENT } from '../tools/AgentTool/built-in/generalPurposeAgent.js'
 import { EXPLORE_AGENT } from '../tools/AgentTool/built-in/exploreAgent.js'
+import { PLAN_AGENT } from '../tools/AgentTool/built-in/planAgent.js'
+import { STATUSLINE_SETUP_AGENT } from '../tools/AgentTool/built-in/statuslineSetup.js'
 
 const originalSimpleEnv = process.env.CLAUDE_CODE_SIMPLE
 
@@ -13,10 +16,12 @@ afterEach(() => {
 
 test('CLI identity prefixes describe OpenClaude instead of Claude Code', () => {
   expect(getCLISyspromptPrefix()).toContain('OpenClaude')
+  expect(getCLISyspromptPrefix()).not.toContain('Claude Code')
   expect(getCLISyspromptPrefix()).not.toContain("Anthropic's official CLI for Claude")
 
   for (const prefix of CLI_SYSPROMPT_PREFIXES) {
     expect(prefix).toContain('OpenClaude')
+    expect(prefix).not.toContain('Claude Code')
     expect(prefix).not.toContain("Anthropic's official CLI for Claude")
   }
 })
@@ -27,22 +32,53 @@ test('simple mode identity describes OpenClaude instead of Claude Code', async (
   const prompt = await getSystemPrompt([], 'gpt-4o')
 
   expect(prompt[0]).toContain('OpenClaude')
+  expect(prompt[0]).not.toContain('Claude Code')
   expect(prompt[0]).not.toContain("Anthropic's official CLI for Claude")
 })
 
 test('built-in agent prompts describe OpenClaude instead of Claude Code', () => {
   expect(DEFAULT_AGENT_PROMPT).toContain('OpenClaude')
+  expect(DEFAULT_AGENT_PROMPT).not.toContain('Claude Code')
   expect(DEFAULT_AGENT_PROMPT).not.toContain("Anthropic's official CLI for Claude")
 
   const generalPrompt = GENERAL_PURPOSE_AGENT.getSystemPrompt({
     toolUseContext: { options: {} as never },
   })
   expect(generalPrompt).toContain('OpenClaude')
+  expect(generalPrompt).not.toContain('Claude Code')
   expect(generalPrompt).not.toContain("Anthropic's official CLI for Claude")
 
   const explorePrompt = EXPLORE_AGENT.getSystemPrompt({
     toolUseContext: { options: {} as never },
   })
   expect(explorePrompt).toContain('OpenClaude')
+  expect(explorePrompt).not.toContain('Claude Code')
   expect(explorePrompt).not.toContain("Anthropic's official CLI for Claude")
+
+  const planPrompt = PLAN_AGENT.getSystemPrompt({
+    toolUseContext: { options: {} as never },
+  })
+  expect(planPrompt).toContain('OpenClaude')
+  expect(planPrompt).not.toContain('Claude Code')
+
+  const statuslinePrompt = STATUSLINE_SETUP_AGENT.getSystemPrompt({
+    toolUseContext: { options: {} as never },
+  })
+  expect(statuslinePrompt).toContain('OpenClaude')
+  expect(statuslinePrompt).not.toContain('Claude Code')
+
+  const guidePrompt = CLAUDE_CODE_GUIDE_AGENT.getSystemPrompt({
+    toolUseContext: {
+      options: {
+        commands: [],
+        agentDefinitions: { activeAgents: [] },
+        mcpClients: [],
+      } as never,
+    },
+  })
+  expect(guidePrompt).toContain('OpenClaude')
+  expect(guidePrompt).toContain('You are the OpenClaude guide agent.')
+  expect(guidePrompt).toContain('**OpenClaude** (the CLI tool)')
+  expect(guidePrompt).not.toContain('You are the Claude guide agent.')
+  expect(guidePrompt).not.toContain('**Claude Code** (the CLI tool)')
 })

src/constants/prompts.ts

@@ -214,7 +214,7 @@ function getSimpleDoingTasksSection(): string {
   ]
 
   const userHelpSubitems = [
-    `/help: Get help with using Claude Code`,
+    `/help: Get help with using OpenClaude`,
     `To give feedback, users should ${MACRO.ISSUES_EXPLAINER}`,
   ]
 
@@ -242,7 +242,7 @@ function getSimpleDoingTasksSection(): string {
       : []),
     ...(process.env.USER_TYPE === 'ant'
       ? [
-          `If the user reports a bug, slowness, or unexpected behavior with Claude Code itself (as opposed to asking you to fix their own code), recommend the appropriate slash command: /issue for model-related problems (odd outputs, wrong tool choices, hallucinations, refusals), or /share to upload the full session transcript for product bugs, crashes, slowness, or general issues. Only recommend these when the user is describing a problem with Claude Code.`,
+          `If the user reports a bug, slowness, or unexpected behavior with OpenClaude itself (as opposed to asking you to fix their own code), recommend the appropriate slash command: /issue for model-related problems (odd outputs, wrong tool choices, hallucinations, refusals), or /share to upload the full session transcript for product bugs, crashes, slowness, or general issues. Only recommend these when the user is describing a problem with OpenClaude.`,
         ]
       : []),
     `If the user asks for help or wants to give feedback inform them of the following:`,
@@ -449,7 +449,7 @@ export async function getSystemPrompt(
 ): Promise<string[]> {
   if (isEnvTruthy(process.env.CLAUDE_CODE_SIMPLE)) {
     return [
-      `You are OpenClaude, an open-source fork of Claude Code.\n\nCWD: ${getCwd()}\nDate: ${getSessionStartDate()}`,
+      `You are OpenClaude, an open-source coding agent and CLI.\n\nCWD: ${getCwd()}\nDate: ${getSessionStartDate()}`,
     ]
   }
 
@@ -696,10 +696,10 @@ export async function computeSimpleEnvInfo(
       : `The most recent Claude model family is Claude 4.5/4.6. Model IDs — Opus 4.6: '${CLAUDE_4_5_OR_4_6_MODEL_IDS.opus}', Sonnet 4.6: '${CLAUDE_4_5_OR_4_6_MODEL_IDS.sonnet}', Haiku 4.5: '${CLAUDE_4_5_OR_4_6_MODEL_IDS.haiku}'. When building AI applications, default to the latest and most capable Claude models.`,
     process.env.USER_TYPE === 'ant' && isUndercover()
       ? null
-      : `Claude Code is available as a CLI in the terminal, desktop app (Mac/Windows), web app (claude.ai/code), and IDE extensions (VS Code, JetBrains).`,
+      : `OpenClaude is available as a CLI in the terminal and can be used across local development environments and IDE workflows.`,
     process.env.USER_TYPE === 'ant' && isUndercover()
       ? null
-      : `Fast mode for Claude Code uses the same ${FRONTIER_MODEL_NAME} model with faster output. It does NOT switch to a different model. It can be toggled with /fast.`,
+      : `Fast mode for OpenClaude uses the same ${FRONTIER_MODEL_NAME} model with faster output. It does NOT switch to a different model. It can be toggled with /fast.`,
   ].filter(item => item !== null)
 
   return [
@@ -755,7 +755,7 @@ export function getUnameSR(): string {
   return `${osType()} ${osRelease()}`
 }
 
-export const DEFAULT_AGENT_PROMPT = `You are an agent for OpenClaude, an open-source fork of Claude Code. Given the user's message, you should use the tools available to complete the task. Complete the task fully—don't gold-plate, but don't leave it half-done. When you complete the task, respond with a concise report covering what was done and any key findings — the caller will relay this to the user, so it only needs the essentials.`
+export const DEFAULT_AGENT_PROMPT = `You are an agent for OpenClaude, an open-source coding agent and CLI. Given the user's message, you should use the tools available to complete the task. Complete the task fully—don't gold-plate, but don't leave it half-done. When you complete the task, respond with a concise report covering what was done and any key findings — the caller will relay this to the user, so it only needs the essentials.`
 
 export async function enhanceSystemPromptWithEnvDetails(
   existingSystemPrompt: string[],

src/constants/system.ts

@@ -8,11 +8,11 @@ import { getAPIProvider } from '../utils/model/providers.js'
 import { getWorkload } from '../utils/workloadContext.js'
 
 const DEFAULT_PREFIX =
-  `You are OpenClaude, an open-source fork of Claude Code.`
+  `You are OpenClaude, an open-source coding agent and CLI.`
 const AGENT_SDK_CLAUDE_CODE_PRESET_PREFIX =
-  `You are OpenClaude, an open-source fork of Claude Code, running within the Claude Agent SDK.`
+  `You are OpenClaude, an open-source coding agent and CLI running within the Claude Agent SDK.`
 const AGENT_SDK_PREFIX =
-  `You are a Claude agent running in OpenClaude, built on the Claude Agent SDK.`
+  `You are OpenClaude, built on the Claude Agent SDK.`
 
 const CLI_SYSPROMPT_PREFIX_VALUES = [
   DEFAULT_PREFIX,

src/cost-tracker.ts

@@ -181,7 +181,7 @@ function formatCost(cost: number, maxDecimalPlaces: number = 4): string {
 function formatModelUsage(): string {
   const modelUsageMap = getModelUsage()
   if (Object.keys(modelUsageMap).length === 0) {
-    return 'Usage:                 0 input, 0 output, 0 cache read, 0 cache write'
+    return 'Usage:                 0 input, 0 output'
   }
 
   // Accumulate usage by short name
@@ -211,15 +211,19 @@ function formatModelUsage(): string {
 
   let result = 'Usage by model:'
   for (const [shortName, usage] of Object.entries(usageByShortName)) {
-    const usageString =
+    let usageString =
       `  ${formatNumber(usage.inputTokens)} input, ` +
-      `${formatNumber(usage.outputTokens)} output, ` +
-      `${formatNumber(usage.cacheReadInputTokens)} cache read, ` +
-      `${formatNumber(usage.cacheCreationInputTokens)} cache write` +
-      (usage.webSearchRequests > 0
-        ? `, ${formatNumber(usage.webSearchRequests)} web search`
-        : '') +
-      ` (${formatCost(usage.costUSD)})`
+      `${formatNumber(usage.outputTokens)} output`
+    if (usage.cacheReadInputTokens > 0) {
+      usageString += `, ${formatNumber(usage.cacheReadInputTokens)} cache read`
+    }
+    if (usage.cacheCreationInputTokens > 0) {
+      usageString += `, ${formatNumber(usage.cacheCreationInputTokens)} cache write`
+    }
+    if (usage.webSearchRequests > 0) {
+      usageString += `, ${formatNumber(usage.webSearchRequests)} web search`
+    }
+    usageString += ` (${formatCost(usage.costUSD)})`
     result += `\n` + `${shortName}:`.padStart(21) + usageString
   }
   return result

src/entrypoints/cli.tsx

@@ -96,15 +96,16 @@ async function main(): Promise<void> {
     }
   }
 
+  // Enable configs first so we can read settings
   {
     const { enableConfigs } = await import('../utils/config.js')
     enableConfigs()
+  }
+
+  // Apply settings.env from user settings (includes GitHub provider settings from /onboard-github)
+  {
     const { applySafeConfigEnvironmentVariables } = await import('../utils/managedEnv.js')
     applySafeConfigEnvironmentVariables()
-    const { hydrateGeminiAccessTokenFromSecureStorage } = await import('../utils/geminiCredentials.js')
-    hydrateGeminiAccessTokenFromSecureStorage()
-    const { hydrateGithubModelsTokenFromSecureStorage } = await import('../utils/githubModelsCredentials.js')
-    hydrateGithubModelsTokenFromSecureStorage()
   }
 
   const startupEnv = await buildStartupEnvFromProfile({
@@ -121,6 +122,16 @@ async function main(): Promise<void> {
     }
   }
 
+  // Hydrate GitHub credentials after profile is applied so CLAUDE_CODE_USE_GITHUB from profile is available
+  {
+    const {
+      hydrateGithubModelsTokenFromSecureStorage,
+      refreshGithubModelsTokenIfNeeded,
+    } = await import('../utils/githubModelsCredentials.js')
+    await refreshGithubModelsTokenIfNeeded()
+    hydrateGithubModelsTokenFromSecureStorage()
+  }
+
   await validateProviderEnvOrExit()
 
   // Print the gradient startup screen before the Ink UI loads

src/hooks/useManagePlugins.ts

@@ -1,4 +1,4 @@
-import { useCallback, useEffect } from 'react'
+import { useCallback, useEffect, useSyncExternalStore } from 'react'
 import type { Command } from '../commands.js'
 import { useNotifications } from '../context/notifications.js'
 import {
@@ -7,6 +7,11 @@ import {
 } from '../services/analytics/index.js'
 import { reinitializeLspServerManager } from '../services/lsp/manager.js'
 import { useAppState, useSetAppState } from '../state/AppState.js'
+import {
+  getPluginCommandsState,
+  setPluginCommandsState,
+  subscribePluginCommands,
+} from '../state/pluginCommandsStore.js'
 import type { AgentDefinition } from '../tools/AgentTool/loadAgentsDir.js'
 import { count } from '../utils/array.js'
 import { logForDebugging } from '../utils/debug.js'
@@ -39,6 +44,11 @@ export function useManagePlugins({
 }: {
   enabled?: boolean
 } = {}) {
+  const pluginCommands = useSyncExternalStore(
+    subscribePluginCommands,
+    getPluginCommandsState,
+    getPluginCommandsState,
+  )
   const setAppState = useSetAppState()
   const needsRefresh = useAppState(s => s.plugins.needsRefresh)
   const { addNotification } = useNotifications()
@@ -74,6 +84,7 @@ export function useManagePlugins({
 
       try {
         commands = await getPluginCommands()
+        setPluginCommandsState(commands)
       } catch (error) {
         const errorMessage =
           error instanceof Error ? error.message : String(error)
@@ -82,6 +93,7 @@ export function useManagePlugins({
           source: 'plugin-commands',
           error: `Failed to load plugin commands: ${errorMessage}`,
         })
+        setPluginCommandsState([])
       }
 
       try {
@@ -173,7 +185,7 @@ export function useManagePlugins({
             ...prevState.plugins,
             enabled,
             disabled,
-            commands,
+            commands: [],
             errors: mergedErrors,
           },
         }
@@ -226,6 +238,7 @@ export function useManagePlugins({
       logError(errorObj)
       logForDebugging(`Error loading plugins: ${error}`)
       // Set empty state on error, but preserve LSP errors and add the new error
+      setPluginCommandsState([])
       setAppState(prevState => {
         // Keep existing LSP/non-plugin-loading errors
         const existingLspErrors = prevState.plugins.errors.filter(
@@ -284,6 +297,11 @@ export function useManagePlugins({
     })
   }, [initialPluginLoad, enabled])
 
+  useEffect(() => {
+    if (enabled) return
+    setPluginCommandsState([])
+  }, [enabled])
+
   // Plugin state changed on disk (background reconcile, /plugin menu,
   // external settings edit). Show a notification; user runs /reload-plugins
   // to apply. The previous auto-refresh here had a stale-cache bug (only
@@ -301,4 +319,6 @@ export function useManagePlugins({
     // Do NOT auto-refresh. Do NOT reset needsRefresh — /reload-plugins
     // consumes it via refreshActivePlugins().
   }, [enabled, needsRefresh, addNotification])
+
+  return enabled ? pluginCommands : []
 }

src/hooks/useTextInput.ts

@@ -1,3 +1,4 @@
+import { useLayoutEffect, useRef, useState } from 'react'
 import { isInputModeCharacter } from 'src/components/PromptInput/inputModes.js'
 import { useNotifications } from 'src/context/notifications.js'
 import stripAnsi from 'strip-ansi'
@@ -100,9 +101,74 @@ export function useTextInput({
     prewarmModifiers()
   }
 
-  const offset = externalOffset
-  const setOffset = onOffsetChange
-  const cursor = Cursor.fromText(originalValue, columns, offset)
+  // Keep a local text/cursor mirror so consecutive keystrokes can advance
+  // immediately even if the controlled parent value hasn't committed yet.
+  const [renderState, setRenderState] = useState(() => ({
+    value: originalValue,
+    offset: externalOffset,
+  }))
+  const liveValueRef = useRef(originalValue)
+  const liveOffsetRef = useRef(externalOffset)
+  const lastSeenPropsRef = useRef({
+    value: originalValue,
+    offset: externalOffset,
+  })
+  const updateRenderedInput = (nextValue: string, nextOffset: number): void => {
+    liveValueRef.current = nextValue
+    liveOffsetRef.current = nextOffset
+    setRenderState(prev =>
+      prev.value === nextValue && prev.offset === nextOffset
+        ? prev
+        : { value: nextValue, offset: nextOffset },
+    )
+  }
+  useLayoutEffect(() => {
+    if (
+      lastSeenPropsRef.current.value === originalValue &&
+      lastSeenPropsRef.current.offset === externalOffset
+    ) {
+      return
+    }
+
+    lastSeenPropsRef.current = {
+      value: originalValue,
+      offset: externalOffset,
+    }
+    updateRenderedInput(originalValue, externalOffset)
+  }, [originalValue, externalOffset])
+
+  const value = renderState.value
+  const offset = renderState.offset
+  const getLiveValue = (): string => liveValueRef.current
+  const getLiveCursor = (): Cursor =>
+    Cursor.fromText(liveValueRef.current, columns, liveOffsetRef.current)
+  const setValue = (nextValue: string, nextOffset = liveOffsetRef.current): void => {
+    const previousValue = liveValueRef.current
+    const previousOffset = liveOffsetRef.current
+
+    if (previousValue === nextValue && previousOffset === nextOffset) {
+      return
+    }
+
+    updateRenderedInput(nextValue, nextOffset)
+
+    if (previousValue !== nextValue) {
+      onChange(nextValue)
+    }
+
+    if (previousOffset !== nextOffset) {
+      onOffsetChange(nextOffset)
+    }
+  }
+  const setOffset = (nextOffset: number): void => {
+    if (nextOffset === liveOffsetRef.current) {
+      return
+    }
+
+    updateRenderedInput(liveValueRef.current, nextOffset)
+    onOffsetChange(nextOffset)
+  }
+  const cursor = Cursor.fromText(value, columns, offset)
   const { addNotification, removeNotification } = useNotifications()
 
   const handleCtrlC = useDoublePress(
@@ -111,9 +177,11 @@ export function useTextInput({
     },
     () => onExit?.(),
     () => {
-      if (originalValue) {
+      const currentValue = getLiveValue()
+      if (currentValue) {
+        updateRenderedInput('', 0)
         onChange('')
-        setOffset(0)
+        onOffsetChange(0)
         onHistoryReset?.()
       }
     },
@@ -125,7 +193,8 @@ export function useTextInput({
   // not dialog dismissal, and needs the double-press safety mechanism.
   const handleEscape = useDoublePress(
     (show: boolean) => {
-      if (!originalValue || !show) {
+      const currentValue = getLiveValue()
+      if (!currentValue || !show) {
         return
       }
       addNotification({
@@ -136,17 +205,19 @@ export function useTextInput({
       })
     },
     () => {
+      const currentValue = getLiveValue()
       // Remove the "Esc again to clear" notification immediately
       removeNotification('escape-again-to-clear')
       onClearInput?.()
-      if (originalValue) {
+      if (currentValue) {
         // Track double-escape usage for feature discovery
         // Save to history before clearing
-        if (originalValue.trim() !== '') {
-          addToHistory(originalValue)
+        if (currentValue.trim() !== '') {
+          addToHistory(currentValue)
         }
+        updateRenderedInput('', 0)
         onChange('')
-        setOffset(0)
+        onOffsetChange(0)
         onHistoryReset?.()
       }
     },
@@ -154,13 +225,13 @@ export function useTextInput({
 
   const handleEmptyCtrlD = useDoublePress(
     show => {
-      if (originalValue !== '') {
+      if (getLiveValue() !== '') {
         return
       }
       onExitMessage?.(show, 'Ctrl-D')
     },
     () => {
-      if (originalValue !== '') {
+      if (getLiveValue() !== '') {
         return
       }
       onExit?.()
@@ -168,6 +239,7 @@ export function useTextInput({
   )
 
   function handleCtrlD(): MaybeCursor {
+    const cursor = getLiveCursor()
     if (cursor.text === '') {
       // When input is empty, handle double-press
       handleEmptyCtrlD()
@@ -178,24 +250,28 @@ export function useTextInput({
   }
 
   function killToLineEnd(): Cursor {
+    const cursor = getLiveCursor()
     const { cursor: newCursor, killed } = cursor.deleteToLineEnd()
     pushToKillRing(killed, 'append')
     return newCursor
   }
 
   function killToLineStart(): Cursor {
+    const cursor = getLiveCursor()
     const { cursor: newCursor, killed } = cursor.deleteToLineStart()
     pushToKillRing(killed, 'prepend')
     return newCursor
   }
 
   function killWordBefore(): Cursor {
+    const cursor = getLiveCursor()
     const { cursor: newCursor, killed } = cursor.deleteWordBefore()
     pushToKillRing(killed, 'prepend')
     return newCursor
   }
 
   function yank(): Cursor {
+    const cursor = getLiveCursor()
     const text = getLastKill()
     if (text.length > 0) {
       const startOffset = cursor.offset
@@ -207,6 +283,7 @@ export function useTextInput({
   }
 
   function handleYankPop(): Cursor {
+    const cursor = getLiveCursor()
     const popResult = yankPop()
     if (!popResult) {
       return cursor
@@ -222,13 +299,16 @@ export function useTextInput({
   }
 
   const handleCtrl = mapInput([
-    ['a', () => cursor.startOfLine()],
-    ['b', () => cursor.left()],
+    ['a', () => getLiveCursor().startOfLine()],
+    ['b', () => getLiveCursor().left()],
     ['c', handleCtrlC],
     ['d', handleCtrlD],
-    ['e', () => cursor.endOfLine()],
-    ['f', () => cursor.right()],
-    ['h', () => cursor.deleteTokenBefore() ?? cursor.backspace()],
+    ['e', () => getLiveCursor().endOfLine()],
+    ['f', () => getLiveCursor().right()],
+    ['h', () => {
+      const cursor = getLiveCursor()
+      return cursor.deleteTokenBefore() ?? cursor.backspace()
+    }],
     ['k', killToLineEnd],
     ['n', () => downOrHistoryDown()],
     ['p', () => upOrHistoryUp()],
@@ -238,13 +318,15 @@ export function useTextInput({
   ])
 
   const handleMeta = mapInput([
-    ['b', () => cursor.prevWord()],
-    ['f', () => cursor.nextWord()],
-    ['d', () => cursor.deleteWordAfter()],
+    ['b', () => getLiveCursor().prevWord()],
+    ['f', () => getLiveCursor().nextWord()],
+    ['d', () => getLiveCursor().deleteWordAfter()],
     ['y', handleYankPop],
   ])
 
   function handleEnter(key: Key) {
+    const cursor = getLiveCursor()
+    const currentValue = getLiveValue()
     if (
       multiline &&
       cursor.offset > 0 &&
@@ -263,10 +345,11 @@ export function useTextInput({
     if (env.terminal === 'Apple_Terminal' && isModifierPressed('shift')) {
       return cursor.insert('\n')
     }
-    onSubmit?.(originalValue)
+    onSubmit?.(currentValue)
   }
 
   function upOrHistoryUp() {
+    const cursor = getLiveCursor()
     if (disableCursorMovementForUpDownKeys) {
       onHistoryUp?.()
       return cursor
@@ -291,6 +374,7 @@ export function useTextInput({
     return cursor
   }
   function downOrHistoryDown() {
+    const cursor = getLiveCursor()
     if (disableCursorMovementForUpDownKeys) {
       onHistoryDown?.()
       return cursor
@@ -315,7 +399,7 @@ export function useTextInput({
     return cursor
   }
 
-  function mapKey(key: Key): InputMapper {
+  function mapKey(key: Key, cursor: Cursor): InputMapper {
     switch (true) {
       case key.escape:
         return () => {
@@ -429,6 +513,7 @@ export function useTextInput({
   }
 
   function onInput(input: string, key: Key): void {
+    const currentCursor = getLiveCursor()
     // Note: Image paste shortcut (chat:imagePaste) is handled via useKeybindings in PromptInput
 
     // Apply filter if provided
@@ -446,18 +531,15 @@ export function useTextInput({
 
       // Apply all DEL characters as backspace operations synchronously
       // Try to delete tokens first, fall back to character backspace
-      let currentCursor = cursor
+      let nextCursor = currentCursor
       for (let i = 0; i < delCount; i++) {
-        currentCursor =
-          currentCursor.deleteTokenBefore() ?? currentCursor.backspace()
+        nextCursor =
+          nextCursor.deleteTokenBefore() ?? nextCursor.backspace()
       }
 
       // Update state once with the final result
-      if (!cursor.equals(currentCursor)) {
-        if (cursor.text !== currentCursor.text) {
-          onChange(currentCursor.text)
-        }
-        setOffset(currentCursor.offset)
+      if (!currentCursor.equals(nextCursor)) {
+        setValue(nextCursor.text, nextCursor.offset)
       }
       resetKillAccumulation()
       resetYankState()
@@ -474,13 +556,10 @@ export function useTextInput({
       resetYankState()
     }
 
-    const nextCursor = mapKey(key)(filteredInput)
+    const nextCursor = mapKey(key, currentCursor)(filteredInput)
     if (nextCursor) {
-      if (!cursor.equals(nextCursor)) {
-        if (cursor.text !== nextCursor.text) {
-          onChange(nextCursor.text)
-        }
-        setOffset(nextCursor.offset)
+      if (!currentCursor.equals(nextCursor)) {
+        setValue(nextCursor.text, nextCursor.offset)
       }
       // SSH-coalesced Enter: on slow links, "o" + Enter can arrive as one
       // chunk "o\r". parseKeypress only matches s === '\r', so it hit the
@@ -512,6 +591,7 @@ export function useTextInput({
 
   return {
     onInput,
+    value,
     renderedValue: cursor.render(
       cursorChar,
       mask,
@@ -520,6 +600,7 @@ export function useTextInput({
       maxVisibleLines,
     ),
     offset,
+    setValue,
     setOffset,
     cursorLine: cursorPos.line - cursor.getViewportStartLine(maxVisibleLines),
     cursorColumn: cursorPos.column,

src/hooks/useVimInput.ts

@@ -70,14 +70,14 @@ export function useVimInput(props: UseVimInputProps): VimInputState {
     // Vim behavior: move cursor left by 1 when exiting insert mode
     // (unless at beginning of line or at offset 0)
     const offset = textInput.offset
-    if (offset > 0 && props.value[offset - 1] !== '\n') {
+    if (offset > 0 && textInput.value[offset - 1] !== '\n') {
       textInput.setOffset(offset - 1)
     }
 
     vimStateRef.current = { mode: 'NORMAL', command: { type: 'idle' } }
     setMode('NORMAL')
     onModeChange?.('NORMAL')
-  }, [onModeChange, textInput, props.value])
+  }, [onModeChange, textInput])
 
   function createOperatorContext(
     cursor: Cursor,
@@ -85,8 +85,8 @@ export function useVimInput(props: UseVimInputProps): VimInputState {
   ): OperatorContext {
     return {
       cursor,
-      text: props.value,
-      setText: (newText: string) => props.onChange(newText),
+      text: textInput.value,
+      setText: (newText: string) => textInput.setValue(newText),
       setOffset: (offset: number) => textInput.setOffset(offset),
       enterInsert: (offset: number) => switchToInsertMode(offset),
       getRegister: () => persistentRef.current.register,
@@ -110,15 +110,18 @@ export function useVimInput(props: UseVimInputProps): VimInputState {
     const change = persistentRef.current.lastChange
     if (!change) return
 
-    const cursor = Cursor.fromText(props.value, props.columns, textInput.offset)
+    const cursor = Cursor.fromText(
+      textInput.value,
+      props.columns,
+      textInput.offset,
+    )
     const ctx = createOperatorContext(cursor, true)
 
     switch (change.type) {
       case 'insert':
         if (change.text) {
           const newCursor = cursor.insert(change.text)
-          props.onChange(newCursor.text)
-          textInput.setOffset(newCursor.offset)
+          textInput.setValue(newCursor.text, newCursor.offset)
         }
         break
 
@@ -179,7 +182,11 @@ export function useVimInput(props: UseVimInputProps): VimInputState {
     // lookups expect single chars and a prepended space would break them.
     const filtered = inputFilter ? inputFilter(rawInput, key) : rawInput
     const input = state.mode === 'INSERT' ? filtered : rawInput
-    const cursor = Cursor.fromText(props.value, props.columns, textInput.offset)
+    const cursor = Cursor.fromText(
+      textInput.value,
+      props.columns,
+      textInput.offset,
+    )
 
     if (key.ctrl) {
       textInput.onInput(input, key)

src/ink/components/App.tsx

@@ -115,7 +115,10 @@ export default class App extends PureComponent<Props, State> {
   keyParseState = INITIAL_STATE;
   // Timer for flushing incomplete escape sequences
   incompleteEscapeTimer: NodeJS.Timeout | null = null;
-  stdinMode: 'readable' | 'data' = process.env.OPENCLAUDE_USE_READABLE_STDIN === '1' ? 'readable' : 'data';
+  // Default to readable-mode stdin (legacy Ink behavior). The data-mode path
+  // is kept as an explicit opt-in because some terminals can enter a state
+  // where startup input appears frozen when data mode is the default.
+  stdinMode: 'readable' | 'data' = process.env.OPENCLAUDE_USE_DATA_STDIN === '1' || process.env.OPENCLAUDE_USE_READABLE_STDIN === '0' ? 'data' : 'readable';
   // Timeout durations for incomplete sequences (ms)
   readonly NORMAL_TIMEOUT = 50; // Short timeout for regular esc sequences
   readonly PASTE_TIMEOUT = 500; // Longer timeout for paste operations

src/ink/ink.tsx

@@ -33,7 +33,7 @@ import createRenderer, { type Renderer } from './renderer.js';
 import { CellWidth, CharPool, cellAt, createScreen, HyperlinkPool, isEmptyCellAt, migrateScreenPools, StylePool } from './screen.js';
 import { applySearchHighlight } from './searchHighlight.js';
 import { applySelectionOverlay, captureScrolledRows, clearSelection, createSelectionState, extendSelection, type FocusMove, findPlainTextUrlAt, getSelectedText, hasSelection, moveFocus, type SelectionState, selectLineAt, selectWordAt, shiftAnchor, shiftSelection, shiftSelectionForFollow, startSelection, updateSelection } from './selection.js';
-import { SYNC_OUTPUT_SUPPORTED, supportsExtendedKeys, type Terminal, writeDiffToTerminal } from './terminal.js';
+import { shouldSkipMainScreenSyncMarkers, shouldUseMainScreenRewrite, SYNC_OUTPUT_SUPPORTED, supportsExtendedKeys, type Terminal, writeDiffToTerminal } from './terminal.js';
 import { CURSOR_HOME, cursorMove, cursorPosition, DISABLE_KITTY_KEYBOARD, DISABLE_MODIFY_OTHER_KEYS, ENABLE_KITTY_KEYBOARD, ENABLE_MODIFY_OTHER_KEYS, ERASE_SCREEN } from './termio/csi.js';
 import { DBP, DFE, DISABLE_MOUSE_TRACKING, ENABLE_MOUSE_TRACKING, ENTER_ALT_SCREEN, EXIT_ALT_SCREEN, SHOW_CURSOR } from './termio/dec.js';
 import { CLEAR_ITERM2_PROGRESS, CLEAR_TAB_STATUS, setClipboard, supportsTabStatus, wrapForMultiplexer } from './termio/osc.js';
@@ -609,12 +609,13 @@ export default class Ink {
       };
     }
     const tDiff = performance.now();
+    const rewriteMainScreen = !this.altScreenActive && shouldUseMainScreenRewrite();
     const diff = this.log.render(prevFrame, frame, this.altScreenActive,
     // DECSTBM needs BSU/ESU atomicity — without it the outer terminal
     // renders the scrolled-but-not-yet-repainted intermediate state.
     // tmux is the main case (re-emits DECSTBM with its own timing and
     // doesn't implement DEC 2026, so SYNC_OUTPUT_SUPPORTED is false).
-    SYNC_OUTPUT_SUPPORTED);
+    SYNC_OUTPUT_SUPPORTED, rewriteMainScreen);
     const diffMs = performance.now() - tDiff;
     // Swap buffers
     this.backFrame = this.frontFrame;
@@ -759,7 +760,8 @@ export default class Ink {
       }
     }
     const tWrite = performance.now();
-    writeDiffToTerminal(this.terminal, optimized, this.altScreenActive && !SYNC_OUTPUT_SUPPORTED);
+    const skipSyncMarkers = this.altScreenActive ? !SYNC_OUTPUT_SUPPORTED : rewriteMainScreen || shouldSkipMainScreenSyncMarkers();
+    writeDiffToTerminal(this.terminal, optimized, skipSyncMarkers);
     const writeMs = performance.now() - tWrite;
 
     // Update blit safety for the NEXT frame. The frame just rendered

src/ink/log-update.test.ts

@@ -0,0 +1,125 @@
+import { expect, test } from 'bun:test'
+
+import type { Frame } from './frame.ts'
+import { LogUpdate } from './log-update.ts'
+import {
+  CellWidth,
+  CharPool,
+  createScreen,
+  HyperlinkPool,
+  setCellAt,
+  StylePool,
+} from './screen.ts'
+
+function collectStdout(diff: ReturnType<LogUpdate['render']>): string {
+  return diff
+    .filter((patch): patch is Extract<(typeof diff)[number], { type: 'stdout' }> => patch.type === 'stdout')
+    .map(patch => patch.content)
+    .join('')
+}
+
+function createHarness() {
+  const stylePool = new StylePool()
+  const charPool = new CharPool()
+  const hyperlinkPool = new HyperlinkPool()
+
+  return {
+    stylePool,
+    charPool,
+    hyperlinkPool,
+    log: new LogUpdate({ isTTY: true, stylePool }),
+  }
+}
+
+function frameFromLines(
+  stylePool: StylePool,
+  charPool: CharPool,
+  hyperlinkPool: HyperlinkPool,
+  lines: string[],
+  cursor = { x: 0, y: lines.length, visible: true },
+): Frame {
+  const width = lines.reduce((max, line) => Math.max(max, line.length), 0)
+  const screen = createScreen(width, lines.length, stylePool, charPool, hyperlinkPool)
+
+  for (const [y, line] of lines.entries()) {
+    for (const [x, char] of [...line].entries()) {
+      setCellAt(screen, x, y, {
+        char,
+        styleId: stylePool.none,
+        width: CellWidth.Narrow,
+      })
+    }
+  }
+
+  return {
+    screen,
+    viewport: {
+      width: Math.max(width, 1),
+      height: 10,
+    },
+    cursor,
+  }
+}
+
+test('ghostty main-screen rewrite paints prompt content without full terminal reset when width is stable', () => {
+  const { stylePool, charPool, hyperlinkPool, log } = createHarness()
+  const prev = frameFromLines(stylePool, charPool, hyperlinkPool, ['      '])
+  const next = frameFromLines(stylePool, charPool, hyperlinkPool, ['prompt'])
+
+  const diff = log.render(prev, next, false, true, true)
+  const stdout = collectStdout(diff)
+
+  expect(diff.some(patch => patch.type === 'clearTerminal')).toBe(false)
+  expect(diff.some(patch => patch.type === 'clear' && patch.count === 1)).toBe(
+    true,
+  )
+  expect(stdout).toContain('prompt')
+})
+
+test('ghostty main-screen rewrite clears only the changed prompt tail before repainting', () => {
+  const { stylePool, charPool, hyperlinkPool, log } = createHarness()
+  const prev = frameFromLines(
+    stylePool,
+    charPool,
+    hyperlinkPool,
+    ['status', '> abc'],
+  )
+  const next = frameFromLines(
+    stylePool,
+    charPool,
+    hyperlinkPool,
+    ['status', '> abcd'],
+  )
+
+  const diff = log.render(prev, next, false, true, true)
+  const stdout = collectStdout(diff)
+
+  expect(diff.some(patch => patch.type === 'clearTerminal')).toBe(false)
+  expect(diff.some(patch => patch.type === 'clear' && patch.count === 1)).toBe(
+    true,
+  )
+  expect(stdout).toContain('abcd')
+})
+
+test('ghostty main-screen rewrite falls back to incremental diff for larger changes', () => {
+  const { stylePool, charPool, hyperlinkPool, log } = createHarness()
+  const prev = frameFromLines(
+    stylePool,
+    charPool,
+    hyperlinkPool,
+    ['row 0', 'row 1', 'row 2', 'row 3', 'row 4', '> abc'],
+  )
+  const next = frameFromLines(
+    stylePool,
+    charPool,
+    hyperlinkPool,
+    ['row 0 updated', 'row 1', 'row 2', 'row 3', 'row 4', '> abcd'],
+  )
+
+  const diff = log.render(prev, next, false, true, true)
+  const stdout = collectStdout(diff)
+
+  expect(diff.some(patch => patch.type === 'clear')).toBe(false)
+  expect(stdout).toContain('updated')
+  expect(stdout).toContain('abcd')
+})

src/ink/log-update.ts

@@ -125,6 +125,7 @@ export class LogUpdate {
     next: Frame,
     altScreen = false,
     decstbmSafe = true,
+    rewriteMainScreen = false,
   ): Diff {
     if (!this.options.isTTY) {
       return this.renderFullFrame(next)
@@ -146,6 +147,13 @@ export class LogUpdate {
       return fullResetSequence_CAUSES_FLICKER(next, 'resize', stylePool)
     }
 
+    if (!altScreen && rewriteMainScreen) {
+      const rewriteStartY = findMainScreenRewriteStart(prev.screen, next.screen)
+      if (rewriteStartY !== null) {
+        return rewriteMainScreenFrame(prev, next, stylePool, rewriteStartY)
+      }
+    }
+
     // DECSTBM scroll optimization: when a ScrollBox's scrollTop changed,
     // shift content with a hardware scroll (CSI top;bot r + CSI n S/T)
     // instead of rewriting the whole scroll region. The shiftRows on
@@ -420,34 +428,8 @@ export class LogUpdate {
     // Main screen: if cursor needs to be past the last line of content
     // (typical: cursor.y = screen.height), emit \n to create that line
     // since cursor movement can't create new lines.
-    if (altScreen) {
-      // no-op; next frame's CSI H anchors cursor
-    } else if (next.cursor.y >= next.screen.height) {
-      // Move to column 0 of current line, then emit newlines to reach target row
-      screen.txn(prev => {
-        const rowsToCreate = next.cursor.y - prev.y
-        if (rowsToCreate > 0) {
-          // Use CR to resolve pending wrap (if any) without advancing
-          // to the next line, then LF to create each new row.
-          const patches: Diff = new Array<Diff[number]>(1 + rowsToCreate)
-          patches[0] = CARRIAGE_RETURN
-          for (let i = 0; i < rowsToCreate; i++) {
-            patches[1 + i] = NEWLINE
-          }
-          return [patches, { dx: -prev.x, dy: rowsToCreate }]
-        }
-        // At or past target row - need to move cursor to correct position
-        const dy = next.cursor.y - prev.y
-        if (dy !== 0 || prev.x !== next.cursor.x) {
-          // Use CR to clear pending wrap (if any), then cursor move
-          const patches: Diff = [CARRIAGE_RETURN]
-          patches.push({ type: 'cursorMove', x: next.cursor.x, y: dy })
-          return [patches, { dx: next.cursor.x - prev.x, dy }]
-        }
-        return [[], { dx: 0, dy: 0 }]
-      })
-    } else {
-      moveCursorTo(screen, next.cursor.x, next.cursor.y)
+    if (!altScreen) {
+      restoreMainScreenCursor(screen, next)
     }
 
     const elapsed = performance.now() - startTime
@@ -467,6 +449,77 @@ export class LogUpdate {
   }
 }
 
+function rewriteMainScreenFrame(
+  prev: Frame,
+  next: Frame,
+  stylePool: StylePool,
+  startY: number,
+): Diff {
+  const diff: Diff = []
+  const clearCount = prev.screen.height - startY
+
+  if (clearCount > 0) {
+    const clearStartY = prev.screen.height - 1
+    const clearCursor = new VirtualScreen(prev.cursor, next.viewport.width)
+    moveCursorTo(clearCursor, 0, clearStartY)
+    diff.push(...clearCursor.diff)
+    diff.push({ type: 'clear', count: clearCount })
+  }
+
+  const screen = new VirtualScreen(
+    clearCount > 0 ? { x: 0, y: startY } : prev.cursor,
+    next.viewport.width,
+  )
+  renderFrameSlice(screen, next, startY, next.screen.height, stylePool)
+  restoreMainScreenCursor(screen, next)
+
+  return [...diff, ...screen.diff]
+}
+
+const MAX_MAIN_SCREEN_REWRITE_ROWS = 6
+
+function findMainScreenRewriteStart(prev: Screen, next: Screen): number | null {
+  const commonHeight = Math.min(prev.height, next.height)
+  let firstChangedY = commonHeight
+
+  for (let y = 0; y < commonHeight; y += 1) {
+    if (!rowsEqual(prev, next, y)) {
+      firstChangedY = y
+      break
+    }
+  }
+
+  const rewriteRows = Math.max(prev.height, next.height) - firstChangedY
+  if (rewriteRows <= 0) {
+    return null
+  }
+
+  return rewriteRows <= MAX_MAIN_SCREEN_REWRITE_ROWS ? firstChangedY : null
+}
+
+function rowsEqual(prev: Screen, next: Screen, y: number): boolean {
+  if (prev.width !== next.width) {
+    return false
+  }
+
+  if (prev.softWrap[y] !== next.softWrap[y]) {
+    return false
+  }
+
+  const rowStart = y * prev.width
+  const rowEnd = rowStart + prev.width
+  for (let index = rowStart; index < rowEnd; index += 1) {
+    if (
+      prev.cells64[index] !== next.cells64[index] ||
+      prev.noSelect[index] !== next.noSelect[index]
+    ) {
+      return false
+    }
+  }
+
+  return true
+}
+
 function transitionHyperlink(
   diff: Diff,
   current: Hyperlink,
@@ -622,6 +675,37 @@ function renderFrameSlice(
   return screen
 }
 
+function restoreMainScreenCursor(screen: VirtualScreen, next: Frame): void {
+  if (next.cursor.y >= next.screen.height) {
+    // Move to column 0 of current line, then emit newlines to reach target row
+    screen.txn(prev => {
+      const rowsToCreate = next.cursor.y - prev.y
+      if (rowsToCreate > 0) {
+        // Use CR to resolve pending wrap (if any) without advancing
+        // to the next line, then LF to create each new row.
+        const patches: Diff = new Array<Diff[number]>(1 + rowsToCreate)
+        patches[0] = CARRIAGE_RETURN
+        for (let i = 0; i < rowsToCreate; i++) {
+          patches[1 + i] = NEWLINE
+        }
+        return [patches, { dx: -prev.x, dy: rowsToCreate }]
+      }
+      // At or past target row - need to move cursor to correct position
+      const dy = next.cursor.y - prev.y
+      if (dy !== 0 || prev.x !== next.cursor.x) {
+        // Use CR to clear pending wrap (if any), then cursor move
+        const patches: Diff = [CARRIAGE_RETURN]
+        patches.push({ type: 'cursorMove', x: next.cursor.x, y: dy })
+        return [patches, { dx: next.cursor.x - prev.x, dy }]
+      }
+      return [[], { dx: 0, dy: 0 }]
+    })
+    return
+  }
+
+  moveCursorTo(screen, next.cursor.x, next.cursor.y)
+}
+
 type Delta = { dx: number; dy: number }
 
 /**

src/ink/reconciler.test.ts

@@ -0,0 +1,369 @@
+import { PassThrough } from 'node:stream'
+
+import { expect, test } from 'bun:test'
+import React from 'react'
+
+import type { DOMElement, ElementNames } from './dom.ts'
+import instances from './instances.ts'
+import { LayoutEdge } from './layout/node.ts'
+import type { ParsedKey } from './parse-keypress.ts'
+import { createRoot } from './root.ts'
+
+type TestStdin = PassThrough & {
+  isTTY: boolean
+  setRawMode: (mode: boolean) => void
+  ref: () => void
+  unref: () => void
+}
+
+const RAW_TEXT_STYLE = {
+  flexDirection: 'row',
+  flexGrow: 0,
+  flexShrink: 1,
+  textWrap: 'wrap',
+} as const
+
+function createTestStreams(): {
+  stdout: PassThrough
+  stdin: TestStdin
+} {
+  const stdout = new PassThrough()
+  const stdin = new PassThrough() as TestStdin
+
+  stdin.isTTY = true
+  stdin.setRawMode = () => {}
+  stdin.ref = () => {}
+  stdin.unref = () => {}
+
+  ;(stdout as unknown as { columns: number }).columns = 120
+  ;(stdout as unknown as { rows: number }).rows = 24
+  ;(stdout as unknown as { isTTY: boolean }).isTTY = true
+
+  return { stdout, stdin }
+}
+
+async function waitForCondition(
+  predicate: () => boolean,
+  errorMessage: string,
+  timeoutMs = 2000,
+): Promise<void> {
+  const startedAt = Date.now()
+
+  while (Date.now() - startedAt < timeoutMs) {
+    if (predicate()) {
+      return
+    }
+
+    await Bun.sleep(10)
+  }
+
+  throw new Error(errorMessage)
+}
+
+function getRootNode(stdout: PassThrough): DOMElement {
+  const instance = getInkInstance(stdout)
+
+  if (!instance.rootNode) {
+    throw new Error('Ink instance root node not found')
+  }
+
+  return instance.rootNode
+}
+
+function getInkInstance(stdout: PassThrough): {
+  rootNode?: DOMElement
+  dispatchKeyboardEvent: (parsedKey: ParsedKey) => void
+} {
+  const instance = instances.get(
+    stdout as unknown as NodeJS.WriteStream,
+  ) as
+    | {
+        rootNode?: DOMElement
+        dispatchKeyboardEvent: (parsedKey: ParsedKey) => void
+      }
+    | undefined
+
+  if (!instance) {
+    throw new Error('Ink instance not found')
+  }
+
+  return instance
+}
+
+function findElement(
+  node: DOMElement,
+  nodeName: ElementNames,
+): DOMElement | undefined {
+  if (node.nodeName === nodeName) {
+    return node
+  }
+
+  for (const child of node.childNodes) {
+    if (child.nodeName === '#text') {
+      continue
+    }
+
+    const found = findElement(child, nodeName)
+    if (found) {
+      return found
+    }
+  }
+
+  return undefined
+}
+
+function requireElement(stdout: PassThrough, nodeName: ElementNames): DOMElement {
+  const found = findElement(getRootNode(stdout), nodeName)
+
+  if (!found) {
+    throw new Error(`Expected to find ${nodeName} in Ink root tree`)
+  }
+
+  return found
+}
+
+async function createHarness(): Promise<{
+  stdout: PassThrough
+  stdin: TestStdin
+  root: Awaited<ReturnType<typeof createRoot>>
+  dispose: () => Promise<void>
+}> {
+  const { stdout, stdin } = createTestStreams()
+  const root = await createRoot({
+    stdout: stdout as unknown as NodeJS.WriteStream,
+    stdin: stdin as unknown as NodeJS.ReadStream,
+    patchConsole: false,
+  })
+
+  return {
+    stdout,
+    stdin,
+    root,
+    dispose: async () => {
+      root.unmount()
+      stdin.end()
+      stdout.end()
+      await Bun.sleep(25)
+    },
+  }
+}
+
+test('raw ink-box updates keyboard handlers and attributes in place across rerenders', async () => {
+  const calls: string[] = []
+  const firstHandler = () => calls.push('first')
+  const secondHandler = () => calls.push('second')
+  const harness = await createHarness()
+
+  try {
+    harness.root.render(
+      React.createElement(
+        'ink-box',
+        {
+          autoFocus: true,
+          onKeyDown: firstHandler,
+          tabIndex: 0,
+        },
+        'first render',
+      ),
+    )
+
+    await Bun.sleep(25)
+
+    const firstBox = requireElement(harness.stdout, 'ink-box')
+    expect(firstBox.attributes.tabIndex).toBe(0)
+    expect(firstBox._eventHandlers?.onKeyDown).toBe(firstHandler)
+
+    harness.root.render(
+      React.createElement(
+        'ink-box',
+        {
+          autoFocus: true,
+          onKeyDown: secondHandler,
+          tabIndex: 1,
+        },
+        'second render',
+      ),
+    )
+
+    await Bun.sleep(25)
+
+    const secondBox = requireElement(harness.stdout, 'ink-box')
+    expect(secondBox).toBe(firstBox)
+    expect(secondBox.attributes.tabIndex).toBe(1)
+    expect(secondBox._eventHandlers?.onKeyDown).toBe(secondHandler)
+
+    getInkInstance(harness.stdout).dispatchKeyboardEvent({
+      kind: 'key',
+      name: 'a',
+      fn: false,
+      ctrl: false,
+      meta: false,
+      shift: false,
+      option: false,
+      super: false,
+      sequence: 'a',
+      raw: 'a',
+      isPasted: false,
+    })
+
+    await waitForCondition(
+      () => calls.length === 1,
+      'Timed out waiting for rerendered onKeyDown handler to fire',
+    )
+
+    expect(calls).toEqual(['second'])
+  } finally {
+    await harness.dispose()
+  }
+})
+
+test('raw ink-text updates textStyles in place across rerenders', async () => {
+  const harness = await createHarness()
+
+  try {
+    harness.root.render(
+      React.createElement(
+        'ink-text',
+        {
+          style: RAW_TEXT_STYLE,
+          textStyles: { color: 'ansi:red' },
+        },
+        'host text',
+      ),
+    )
+
+    await Bun.sleep(25)
+
+    const firstText = requireElement(harness.stdout, 'ink-text')
+    expect(firstText.textStyles).toEqual({ color: 'ansi:red' })
+
+    harness.root.render(
+      React.createElement(
+        'ink-text',
+        {
+          style: RAW_TEXT_STYLE,
+          textStyles: { color: 'ansi:blue' },
+        },
+        'host text',
+      ),
+    )
+
+    await Bun.sleep(25)
+
+    const secondText = requireElement(harness.stdout, 'ink-text')
+    expect(secondText).toBe(firstText)
+    expect(secondText.textStyles).toEqual({ color: 'ansi:blue' })
+  } finally {
+    await harness.dispose()
+  }
+})
+
+test('raw ink-box removes event handler when set to undefined', async () => {
+  const calls: string[] = []
+  const handler = () => calls.push('fired')
+  const harness = await createHarness()
+
+  try {
+    harness.root.render(
+      React.createElement(
+        'ink-box',
+        {
+          autoFocus: true,
+          onKeyDown: handler,
+          tabIndex: 0,
+        },
+        'with handler',
+      ),
+    )
+
+    await Bun.sleep(25)
+
+    const box = requireElement(harness.stdout, 'ink-box')
+    expect(box._eventHandlers?.onKeyDown).toBe(handler)
+
+    // Remove the handler
+    harness.root.render(
+      React.createElement(
+        'ink-box',
+        {
+          autoFocus: true,
+          tabIndex: 0,
+        },
+        'without handler',
+      ),
+    )
+
+    await Bun.sleep(25)
+
+    const sameBox = requireElement(harness.stdout, 'ink-box')
+    expect(sameBox).toBe(box)
+    expect(sameBox._eventHandlers?.onKeyDown).toBeUndefined()
+
+    // Dispatch a key event and verify the removed handler is NOT called
+    getInkInstance(harness.stdout).dispatchKeyboardEvent({
+      kind: 'key',
+      name: 'a',
+      fn: false,
+      ctrl: false,
+      meta: false,
+      shift: false,
+      option: false,
+      super: false,
+      sequence: 'a',
+      raw: 'a',
+      isPasted: false,
+    })
+
+    await Bun.sleep(50)
+    expect(calls).toEqual([])
+  } finally {
+    await harness.dispose()
+  }
+})
+
+test('raw ink-box updates layout style in place across rerenders', async () => {
+  const harness = await createHarness()
+
+  try {
+    harness.root.render(
+      React.createElement(
+        'ink-box',
+        {
+          style: { flexDirection: 'row', paddingLeft: 1 },
+        },
+        'styled box',
+      ),
+    )
+
+    await Bun.sleep(25)
+
+    const box = requireElement(harness.stdout, 'ink-box')
+    expect(box.style.flexDirection).toBe('row')
+    expect(box.style.paddingLeft).toBe(1)
+
+    harness.root.render(
+      React.createElement(
+        'ink-box',
+        {
+          style: { flexDirection: 'column', paddingLeft: 2 },
+        },
+        'styled box',
+      ),
+    )
+
+    await Bun.sleep(25)
+
+    const sameBox = requireElement(harness.stdout, 'ink-box')
+    expect(sameBox).toBe(box)
+    expect(sameBox.style.flexDirection).toBe('column')
+    expect(sameBox.style.paddingLeft).toBe(2)
+
+    // Verify the update reached the layout engine, not just the style object
+    const yogaNode = sameBox.yogaNode!
+    expect(yogaNode).toBeDefined()
+    yogaNode.calculateLayout(120)
+    expect(yogaNode.getComputedPadding(LayoutEdge.Left)).toBe(2)
+  } finally {
+    await harness.dispose()
+  }
+})

src/ink/reconciler.ts

@@ -449,17 +449,25 @@ const reconciler = createReconciler<
   },
   commitUpdate(
     node: DOMElement,
-    updatePayload: UpdatePayload | null,
     _type: ElementNames,
-    _oldProps: Props,
-    _newProps: Props,
+    oldProps: Props,
+    newProps: Props,
   ): void {
-    if (!updatePayload) {
+    // React 19 mutation mode calls commitUpdate as
+    // (instance, type, oldProps, newProps, fiber) and does not pass the
+    // prepareUpdate() payload here. This renderer used to treat the second
+    // argument as updatePayload, which left mounted ink-* nodes with stale
+    // attributes, event handlers, and textStyles until something forced a
+    // remount. Recompute the prop/style diff here so host nodes update
+    // correctly in place on rerender.
+    const props = diff(oldProps, newProps)
+    const style = diff(oldProps['style'] as Styles, newProps['style'] as Styles)
+    const nextStyle = newProps['style'] as Styles | undefined
+
+    if (!props && !style) {
       return
     }
 
-    const { props, style, nextStyle } = updatePayload
-
     if (props) {
       for (const [key, value] of Object.entries(props)) {
         if (key === 'style') {

src/ink/terminal.ts

@@ -135,6 +135,13 @@ export function setXtversionName(name: string): void {
   if (xtversionName === undefined) xtversionName = name
 }
 
+export function isGhosttyTerminal(): boolean {
+  if (process.env.NODE_ENV === 'test') return false
+  if (process.env.TERM_PROGRAM === 'ghostty') return true
+  if (process.env.TERM === 'xterm-ghostty') return true
+  return xtversionName?.toLowerCase().startsWith('ghostty') ?? false
+}
+
 /** True if running in an xterm.js-based terminal (VS Code, Cursor, Windsurf
  *  integrated terminals). Combines TERM_PROGRAM env check (fast, sync, but
  *  not forwarded over SSH) with the XTVERSION probe result (async, survives
@@ -145,6 +152,20 @@ export function isXtermJs(): boolean {
   return xtversionName?.startsWith('xterm.js') ?? false
 }
 
+/** Ghostty currently repaints main-screen prompt updates more reliably
+ *  without DEC 2026 synchronized output. Prefer explicit terminal identity
+ *  (TERM_PROGRAM/TERM or XTVERSION) in real sessions, but keep tests
+ *  deterministic by disabling the env-based detection under NODE_ENV=test. */
+export function shouldSkipMainScreenSyncMarkers(): boolean {
+  return isGhosttyTerminal()
+}
+
+/** Ghostty's main-screen prompt updates are currently more reliable when we
+ *  bypass the incremental diff path and rewrite the visible prompt block. */
+export function shouldUseMainScreenRewrite(): boolean {
+  return isGhosttyTerminal()
+}
+
 // Terminals known to correctly implement the Kitty keyboard protocol
 // (CSI >1u) and/or xterm modifyOtherKeys (CSI >4;2m) for ctrl+shift+<letter>
 // disambiguation. We previously enabled unconditionally (#23350), assuming

src/ink/termio/osc.test.ts

@@ -13,6 +13,7 @@ const execFileNoThrowMock = mock(
 
 mock.module('../../utils/execFileNoThrow.js', () => ({
   execFileNoThrow: execFileNoThrowMock,
+  execFileNoThrowWithCwd: execFileNoThrowMock,
 }))
 
 mock.module('../../utils/tempfile.js', () => ({

src/screens/REPL.tsx

@@ -238,6 +238,7 @@ import { usePromptsFromClaudeInChrome } from 'src/hooks/usePromptsFromClaudeInCh
 import { getTipToShowOnSpinner, recordShownTip } from 'src/services/tips/tipScheduler.js';
 import type { Theme } from 'src/utils/theme.js';
 import { isPromptTypingSuppressionActive } from './replInputSuppression.js';
+import { shouldRunStartupChecks } from './replStartupGates.js';
 import { checkAndDisableBypassPermissionsIfNeeded, checkAndDisableAutoModeIfNeeded, useKickOffCheckAndDisableBypassPermissionsIfNeeded, useKickOffCheckAndDisableAutoModeIfNeeded } from 'src/utils/permissions/bypassPermissionsKillswitch.js';
 import { SandboxManager } from 'src/utils/sandbox/sandbox-adapter.js';
 import { SANDBOX_NETWORK_ACCESS_TOOL_NAME } from 'src/cli/structuredIO.js';
@@ -616,7 +617,6 @@ export function REPL({
   const toolPermissionContext = useAppState(s => s.toolPermissionContext);
   const verbose = useAppState(s => s.verbose);
   const mcp = useAppState(s => s.mcp);
-  const plugins = useAppState(s => s.plugins);
   const agentDefinitions = useAppState(s => s.agentDefinitions);
   const fileHistory = useAppState(s => s.fileHistory);
   const initialMessage = useAppState(s => s.initialMessage);
@@ -779,7 +779,7 @@ export function REPL({
   }, [localTools, initialTools]);
 
   // Initialize plugin management
-  useManagePlugins({
+  const pluginCommands = useManagePlugins({
     enabled: !isRemoteSession
   });
   const tasksV2 = useTasksV2WithCollapseEffect();
@@ -792,10 +792,8 @@ export function REPL({
   // accepts, and only then is the REPL component mounted and this effect runs.
   // This ensures that plugin installations from repository and user settings only
   // happen after explicit user consent to trust the current working directory.
-  useEffect(() => {
-    if (isRemoteSession) return;
-    void performStartupChecks(setAppState);
-  }, [setAppState, isRemoteSession]);
+  // Deferring startup checks is handled below (after promptTypingSuppressionActive
+  // is declared) to avoid temporal dead zone issues.
 
   // Allow Claude in Chrome MCP to send prompts through MCP notifications
   // and sync permission mode changes to the Chrome extension
@@ -827,10 +825,16 @@ export function REPL({
   }, [mainThreadAgentDefinition, mergedTools]);
 
   // Merge commands from local state, plugins, and MCP
-  const commandsWithPlugins = useMergedCommands(localCommands, plugins.commands as Command[]);
+  const commandsWithPlugins = useMergedCommands(localCommands, pluginCommands as Command[]);
   const mergedCommands = useMergedCommands(commandsWithPlugins, mcp.commands as Command[]);
+  // Keep plugin commands out of render-time command props. Feeding the full
+  // execution set into PromptInput/Messages reintroduced the startup repaint
+  // freeze, while transcript rendering still round-trips plugin skills via the
+  // SkillTool's `skill` payload without needing plugin command objects here.
+  const renderMergedCommands = useMergedCommands(localCommands, mcp.commands as Command[]);
   // Filter out all commands if disableSlashCommands is true
   const commands = useMemo(() => disableSlashCommands ? [] : mergedCommands, [disableSlashCommands, mergedCommands]);
+  const renderCommands = useMemo(() => disableSlashCommands ? [] : renderMergedCommands, [disableSlashCommands, renderMergedCommands]);
   useIdeLogging(isRemoteSession ? EMPTY_MCP_CLIENTS : mcp.clients);
   useIdeSelection(isRemoteSession ? EMPTY_MCP_CLIENTS : mcp.clients, setIDESelection);
   const [streamMode, setStreamMode] = useState<SpinnerMode>('responding');
@@ -1429,6 +1433,25 @@ export function REPL({
   const activeRemote = sshRemote.isRemoteMode ? sshRemote : directConnect.isRemoteMode ? directConnect : remoteSession;
   const [pastedContents, setPastedContents] = useState<Record<number, PastedContent>>({});
   const [submitCount, setSubmitCount] = useState(0);
+
+  // Defer startup checks until the user has submitted their first message.
+  // A timeout or grace period is insufficient (issue #363): if the user pauses
+  // before typing, startup checks can still fire and recommendation dialogs
+  // steal focus. Only the user's first submission guarantees the prompt was
+  // the first thing they interacted with.
+  const startupChecksStartedRef = React.useRef(false);
+  const hasHadFirstSubmission = (submitCount ?? 0) > 0;
+  useEffect(() => {
+    if (isRemoteSession) return;
+    if (startupChecksStartedRef.current) return;
+    if (!shouldRunStartupChecks({
+      isRemoteSession,
+      hasStarted: startupChecksStartedRef.current,
+      hasHadFirstSubmission,
+    })) return;
+    startupChecksStartedRef.current = true;
+    void performStartupChecks(setAppState);
+  }, [setAppState, isRemoteSession, hasHadFirstSubmission]);
   // Ref instead of state to avoid triggering React re-renders on every
   // streaming text_delta. The spinner reads this via its animation timer.
   const responseLengthRef = useRef(0);
@@ -2061,13 +2084,14 @@ export function REPL({
     if (allowDialogsWithAnimation && showRemoteCallout) return 'remote-callout';
 
     // LSP plugin recommendation (lowest priority - non-blocking suggestion)
-    if (allowDialogsWithAnimation && lspRecommendation) return 'lsp-recommendation';
+    // Suppress during startup window to prevent stealing focus from the prompt (issue #363)
+    if (allowDialogsWithAnimation && lspRecommendation && startupChecksStartedRef.current) return 'lsp-recommendation';
 
     // Plugin hint from CLI/SDK stderr (same priority band as LSP rec)
-    if (allowDialogsWithAnimation && hintRecommendation) return 'plugin-hint';
+    if (allowDialogsWithAnimation && hintRecommendation && startupChecksStartedRef.current) return 'plugin-hint';
 
     // Desktop app upsell (max 3 launches, lowest priority)
-    if (allowDialogsWithAnimation && showDesktopUpsellStartup) return 'desktop-upsell';
+    if (allowDialogsWithAnimation && showDesktopUpsellStartup && startupChecksStartedRef.current) return 'desktop-upsell';
     return undefined;
   }
   const focusedInputDialog = getFocusedInputDialog();
@@ -4408,7 +4432,7 @@ export function REPL({
     // and transcript-mode are mutually exclusive (this early return), so
     // only one ScrollBox is ever mounted at a time.
     const transcriptScrollRef = isFullscreenEnvEnabled() && !disableVirtualScroll && !dumpMode ? scrollRef : undefined;
-    const transcriptMessagesElement = <Messages messages={transcriptMessages} tools={tools} commands={commands} verbose={true} toolJSX={null} toolUseConfirmQueue={[]} inProgressToolUseIDs={inProgressToolUseIDs} isMessageSelectorVisible={false} conversationId={conversationId} screen={screen} agentDefinitions={agentDefinitions} streamingToolUses={transcriptStreamingToolUses} showAllInTranscript={showAllInTranscript} onOpenRateLimitOptions={handleOpenRateLimitOptions} isLoading={isLoading} hidePastThinking={true} streamingThinking={streamingThinking} scrollRef={transcriptScrollRef} jumpRef={jumpRef} onSearchMatchesChange={onSearchMatchesChange} scanElement={scanElement} setPositions={setPositions} disableRenderCap={dumpMode} />;
+    const transcriptMessagesElement = <Messages messages={transcriptMessages} tools={tools} commands={renderCommands} verbose={true} toolJSX={null} toolUseConfirmQueue={[]} inProgressToolUseIDs={inProgressToolUseIDs} isMessageSelectorVisible={false} conversationId={conversationId} screen={screen} agentDefinitions={agentDefinitions} streamingToolUses={transcriptStreamingToolUses} showAllInTranscript={showAllInTranscript} onOpenRateLimitOptions={handleOpenRateLimitOptions} isLoading={isLoading} hidePastThinking={true} streamingThinking={streamingThinking} scrollRef={transcriptScrollRef} jumpRef={jumpRef} onSearchMatchesChange={onSearchMatchesChange} scanElement={scanElement} setPositions={setPositions} disableRenderCap={dumpMode} />;
     const transcriptToolJSX = toolJSX && <Box flexDirection="column" width="100%">
       {toolJSX.jsx}
     </Box>;
@@ -4576,7 +4600,7 @@ export function REPL({
         jumpToNew(scrollRef.current);
       }} scrollable={<>
         <TeammateViewHeader />
-        <Messages messages={displayedMessages} tools={tools} commands={commands} verbose={verbose} toolJSX={toolJSX} toolUseConfirmQueue={toolUseConfirmQueue} inProgressToolUseIDs={viewedTeammateTask ? viewedTeammateTask.inProgressToolUseIDs ?? new Set() : inProgressToolUseIDs} isMessageSelectorVisible={isMessageSelectorVisible} conversationId={conversationId} screen={screen} streamingToolUses={streamingToolUses} showAllInTranscript={showAllInTranscript} agentDefinitions={agentDefinitions} onOpenRateLimitOptions={handleOpenRateLimitOptions} isLoading={isLoading} streamingText={isLoading && !viewedAgentTask ? visibleStreamingText : null} isBriefOnly={viewedAgentTask ? false : isBriefOnly} unseenDivider={viewedAgentTask ? undefined : unseenDivider} scrollRef={isFullscreenEnvEnabled() ? scrollRef : undefined} trackStickyPrompt={isFullscreenEnvEnabled() ? true : undefined} cursor={cursor} setCursor={setCursor} cursorNavRef={cursorNavRef} />
+        <Messages messages={displayedMessages} tools={tools} commands={renderCommands} verbose={verbose} toolJSX={toolJSX} toolUseConfirmQueue={toolUseConfirmQueue} inProgressToolUseIDs={viewedTeammateTask ? viewedTeammateTask.inProgressToolUseIDs ?? new Set() : inProgressToolUseIDs} isMessageSelectorVisible={isMessageSelectorVisible} conversationId={conversationId} screen={screen} streamingToolUses={streamingToolUses} showAllInTranscript={showAllInTranscript} agentDefinitions={agentDefinitions} onOpenRateLimitOptions={handleOpenRateLimitOptions} isLoading={isLoading} streamingText={isLoading && !viewedAgentTask ? visibleStreamingText : null} isBriefOnly={viewedAgentTask ? false : isBriefOnly} unseenDivider={viewedAgentTask ? undefined : unseenDivider} scrollRef={isFullscreenEnvEnabled() ? scrollRef : undefined} trackStickyPrompt={isFullscreenEnvEnabled() ? true : undefined} cursor={cursor} setCursor={setCursor} cursorNavRef={cursorNavRef} />
         <AwsAuthStatusBox />
         {/* Hide the processing placeholder while a modal is showing —
                   it would sit at the last visible transcript row right above
@@ -4909,7 +4933,7 @@ export function REPL({
             {"external" === 'ant' && skillImprovementSurvey.suggestion && <SkillImprovementSurvey isOpen={skillImprovementSurvey.isOpen} skillName={skillImprovementSurvey.suggestion.skillName} updates={skillImprovementSurvey.suggestion.updates} handleSelect={skillImprovementSurvey.handleSelect} inputValue={inputValue} setInputValue={setInputValue} />}
             {showIssueFlagBanner && <IssueFlagBanner />}
             { }
-            <PromptInput debug={debug} ideSelection={ideSelection} hasSuppressedDialogs={!!hasSuppressedDialogs} isLocalJSXCommandActive={isShowingLocalJSXCommand} getToolUseContext={getToolUseContext} toolPermissionContext={toolPermissionContext} setToolPermissionContext={setToolPermissionContext} apiKeyStatus={apiKeyStatus} commands={commands} agents={agentDefinitions.activeAgents} isLoading={isLoading} onExit={handleExit} verbose={verbose} messages={messages} onAutoUpdaterResult={setAutoUpdaterResult} autoUpdaterResult={autoUpdaterResult} input={inputValue} onInputChange={setInputValue} mode={inputMode} onModeChange={setInputMode} stashedPrompt={stashedPrompt} setStashedPrompt={setStashedPrompt} submitCount={submitCount} onShowMessageSelector={handleShowMessageSelector} onMessageActionsEnter={
+            <PromptInput debug={debug} ideSelection={ideSelection} hasSuppressedDialogs={!!hasSuppressedDialogs} isLocalJSXCommandActive={isShowingLocalJSXCommand} getToolUseContext={getToolUseContext} toolPermissionContext={toolPermissionContext} setToolPermissionContext={setToolPermissionContext} apiKeyStatus={apiKeyStatus} commands={renderCommands} agents={agentDefinitions.activeAgents} isLoading={isLoading} onExit={handleExit} verbose={verbose} messages={messages} onAutoUpdaterResult={setAutoUpdaterResult} autoUpdaterResult={autoUpdaterResult} input={inputValue} onInputChange={setInputValue} mode={inputMode} onModeChange={setInputMode} stashedPrompt={stashedPrompt} setStashedPrompt={setStashedPrompt} submitCount={submitCount} onShowMessageSelector={handleShowMessageSelector} onMessageActionsEnter={
               // Works during isLoading — edit cancels first; uuid selection survives appends.
               feature('MESSAGE_ACTIONS') && isFullscreenEnvEnabled() && !disableMessageActions ? enterMessageActions : undefined} mcpClients={mcpClients} pastedContents={pastedContents} setPastedContents={setPastedContents} vimMode={vimMode} setVimMode={setVimMode} showBashesDialog={showBashesDialog} setShowBashesDialog={setShowBashesDialog} onSubmit={onSubmit} onAgentSubmit={onAgentSubmit} isSearchingHistory={isSearchingHistory} setIsSearchingHistory={setIsSearchingHistory} helpOpen={isHelpOpen} setHelpOpen={setIsHelpOpen} insertTextRef={feature('VOICE_MODE') ? insertTextRef : undefined} voiceInterimRange={voice.interimRange} />
             <SessionBackgroundHint onBackgroundSession={handleBackgroundSession} isLoading={isLoading} />

src/screens/replStartupGates.test.ts

@@ -0,0 +1,53 @@
+import { describe, expect, test } from 'bun:test'
+
+import { shouldRunStartupChecks } from './replStartupGates.js'
+
+describe('shouldRunStartupChecks', () => {
+  test('runs checks after first message submission', () => {
+    expect(shouldRunStartupChecks({
+      isRemoteSession: false,
+      hasStarted: false,
+      hasHadFirstSubmission: true,
+    })).toBe(true)
+  })
+
+  test('skips checks in remote sessions even after submission', () => {
+    expect(shouldRunStartupChecks({
+      isRemoteSession: true,
+      hasStarted: false,
+      hasHadFirstSubmission: true,
+    })).toBe(false)
+  })
+
+  test('skips checks if already started', () => {
+    expect(shouldRunStartupChecks({
+      isRemoteSession: false,
+      hasStarted: true,
+      hasHadFirstSubmission: true,
+    })).toBe(false)
+  })
+
+  test('does not run checks before first submission', () => {
+    expect(shouldRunStartupChecks({
+      isRemoteSession: false,
+      hasStarted: false,
+      hasHadFirstSubmission: false,
+    })).toBe(false)
+  })
+
+  test('does not run checks when idle before first submission', () => {
+    expect(shouldRunStartupChecks({
+      isRemoteSession: false,
+      hasStarted: false,
+      hasHadFirstSubmission: false,
+    })).toBe(false)
+  })
+
+  test('skips checks in remote session regardless of other conditions', () => {
+    expect(shouldRunStartupChecks({
+      isRemoteSession: true,
+      hasStarted: false,
+      hasHadFirstSubmission: false,
+    })).toBe(false)
+  })
+})

src/screens/replStartupGates.ts

@@ -0,0 +1,35 @@
+/**
+ * Startup gates for the REPL.
+ *
+ * Prevents startup plugin checks and recommendation dialogs from stealing
+ * focus before the user has interacted with the prompt.
+ *
+ * This addresses the root cause of issue #363: on mount, performStartupChecks
+ * triggers plugin loading, which populates trackedFiles, which triggers
+ * useLspPluginRecommendation to surface an LSP recommendation dialog. Since
+ * promptTypingSuppressionActive is false before the user has typed anything,
+ * getFocusedInputDialog() returns the dialog, unmounting PromptInput entirely.
+ *
+ * The fix gates startup checks on actual prompt interaction. A pure timeout
+ * or grace period is insufficient because pausing before typing would still
+ * allow dialogs to steal focus. Only the user's first submission guarantees
+ * the prompt is no longer in the vulnerable pre-interaction window.
+ */
+
+/**
+ * Determines whether startup checks should run.
+ *
+ * Startup checks are deferred until the user has submitted their first
+ * message. This guarantees the prompt was the first thing the user interacted
+ * with, so no recommendation dialog can steal focus before the first keystroke.
+ */
+export function shouldRunStartupChecks(options: {
+  isRemoteSession: boolean;
+  hasStarted: boolean;
+  hasHadFirstSubmission: boolean;
+}): boolean {
+  if (options.isRemoteSession) return false;
+  if (options.hasStarted) return false;
+  if (!options.hasHadFirstSubmission) return false;
+  return true;
+}

src/services/api/client.test.ts

@@ -14,16 +14,27 @@ type ShimClient = {
 const originalFetch = globalThis.fetch
 const originalMacro = (globalThis as Record<string, unknown>).MACRO
 const originalEnv = {
+  CLAUDE_CODE_USE_OPENAI: process.env.CLAUDE_CODE_USE_OPENAI,
   CLAUDE_CODE_USE_GEMINI: process.env.CLAUDE_CODE_USE_GEMINI,
   GEMINI_API_KEY: process.env.GEMINI_API_KEY,
   GEMINI_MODEL: process.env.GEMINI_MODEL,
   GEMINI_BASE_URL: process.env.GEMINI_BASE_URL,
+  GEMINI_AUTH_MODE: process.env.GEMINI_AUTH_MODE,
   GOOGLE_API_KEY: process.env.GOOGLE_API_KEY,
   OPENAI_API_KEY: process.env.OPENAI_API_KEY,
   OPENAI_BASE_URL: process.env.OPENAI_BASE_URL,
   OPENAI_MODEL: process.env.OPENAI_MODEL,
   ANTHROPIC_API_KEY: process.env.ANTHROPIC_API_KEY,
   ANTHROPIC_AUTH_TOKEN: process.env.ANTHROPIC_AUTH_TOKEN,
+  ANTHROPIC_CUSTOM_HEADERS: process.env.ANTHROPIC_CUSTOM_HEADERS,
+}
+
+function restoreEnv(key: string, value: string | undefined): void {
+  if (value === undefined) {
+    delete process.env[key]
+  } else {
+    process.env[key] = value
+  }
 }
 
 beforeEach(() => {
@@ -32,27 +43,33 @@ beforeEach(() => {
   process.env.GEMINI_API_KEY = 'gemini-test-key'
   process.env.GEMINI_MODEL = 'gemini-2.0-flash'
   process.env.GEMINI_BASE_URL = 'https://gemini.example/v1beta/openai'
+  process.env.GEMINI_AUTH_MODE = 'api-key'
 
+  delete process.env.CLAUDE_CODE_USE_OPENAI
   delete process.env.GOOGLE_API_KEY
   delete process.env.OPENAI_API_KEY
   delete process.env.OPENAI_BASE_URL
   delete process.env.OPENAI_MODEL
   delete process.env.ANTHROPIC_API_KEY
   delete process.env.ANTHROPIC_AUTH_TOKEN
+  delete process.env.ANTHROPIC_CUSTOM_HEADERS
 })
 
 afterEach(() => {
   ;(globalThis as Record<string, unknown>).MACRO = originalMacro
-  process.env.CLAUDE_CODE_USE_GEMINI = originalEnv.CLAUDE_CODE_USE_GEMINI
-  process.env.GEMINI_API_KEY = originalEnv.GEMINI_API_KEY
-  process.env.GEMINI_MODEL = originalEnv.GEMINI_MODEL
-  process.env.GEMINI_BASE_URL = originalEnv.GEMINI_BASE_URL
-  process.env.GOOGLE_API_KEY = originalEnv.GOOGLE_API_KEY
-  process.env.OPENAI_API_KEY = originalEnv.OPENAI_API_KEY
-  process.env.OPENAI_BASE_URL = originalEnv.OPENAI_BASE_URL
-  process.env.OPENAI_MODEL = originalEnv.OPENAI_MODEL
-  process.env.ANTHROPIC_API_KEY = originalEnv.ANTHROPIC_API_KEY
-  process.env.ANTHROPIC_AUTH_TOKEN = originalEnv.ANTHROPIC_AUTH_TOKEN
+  restoreEnv('CLAUDE_CODE_USE_OPENAI', originalEnv.CLAUDE_CODE_USE_OPENAI)
+  restoreEnv('CLAUDE_CODE_USE_GEMINI', originalEnv.CLAUDE_CODE_USE_GEMINI)
+  restoreEnv('GEMINI_API_KEY', originalEnv.GEMINI_API_KEY)
+  restoreEnv('GEMINI_MODEL', originalEnv.GEMINI_MODEL)
+  restoreEnv('GEMINI_BASE_URL', originalEnv.GEMINI_BASE_URL)
+  restoreEnv('GEMINI_AUTH_MODE', originalEnv.GEMINI_AUTH_MODE)
+  restoreEnv('GOOGLE_API_KEY', originalEnv.GOOGLE_API_KEY)
+  restoreEnv('OPENAI_API_KEY', originalEnv.OPENAI_API_KEY)
+  restoreEnv('OPENAI_BASE_URL', originalEnv.OPENAI_BASE_URL)
+  restoreEnv('OPENAI_MODEL', originalEnv.OPENAI_MODEL)
+  restoreEnv('ANTHROPIC_API_KEY', originalEnv.ANTHROPIC_API_KEY)
+  restoreEnv('ANTHROPIC_AUTH_TOKEN', originalEnv.ANTHROPIC_AUTH_TOKEN)
+  restoreEnv('ANTHROPIC_CUSTOM_HEADERS', originalEnv.ANTHROPIC_CUSTOM_HEADERS)
   globalThis.fetch = originalFetch
 })
 
@@ -119,3 +136,135 @@ test('routes Gemini provider requests through the OpenAI-compatible shim', async
     model: 'gemini-2.0-flash',
   })
 })
+
+test('strips Anthropic-specific custom headers before sending OpenAI-compatible shim requests', async () => {
+  let capturedHeaders: Headers | undefined
+
+  process.env.CLAUDE_CODE_USE_OPENAI = '1'
+  process.env.OPENAI_API_KEY = 'openai-test-key'
+  process.env.OPENAI_BASE_URL = 'http://example.test/v1'
+  process.env.OPENAI_MODEL = 'gpt-4o'
+  process.env.ANTHROPIC_CUSTOM_HEADERS = [
+    'anthropic-version: 2023-06-01',
+    'anthropic-beta: prompt-caching-2024-07-31',
+    'x-anthropic-additional-protection: true',
+    'x-claude-remote-session-id: remote-123',
+    'x-app: cli',
+    'x-safe-header: keep-me',
+  ].join('\n')
+
+  globalThis.fetch = (async (_input, init) => {
+    capturedHeaders = new Headers(init?.headers)
+
+    return new Response(
+      JSON.stringify({
+        id: 'chatcmpl-openai',
+        model: 'gpt-4o',
+        choices: [
+          {
+            message: {
+              role: 'assistant',
+              content: 'ok',
+            },
+            finish_reason: 'stop',
+          },
+        ],
+        usage: {
+          prompt_tokens: 8,
+          completion_tokens: 3,
+          total_tokens: 11,
+        },
+      }),
+      {
+        headers: {
+          'Content-Type': 'application/json',
+        },
+      },
+    )
+  }) as FetchType
+
+  const client = (await getAnthropicClient({
+    maxRetries: 0,
+    model: 'gpt-4o',
+  })) as unknown as ShimClient
+
+  await client.beta.messages.create({
+    model: 'gpt-4o',
+    system: 'test system',
+    messages: [{ role: 'user', content: 'hello' }],
+    max_tokens: 64,
+    stream: false,
+  })
+
+  expect(capturedHeaders?.get('anthropic-version')).toBeNull()
+  expect(capturedHeaders?.get('anthropic-beta')).toBeNull()
+  expect(capturedHeaders?.get('x-anthropic-additional-protection')).toBeNull()
+  expect(capturedHeaders?.get('x-claude-remote-session-id')).toBeNull()
+  expect(capturedHeaders?.get('x-app')).toBeNull()
+  expect(capturedHeaders?.get('x-safe-header')).toBe('keep-me')
+  expect(capturedHeaders?.get('authorization')).toBe('Bearer openai-test-key')
+})
+
+test('strips Anthropic-specific custom headers on providerOverride shim requests too', async () => {
+  let capturedHeaders: Headers | undefined
+
+  process.env.ANTHROPIC_CUSTOM_HEADERS = [
+    'anthropic-version: 2023-06-01',
+    'anthropic-beta: prompt-caching-2024-07-31',
+    'x-claude-remote-session-id: remote-123',
+    'x-safe-header: keep-me',
+  ].join('\n')
+
+  globalThis.fetch = (async (_input, init) => {
+    capturedHeaders = new Headers(init?.headers)
+
+    return new Response(
+      JSON.stringify({
+        id: 'chatcmpl-provider-override',
+        model: 'gpt-4o',
+        choices: [
+          {
+            message: {
+              role: 'assistant',
+              content: 'ok',
+            },
+            finish_reason: 'stop',
+          },
+        ],
+        usage: {
+          prompt_tokens: 8,
+          completion_tokens: 3,
+          total_tokens: 11,
+        },
+      }),
+      {
+        headers: {
+          'Content-Type': 'application/json',
+        },
+      },
+    )
+  }) as FetchType
+
+  const client = (await getAnthropicClient({
+    maxRetries: 0,
+    providerOverride: {
+      model: 'gpt-4o',
+      baseURL: 'http://example.test/v1',
+      apiKey: 'provider-test-key',
+    },
+  })) as unknown as ShimClient
+
+  await client.beta.messages.create({
+    model: 'unused',
+    system: 'test system',
+    messages: [{ role: 'user', content: 'hello' }],
+    max_tokens: 64,
+    stream: false,
+  })
+
+  expect(capturedHeaders?.get('anthropic-version')).toBeNull()
+  expect(capturedHeaders?.get('anthropic-beta')).toBeNull()
+  expect(capturedHeaders?.get('x-claude-remote-session-id')).toBeNull()
+  expect(capturedHeaders?.get('x-safe-header')).toBe('keep-me')
+  expect(capturedHeaders?.get('authorization')).toBe('Bearer provider-test-key')
+})

src/services/api/client.ts

@@ -177,7 +177,8 @@ export async function getAnthropicClient({
   if (
     isEnvTruthy(process.env.CLAUDE_CODE_USE_OPENAI) ||
     isEnvTruthy(process.env.CLAUDE_CODE_USE_GITHUB) ||
-    isEnvTruthy(process.env.CLAUDE_CODE_USE_GEMINI)
+    isEnvTruthy(process.env.CLAUDE_CODE_USE_GEMINI) ||
+    isEnvTruthy(process.env.CLAUDE_CODE_USE_MISTRAL)
   ) {
     const { createOpenAIShimClient } = await import('./openaiShim.js')
     return createOpenAIShimClient({

src/services/api/codexShim.test.ts

@@ -17,16 +17,23 @@ const tempDirs: string[] = []
 const originalEnv = {
   OPENAI_BASE_URL: process.env.OPENAI_BASE_URL,
   OPENAI_API_BASE: process.env.OPENAI_API_BASE,
+  CLAUDE_CODE_USE_GITHUB: process.env.CLAUDE_CODE_USE_GITHUB,
 }
 
 afterEach(() => {
+  if (originalEnv.OPENAI_BASE_URL === undefined) delete process.env.OPENAI_BASE_URL
+  else process.env.OPENAI_BASE_URL = originalEnv.OPENAI_BASE_URL
+
+  if (originalEnv.OPENAI_API_BASE === undefined) delete process.env.OPENAI_API_BASE
+  else process.env.OPENAI_API_BASE = originalEnv.OPENAI_API_BASE
+
+  if (originalEnv.CLAUDE_CODE_USE_GITHUB === undefined) delete process.env.CLAUDE_CODE_USE_GITHUB
+  else process.env.CLAUDE_CODE_USE_GITHUB = originalEnv.CLAUDE_CODE_USE_GITHUB
+
   while (tempDirs.length > 0) {
     const dir = tempDirs.pop()
     if (dir) rmSync(dir, { recursive: true, force: true })
   }
-
-  process.env.OPENAI_BASE_URL = originalEnv.OPENAI_BASE_URL
-  process.env.OPENAI_API_BASE = originalEnv.OPENAI_API_BASE
 })
 
 function createTempAuthJson(payload: Record<string, unknown>): string {
@@ -71,6 +78,7 @@ describe('Codex provider config', () => {
   test('resolves codexplan alias to Codex transport with reasoning', () => {
     delete process.env.OPENAI_BASE_URL
     delete process.env.OPENAI_API_BASE
+    delete process.env.CLAUDE_CODE_USE_GITHUB
 
     const resolved = resolveProviderRequest({ model: 'codexplan' })
     expect(resolved.transport).toBe('codex_responses')
@@ -457,6 +465,37 @@ describe('Codex request translation', () => {
     ])
   })
 
+  test('strips leaked reasoning preamble from completed Codex text responses', () => {
+    const message = convertCodexResponseToAnthropicMessage(
+      {
+        id: 'resp_1',
+        model: 'gpt-5.4',
+        output: [
+          {
+            type: 'message',
+            role: 'assistant',
+            content: [
+              {
+                type: 'output_text',
+                text:
+                  'The user just said "hey" - a simple greeting. I should respond briefly and friendly.\n\nHey! How can I help you today?',
+              },
+            ],
+          },
+        ],
+        usage: { input_tokens: 12, output_tokens: 4 },
+      },
+      'gpt-5.4',
+    )
+
+    expect(message.content).toEqual([
+      {
+        type: 'text',
+        text: 'Hey! How can I help you today?',
+      },
+    ])
+  })
+
   test('translates Codex SSE text stream into Anthropic events', async () => {
     const responseText = [
       'event: response.output_item.added',
@@ -487,4 +526,44 @@ describe('Codex request translation', () => {
       'message_stop',
     ])
   })
+
+  test('strips leaked reasoning preamble from Codex SSE text stream', async () => {
+    const responseText = [
+      'event: response.output_item.added',
+      'data: {"type":"response.output_item.added","item":{"id":"msg_1","type":"message","status":"in_progress","content":[],"role":"assistant"},"output_index":0,"sequence_number":0}',
+      '',
+      'event: response.content_part.added',
+      'data: {"type":"response.content_part.added","content_index":0,"item_id":"msg_1","output_index":0,"part":{"type":"output_text","text":""},"sequence_number":1}',
+      '',
+      'event: response.output_text.delta',
+      'data: {"type":"response.output_text.delta","content_index":0,"delta":"The user just said \\"hey\\" - a simple greeting. I should respond briefly and friendly.\\n\\nHey! How can I help you today?","item_id":"msg_1","output_index":0,"sequence_number":2}',
+      '',
+      'event: response.output_item.done',
+      'data: {"type":"response.output_item.done","item":{"id":"msg_1","type":"message","status":"completed","content":[{"type":"output_text","text":"The user just said \\"hey\\" - a simple greeting. I should respond briefly and friendly.\\n\\nHey! How can I help you today?"}],"role":"assistant"},"output_index":0,"sequence_number":3}',
+      '',
+      'event: response.completed',
+      'data: {"type":"response.completed","response":{"id":"resp_1","status":"completed","model":"gpt-5.4","output":[{"type":"message","role":"assistant","content":[{"type":"output_text","text":"The user just said \\"hey\\" - a simple greeting. I should respond briefly and friendly.\\n\\nHey! How can I help you today?"}]}],"usage":{"input_tokens":2,"output_tokens":1}},"sequence_number":4}',
+      '',
+    ].join('\n')
+
+    const stream = new ReadableStream({
+      start(controller) {
+        controller.enqueue(new TextEncoder().encode(responseText))
+        controller.close()
+      },
+    })
+
+    const textDeltas: string[] = []
+    for await (const event of codexStreamToAnthropic(
+      new Response(stream),
+      'gpt-5.4',
+    )) {
+      const delta = (event as { delta?: { type?: string; text?: string } }).delta
+      if (delta?.type === 'text_delta' && typeof delta.text === 'string') {
+        textDeltas.push(delta.text)
+      }
+    }
+
+    expect(textDeltas).toEqual(['Hey! How can I help you today?'])
+  })
 })

src/services/api/codexShim.ts

@@ -4,6 +4,11 @@ import type {
   ResolvedProviderRequest,
 } from './providerConfig.js'
 import { sanitizeSchemaForOpenAICompat } from './openaiSchemaSanitizer.js'
+import {
+  looksLikeLeakedReasoningPrefix,
+  shouldBufferPotentialReasoningPrefix,
+  stripLeakedReasoningPreamble,
+} from './reasoningLeakSanitizer.js'
 
 export interface AnthropicUsage {
   input_tokens: number
@@ -75,12 +80,17 @@ type CodexSseEvent = {
 function makeUsage(usage?: {
   input_tokens?: number
   output_tokens?: number
+  input_tokens_details?: { cached_tokens?: number }
+  prompt_tokens_details?: { cached_tokens?: number }
 }): AnthropicUsage {
   return {
     input_tokens: usage?.input_tokens ?? 0,
     output_tokens: usage?.output_tokens ?? 0,
     cache_creation_input_tokens: 0,
-    cache_read_input_tokens: 0,
+    cache_read_input_tokens:
+      usage?.input_tokens_details?.cached_tokens ??
+      usage?.prompt_tokens_details?.cached_tokens ??
+      0,
   }
 }
 
@@ -678,17 +688,34 @@ export async function* codexStreamToAnthropic(
     { index: number; toolUseId: string }
   >()
   let activeTextBlockIndex: number | null = null
+  let activeTextBuffer = ''
+  let textBufferMode: 'none' | 'pending' | 'strip' = 'none'
   let nextContentBlockIndex = 0
   let sawToolUse = false
   let finalResponse: Record<string, any> | undefined
 
   const closeActiveTextBlock = async function* () {
     if (activeTextBlockIndex === null) return
+    if (textBufferMode !== 'none') {
+      const sanitized = stripLeakedReasoningPreamble(activeTextBuffer)
+      if (sanitized) {
+        yield {
+          type: 'content_block_delta',
+          index: activeTextBlockIndex,
+          delta: {
+            type: 'text_delta',
+            text: sanitized,
+          },
+        }
+      }
+    }
     yield {
       type: 'content_block_stop',
       index: activeTextBlockIndex,
     }
     activeTextBlockIndex = null
+    activeTextBuffer = ''
+    textBufferMode = 'none'
   }
 
   const startTextBlockIfNeeded = async function* () {
@@ -764,7 +791,36 @@ export async function* codexStreamToAnthropic(
 
     if (event.event === 'response.output_text.delta') {
       yield* startTextBlockIfNeeded()
+      activeTextBuffer += payload.delta ?? ''
       if (activeTextBlockIndex !== null) {
+        if (
+          textBufferMode === 'strip' ||
+          looksLikeLeakedReasoningPrefix(activeTextBuffer)
+        ) {
+          textBufferMode = 'strip'
+          continue
+        }
+
+        if (textBufferMode === 'pending') {
+          if (shouldBufferPotentialReasoningPrefix(activeTextBuffer)) {
+            continue
+          }
+          yield {
+            type: 'content_block_delta',
+            index: activeTextBlockIndex,
+            delta: {
+              type: 'text_delta',
+              text: activeTextBuffer,
+            },
+          }
+          textBufferMode = 'none'
+          continue
+        }
+
+        if (shouldBufferPotentialReasoningPrefix(activeTextBuffer)) {
+          textBufferMode = 'pending'
+          continue
+        }
         yield {
           type: 'content_block_delta',
           index: activeTextBlockIndex,
@@ -839,8 +895,16 @@ export async function* codexStreamToAnthropic(
       stop_sequence: null,
     },
     usage: {
-      input_tokens: finalResponse?.usage?.input_tokens ?? 0,
+      // Subtract cached tokens: OpenAI includes them in input_tokens,
+      // but Anthropic convention treats input_tokens as non-cached only.
+      input_tokens: (finalResponse?.usage?.input_tokens ?? 0) -
+        (finalResponse?.usage?.input_tokens_details?.cached_tokens ??
+         finalResponse?.usage?.prompt_tokens_details?.cached_tokens ?? 0),
       output_tokens: finalResponse?.usage?.output_tokens ?? 0,
+      cache_read_input_tokens:
+        finalResponse?.usage?.input_tokens_details?.cached_tokens ??
+        finalResponse?.usage?.prompt_tokens_details?.cached_tokens ??
+        0,
     },
   }
   yield { type: 'message_stop' }
@@ -859,7 +923,7 @@ export function convertCodexResponseToAnthropicMessage(
         if (part?.type === 'output_text') {
           content.push({
             type: 'text',
-            text: part.text ?? '',
+            text: stripLeakedReasoningPreamble(part.text ?? ''),
           })
         }
       }

src/services/api/openaiShim.test.ts

@@ -7,6 +7,10 @@ const originalEnv = {
   OPENAI_BASE_URL: process.env.OPENAI_BASE_URL,
   OPENAI_API_KEY: process.env.OPENAI_API_KEY,
   OPENAI_MODEL: process.env.OPENAI_MODEL,
+  CLAUDE_CODE_USE_GITHUB: process.env.CLAUDE_CODE_USE_GITHUB,
+  GITHUB_TOKEN: process.env.GITHUB_TOKEN,
+  GH_TOKEN: process.env.GH_TOKEN,
+  CLAUDE_CODE_USE_OPENAI: process.env.CLAUDE_CODE_USE_OPENAI,
   CLAUDE_CODE_USE_GEMINI: process.env.CLAUDE_CODE_USE_GEMINI,
   GEMINI_API_KEY: process.env.GEMINI_API_KEY,
   GOOGLE_API_KEY: process.env.GOOGLE_API_KEY,
@@ -15,6 +19,7 @@ const originalEnv = {
   GEMINI_BASE_URL: process.env.GEMINI_BASE_URL,
   GEMINI_MODEL: process.env.GEMINI_MODEL,
   GOOGLE_CLOUD_PROJECT: process.env.GOOGLE_CLOUD_PROJECT,
+  ANTHROPIC_CUSTOM_HEADERS: process.env.ANTHROPIC_CUSTOM_HEADERS,
 }
 
 const originalFetch = globalThis.fetch
@@ -70,6 +75,10 @@ beforeEach(() => {
   process.env.OPENAI_BASE_URL = 'http://example.test/v1'
   process.env.OPENAI_API_KEY = 'test-key'
   delete process.env.OPENAI_MODEL
+  delete process.env.CLAUDE_CODE_USE_GITHUB
+  delete process.env.GITHUB_TOKEN
+  delete process.env.GH_TOKEN
+  delete process.env.CLAUDE_CODE_USE_OPENAI
   delete process.env.CLAUDE_CODE_USE_GEMINI
   delete process.env.GEMINI_API_KEY
   delete process.env.GOOGLE_API_KEY
@@ -78,12 +87,17 @@ beforeEach(() => {
   delete process.env.GEMINI_BASE_URL
   delete process.env.GEMINI_MODEL
   delete process.env.GOOGLE_CLOUD_PROJECT
+  delete process.env.ANTHROPIC_CUSTOM_HEADERS
 })
 
 afterEach(() => {
   restoreEnv('OPENAI_BASE_URL', originalEnv.OPENAI_BASE_URL)
   restoreEnv('OPENAI_API_KEY', originalEnv.OPENAI_API_KEY)
   restoreEnv('OPENAI_MODEL', originalEnv.OPENAI_MODEL)
+  restoreEnv('CLAUDE_CODE_USE_GITHUB', originalEnv.CLAUDE_CODE_USE_GITHUB)
+  restoreEnv('GITHUB_TOKEN', originalEnv.GITHUB_TOKEN)
+  restoreEnv('GH_TOKEN', originalEnv.GH_TOKEN)
+  restoreEnv('CLAUDE_CODE_USE_OPENAI', originalEnv.CLAUDE_CODE_USE_OPENAI)
   restoreEnv('CLAUDE_CODE_USE_GEMINI', originalEnv.CLAUDE_CODE_USE_GEMINI)
   restoreEnv('GEMINI_API_KEY', originalEnv.GEMINI_API_KEY)
   restoreEnv('GOOGLE_API_KEY', originalEnv.GOOGLE_API_KEY)
@@ -92,9 +106,227 @@ afterEach(() => {
   restoreEnv('GEMINI_BASE_URL', originalEnv.GEMINI_BASE_URL)
   restoreEnv('GEMINI_MODEL', originalEnv.GEMINI_MODEL)
   restoreEnv('GOOGLE_CLOUD_PROJECT', originalEnv.GOOGLE_CLOUD_PROJECT)
+  restoreEnv('ANTHROPIC_CUSTOM_HEADERS', originalEnv.ANTHROPIC_CUSTOM_HEADERS)
   globalThis.fetch = originalFetch
 })
 
+test('strips canonical Anthropic headers from direct shim defaultHeaders', async () => {
+  let capturedHeaders: Headers | undefined
+
+  globalThis.fetch = (async (_input, init) => {
+    capturedHeaders = new Headers(init?.headers)
+
+    return new Response(
+      JSON.stringify({
+        id: 'chatcmpl-1',
+        model: 'gpt-4o',
+        choices: [
+          {
+            message: {
+              role: 'assistant',
+              content: 'ok',
+            },
+            finish_reason: 'stop',
+          },
+        ],
+        usage: {
+          prompt_tokens: 8,
+          completion_tokens: 3,
+          total_tokens: 11,
+        },
+      }),
+      {
+        headers: {
+          'Content-Type': 'application/json',
+        },
+      },
+    )
+  }) as FetchType
+
+  const client = createOpenAIShimClient({
+    defaultHeaders: {
+      'anthropic-version': '2023-06-01',
+      'anthropic-beta': 'prompt-caching-2024-07-31',
+      'x-anthropic-additional-protection': 'true',
+      'x-claude-remote-session-id': 'remote-123',
+      'x-app': 'cli',
+      'x-client-app': 'sdk',
+      'x-safe-header': 'keep-me',
+    },
+  }) as OpenAIShimClient
+
+  await client.beta.messages.create({
+    model: 'gpt-4o',
+    system: 'test system',
+    messages: [{ role: 'user', content: 'hello' }],
+    max_tokens: 64,
+    stream: false,
+  })
+
+  expect(capturedHeaders?.get('anthropic-version')).toBeNull()
+  expect(capturedHeaders?.get('anthropic-beta')).toBeNull()
+  expect(capturedHeaders?.get('x-anthropic-additional-protection')).toBeNull()
+  expect(capturedHeaders?.get('x-claude-remote-session-id')).toBeNull()
+  expect(capturedHeaders?.get('x-app')).toBeNull()
+  expect(capturedHeaders?.get('x-client-app')).toBeNull()
+  expect(capturedHeaders?.get('x-safe-header')).toBe('keep-me')
+})
+
+test('strips canonical Anthropic headers from per-request shim headers too', async () => {
+  let capturedHeaders: Headers | undefined
+
+  globalThis.fetch = (async (_input, init) => {
+    capturedHeaders = new Headers(init?.headers)
+
+    return new Response(
+      JSON.stringify({
+        id: 'chatcmpl-1',
+        model: 'gpt-4o',
+        choices: [
+          {
+            message: {
+              role: 'assistant',
+              content: 'ok',
+            },
+            finish_reason: 'stop',
+          },
+        ],
+        usage: {
+          prompt_tokens: 8,
+          completion_tokens: 3,
+          total_tokens: 11,
+        },
+      }),
+      {
+        headers: {
+          'Content-Type': 'application/json',
+        },
+      },
+    )
+  }) as FetchType
+
+  const client = createOpenAIShimClient({}) as OpenAIShimClient
+
+  await client.beta.messages.create(
+    {
+      model: 'gpt-4o',
+      system: 'test system',
+      messages: [{ role: 'user', content: 'hello' }],
+      max_tokens: 64,
+      stream: false,
+    },
+    {
+      headers: {
+        'anthropic-version': '2023-06-01',
+        'anthropic-beta': 'prompt-caching-2024-07-31',
+        'x-safe-header': 'keep-me',
+      },
+    },
+  )
+
+  expect(capturedHeaders?.get('anthropic-version')).toBeNull()
+  expect(capturedHeaders?.get('anthropic-beta')).toBeNull()
+  expect(capturedHeaders?.get('x-safe-header')).toBe('keep-me')
+})
+
+test('strips Anthropic-specific headers on GitHub Codex transport requests', async () => {
+  let capturedHeaders: Headers | undefined
+
+  process.env.CLAUDE_CODE_USE_GITHUB = '1'
+  process.env.OPENAI_API_KEY = 'github-test-key'
+  delete process.env.OPENAI_BASE_URL
+  delete process.env.OPENAI_MODEL
+
+  globalThis.fetch = (async (_input, init) => {
+    capturedHeaders = new Headers(init?.headers)
+
+    return new Response('', {
+      status: 200,
+      headers: {
+        'Content-Type': 'text/event-stream',
+      },
+    })
+  }) as FetchType
+
+  const client = createOpenAIShimClient({}) as OpenAIShimClient
+
+  await client.beta.messages.create(
+    {
+      model: 'github:gpt-5-codex',
+      system: 'test system',
+      messages: [{ role: 'user', content: 'hello' }],
+      max_tokens: 64,
+      stream: true,
+    },
+    {
+      headers: {
+        'anthropic-version': '2023-06-01',
+        'anthropic-beta': 'prompt-caching-2024-07-31',
+        'x-anthropic-additional-protection': 'true',
+        'x-safe-header': 'keep-me',
+      },
+    },
+  )
+
+  expect(capturedHeaders?.get('anthropic-version')).toBeNull()
+  expect(capturedHeaders?.get('anthropic-beta')).toBeNull()
+  expect(capturedHeaders?.get('x-anthropic-additional-protection')).toBeNull()
+  expect(capturedHeaders?.get('x-safe-header')).toBe('keep-me')
+  expect(capturedHeaders?.get('authorization')).toBe('Bearer github-test-key')
+  expect(capturedHeaders?.get('editor-plugin-version')).toBe('copilot-chat/0.26.7')
+})
+
+test('strips Anthropic-specific headers on GitHub Codex transport with providerOverride API key', async () => {
+  let capturedHeaders: Headers | undefined
+
+  process.env.CLAUDE_CODE_USE_GITHUB = '1'
+  process.env.OPENAI_API_KEY = 'env-should-not-win'
+  delete process.env.OPENAI_BASE_URL
+  delete process.env.OPENAI_MODEL
+
+  globalThis.fetch = (async (_input, init) => {
+    capturedHeaders = new Headers(init?.headers)
+
+    return new Response('', {
+      status: 200,
+      headers: {
+        'Content-Type': 'text/event-stream',
+      },
+    })
+  }) as FetchType
+
+  const client = createOpenAIShimClient({
+    providerOverride: {
+      model: 'github:gpt-5-codex',
+      baseURL: 'https://api.githubcopilot.com',
+      apiKey: 'provider-override-key',
+    },
+  }) as OpenAIShimClient
+
+  await client.beta.messages.create(
+    {
+      model: 'ignored',
+      system: 'test system',
+      messages: [{ role: 'user', content: 'hello' }],
+      max_tokens: 64,
+      stream: true,
+    },
+    {
+      headers: {
+        'anthropic-version': '2023-06-01',
+        'x-claude-remote-session-id': 'remote-123',
+        'x-safe-header': 'keep-me',
+      },
+    },
+  )
+
+  expect(capturedHeaders?.get('anthropic-version')).toBeNull()
+  expect(capturedHeaders?.get('x-claude-remote-session-id')).toBeNull()
+  expect(capturedHeaders?.get('x-safe-header')).toBe('keep-me')
+  expect(capturedHeaders?.get('authorization')).toBe('Bearer provider-override-key')
+  expect(capturedHeaders?.get('editor-plugin-version')).toBe('copilot-chat/0.26.7')
+})
+
 test('preserves usage from final OpenAI stream chunk with empty choices', async () => {
   globalThis.fetch = (async (_input, init) => {
     const url = typeof _input === 'string' ? _input : _input.url
@@ -1806,12 +2038,70 @@ test('sanitizes malformed MCP tool schemas before sending them to OpenAI', async
     | undefined
 
   expect(parameters?.additionalProperties).toBe(false)
-  expect(parameters?.required).toEqual(['priority'])
+  // No required[] in the original schema → none added (optional properties must not be forced required)
+  expect(parameters?.required).toEqual([])
   expect(properties?.priority?.type).toBe('integer')
   expect(properties?.priority?.enum).toEqual([0, 1, 2, 3])
   expect(properties?.priority).not.toHaveProperty('default')
 })
 
+test('optional tool properties are not added to required[] — fixes Groq/Azure 400 tool_use_failed', async () => {
+  // Regression test for: all optional properties being sent as required in strict mode,
+  // causing providers like Groq to reject valid tool calls where the model omits optional args.
+  let requestBody: Record<string, unknown> | undefined
+
+  globalThis.fetch = (async (_input, init) => {
+    requestBody = JSON.parse(String(init?.body))
+
+    return new Response(
+      JSON.stringify({
+        id: 'chatcmpl-4',
+        model: 'gpt-4o',
+        choices: [{ message: { role: 'assistant', content: 'ok' }, finish_reason: 'stop' }],
+        usage: { prompt_tokens: 5, completion_tokens: 2, total_tokens: 7 },
+      }),
+      { headers: { 'Content-Type': 'application/json' } },
+    )
+  }) as FetchType
+
+  const client = createOpenAIShimClient({}) as OpenAIShimClient
+
+  await client.beta.messages.create({
+    model: 'gpt-4o',
+    messages: [{ role: 'user', content: 'read a file' }],
+    tools: [
+      {
+        name: 'Read',
+        description: 'Read a file',
+        input_schema: {
+          type: 'object',
+          properties: {
+            file_path: { type: 'string', description: 'Absolute path to file' },
+            offset: { type: 'number', description: 'Line to start from' },
+            limit: { type: 'number', description: 'Max lines to read' },
+            pages: { type: 'string', description: 'Page range for PDFs' },
+          },
+          required: ['file_path'],
+        },
+      },
+    ],
+    max_tokens: 16,
+    stream: false,
+  })
+
+  const parameters = (
+    requestBody?.tools as Array<{ function?: { parameters?: Record<string, unknown> } }>
+  )?.[0]?.function?.parameters
+
+  expect(parameters?.required).toEqual(['file_path'])
+
+  const required = parameters?.required as string[] | undefined
+  expect(required).not.toContain('offset')
+  expect(required).not.toContain('limit')
+  expect(required).not.toContain('pages')
+  expect(parameters?.additionalProperties).toBe(false)
+})
+
 // ---------------------------------------------------------------------------
 // Issue #202 — consecutive role coalescing (Devstral, Mistral strict templates)
 // ---------------------------------------------------------------------------
@@ -1849,7 +2139,7 @@ test('coalesces consecutive user messages to avoid alternation errors (issue #20
     stream: false,
   })
 
-  expect(sentMessages?.length).toBe(2) // system + 1 merged user
+  expect(sentMessages?.length).toBe(2)
   expect(sentMessages?.[0]?.role).toBe('system')
   expect(sentMessages?.[1]?.role).toBe('user')
   const userContent = sentMessages?.[1]?.content as string
@@ -1883,13 +2173,12 @@ test('coalesces consecutive assistant messages preserving tool_calls (issue #202
     stream: false,
   })
 
-  // system + user + merged assistant + tool
   const assistantMsgs = sentMessages?.filter(m => m.role === 'assistant')
-  expect(assistantMsgs?.length).toBe(1) // two assistant turns merged into one
+  expect(assistantMsgs?.length).toBe(1)
   expect(assistantMsgs?.[0]?.tool_calls?.length).toBeGreaterThan(0)
 })
 
-test('non-streaming: reasoning_content emitted as thinking block, used as text when content is null', async () => {
+test('non-streaming: reasoning_content emitted as thinking block only when content is null', async () => {
   globalThis.fetch = (async (_input, _init) => {
     return new Response(
       JSON.stringify({
@@ -1931,7 +2220,6 @@ test('non-streaming: reasoning_content emitted as thinking block, used as text w
 
   expect(result.content).toEqual([
     { type: 'thinking', thinking: 'Let me think about this step by step.' },
-    { type: 'text', text: 'Let me think about this step by step.' },
   ])
 })
 
@@ -1975,11 +2263,8 @@ test('non-streaming: empty string content does not fall through to reasoning_con
     stream: false,
   })) as { content: Array<Record<string, unknown>> }
 
-  // reasoning_content should be a thinking block, and also used as text
-  // since content is empty string (treated as absent)
   expect(result.content).toEqual([
     { type: 'thinking', thinking: 'Chain of thought here.' },
-    { type: 'text', text: 'Chain of thought here.' },
   ])
 })
 
@@ -2029,6 +2314,46 @@ test('non-streaming: real content takes precedence over reasoning_content', asyn
   ])
 })
 
+test('non-streaming: strips leaked reasoning preamble from assistant content', async () => {
+  globalThis.fetch = (async () => {
+    return new Response(
+      JSON.stringify({
+        id: 'chatcmpl-1',
+        model: 'gpt-5-mini',
+        choices: [
+          {
+            message: {
+              role: 'assistant',
+              content:
+                'The user just said "hey" - a simple greeting. I should respond briefly and friendly.\n\nHey! How can I help you today?',
+            },
+            finish_reason: 'stop',
+          },
+        ],
+        usage: {
+          prompt_tokens: 10,
+          completion_tokens: 20,
+          total_tokens: 30,
+        },
+      }),
+      { headers: { 'Content-Type': 'application/json' } },
+    )
+  }) as FetchType
+
+  const client = createOpenAIShimClient({}) as OpenAIShimClient
+  const result = (await client.beta.messages.create({
+    model: 'gpt-5-mini',
+    system: 'test system',
+    messages: [{ role: 'user', content: 'hey' }],
+    max_tokens: 64,
+    stream: false,
+  })) as { content: Array<Record<string, unknown>> }
+
+  expect(result.content).toEqual([
+    { type: 'text', text: 'Hey! How can I help you today?' },
+  ])
+})
+
 test('streaming: thinking block closed before tool call', async () => {
   globalThis.fetch = (async (_input, _init) => {
     const chunks = makeStreamChunks([
@@ -2104,7 +2429,6 @@ test('streaming: thinking block closed before tool call', async () => {
 
   const types = events.map(e => e.type)
 
-  // Verify thinking block is started, then closed, then tool call starts
   const thinkingStartIdx = types.indexOf('content_block_start')
   const firstStopIdx = types.indexOf('content_block_stop')
   const toolStartIdx = types.indexOf(
@@ -2116,9 +2440,139 @@ test('streaming: thinking block closed before tool call', async () => {
   expect(firstStopIdx).toBeGreaterThan(thinkingStartIdx)
   expect(toolStartIdx).toBeGreaterThan(firstStopIdx)
 
-  // Verify thinking block start content
   const thinkingStart = events[thinkingStartIdx] as {
     content_block?: Record<string, unknown>
   }
   expect(thinkingStart?.content_block?.type).toBe('thinking')
 })
+
+test('streaming: strips leaked reasoning preamble from assistant content deltas', async () => {
+  globalThis.fetch = (async () => {
+    const chunks = makeStreamChunks([
+      {
+        id: 'chatcmpl-1',
+        object: 'chat.completion.chunk',
+        model: 'gpt-5-mini',
+        choices: [
+          {
+            index: 0,
+            delta: {
+              role: 'assistant',
+              content:
+                'The user just said "hey" - a simple greeting. I should respond briefly and friendly.\n\nHey! How can I help you today?',
+            },
+            finish_reason: null,
+          },
+        ],
+      },
+      {
+        id: 'chatcmpl-1',
+        object: 'chat.completion.chunk',
+        model: 'gpt-5-mini',
+        choices: [
+          {
+            index: 0,
+            delta: {},
+            finish_reason: 'stop',
+          },
+        ],
+      },
+    ])
+
+    return makeSseResponse(chunks)
+  }) as FetchType
+
+  const client = createOpenAIShimClient({}) as OpenAIShimClient
+  const result = await client.beta.messages
+    .create({
+      model: 'gpt-5-mini',
+      system: 'test system',
+      messages: [{ role: 'user', content: 'hey' }],
+      max_tokens: 64,
+      stream: true,
+    })
+    .withResponse()
+
+  const textDeltas: string[] = []
+  for await (const event of result.data) {
+    const delta = (event as { delta?: { type?: string; text?: string } }).delta
+    if (delta?.type === 'text_delta' && typeof delta.text === 'string') {
+      textDeltas.push(delta.text)
+    }
+  }
+
+  expect(textDeltas).toEqual(['Hey! How can I help you today?'])
+})
+
+test('streaming: strips leaked reasoning preamble when split across multiple content chunks', async () => {
+  globalThis.fetch = (async () => {
+    const chunks = makeStreamChunks([
+      {
+        id: 'chatcmpl-1',
+        object: 'chat.completion.chunk',
+        model: 'gpt-5-mini',
+        choices: [
+          {
+            index: 0,
+            delta: {
+              role: 'assistant',
+              content: 'The user said "hey" - this is a simple greeting. ',
+            },
+            finish_reason: null,
+          },
+        ],
+      },
+      {
+        id: 'chatcmpl-1',
+        object: 'chat.completion.chunk',
+        model: 'gpt-5-mini',
+        choices: [
+          {
+            index: 0,
+            delta: {
+              content:
+                'I should respond in a friendly, concise way.\n\nHey! How can I help you today?',
+            },
+            finish_reason: null,
+          },
+        ],
+      },
+      {
+        id: 'chatcmpl-1',
+        object: 'chat.completion.chunk',
+        model: 'gpt-5-mini',
+        choices: [
+          {
+            index: 0,
+            delta: {},
+            finish_reason: 'stop',
+          },
+        ],
+      },
+    ])
+
+    return makeSseResponse(chunks)
+  }) as FetchType
+
+  const client = createOpenAIShimClient({}) as OpenAIShimClient
+
+  const result = await client.beta.messages
+    .create({
+      model: 'gpt-5-mini',
+      system: 'test system',
+      messages: [{ role: 'user', content: 'hey' }],
+      max_tokens: 64,
+      stream: true,
+    })
+    .withResponse()
+
+  const textDeltas: string[] = []
+  for await (const event of result.data) {
+    const delta = (event as { delta?: { type?: string; text?: string } }).delta
+    if (delta?.type === 'text_delta' && typeof delta.text === 'string') {
+      textDeltas.push(delta.text)
+    }
+  }
+
+  expect(textDeltas).toEqual(['Hey! How can I help you today?'])
+})

src/services/api/openaiShim.ts

@@ -15,9 +15,9 @@
  *   OPENAI_MODEL=gpt-4o              — default model override
  *   CODEX_API_KEY / ~/.codex/auth.json — Codex auth for codexplan/codexspark
  *
- * GitHub Models (models.github.ai), OpenAI-compatible:
+ * GitHub Copilot API (api.githubcopilot.com), OpenAI-compatible:
  *   CLAUDE_CODE_USE_GITHUB=1         — enable GitHub inference (no need for USE_OPENAI)
- *   GITHUB_TOKEN or GH_TOKEN         — PAT with models access (mapped to Bearer auth)
+ *   GITHUB_TOKEN or GH_TOKEN         — Copilot API token (mapped to Bearer auth)
  *   OPENAI_MODEL                     — optional; use github:copilot or openai/gpt-4.1 style IDs
  */
 
@@ -26,10 +26,17 @@ import { isEnvTruthy } from '../../utils/envUtils.js'
 import { resolveGeminiCredential } from '../../utils/geminiAuth.js'
 import { hydrateGeminiAccessTokenFromSecureStorage } from '../../utils/geminiCredentials.js'
 import { hydrateGithubModelsTokenFromSecureStorage } from '../../utils/githubModelsCredentials.js'
+import {
+  looksLikeLeakedReasoningPrefix,
+  shouldBufferPotentialReasoningPrefix,
+  stripLeakedReasoningPreamble,
+} from './reasoningLeakSanitizer.js'
 import {
   codexStreamToAnthropic,
   collectCodexCompletedResponse,
+  convertAnthropicMessagesToResponsesInput,
   convertCodexResponseToAnthropicMessage,
+  convertToolsToResponsesTools,
   performCodexRequest,
   type AnthropicStreamEvent,
   type AnthropicUsage,
@@ -39,6 +46,7 @@ import {
   isLocalProviderUrl,
   resolveCodexApiCredentials,
   resolveProviderRequest,
+  getGithubEndpointType,
 } from './providerConfig.js'
 import { sanitizeSchemaForOpenAICompat } from '../../utils/schemaSanitizer.js'
 import { redactSecretValueForDisplay } from '../../utils/providerProfile.js'
@@ -53,19 +61,56 @@ type SecretValueSource = Partial<{
   GEMINI_API_KEY: string
   GOOGLE_API_KEY: string
   GEMINI_ACCESS_TOKEN: string
+  MISTRAL_API_KEY: string
 }>
 
-const GITHUB_MODELS_DEFAULT_BASE = 'https://models.github.ai/inference'
-const GITHUB_API_VERSION = '2022-11-28'
+const GITHUB_COPILOT_BASE = 'https://api.githubcopilot.com'
 const GITHUB_429_MAX_RETRIES = 3
 const GITHUB_429_BASE_DELAY_SEC = 1
 const GITHUB_429_MAX_DELAY_SEC = 32
 const GEMINI_API_HOST = 'generativelanguage.googleapis.com'
 
+const COPILOT_HEADERS: Record<string, string> = {
+  'User-Agent': 'GitHubCopilotChat/0.26.7',
+  'Editor-Version': 'vscode/1.99.3',
+  'Editor-Plugin-Version': 'copilot-chat/0.26.7',
+  'Copilot-Integration-Id': 'vscode-chat',
+}
+
 function isGithubModelsMode(): boolean {
   return isEnvTruthy(process.env.CLAUDE_CODE_USE_GITHUB)
 }
 
+function isMistralMode(): boolean {
+  return isEnvTruthy(process.env.CLAUDE_CODE_USE_MISTRAL)
+}
+
+function filterAnthropicHeaders(
+  headers: Record<string, string> | undefined,
+): Record<string, string> {
+  if (!headers) return {}
+
+  const filtered: Record<string, string> = {}
+  for (const [key, value] of Object.entries(headers)) {
+    const lower = key.toLowerCase()
+    if (
+      lower.startsWith('x-anthropic') ||
+      lower.startsWith('anthropic-') ||
+      lower.startsWith('x-claude') ||
+      lower === 'x-app' ||
+      lower === 'x-client-app' ||
+      lower === 'authorization' ||
+      lower === 'x-api-key' ||
+      lower === 'api-key'
+    ) {
+      continue
+    }
+    filtered[key] = value
+  }
+
+  return filtered
+}
+
 function hasGeminiApiHost(baseUrl: string | undefined): boolean {
   if (!baseUrl) return false
 
@@ -412,11 +457,13 @@ function normalizeSchemaForOpenAI(
     record.properties = normalizedProps
 
     if (strict) {
-      // OpenAI strict mode requires every property to be listed in required[]
-      const allKeys = Object.keys(normalizedProps)
-      record.required = Array.from(new Set([...existingRequired, ...allKeys]))
-      // OpenAI strict mode requires additionalProperties: false on all object
-      // schemas — override unconditionally to ensure nested objects comply.
+      // Keep only the properties that were originally marked required in the schema.
+      // Adding every property to required[] (the previous behaviour) caused strict
+      // OpenAI-compatible providers (Groq, Azure, etc.) to reject tool calls because
+      // the model correctly omits optional arguments — but the provider treats them
+      // as missing required fields and returns a 400 / tool_use_failed error.
+      record.required = existingRequired.filter(k => k in normalizedProps)
+      // additionalProperties: false is still required by strict-mode providers.
       record.additionalProperties = false
     } else {
       // For Gemini: keep only existing required keys that are present in properties
@@ -522,11 +569,14 @@ function convertChunkUsage(
 ): Partial<AnthropicUsage> | undefined {
   if (!usage) return undefined
 
+  const cached = usage.prompt_tokens_details?.cached_tokens ?? 0
   return {
-    input_tokens: usage.prompt_tokens ?? 0,
+    // Subtract cached tokens: OpenAI includes them in prompt_tokens,
+    // but Anthropic convention treats input_tokens as non-cached only.
+    input_tokens: (usage.prompt_tokens ?? 0) - cached,
     output_tokens: usage.completion_tokens ?? 0,
     cache_creation_input_tokens: 0,
-    cache_read_input_tokens: usage.prompt_tokens_details?.cached_tokens ?? 0,
+    cache_read_input_tokens: cached,
   }
 }
 
@@ -577,6 +627,8 @@ async function* openaiStreamToAnthropic(
   let hasEmittedContentStart = false
   let hasEmittedThinkingStart = false
   let hasClosedThinking = false
+  let activeTextBuffer = ''
+  let textBufferMode: 'none' | 'pending' | 'strip' = 'none'
   let lastStopReason: 'tool_use' | 'max_tokens' | 'end_turn' | null = null
   let hasEmittedFinalUsage = false
   let hasProcessedFinishReason = false
@@ -607,6 +659,30 @@ async function* openaiStreamToAnthropic(
   const decoder = new TextDecoder()
   let buffer = ''
 
+  const closeActiveContentBlock = async function* () {
+    if (!hasEmittedContentStart) return
+
+    if (textBufferMode !== 'none') {
+      const sanitized = stripLeakedReasoningPreamble(activeTextBuffer)
+      if (sanitized) {
+        yield {
+          type: 'content_block_delta',
+          index: contentBlockIndex,
+          delta: { type: 'text_delta', text: sanitized },
+        }
+      }
+    }
+
+    yield {
+      type: 'content_block_stop',
+      index: contentBlockIndex,
+    }
+    contentBlockIndex++
+    hasEmittedContentStart = false
+    activeTextBuffer = ''
+    textBufferMode = 'none'
+  }
+
   try {
     while (true) {
       const { done, value } = await reader.read()
@@ -661,6 +737,7 @@ async function* openaiStreamToAnthropic(
             contentBlockIndex++
             hasClosedThinking = true
           }
+          activeTextBuffer += delta.content
           if (!hasEmittedContentStart) {
             yield {
               type: 'content_block_start',
@@ -669,6 +746,35 @@ async function* openaiStreamToAnthropic(
             }
             hasEmittedContentStart = true
           }
+
+          if (
+            textBufferMode === 'strip' ||
+            looksLikeLeakedReasoningPrefix(activeTextBuffer)
+          ) {
+            textBufferMode = 'strip'
+            continue
+          }
+
+          if (textBufferMode === 'pending') {
+            if (shouldBufferPotentialReasoningPrefix(activeTextBuffer)) {
+              continue
+            }
+            yield {
+              type: 'content_block_delta',
+              index: contentBlockIndex,
+              delta: {
+                type: 'text_delta',
+                text: activeTextBuffer,
+              },
+            }
+            textBufferMode = 'none'
+            continue
+          }
+
+          if (shouldBufferPotentialReasoningPrefix(activeTextBuffer)) {
+            textBufferMode = 'pending'
+            continue
+          }
           yield {
             type: 'content_block_delta',
             index: contentBlockIndex,
@@ -687,12 +793,7 @@ async function* openaiStreamToAnthropic(
                 hasClosedThinking = true
               }
               if (hasEmittedContentStart) {
-                yield {
-                  type: 'content_block_stop',
-                  index: contentBlockIndex,
-                }
-                contentBlockIndex++
-                hasEmittedContentStart = false
+                yield* closeActiveContentBlock()
               }
 
               const toolBlockIndex = contentBlockIndex
@@ -775,10 +876,7 @@ async function* openaiStreamToAnthropic(
           }
           // Close any open content blocks
           if (hasEmittedContentStart) {
-            yield {
-              type: 'content_block_stop',
-              index: contentBlockIndex,
-            }
+            yield* closeActiveContentBlock()
           }
           // Close active tool calls
           for (const [, tc] of activeToolCalls) {
@@ -925,7 +1023,7 @@ class OpenAIShimMessages {
   private providerOverride?: { model: string; baseURL: string; apiKey: string }
 
   constructor(defaultHeaders: Record<string, string>, reasoningEffort?: 'low' | 'medium' | 'high' | 'xhigh', providerOverride?: { model: string; baseURL: string; apiKey: string }) {
-    this.defaultHeaders = defaultHeaders
+    this.defaultHeaders = filterAnthropicHeaders(defaultHeaders)
     this.reasoningEffort = reasoningEffort
     this.providerOverride = providerOverride
   }
@@ -944,8 +1042,9 @@ class OpenAIShimMessages {
       httpResponse = response
 
       if (params.stream) {
+        const isResponsesStream = response.url?.includes('/responses')
         return new OpenAIShimStream(
-          request.transport === 'codex_responses'
+          (request.transport === 'codex_responses' || isResponsesStream)
             ? codexStreamToAnthropic(response, request.resolvedModel)
             : openaiStreamToAnthropic(response, request.resolvedModel),
         )
@@ -959,8 +1058,38 @@ class OpenAIShimMessages {
         )
       }
 
-      const data = await response.json()
-      return self._convertNonStreamingResponse(data, request.resolvedModel)
+      const isResponsesNonStream = response.url?.includes('/responses')
+      if (isResponsesNonStream || (request.transport === 'chat_completions' && isGithubModelsMode())) {
+        const contentType = response.headers.get('content-type') ?? ''
+        if (contentType.includes('application/json')) {
+          const parsed = await response.json() as Record<string, unknown>
+          if (
+            parsed &&
+            typeof parsed === 'object' &&
+            ('output' in parsed || 'incomplete_details' in parsed)
+          ) {
+            return convertCodexResponseToAnthropicMessage(
+              parsed,
+              request.resolvedModel,
+            )
+          }
+          return self._convertNonStreamingResponse(parsed, request.resolvedModel)
+        }
+      }
+
+      const contentType = response.headers.get('content-type') ?? ''
+      if (contentType.includes('application/json')) {
+        const data = await response.json()
+        return self._convertNonStreamingResponse(data, request.resolvedModel)
+      }
+
+      const textBody = await response.text().catch(() => '')
+      throw APIError.generate(
+        response.status,
+        undefined,
+        `OpenAI API error ${response.status}: unexpected response: ${textBody.slice(0, 500)}`,
+        response.headers as unknown as Headers,
+      )
     })()
 
       ; (promise as unknown as Record<string, unknown>).withResponse =
@@ -982,7 +1111,36 @@ class OpenAIShimMessages {
     params: ShimCreateParams,
     options?: { signal?: AbortSignal; headers?: Record<string, string> },
   ): Promise<Response> {
-    if (request.transport === 'codex_responses') {
+    const githubEndpointType = getGithubEndpointType(request.baseUrl)
+    const isGithubMode = isGithubModelsMode()
+    const isGithubWithCodexTransport = isGithubMode && request.transport === 'codex_responses'
+    const isGithubCopilotEndpoint = isGithubMode && githubEndpointType === 'copilot'
+
+    if (isGithubWithCodexTransport) {
+      const apiKey = this.providerOverride?.apiKey ?? process.env.OPENAI_API_KEY ?? ''
+      if (!apiKey) {
+        throw new Error(
+          'GitHub Copilot auth is required. Run /onboard-github to sign in.',
+        )
+      }
+
+      return performCodexRequest({
+        request,
+        credentials: {
+          apiKey,
+          source: 'env',
+        },
+        params,
+        defaultHeaders: {
+          ...this.defaultHeaders,
+          ...filterAnthropicHeaders(options?.headers),
+          ...COPILOT_HEADERS,
+        },
+        signal: options?.signal,
+      })
+    }
+
+    if (request.transport === 'codex_responses' && !isGithubMode) {
       const credentials = resolveCodexApiCredentials()
       if (!credentials.apiKey) {
         const authHint = credentials.authPath
@@ -1007,7 +1165,7 @@ class OpenAIShimMessages {
         params,
         defaultHeaders: {
           ...this.defaultHeaders,
-          ...(options?.headers ?? {}),
+          ...filterAnthropicHeaders(options?.headers),
         },
         signal: options?.signal,
       })
@@ -1034,6 +1192,7 @@ class OpenAIShimMessages {
       model: request.resolvedModel,
       messages: openaiMessages,
       stream: params.stream ?? false,
+      store: false,
     }
     // Convert max_tokens to max_completion_tokens for OpenAI API compatibility.
     // Azure OpenAI requires max_completion_tokens and does not accept max_tokens.
@@ -1056,11 +1215,22 @@ class OpenAIShimMessages {
     }
 
     const isGithub = isGithubModelsMode()
-    if (isGithub && body.max_completion_tokens !== undefined) {
+    const isMistral = isMistralMode()
+
+    const githubEndpointType = getGithubEndpointType(request.baseUrl)
+    const isGithubCopilot = isGithub && githubEndpointType === 'copilot'
+    const isGithubModels = isGithub && (githubEndpointType === 'models' || githubEndpointType === 'custom')
+
+    if ((isGithub || isMistral) && body.max_completion_tokens !== undefined) {
       body.max_tokens = body.max_completion_tokens
       delete body.max_completion_tokens
     }
 
+    // mistral also doesn't recognize body.store
+    if (isMistral) {
+      delete body.store
+    }
+
     if (params.temperature !== undefined) body.temperature = params.temperature
     if (params.top_p !== undefined) body.top_p = params.top_p
 
@@ -1095,12 +1265,11 @@ class OpenAIShimMessages {
     const headers: Record<string, string> = {
       'Content-Type': 'application/json',
       ...this.defaultHeaders,
-      ...(options?.headers ?? {}),
+      ...filterAnthropicHeaders(options?.headers),
     }
 
-    const isGemini = isGeminiMode()
-    const apiKey =
-      this.providerOverride?.apiKey ?? process.env.OPENAI_API_KEY ?? ''
+    const isGemini = isEnvTruthy(process.env.CLAUDE_CODE_USE_GEMINI)
+    const apiKey = this.providerOverride?.apiKey ?? process.env.OPENAI_API_KEY ?? ''
     // Detect Azure endpoints by hostname (not raw URL) to prevent bypass via
     // path segments like https://evil.com/cognitiveservices.azure.com/
     let isAzure = false
@@ -1121,15 +1290,17 @@ class OpenAIShimMessages {
       const geminiCredential = await resolveGeminiCredential(process.env)
       if (geminiCredential.kind !== 'none') {
         headers.Authorization = `Bearer ${geminiCredential.credential}`
-        if (geminiCredential.projectId) {
+        if (geminiCredential.kind !== 'api-key' && 'projectId' in geminiCredential && geminiCredential.projectId) {
           headers['x-goog-user-project'] = geminiCredential.projectId
         }
       }
     }
 
-    if (isGithub) {
-      headers.Accept = 'application/vnd.github.v3+json'
-      headers['X-GitHub-Api-Version'] = GITHUB_API_VERSION
+    if (isGithubCopilot) {
+      Object.assign(headers, COPILOT_HEADERS)
+    } else if (isGithubModels) {
+      headers['Accept'] = 'application/vnd.github+json'
+      headers['X-GitHub-Api-Version'] = '2022-11-28'
     }
 
     // Build the chat completions URL
@@ -1181,9 +1352,83 @@ class OpenAIShimMessages {
         await sleepMs(delaySec * 1000)
         continue
       }
+      // Read body exactly once here — Response body is a stream that can only
+      // be consumed a single time.
       const errorBody = await response.text().catch(() => 'unknown error')
       const rateHint =
         isGithub && response.status === 429 ? formatRetryAfterHint(response) : ''
+
+      // If GitHub Copilot returns error about /chat/completions,
+      // try the /responses endpoint (needed for GPT-5+ models)
+      if (isGithub && response.status === 400) {
+        if (errorBody.includes('/chat/completions') || errorBody.includes('not accessible')) {
+          const responsesUrl = `${request.baseUrl}/responses`
+          const responsesBody: Record<string, unknown> = {
+            model: request.resolvedModel,
+            input: convertAnthropicMessagesToResponsesInput(
+              params.messages as Array<{
+                role?: string
+                message?: { role?: string; content?: unknown }
+                content?: unknown
+              }>,
+            ),
+            stream: params.stream ?? false,
+            store: false,
+          }
+
+          if (!Array.isArray(responsesBody.input) || responsesBody.input.length === 0) {
+            responsesBody.input = [
+              {
+                type: 'message',
+                role: 'user',
+                content: [{ type: 'input_text', text: '' }],
+              },
+            ]
+          }
+
+          const systemText = convertSystemPrompt(params.system)
+          if (systemText) {
+            responsesBody.instructions = systemText
+          }
+
+          if (body.max_tokens !== undefined) {
+            responsesBody.max_output_tokens = body.max_tokens
+          }
+
+          if (params.tools && params.tools.length > 0) {
+            const convertedTools = convertToolsToResponsesTools(
+              params.tools as Array<{
+                name?: string
+                description?: string
+                input_schema?: Record<string, unknown>
+              }>,
+            )
+            if (convertedTools.length > 0) {
+              responsesBody.tools = convertedTools
+            }
+          }
+
+          const responsesResponse = await fetch(responsesUrl, {
+            method: 'POST',
+            headers,
+            body: JSON.stringify(responsesBody),
+            signal: options?.signal,
+          })
+          if (responsesResponse.ok) {
+            return responsesResponse
+          }
+          const responsesErrorBody = await responsesResponse.text().catch(() => 'unknown error')
+          let responsesErrorResponse: object | undefined
+          try { responsesErrorResponse = JSON.parse(responsesErrorBody) } catch { /* raw text */ }
+          throw APIError.generate(
+            responsesResponse.status,
+            responsesErrorResponse,
+            `OpenAI API error ${responsesResponse.status}: ${responsesErrorBody}`,
+            responsesResponse.headers,
+          )
+        }
+      }
+
       let errorResponse: object | undefined
       try { errorResponse = JSON.parse(errorBody) } catch { /* raw text */ }
       throw APIError.generate(
@@ -1233,9 +1478,9 @@ class OpenAIShimMessages {
     const choice = data.choices?.[0]
     const content: Array<Record<string, unknown>> = []
 
-    // Some reasoning models (e.g. GLM-5) put their reply in reasoning_content
-    // while content stays null — emit reasoning as a thinking block, then
-    // fall back to it for visible text if content is empty.
+    // Some reasoning models (e.g. GLM-5) put their chain-of-thought in
+    // reasoning_content while content stays null. Preserve it as a thinking
+    // block, but do not surface it as visible assistant text.
     const reasoningText = choice?.message?.reasoning_content
     if (typeof reasoningText === 'string' && reasoningText) {
       content.push({ type: 'thinking', thinking: reasoningText })
@@ -1243,9 +1488,12 @@ class OpenAIShimMessages {
     const rawContent =
       choice?.message?.content !== '' && choice?.message?.content != null
         ? choice?.message?.content
-        : choice?.message?.reasoning_content
+        : null
     if (typeof rawContent === 'string' && rawContent) {
-      content.push({ type: 'text', text: rawContent })
+      content.push({
+        type: 'text',
+        text: stripLeakedReasoningPreamble(rawContent),
+      })
     } else if (Array.isArray(rawContent) && rawContent.length > 0) {
       const parts: string[] = []
       for (const part of rawContent) {
@@ -1260,7 +1508,10 @@ class OpenAIShimMessages {
       }
       const joined = parts.join('\n')
       if (joined) {
-        content.push({ type: 'text', text: joined })
+        content.push({
+          type: 'text',
+          text: stripLeakedReasoningPreamble(joined),
+        })
       }
     }
 
@@ -1350,8 +1601,15 @@ export function createOpenAIShimClient(options: {
     if (process.env.GEMINI_MODEL && !process.env.OPENAI_MODEL) {
       process.env.OPENAI_MODEL = process.env.GEMINI_MODEL
     }
+  } else if (isEnvTruthy(process.env.CLAUDE_CODE_USE_MISTRAL)) {
+    process.env.OPENAI_BASE_URL =
+      process.env.MISTRAL_BASE_URL ?? 'https://api.mistral.ai/v1'
+    process.env.OPENAI_API_KEY = process.env.MISTRAL_API_KEY
+    if (process.env.MISTRAL_MODEL) {
+      process.env.OPENAI_MODEL = process.env.MISTRAL_MODEL
+    }
   } else if (isEnvTruthy(process.env.CLAUDE_CODE_USE_GITHUB)) {
-    process.env.OPENAI_BASE_URL ??= GITHUB_MODELS_DEFAULT_BASE
+    process.env.OPENAI_BASE_URL ??= GITHUB_COPILOT_BASE
     process.env.OPENAI_API_KEY ??=
       process.env.GITHUB_TOKEN ?? process.env.GH_TOKEN ?? ''
   }

src/services/api/providerConfig.github.test.ts

@@ -23,6 +23,9 @@ test.each([
   ['github:gpt-4o', 'gpt-4o'],
   ['gpt-4o', 'gpt-4o'],
   ['github:copilot?reasoning=high', DEFAULT_GITHUB_MODELS_API_MODEL],
+  // normalizeGithubModelsApiModel preserves provider prefix for models.github.ai compatibility
+  ['github:openai/gpt-4.1', 'openai/gpt-4.1'],
+  ['openai/gpt-4.1', 'openai/gpt-4.1'],
 ] as const)('normalizeGithubModelsApiModel(%s) -> %s', (input, expected) => {
   expect(normalizeGithubModelsApiModel(input)).toBe(expected)
 })
@@ -34,6 +37,20 @@ test('resolveProviderRequest applies GitHub normalization when CLAUDE_CODE_USE_G
   expect(r.transport).toBe('chat_completions')
 })
 
+test('resolveProviderRequest routes GitHub GPT-5 codex models to responses transport', () => {
+  process.env.CLAUDE_CODE_USE_GITHUB = '1'
+  const r = resolveProviderRequest({ model: 'gpt-5.3-codex' })
+  expect(r.resolvedModel).toBe('gpt-5.3-codex')
+  expect(r.transport).toBe('codex_responses')
+})
+
+test('resolveProviderRequest keeps gpt-5-mini on chat_completions for GitHub', () => {
+  process.env.CLAUDE_CODE_USE_GITHUB = '1'
+  const r = resolveProviderRequest({ model: 'gpt-5-mini' })
+  expect(r.resolvedModel).toBe('gpt-5-mini')
+  expect(r.transport).toBe('chat_completions')
+})
+
 test('resolveProviderRequest leaves model unchanged without GitHub flag', () => {
   delete process.env.CLAUDE_CODE_USE_GITHUB
   const r = resolveProviderRequest({ model: 'github:gpt-4o' })

src/services/api/providerConfig.ts

@@ -7,8 +7,9 @@ import { isEnvTruthy } from '../../utils/envUtils.js'
 
 export const DEFAULT_OPENAI_BASE_URL = 'https://api.openai.com/v1'
 export const DEFAULT_CODEX_BASE_URL = 'https://chatgpt.com/backend-api/codex'
-/** Default GitHub Models API model when user selects copilot / github:copilot */
-export const DEFAULT_GITHUB_MODELS_API_MODEL = 'openai/gpt-4.1'
+export const DEFAULT_MISTRAL_BASE_URL = 'https://api.mistral.ai/v1'
+/** Default GitHub Copilot API model when user selects copilot / github:copilot */
+export const DEFAULT_GITHUB_MODELS_API_MODEL = 'gpt-4o'
 
 const CODEX_ALIAS_MODELS: Record<
   string,
@@ -227,6 +228,21 @@ export function shouldUseCodexTransport(
   return isCodexBaseUrl(explicitBaseUrl) || (!explicitBaseUrl && isCodexAlias(model))
 }
 
+function shouldUseGithubResponsesApi(model: string): boolean {
+  const normalized = model.trim().toLowerCase()
+
+  // Codex-branded models require /responses.
+  if (normalized.includes('codex')) return true
+
+  // GPT-5+ models use /responses, except gpt-5-mini.
+  const match = /^gpt-(\d+)/.exec(normalized)
+  if (!match) return false
+  const major = Number(match[1])
+  if (major < 5) return false
+  if (normalized.startsWith('gpt-5-mini')) return false
+  return true
+}
+
 export function isLocalProviderUrl(baseUrl: string | undefined): boolean {
   if (!baseUrl) return false
   try {
@@ -280,19 +296,61 @@ export function isCodexBaseUrl(baseUrl: string | undefined): boolean {
 }
 
 /**
- * Normalize user model string for GitHub Models inference (models.github.ai).
- * Mirrors runtime devsper `github._normalize_model_id`.
+ * Normalize user model string for GitHub Copilot API inference.
+ * Mirrors how Copilot resolves model IDs internally.
  */
-export function normalizeGithubModelsApiModel(requestedModel: string): string {
+export function normalizeGithubCopilotModel(requestedModel: string): string {
   const noQuery = requestedModel.split('?', 1)[0] ?? requestedModel
   const segment =
     noQuery.includes(':') ? noQuery.split(':', 2)[1]!.trim() : noQuery.trim()
   if (!segment || segment.toLowerCase() === 'copilot') {
     return DEFAULT_GITHUB_MODELS_API_MODEL
   }
+  // Strip provider prefix if present (e.g., "openai/gpt-4o" -> "gpt-4o")
+  const slashIndex = segment.indexOf('/')
+  if (slashIndex !== -1) {
+    return segment.slice(slashIndex + 1)
+  }
   return segment
 }
 
+/**
+ * Normalize user model string for GitHub Models API inference.
+ * Only normalizes the default alias, preserves provider-qualified models.
+ */
+export function normalizeGithubModelsApiModel(requestedModel: string): string {
+  const noQuery = requestedModel.split('?', 1)[0] ?? requestedModel
+  const segment =
+    noQuery.includes(':') ? noQuery.split(':', 2)[1]!.trim() : noQuery.trim()
+  // Only normalize the default alias for GitHub Models
+  if (!segment || segment.toLowerCase() === 'copilot') {
+    return DEFAULT_GITHUB_MODELS_API_MODEL
+  }
+  // Preserve provider prefix for GitHub Models (e.g., "openai/gpt-4.1" stays as-is)
+  return segment
+}
+
+export const GITHUB_COPILOT_BASE_URL = 'https://api.githubcopilot.com'
+export const GITHUB_MODELS_BASE_URL = 'https://models.github.ai/inference'
+
+export function getGithubEndpointType(
+  baseUrl: string | undefined,
+): 'copilot' | 'models' | 'custom' {
+  if (!baseUrl) return 'copilot'
+  try {
+    const hostname = new URL(baseUrl).hostname.toLowerCase()
+    if (hostname === 'api.githubcopilot.com') {
+      return 'copilot'
+    }
+    if (hostname === 'models.github.ai' || hostname.endsWith('.github.ai')) {
+      return 'models'
+    }
+    return 'custom'
+  } catch {
+    return 'copilot'
+  }
+}
+
 export function resolveProviderRequest(options?: {
   model?: string
   baseUrl?: string
@@ -300,41 +358,64 @@ export function resolveProviderRequest(options?: {
   reasoningEffortOverride?: ReasoningEffort
 }): ResolvedProviderRequest {
   const isGithubMode = isEnvTruthy(process.env.CLAUDE_CODE_USE_GITHUB)
+  const isMistralMode = isEnvTruthy(process.env.CLAUDE_CODE_USE_MISTRAL)
   const requestedModel =
     options?.model?.trim() ||
-    process.env.OPENAI_MODEL?.trim() ||
+    (isMistralMode
+      ? process.env.MISTRAL_MODEL?.trim()
+      : process.env.OPENAI_MODEL?.trim()) ||
     options?.fallbackModel?.trim() ||
     (isGithubMode ? 'github:copilot' : 'gpt-4o')
   const descriptor = parseModelDescriptor(requestedModel)
   const rawBaseUrl =
     asEnvUrl(options?.baseUrl) ??
-    asEnvUrl(process.env.OPENAI_BASE_URL) ??
+    asEnvUrl(
+      isMistralMode ? (process.env.MISTRAL_BASE_URL ?? DEFAULT_MISTRAL_BASE_URL) : process.env.OPENAI_BASE_URL,
+    ) ??
     asEnvUrl(process.env.OPENAI_API_BASE)
+
+  const githubEndpointType = isGithubMode
+    ? getGithubEndpointType(rawBaseUrl)
+    : 'custom'
+  const isGithubCopilot = isGithubMode && githubEndpointType === 'copilot'
+  const isGithubModels = isGithubMode && githubEndpointType === 'models'
+  const isGithubCustom = isGithubMode && githubEndpointType === 'custom'
+
+  const githubResolvedModel = isGithubMode
+    ? normalizeGithubModelsApiModel(requestedModel)
+    : requestedModel
+
   const transport: ProviderTransport =
-    shouldUseCodexTransport(requestedModel, rawBaseUrl)
+    shouldUseCodexTransport(requestedModel, rawBaseUrl) ||
+      (isGithubCopilot && shouldUseGithubResponsesApi(githubResolvedModel))
       ? 'codex_responses'
       : 'chat_completions'
 
-  const resolvedModel =
-    transport === 'chat_completions' &&
-    isEnvTruthy(process.env.CLAUDE_CODE_USE_GITHUB)
-      ? normalizeGithubModelsApiModel(requestedModel)
-      : descriptor.baseModel
+  // For GitHub Copilot API, normalize to real model ID (e.g., "github:copilot" -> "gpt-4o")
+  // For GitHub Models/custom endpoints:
+  //   - Normalize default alias (github:copilot -> gpt-4o)
+  //   - Preserve provider-qualified models (openai/gpt-4.1 stays as-is)
+  const resolvedModel = isGithubCopilot
+    ? normalizeGithubCopilotModel(descriptor.baseModel)
+    : (isGithubModels || isGithubCustom
+      ? normalizeGithubModelsApiModel(descriptor.baseModel)
+      : descriptor.baseModel)
 
   const reasoning = options?.reasoningEffortOverride
     ? { effort: options.reasoningEffortOverride }
     : descriptor.reasoning
 
-
   return {
     transport,
     requestedModel,
     resolvedModel,
     baseUrl:
       (rawBaseUrl ??
-        (transport === 'codex_responses'
-          ? DEFAULT_CODEX_BASE_URL
-          : DEFAULT_OPENAI_BASE_URL)
+        (isGithubCopilot && transport === 'codex_responses'
+          ? GITHUB_COPILOT_BASE_URL
+          : (isGithubMode
+            ? GITHUB_COPILOT_BASE_URL
+            : DEFAULT_OPENAI_BASE_URL))
       ).replace(/\/+$/, ''),
     reasoning,
   }
@@ -343,6 +424,7 @@ export function resolveProviderRequest(options?: {
 export function getAdditionalModelOptionsCacheScope(): string | null {
   if (!isEnvTruthy(process.env.CLAUDE_CODE_USE_OPENAI)) {
     if (!isEnvTruthy(process.env.CLAUDE_CODE_USE_GEMINI) &&
+        !isEnvTruthy(process.env.CLAUDE_CODE_USE_MISTRAL) &&
         !isEnvTruthy(process.env.CLAUDE_CODE_USE_GITHUB) &&
         !isEnvTruthy(process.env.CLAUDE_CODE_USE_BEDROCK) &&
         !isEnvTruthy(process.env.CLAUDE_CODE_USE_VERTEX) &&

src/services/api/reasoningLeakSanitizer.test.ts

@@ -0,0 +1,46 @@
+import { describe, expect, test } from 'bun:test'
+
+import {
+  looksLikeLeakedReasoningPrefix,
+  shouldBufferPotentialReasoningPrefix,
+  stripLeakedReasoningPreamble,
+} from './reasoningLeakSanitizer.ts'
+
+describe('reasoning leak sanitizer', () => {
+  test('strips explicit internal reasoning preambles', () => {
+    const text =
+      'The user just said "hey" - a simple greeting. I should respond briefly and friendly.\n\nHey! How can I help you today?'
+
+    expect(looksLikeLeakedReasoningPrefix(text)).toBe(true)
+    expect(stripLeakedReasoningPreamble(text)).toBe(
+      'Hey! How can I help you today?',
+    )
+  })
+
+  test('does not strip normal user-facing advice that mentions "the user should"', () => {
+    const text =
+      'The user should reset their password immediately.\n\nHere are the steps...'
+
+    expect(looksLikeLeakedReasoningPrefix(text)).toBe(false)
+    expect(shouldBufferPotentialReasoningPrefix(text)).toBe(false)
+    expect(stripLeakedReasoningPreamble(text)).toBe(text)
+  })
+
+  test('does not strip legitimate first-person advice about responding to an incident', () => {
+    const text =
+      'I need to respond to this security incident immediately. The system is compromised.\n\nHere are the remediation steps...'
+
+    expect(looksLikeLeakedReasoningPrefix(text)).toBe(false)
+    expect(shouldBufferPotentialReasoningPrefix(text)).toBe(false)
+    expect(stripLeakedReasoningPreamble(text)).toBe(text)
+  })
+
+  test('does not strip legitimate first-person advice about answering a support ticket', () => {
+    const text =
+      'I need to answer the support ticket before end of day. The customer is waiting.\n\nHere is the response I drafted...'
+
+    expect(looksLikeLeakedReasoningPrefix(text)).toBe(false)
+    expect(shouldBufferPotentialReasoningPrefix(text)).toBe(false)
+    expect(stripLeakedReasoningPreamble(text)).toBe(text)
+  })
+})

src/services/api/reasoningLeakSanitizer.ts

@@ -0,0 +1,54 @@
+const EXPLICIT_REASONING_START_RE =
+  /^\s*(i should\b|i need to\b|let me think\b|the task\b|the request\b)/i
+
+const EXPLICIT_REASONING_META_RE =
+  /\b(user|request|question|prompt|message|task|greeting|small talk|briefly|friendly|concise)\b/i
+
+const USER_META_START_RE =
+  /^\s*the user\s+(just\s+)?(said|asked|is asking|wants|wanted|mentioned|seems|appears)\b/i
+
+const USER_REASONING_RE =
+  /^\s*the user\s+(just\s+)?(said|asked|is asking|wants|wanted|mentioned|seems|appears)\b[\s\S]*\b(i should|i need to|let me think|respond|reply|answer|greeting|small talk|briefly|friendly|concise)\b/i
+
+export function shouldBufferPotentialReasoningPrefix(text: string): boolean {
+  const normalized = text.trim()
+  if (!normalized) return false
+
+  if (looksLikeLeakedReasoningPrefix(normalized)) {
+    return true
+  }
+
+  const hasParagraphBoundary = /\n\s*\n/.test(normalized)
+  if (hasParagraphBoundary) {
+    return false
+  }
+
+  return (
+    EXPLICIT_REASONING_START_RE.test(normalized) ||
+    USER_META_START_RE.test(normalized)
+  )
+}
+
+export function looksLikeLeakedReasoningPrefix(text: string): boolean {
+  const normalized = text.trim()
+  if (!normalized) return false
+  return (
+    (EXPLICIT_REASONING_START_RE.test(normalized) &&
+      EXPLICIT_REASONING_META_RE.test(normalized)) ||
+    USER_REASONING_RE.test(normalized)
+  )
+}
+
+export function stripLeakedReasoningPreamble(text: string): string {
+  const normalized = text.replace(/\r\n/g, '\n')
+  const parts = normalized.split(/\n\s*\n/)
+  if (parts.length < 2) return text
+
+  const first = parts[0]?.trim() ?? ''
+  if (!looksLikeLeakedReasoningPrefix(first)) {
+    return text
+  }
+
+  const remainder = parts.slice(1).join('\n\n').trim()
+  return remainder || text
+}

src/services/api/withRetry.test.ts

@@ -1,4 +1,4 @@
-import { afterEach, describe, expect, mock, test } from 'bun:test'
+import { afterEach, beforeEach, describe, expect, mock, test } from 'bun:test'
 import { APIError } from '@anthropic-ai/sdk'
 
 // Helper to build a mock APIError with specific headers
@@ -15,15 +15,27 @@ function makeError(headers: Record<string, string>): APIError {
 
 // Save/restore env vars between tests
 const originalEnv = { ...process.env }
+
+const envKeys = [
+  'CLAUDE_CODE_USE_OPENAI',
+  'CLAUDE_CODE_USE_GEMINI',
+  'CLAUDE_CODE_USE_GITHUB',
+  'CLAUDE_CODE_USE_BEDROCK',
+  'CLAUDE_CODE_USE_VERTEX',
+  'CLAUDE_CODE_USE_FOUNDRY',
+  'OPENAI_MODEL',
+  'OPENAI_BASE_URL',
+  'OPENAI_API_BASE',
+] as const
+
+beforeEach(() => {
+  for (const key of envKeys) {
+    delete process.env[key]
+  }
+})
+
 afterEach(() => {
-  for (const key of [
-    'CLAUDE_CODE_USE_OPENAI',
-    'CLAUDE_CODE_USE_GEMINI',
-    'CLAUDE_CODE_USE_GITHUB',
-    'CLAUDE_CODE_USE_BEDROCK',
-    'CLAUDE_CODE_USE_VERTEX',
-    'CLAUDE_CODE_USE_FOUNDRY',
-  ]) {
+  for (const key of envKeys) {
     if (originalEnv[key] === undefined) delete process.env[key]
     else process.env[key] = originalEnv[key]
   }

src/services/autoFix/autoFixConfig.test.ts

@@ -0,0 +1,106 @@
+import { describe, expect, test } from 'bun:test'
+import { AutoFixConfigSchema, getAutoFixConfig, type AutoFixConfig } from './autoFixConfig.js'
+
+describe('AutoFixConfigSchema', () => {
+  test('parses valid full config', () => {
+    const input = {
+      enabled: true,
+      lint: 'eslint . --fix',
+      test: 'bun test',
+      maxRetries: 3,
+      timeout: 30000,
+    }
+    const result = AutoFixConfigSchema.safeParse(input)
+    expect(result.success).toBe(true)
+    if (result.success) {
+      expect(result.data.enabled).toBe(true)
+      expect(result.data.lint).toBe('eslint . --fix')
+      expect(result.data.test).toBe('bun test')
+      expect(result.data.maxRetries).toBe(3)
+      expect(result.data.timeout).toBe(30000)
+    }
+  })
+
+  test('parses minimal config with defaults', () => {
+    const input = { enabled: true, lint: 'eslint .' }
+    const result = AutoFixConfigSchema.safeParse(input)
+    expect(result.success).toBe(true)
+    if (result.success) {
+      expect(result.data.maxRetries).toBe(3)
+      expect(result.data.timeout).toBe(30000)
+      expect(result.data.test).toBeUndefined()
+    }
+  })
+
+  test('rejects config with enabled but no lint or test', () => {
+    const input = { enabled: true }
+    const result = AutoFixConfigSchema.safeParse(input)
+    expect(result.success).toBe(false)
+  })
+
+  test('accepts disabled config without commands', () => {
+    const input = { enabled: false }
+    const result = AutoFixConfigSchema.safeParse(input)
+    expect(result.success).toBe(true)
+  })
+
+  test('rejects negative maxRetries', () => {
+    const input = { enabled: true, lint: 'eslint .', maxRetries: -1 }
+    const result = AutoFixConfigSchema.safeParse(input)
+    expect(result.success).toBe(false)
+  })
+
+  test('rejects maxRetries above 10', () => {
+    const input = { enabled: true, lint: 'eslint .', maxRetries: 11 }
+    const result = AutoFixConfigSchema.safeParse(input)
+    expect(result.success).toBe(false)
+  })
+})
+
+describe('getAutoFixConfig', () => {
+  test('returns null when settings have no autoFix', () => {
+    const result = getAutoFixConfig(undefined)
+    expect(result).toBeNull()
+  })
+
+  test('returns null when autoFix is disabled', () => {
+    const result = getAutoFixConfig({ enabled: false })
+    expect(result).toBeNull()
+  })
+
+  test('returns parsed config when valid and enabled', () => {
+    const result = getAutoFixConfig({ enabled: true, lint: 'eslint .' })
+    expect(result).not.toBeNull()
+    expect(result!.enabled).toBe(true)
+    expect(result!.lint).toBe('eslint .')
+  })
+})
+
+describe('SettingsSchema autoFix integration', () => {
+  test('SettingsSchema accepts autoFix field', async () => {
+    const { SettingsSchema } = await import('../../utils/settings/types.js')
+    const settings = {
+      autoFix: {
+        enabled: true,
+        lint: 'eslint .',
+        test: 'bun test',
+        maxRetries: 3,
+        timeout: 30000,
+      },
+    }
+    const result = SettingsSchema().safeParse(settings)
+    expect(result.success).toBe(true)
+  })
+
+  test('SettingsSchema rejects invalid autoFix', async () => {
+    const { SettingsSchema } = await import('../../utils/settings/types.js')
+    const settings = {
+      autoFix: {
+        enabled: true,
+        // missing lint and test - should fail refine
+      },
+    }
+    const result = SettingsSchema().safeParse(settings)
+    expect(result.success).toBe(false)
+  })
+})

src/services/autoFix/autoFixConfig.ts

@@ -0,0 +1,52 @@
+import { z } from 'zod/v4'
+
+export const AutoFixConfigSchema = z
+  .object({
+    enabled: z.boolean().describe('Whether auto-fix is enabled'),
+    lint: z
+      .string()
+      .optional()
+      .describe('Lint command to run after file edits (e.g. "eslint . --fix")'),
+    test: z
+      .string()
+      .optional()
+      .describe('Test command to run after file edits (e.g. "bun test")'),
+    maxRetries: z
+      .number()
+      .int()
+      .min(0)
+      .max(10)
+      .default(3)
+      .describe('Maximum number of auto-fix retry attempts (default: 3)'),
+    timeout: z
+      .number()
+      .int()
+      .min(1000)
+      .max(300000)
+      .default(30000)
+      .describe('Timeout in ms for each lint/test command (default: 30000)'),
+  })
+  .refine(
+    data => !data.enabled || data.lint !== undefined || data.test !== undefined,
+    {
+      message: 'At least one of "lint" or "test" must be set when enabled',
+    },
+  )
+
+export type AutoFixConfig = z.infer<typeof AutoFixConfigSchema>
+
+export function getAutoFixConfig(
+  rawConfig: unknown,
+): AutoFixConfig | null {
+  if (!rawConfig || typeof rawConfig !== 'object') {
+    return null
+  }
+  const parsed = AutoFixConfigSchema.safeParse(rawConfig)
+  if (!parsed.success) {
+    return null
+  }
+  if (!parsed.data.enabled) {
+    return null
+  }
+  return parsed.data
+}

src/services/autoFix/autoFixHook.test.ts

@@ -0,0 +1,63 @@
+import { describe, expect, test } from 'bun:test'
+import {
+  shouldRunAutoFix,
+  buildAutoFixContext,
+} from './autoFixHook.js'
+
+describe('shouldRunAutoFix', () => {
+  test('returns true for file_edit tool when autoFix enabled', () => {
+    const config = { enabled: true, lint: 'eslint .', maxRetries: 3, timeout: 30000 }
+    expect(shouldRunAutoFix('file_edit', config)).toBe(true)
+  })
+
+  test('returns true for file_write tool when autoFix enabled', () => {
+    const config = { enabled: true, lint: 'eslint .', maxRetries: 3, timeout: 30000 }
+    expect(shouldRunAutoFix('file_write', config)).toBe(true)
+  })
+
+  test('returns false for bash tool', () => {
+    const config = { enabled: true, lint: 'eslint .', maxRetries: 3, timeout: 30000 }
+    expect(shouldRunAutoFix('bash', config)).toBe(false)
+  })
+
+  test('returns false for file_read tool', () => {
+    const config = { enabled: true, lint: 'eslint .', maxRetries: 3, timeout: 30000 }
+    expect(shouldRunAutoFix('file_read', config)).toBe(false)
+  })
+
+  test('returns false when config is null', () => {
+    expect(shouldRunAutoFix('file_edit', null)).toBe(false)
+  })
+})
+
+describe('buildAutoFixContext', () => {
+  test('formats lint errors as AI-readable context', () => {
+    const context = buildAutoFixContext({
+      hasErrors: true,
+      lintOutput: 'src/foo.ts:10:5 error no-unused-vars',
+      lintExitCode: 1,
+      errorSummary: 'Lint errors (exit code 1):\nsrc/foo.ts:10:5 error no-unused-vars',
+    })
+    expect(context).toContain('AUTO-FIX')
+    expect(context).toContain('no-unused-vars')
+    expect(context).toContain('Please fix')
+  })
+
+  test('returns null when no errors', () => {
+    const context = buildAutoFixContext({
+      hasErrors: false,
+    })
+    expect(context).toBeNull()
+  })
+
+  test('formats test failures as AI-readable context', () => {
+    const context = buildAutoFixContext({
+      hasErrors: true,
+      testOutput: 'FAIL src/foo.test.ts\n  expected true, got false',
+      testExitCode: 1,
+      errorSummary: 'Test failures (exit code 1):\nFAIL src/foo.test.ts',
+    })
+    expect(context).toContain('AUTO-FIX')
+    expect(context).toContain('FAIL')
+  })
+})

src/services/autoFix/autoFixHook.ts

@@ -0,0 +1,25 @@
+import type { AutoFixConfig } from './autoFixConfig.js'
+import type { AutoFixResult } from './autoFixRunner.js'
+
+const AUTO_FIX_TOOLS = new Set(['file_edit', 'file_write'])
+
+export function shouldRunAutoFix(
+  toolName: string,
+  config: AutoFixConfig | null,
+): boolean {
+  if (!config) return false
+  return AUTO_FIX_TOOLS.has(toolName)
+}
+
+export function buildAutoFixContext(result: AutoFixResult): string | null {
+  if (!result.hasErrors || !result.errorSummary) return null
+
+  return (
+    `<auto_fix_feedback>\n` +
+    `AUTO-FIX: The file you just edited has errors. Please fix them:\n\n` +
+    `${result.errorSummary}\n\n` +
+    `Please fix these errors in the files you just edited. ` +
+    `Do not ask the user — just apply the fix.\n` +
+    `</auto_fix_feedback>`
+  )
+}

src/services/autoFix/autoFixIntegration.test.ts

@@ -0,0 +1,48 @@
+import { describe, expect, test } from 'bun:test'
+import { getAutoFixConfig } from './autoFixConfig.js'
+import { shouldRunAutoFix, buildAutoFixContext } from './autoFixHook.js'
+import { runAutoFixCheck } from './autoFixRunner.js'
+
+describe('autoFix end-to-end flow', () => {
+  test('full flow: config → shouldRun → check → context', async () => {
+    const config = getAutoFixConfig({
+      enabled: true,
+      lint: 'echo "error: unused" && exit 1',
+      maxRetries: 2,
+      timeout: 5000,
+    })
+    expect(config).not.toBeNull()
+    expect(shouldRunAutoFix('file_edit', config)).toBe(true)
+
+    const result = await runAutoFixCheck({
+      lint: config!.lint,
+      test: config!.test,
+      timeout: config!.timeout,
+
+      cwd: '/tmp',
+    })
+    expect(result.hasErrors).toBe(true)
+
+    const context = buildAutoFixContext(result)
+    expect(context).not.toBeNull()
+    expect(context).toContain('AUTO-FIX')
+    expect(context).toContain('unused')
+  })
+
+  test('full flow: no errors = no context', async () => {
+    const config = getAutoFixConfig({
+      enabled: true,
+      lint: 'echo "all clean"',
+      timeout: 5000,
+    })
+    const result = await runAutoFixCheck({
+      lint: config!.lint,
+      timeout: config!.timeout,
+
+      cwd: '/tmp',
+    })
+    expect(result.hasErrors).toBe(false)
+    const context = buildAutoFixContext(result)
+    expect(context).toBeNull()
+  })
+})

src/services/autoFix/autoFixRunner.test.ts

@@ -0,0 +1,103 @@
+import { describe, expect, test } from 'bun:test'
+import {
+  runAutoFixCheck,
+  type AutoFixResult,
+  type AutoFixCheckOptions,
+} from './autoFixRunner.js'
+
+describe('runAutoFixCheck', () => {
+  test('returns success when lint command exits 0', async () => {
+    const result = await runAutoFixCheck({
+      lint: 'echo "all clean"',
+      timeout: 5000,
+
+      cwd: '/tmp',
+    })
+    expect(result.hasErrors).toBe(false)
+    expect(result.lintOutput).toContain('all clean')
+    expect(result.testOutput).toBeUndefined()
+  })
+
+  test('returns errors when lint command exits non-zero', async () => {
+    const result = await runAutoFixCheck({
+      lint: 'echo "error: unused var" && exit 1',
+      timeout: 5000,
+
+      cwd: '/tmp',
+    })
+    expect(result.hasErrors).toBe(true)
+    expect(result.lintOutput).toContain('unused var')
+    expect(result.lintExitCode).toBe(1)
+  })
+
+  test('returns errors when test command exits non-zero', async () => {
+    const result = await runAutoFixCheck({
+      test: 'echo "FAIL test_foo" && exit 1',
+      timeout: 5000,
+
+      cwd: '/tmp',
+    })
+    expect(result.hasErrors).toBe(true)
+    expect(result.testOutput).toContain('FAIL test_foo')
+    expect(result.testExitCode).toBe(1)
+  })
+
+  test('runs both lint and test commands', async () => {
+    const result = await runAutoFixCheck({
+      lint: 'echo "lint ok"',
+      test: 'echo "test ok"',
+      timeout: 5000,
+
+      cwd: '/tmp',
+    })
+    expect(result.hasErrors).toBe(false)
+    expect(result.lintOutput).toContain('lint ok')
+    expect(result.testOutput).toContain('test ok')
+  })
+
+  test('skips test if lint fails', async () => {
+    const result = await runAutoFixCheck({
+      lint: 'echo "lint error" && exit 1',
+      test: 'echo "should not run"',
+      timeout: 5000,
+
+      cwd: '/tmp',
+    })
+    expect(result.hasErrors).toBe(true)
+    expect(result.lintOutput).toContain('lint error')
+    expect(result.testOutput).toBeUndefined()
+  })
+
+  test('handles timeout gracefully', async () => {
+    const result = await runAutoFixCheck({
+      lint: 'sleep 10',
+      timeout: 100,
+
+      cwd: '/tmp',
+    })
+    expect(result.hasErrors).toBe(true)
+    expect(result.timedOut).toBe(true)
+  })
+
+  test('returns success with no commands configured', async () => {
+    const result = await runAutoFixCheck({
+      timeout: 5000,
+
+      cwd: '/tmp',
+    })
+    expect(result.hasErrors).toBe(false)
+  })
+
+  test('formats error summary for AI consumption', async () => {
+    const result = await runAutoFixCheck({
+      lint: 'echo "src/foo.ts:10:5 error no-unused-vars" && exit 1',
+      timeout: 5000,
+
+      cwd: '/tmp',
+    })
+    expect(result.hasErrors).toBe(true)
+    const summary = result.errorSummary
+    expect(summary).toContain('Lint errors')
+    expect(summary).toContain('no-unused-vars')
+  })
+})

src/services/autoFix/autoFixRunner.ts

@@ -0,0 +1,169 @@
+import { spawn } from 'child_process'
+
+export interface AutoFixCheckOptions {
+  lint?: string
+  test?: string
+  timeout: number
+  cwd: string
+  signal?: AbortSignal
+}
+
+export interface AutoFixResult {
+  hasErrors: boolean
+  lintOutput?: string
+  lintExitCode?: number
+  testOutput?: string
+  testExitCode?: number
+  timedOut?: boolean
+  errorSummary?: string
+}
+
+async function runCommand(
+  command: string,
+  cwd: string,
+  timeout: number,
+  signal?: AbortSignal,
+): Promise<{ stdout: string; stderr: string; exitCode: number; timedOut: boolean }> {
+  return new Promise((resolve) => {
+    if (signal?.aborted) {
+      resolve({ stdout: '', stderr: 'Aborted', exitCode: 1, timedOut: false })
+      return
+    }
+
+    let timedOut = false
+    let stdout = ''
+    let stderr = ''
+
+    const isWindows = process.platform === 'win32'
+    const proc = spawn(command, [], {
+      cwd,
+      env: { ...process.env },
+      shell: true,
+      windowsHide: true,
+      // On Unix, create a process group so we can kill child processes on timeout/abort
+      detached: !isWindows,
+    })
+
+    const killTree = () => {
+      try {
+        if (!isWindows && proc.pid) {
+          // Kill the entire process group
+          process.kill(-proc.pid, 'SIGTERM')
+        } else {
+          proc.kill('SIGTERM')
+        }
+      } catch {
+        // Process may have already exited
+      }
+    }
+
+    const onAbort = () => {
+      killTree()
+    }
+    signal?.addEventListener('abort', onAbort, { once: true })
+
+    proc.stdout?.on('data', (data: Buffer) => {
+      stdout += data.toString()
+    })
+    proc.stderr?.on('data', (data: Buffer) => {
+      stderr += data.toString()
+    })
+
+    const timer = setTimeout(() => {
+      timedOut = true
+      killTree()
+    }, timeout)
+
+    proc.on('close', (code) => {
+      clearTimeout(timer)
+      signal?.removeEventListener('abort', onAbort)
+      resolve({
+        stdout: stdout.slice(0, 10000),
+        stderr: stderr.slice(0, 10000),
+        exitCode: code ?? 1,
+        timedOut,
+      })
+    })
+
+    proc.on('error', () => {
+      clearTimeout(timer)
+      signal?.removeEventListener('abort', onAbort)
+      resolve({
+        stdout,
+        stderr: stderr || 'Command failed to start',
+        exitCode: 1,
+        timedOut: false,
+      })
+    })
+  })
+}
+
+function buildErrorSummary(result: AutoFixResult): string | undefined {
+  if (!result.hasErrors) return undefined
+  const parts: string[] = []
+
+  if (result.timedOut) {
+    parts.push('Command timed out.')
+  }
+  if (result.lintExitCode !== undefined && result.lintExitCode !== 0) {
+    parts.push(`Lint errors (exit code ${result.lintExitCode}):\n${result.lintOutput ?? ''}`)
+  }
+  if (result.testExitCode !== undefined && result.testExitCode !== 0) {
+    parts.push(`Test failures (exit code ${result.testExitCode}):\n${result.testOutput ?? ''}`)
+  }
+
+  return parts.join('\n\n')
+}
+
+export async function runAutoFixCheck(
+  options: AutoFixCheckOptions,
+): Promise<AutoFixResult> {
+  const { lint, test, timeout, cwd, signal } = options
+
+  if (!lint && !test) {
+    return { hasErrors: false }
+  }
+
+  if (signal?.aborted) {
+    return { hasErrors: false }
+  }
+
+  const result: AutoFixResult = { hasErrors: false }
+
+  // Run lint first
+  if (lint) {
+    const lintResult = await runCommand(lint, cwd, timeout, signal)
+    result.lintOutput = (lintResult.stdout + '\n' + lintResult.stderr).trim()
+    result.lintExitCode = lintResult.exitCode
+
+    if (lintResult.timedOut) {
+      result.hasErrors = true
+      result.timedOut = true
+      result.errorSummary = buildErrorSummary(result)
+      return result
+    }
+
+    if (lintResult.exitCode !== 0) {
+      result.hasErrors = true
+      result.errorSummary = buildErrorSummary(result)
+      return result
+    }
+  }
+
+  // Run tests only if lint passed (or no lint configured)
+  if (test) {
+    const testResult = await runCommand(test, cwd, timeout, signal)
+    result.testOutput = (testResult.stdout + '\n' + testResult.stderr).trim()
+    result.testExitCode = testResult.exitCode
+
+    if (testResult.timedOut) {
+      result.hasErrors = true
+      result.timedOut = true
+    } else if (testResult.exitCode !== 0) {
+      result.hasErrors = true
+    }
+  }
+
+  result.errorSummary = buildErrorSummary(result)
+  return result
+}

src/services/github/deviceFlow.test.ts

@@ -1,4 +1,4 @@
-import { afterEach, describe, expect, mock, test } from 'bun:test'
+import { afterEach, beforeEach, describe, expect, mock, test } from 'bun:test'
 
 import {
   DEFAULT_GITHUB_DEVICE_SCOPE,
@@ -7,14 +7,26 @@ import {
   requestDeviceCode,
 } from './deviceFlow.js'
 
+async function importFreshModule() {
+  mock.restore()
+  return import(`./deviceFlow.ts?ts=${Date.now()}-${Math.random()}`)
+}
+
 describe('requestDeviceCode', () => {
   const originalFetch = globalThis.fetch
 
+  beforeEach(() => {
+    mock.restore()
+    globalThis.fetch = originalFetch
+  })
+
   afterEach(() => {
     globalThis.fetch = originalFetch
   })
 
   test('parses successful device code response', async () => {
+    const { requestDeviceCode } = await importFreshModule()
+
     globalThis.fetch = mock(() =>
       Promise.resolve(
         new Response(
@@ -42,6 +54,9 @@ describe('requestDeviceCode', () => {
   })
 
   test('throws on HTTP error', async () => {
+    const { requestDeviceCode, GitHubDeviceFlowError } =
+      await importFreshModule()
+
     globalThis.fetch = mock(() =>
       Promise.resolve(new Response('bad', { status: 500 })),
     )
@@ -134,6 +149,8 @@ describe('pollAccessToken', () => {
   })
 
   test('returns token when GitHub responds with access_token immediately', async () => {
+    const { pollAccessToken } = await importFreshModule()
+
     let calls = 0
     globalThis.fetch = mock(() => {
       calls++
@@ -153,6 +170,8 @@ describe('pollAccessToken', () => {
   })
 
   test('throws on access_denied', async () => {
+    const { pollAccessToken } = await importFreshModule()
+
     globalThis.fetch = mock(() =>
       Promise.resolve(
         new Response(JSON.stringify({ error: 'access_denied' }), {
@@ -168,3 +187,62 @@ describe('pollAccessToken', () => {
     ).rejects.toThrow(/denied/)
   })
 })
+
+describe('exchangeForCopilotToken', () => {
+  const originalFetch = globalThis.fetch
+
+  afterEach(() => {
+    globalThis.fetch = originalFetch
+  })
+
+  test('parses successful Copilot token response', async () => {
+    const { exchangeForCopilotToken } = await importFreshModule()
+
+    globalThis.fetch = mock(() =>
+      Promise.resolve(
+        new Response(
+          JSON.stringify({
+            token: 'copilot-token-xyz',
+            expires_at: 1700000000,
+            refresh_in: 3600,
+            endpoints: {
+              api: 'https://api.githubcopilot.com',
+            },
+          }),
+          { status: 200 },
+        ),
+      ),
+    )
+
+    const result = await exchangeForCopilotToken('oauth-token', globalThis.fetch)
+    expect(result.token).toBe('copilot-token-xyz')
+    expect(result.expires_at).toBe(1700000000)
+    expect(result.refresh_in).toBe(3600)
+    expect(result.endpoints.api).toBe('https://api.githubcopilot.com')
+  })
+
+  test('throws on HTTP error', async () => {
+    const { exchangeForCopilotToken, GitHubDeviceFlowError } =
+      await importFreshModule()
+
+    globalThis.fetch = mock(() =>
+      Promise.resolve(new Response('unauthorized', { status: 401 })),
+    )
+    await expect(
+      exchangeForCopilotToken('bad-token', globalThis.fetch),
+    ).rejects.toThrow(GitHubDeviceFlowError)
+  })
+
+  test('throws on malformed response', async () => {
+    const { exchangeForCopilotToken } = await importFreshModule()
+
+    globalThis.fetch = mock(() =>
+      Promise.resolve(
+        new Response(JSON.stringify({ invalid: 'data' }), { status: 200 }),
+      ),
+    )
+    await expect(
+      exchangeForCopilotToken('oauth-token', globalThis.fetch),
+    ).rejects.toThrow(/Malformed/)
+  })
+})

src/services/github/deviceFlow.ts

@@ -1,19 +1,35 @@
 /**
  * GitHub OAuth device flow for CLI login (https://docs.github.com/en/apps/oauth-apps/building-oauth-apps/authorizing-oauth-apps#device-flow).
+ * Uses GitHub Copilot's official OAuth app for device authentication.
  */
 
 import { execFileNoThrow } from '../../utils/execFileNoThrow.js'
 
-export const DEFAULT_GITHUB_DEVICE_FLOW_CLIENT_ID = 'Ov23liXjWSSui6QIahPl'
+export const DEFAULT_GITHUB_DEVICE_FLOW_CLIENT_ID = 'Iv1.b507a08c87ecfe98'
 
 export const GITHUB_DEVICE_CODE_URL = 'https://github.com/login/device/code'
 export const GITHUB_DEVICE_ACCESS_TOKEN_URL =
   'https://github.com/login/oauth/access_token'
+export const COPILOT_TOKEN_URL = 'https://api.github.com/copilot_internal/v2/token'
 
-// OAuth app device flow does not accept the GitHub Models permission token
-// scope (models:read). Use an OAuth-safe default.
-const OAUTH_SAFE_GITHUB_DEVICE_SCOPE = 'read:user'
-export const DEFAULT_GITHUB_DEVICE_SCOPE = OAUTH_SAFE_GITHUB_DEVICE_SCOPE
+/** Only read:user scope — required for Copilot OAuth */
+export const DEFAULT_GITHUB_DEVICE_SCOPE = 'read:user'
+
+export const COPILOT_HEADERS: Record<string, string> = {
+  'User-Agent': 'GitHubCopilotChat/0.26.7',
+  'Editor-Version': 'vscode/1.99.3',
+  'Editor-Plugin-Version': 'copilot-chat/0.26.7',
+  'Copilot-Integration-Id': 'vscode-chat',
+}
+
+export type CopilotTokenResponse = {
+  token: string
+  expires_at: number
+  refresh_in: number
+  endpoints: {
+    api: string
+  }
+}
 
 export class GitHubDeviceFlowError extends Error {
   constructor(message: string) {
@@ -30,6 +46,8 @@ export type DeviceCodeResult = {
   interval: number
 }
 
+type FetchLike = (input: RequestInfo | URL, init?: RequestInit) => Promise<Response>
+
 export function getGithubDeviceFlowClientId(): string {
   return (
     process.env.GITHUB_DEVICE_FLOW_CLIENT_ID?.trim() ||
@@ -44,21 +62,21 @@ function sleep(ms: number): Promise<void> {
 export async function requestDeviceCode(options?: {
   clientId?: string
   scope?: string
-  fetchImpl?: typeof fetch
+  fetchImpl?: FetchLike
 }): Promise<DeviceCodeResult> {
   const clientId = options?.clientId ?? getGithubDeviceFlowClientId()
   if (!clientId) {
     throw new GitHubDeviceFlowError(
-      'No OAuth client ID: set GITHUB_DEVICE_FLOW_CLIENT_ID or paste a PAT instead.',
+      'No OAuth client ID: set GITHUB_DEVICE_FLOW_CLIENT_ID.',
     )
   }
   const fetchFn = options?.fetchImpl ?? fetch
   const requestedScope =
     options?.scope?.trim() || DEFAULT_GITHUB_DEVICE_SCOPE
   const scopesToTry =
-    requestedScope === OAUTH_SAFE_GITHUB_DEVICE_SCOPE
+    requestedScope === DEFAULT_GITHUB_DEVICE_SCOPE
       ? [requestedScope]
-      : [requestedScope, OAUTH_SAFE_GITHUB_DEVICE_SCOPE]
+      : [requestedScope, DEFAULT_GITHUB_DEVICE_SCOPE]
 
   let lastError = 'Device code request failed.'
 
@@ -77,7 +95,7 @@ export async function requestDeviceCode(options?: {
       lastError = `Device code request failed: ${res.status} ${text}`
       const isInvalidScope = /invalid_scope/i.test(text)
       const canRetryWithFallback =
-        scope !== OAUTH_SAFE_GITHUB_DEVICE_SCOPE && isInvalidScope
+        scope !== DEFAULT_GITHUB_DEVICE_SCOPE && isInvalidScope
       if (canRetryWithFallback) {
         continue
       }
@@ -114,7 +132,7 @@ export type PollOptions = {
   clientId?: string
   initialInterval?: number
   timeoutSeconds?: number
-  fetchImpl?: typeof fetch
+  fetchImpl?: FetchLike
 }
 
 export async function pollAccessToken(
@@ -197,3 +215,49 @@ export async function openVerificationUri(uri: string): Promise<void> {
     // User can open the URL manually
   }
 }
+
+/**
+ * Exchange an OAuth access token for a Copilot API token.
+ * The OAuth token alone cannot be used with the Copilot API endpoint.
+ */
+export async function exchangeForCopilotToken(
+  oauthToken: string,
+  fetchImpl?: FetchLike,
+): Promise<CopilotTokenResponse> {
+  const fetchFn = fetchImpl ?? fetch
+  const res = await fetchFn(COPILOT_TOKEN_URL, {
+    method: 'GET',
+    headers: {
+      Accept: 'application/json',
+      Authorization: `Bearer ${oauthToken}`,
+      ...COPILOT_HEADERS,
+    },
+  })
+  if (!res.ok) {
+    const text = await res.text().catch(() => '')
+    throw new GitHubDeviceFlowError(
+      `Copilot token exchange failed: ${res.status} ${text}`,
+    )
+  }
+  const data = (await res.json()) as Record<string, unknown>
+  const token = data.token
+  const expires_at = data.expires_at
+  const refresh_in = data.refresh_in
+  const endpoints = data.endpoints
+  if (
+    typeof token !== 'string' ||
+    typeof expires_at !== 'number' ||
+    typeof refresh_in !== 'number' ||
+    !endpoints ||
+    typeof endpoints !== 'object' ||
+    typeof (endpoints as Record<string, unknown>).api !== 'string'
+  ) {
+    throw new GitHubDeviceFlowError('Malformed Copilot token response')
+  }
+  return {
+    token,
+    expires_at,
+    refresh_in,
+    endpoints: endpoints as { api: string },
+  }
+}

src/services/mockRateLimits.ts

@@ -1,6 +1,11 @@
 // Mock rate limits for testing [internal-only]
 // The external build keeps this module as a stable no-op surface so imports
 // remain valid without exposing internal-only rate-limit simulation behavior.
+// This allows testing various rate limit scenarios without hitting actual limits
+//
+// WARNING: This is for internal testing/demo purposes only!
+// The mock headers may not exactly match the API specification or real-world behavior.
+// Always validate against actual API responses before relying on this for production features.
 
 import { setMockBillingAccessOverride } from '../utils/billing.js'
 import type { OverageDisabledReason } from './claudeAiLimits.js'

src/services/tips/tipRegistry.ts

@@ -645,7 +645,7 @@ const internalOnlyTips: Tip[] =
         {
           id: 'skillify',
           content: async () =>
-            '[internal] Turn repeatable workflows into reusable project skills when they keep recurring',
+            '[internal] Use /skillify to turn repeatable recurring workflows into reusable project skills',
           cooldownSessions: 15,
           isRelevant: async () => true,
         },

src/services/tools/toolHooks.ts

@@ -29,6 +29,13 @@ import {
 } from '../../utils/permissions/PermissionResult.js'
 import { checkRuleBasedPermissions } from '../../utils/permissions/permissions.js'
 import { formatError } from '../../utils/toolErrors.js'
+import { getAutoFixConfig } from '../autoFix/autoFixConfig.js'
+import { shouldRunAutoFix, buildAutoFixContext } from '../autoFix/autoFixHook.js'
+import { runAutoFixCheck } from '../autoFix/autoFixRunner.js'
+
+// Track auto-fix retry count per query chain to enforce maxRetries cap.
+// Key: queryChainId (or 'default'), Value: number of auto-fix attempts used.
+const autoFixRetryCount = new Map<string, number>()
 import { isMcpTool } from '../mcp/utils.js'
 import type { McpServerType, MessageUpdateLazy } from './toolExecution.js'
 
@@ -185,6 +192,65 @@ export async function* runPostToolUseHooks<Input extends AnyObject, Output>(
         }
       }
     }
+
+    // Auto-fix: run lint/test if configured for this tool
+    const autoFixSettings = toolUseContext.getAppState().settings
+    const autoFixConfig = getAutoFixConfig(
+      autoFixSettings && typeof autoFixSettings === 'object' && 'autoFix' in autoFixSettings
+        ? (autoFixSettings as Record<string, unknown>).autoFix
+        : undefined,
+    )
+    if (shouldRunAutoFix(tool.name, autoFixConfig) && autoFixConfig) {
+      // Enforce maxRetries cap to prevent unbounded auto-fix loops.
+      // Uses queryChainId to scope the counter to the current conversation turn.
+      const chainKey = (toolUseContext.queryTracking?.chainId as string) ?? 'default'
+      const currentRetries = autoFixRetryCount.get(chainKey) ?? 0
+
+      if (currentRetries >= autoFixConfig.maxRetries) {
+        // Max retries reached — skip auto-fix and let the user know
+        yield {
+          message: createAttachmentMessage({
+            type: 'hook_additional_context',
+            content: [
+              `<auto_fix_feedback>\nAUTO-FIX: Maximum retry limit (${autoFixConfig.maxRetries}) reached. ` +
+              `Skipping further auto-fix attempts. Please review the errors manually.\n</auto_fix_feedback>`,
+            ],
+            hookName: `AutoFix:${tool.name}`,
+            toolUseID,
+            hookEvent: 'PostToolUse',
+          }),
+        }
+      } else {
+        try {
+          const cwd = toolUseContext.options?.cwd ?? process.cwd()
+          const autoFixResult = await runAutoFixCheck({
+            lint: autoFixConfig.lint,
+            test: autoFixConfig.test,
+            timeout: autoFixConfig.timeout,
+            cwd,
+            signal: toolUseContext.abortController.signal,
+          })
+          const autoFixContext = buildAutoFixContext(autoFixResult)
+          if (autoFixContext) {
+            autoFixRetryCount.set(chainKey, currentRetries + 1)
+            yield {
+              message: createAttachmentMessage({
+                type: 'hook_additional_context',
+                content: [autoFixContext],
+                hookName: `AutoFix:${tool.name}`,
+                toolUseID,
+                hookEvent: 'PostToolUse',
+              }),
+            }
+          } else {
+            // Lint/test passed — reset the retry counter for this chain
+            autoFixRetryCount.delete(chainKey)
+          }
+        } catch (autoFixError) {
+          logError(autoFixError)
+        }
+      }
+    }
   } catch (error) {
     logError(error)
   }

src/services/wiki/indexBuilder.ts

@@ -0,0 +1,68 @@
+import { readdir, readFile, writeFile } from 'fs/promises'
+import { basename, relative } from 'path'
+import { getWikiPaths } from './paths.js'
+
+async function listMarkdownFiles(dir: string): Promise<string[]> {
+  const entries = await readdir(dir, { withFileTypes: true })
+  const files: string[] = []
+
+  for (const entry of entries) {
+    const fullPath = `${dir}/${entry.name}`
+    if (entry.isDirectory()) {
+      files.push(...(await listMarkdownFiles(fullPath)))
+    } else if (entry.isFile() && entry.name.endsWith('.md')) {
+      files.push(fullPath)
+    }
+  }
+
+  return files.sort()
+}
+
+async function getPageTitle(path: string): Promise<string> {
+  const content = await readFile(path, 'utf8')
+  const titleLine = content
+    .split('\n')
+    .map(line => line.trim())
+    .find(line => line.startsWith('# '))
+
+  return titleLine ? titleLine.replace(/^#\s+/, '') : basename(path, '.md')
+}
+
+export async function rebuildWikiIndex(cwd: string): Promise<void> {
+  const paths = getWikiPaths(cwd)
+  const pageFiles = await listMarkdownFiles(paths.pagesDir)
+  const sourceFiles = await listMarkdownFiles(paths.sourcesDir)
+
+  const pageLinks = await Promise.all(
+    pageFiles.map(async file => {
+      const rel = relative(paths.root, file)
+      const title = await getPageTitle(file)
+      return `- [${title}](./${rel.replace(/\\/g, '/')})`
+    }),
+  )
+
+  const sourceLinks = sourceFiles.map(file => {
+    const rel = relative(paths.root, file).replace(/\\/g, '/')
+    const title = basename(file, '.md')
+    return `- [${title}](./${rel})`
+  })
+
+  const content = `# ${basename(cwd)} Wiki
+
+This wiki is maintained by OpenClaude as a durable project knowledge layer.
+
+## Core Pages
+
+${pageLinks.length > 0 ? pageLinks.join('\n') : '- No pages yet'}
+
+## Sources
+
+${sourceLinks.length > 0 ? sourceLinks.join('\n') : '- No sources yet'}
+
+## Recent Updates
+
+- See [log.md](./log.md)
+`
+
+  await writeFile(paths.indexFile, content, 'utf8')
+}

src/services/wiki/ingest.test.ts

@@ -0,0 +1,48 @@
+import { afterEach, expect, test } from 'bun:test'
+import { mkdtemp, readFile, rm, writeFile } from 'fs/promises'
+import { tmpdir } from 'os'
+import { join } from 'path'
+import { ingestLocalWikiSource } from './ingest.js'
+import { getWikiPaths } from './paths.js'
+
+const tempDirs: string[] = []
+
+afterEach(async () => {
+  await Promise.all(
+    tempDirs.splice(0).map(dir => rm(dir, { recursive: true, force: true })),
+  )
+})
+
+async function makeProjectDir(): Promise<string> {
+  const dir = await mkdtemp(join(tmpdir(), 'openclaude-wiki-ingest-'))
+  tempDirs.push(dir)
+  return dir
+}
+
+test('ingestLocalWikiSource creates a source note and updates log/index', async () => {
+  const cwd = await makeProjectDir()
+  const sourcePath = join(cwd, 'notes.md')
+  await writeFile(
+    sourcePath,
+    '# Design Notes\n\nThis subsystem coordinates provider routing and session state.\nIt should be documented for future contributors.\n',
+    'utf8',
+  )
+
+  const result = await ingestLocalWikiSource(cwd, 'notes.md')
+  const paths = getWikiPaths(cwd)
+
+  expect(result.sourceFile).toBe('notes.md')
+  expect(result.title).toBe('Design Notes')
+  expect(result.sourceNote.startsWith('.openclaude/wiki/sources/')).toBe(true)
+
+  const sourceNote = await readFile(join(cwd, result.sourceNote), 'utf8')
+  expect(sourceNote).toContain('# Design Notes')
+  expect(sourceNote).toContain('Path: `notes.md`')
+
+  const log = await readFile(paths.logFile, 'utf8')
+  expect(log).toContain('Ingested `notes.md`')
+
+  const index = await readFile(paths.indexFile, 'utf8')
+  expect(index).toContain('./sources/')
+  expect(index).toContain(result.sourceNote.replace('.openclaude/wiki/', './'))
+})

src/services/wiki/ingest.ts

@@ -0,0 +1,93 @@
+import { appendFile, readFile, stat, writeFile } from 'fs/promises'
+import { basename, extname, isAbsolute, relative, resolve } from 'path'
+import { initializeWiki } from './init.js'
+import { rebuildWikiIndex } from './indexBuilder.js'
+import { getWikiPaths } from './paths.js'
+import type { WikiIngestResult } from './types.js'
+import {
+  extractTitleFromText,
+  sanitizeWikiSlug,
+  summarizeText,
+} from './utils.js'
+
+function buildSourceNote(params: {
+  title: string
+  sourcePath: string
+  ingestedAt: string
+  summary: string
+  excerpt: string
+}): string {
+  const { title, sourcePath, ingestedAt, summary, excerpt } = params
+
+  return `# ${title}
+
+## Source
+
+- Path: \`${sourcePath}\`
+- Ingested at: ${ingestedAt}
+
+## Summary
+
+${summary}
+
+## Excerpt
+
+\`\`\`
+${excerpt}
+\`\`\`
+
+## Linked Pages
+
+- [Architecture](../pages/architecture.md)
+`
+}
+
+function buildLogEntry(sourcePath: string, title: string, ingestedAt: string): string {
+  return `- ${ingestedAt}: Ingested \`${sourcePath}\` into source note "${title}"`
+}
+
+export async function ingestLocalWikiSource(
+  cwd: string,
+  rawPath: string,
+): Promise<WikiIngestResult> {
+  await initializeWiki(cwd)
+
+  const resolvedPath = isAbsolute(rawPath) ? rawPath : resolve(cwd, rawPath)
+  const fileInfo = await stat(resolvedPath)
+  if (!fileInfo.isFile()) {
+    throw new Error(`Not a file: ${resolvedPath}`)
+  }
+
+  const content = await readFile(resolvedPath, 'utf8')
+  const relSourcePath = relative(cwd, resolvedPath).replace(/\\/g, '/')
+  const ingestedAt = new Date().toISOString()
+  const baseName = basename(resolvedPath, extname(resolvedPath))
+  const title = extractTitleFromText(baseName, content)
+  const summary = summarizeText(content)
+  const excerpt = content.split('\n').slice(0, 20).join('\n').trim()
+  const slug = sanitizeWikiSlug(`${baseName}-${Date.now()}`) || `source-${Date.now()}`
+
+  const paths = getWikiPaths(cwd)
+  const sourceNotePath = `${paths.sourcesDir}/${slug}.md`
+
+  await writeFile(
+    sourceNotePath,
+    buildSourceNote({
+      title,
+      sourcePath: relSourcePath,
+      ingestedAt,
+      summary,
+      excerpt,
+    }),
+    'utf8',
+  )
+  await appendFile(paths.logFile, `${buildLogEntry(relSourcePath, title, ingestedAt)}\n`, 'utf8')
+  await rebuildWikiIndex(cwd)
+
+  return {
+    sourceFile: relSourcePath,
+    sourceNote: relative(cwd, sourceNotePath).replace(/\\/g, '/'),
+    summary,
+    title,
+  }
+}

src/services/wiki/init.test.ts

@@ -0,0 +1,54 @@
+import { afterEach, expect, test } from 'bun:test'
+import { mkdtemp, readFile, rm } from 'fs/promises'
+import { tmpdir } from 'os'
+import { join } from 'path'
+import { initializeWiki } from './init.js'
+import { getWikiPaths } from './paths.js'
+
+const tempDirs: string[] = []
+
+afterEach(async () => {
+  await Promise.all(
+    tempDirs.splice(0).map(dir => rm(dir, { recursive: true, force: true })),
+  )
+})
+
+async function makeProjectDir(): Promise<string> {
+  const dir = await mkdtemp(join(tmpdir(), 'openclaude-wiki-init-'))
+  tempDirs.push(dir)
+  return dir
+}
+
+test('initializeWiki creates the expected wiki scaffold', async () => {
+  const cwd = await makeProjectDir()
+  const result = await initializeWiki(cwd)
+  const paths = getWikiPaths(cwd)
+
+  expect(result.alreadyExisted).toBe(false)
+  expect(result.createdFiles).toEqual([
+    '.openclaude/wiki/schema.md',
+    '.openclaude/wiki/index.md',
+    '.openclaude/wiki/log.md',
+    '.openclaude/wiki/pages/architecture.md',
+  ])
+  expect(await readFile(paths.schemaFile, 'utf8')).toContain(
+    '# OpenClaude Wiki Schema',
+  )
+  expect(await readFile(paths.indexFile, 'utf8')).toContain('Wiki')
+  expect(await readFile(paths.logFile, 'utf8')).toContain(
+    'Wiki initialized by OpenClaude',
+  )
+  expect(await readFile(join(paths.pagesDir, 'architecture.md'), 'utf8')).toContain(
+    '# Architecture',
+  )
+})
+
+test('initializeWiki is idempotent and preserves existing files', async () => {
+  const cwd = await makeProjectDir()
+
+  await initializeWiki(cwd)
+  const second = await initializeWiki(cwd)
+
+  expect(second.alreadyExisted).toBe(true)
+  expect(second.createdFiles).toEqual([])
+})

src/services/wiki/init.ts

@@ -0,0 +1,140 @@
+import { mkdir, writeFile } from 'fs/promises'
+import { basename, relative } from 'path'
+import { getWikiPaths } from './paths.js'
+import type { WikiInitResult } from './types.js'
+
+function buildSchemaTemplate(projectName: string): string {
+  return `# OpenClaude Wiki Schema
+
+This wiki stores durable, human-readable project knowledge for ${projectName}.
+
+## Goals
+
+- Keep useful project knowledge in markdown, not only in chat history
+- Prefer synthesized facts over raw copy-paste
+- Keep source attribution explicit
+- Make pages easy for both humans and agents to update
+
+## Structure
+
+- \`index.md\`: top-level navigation and major topics
+- \`log.md\`: append-only update log
+- \`pages/\`: durable topic and architecture pages
+- \`sources/\`: source ingestion notes and summaries
+
+## Page Rules
+
+- Keep pages focused on one topic
+- Use stable headings such as:
+  - \`## Summary\`
+  - \`## Key Facts\`
+  - \`## Relationships\`
+  - \`## Open Questions\`
+  - \`## Sources\`
+- Add or update facts only when they are grounded in project files or explicit source notes
+- Prefer editing an existing page over creating duplicates
+`
+}
+
+function buildIndexTemplate(projectName: string): string {
+  return `# ${projectName} Wiki
+
+This wiki is maintained by OpenClaude as a durable project knowledge layer.
+
+## Core Pages
+
+- [Architecture](./pages/architecture.md)
+
+## Sources
+
+- Source notes live in [sources/](./sources/)
+
+## Recent Updates
+
+- See [log.md](./log.md)
+`
+}
+
+function buildLogTemplate(timestamp: string): string {
+  return `# Wiki Update Log
+
+- ${timestamp}: Wiki initialized by OpenClaude
+`
+}
+
+function buildArchitectureTemplate(projectName: string): string {
+  return `# Architecture
+
+## Summary
+
+High-level architecture notes for ${projectName}.
+
+## Key Facts
+
+- This page is the starting point for durable architecture knowledge.
+
+## Relationships
+
+- Link this page to major subsystems as the wiki grows.
+
+## Open Questions
+
+- What are the most important runtime subsystems?
+- Which files best represent the system architecture?
+
+## Sources
+
+- Wiki bootstrap
+`
+}
+
+async function ensureFile(
+  filePath: string,
+  content: string,
+  createdFiles: string[],
+): Promise<void> {
+  try {
+    await writeFile(filePath, content, { encoding: 'utf8', flag: 'wx' })
+    createdFiles.push(filePath)
+  } catch (error: unknown) {
+    if (
+      typeof error === 'object' &&
+      error !== null &&
+      'code' in error &&
+      error.code === 'EEXIST'
+    ) {
+      return
+    }
+    throw error
+  }
+}
+
+export async function initializeWiki(cwd: string): Promise<WikiInitResult> {
+  const paths = getWikiPaths(cwd)
+  const createdDirectories: string[] = []
+  const createdFiles: string[] = []
+
+  for (const dir of [paths.root, paths.pagesDir, paths.sourcesDir]) {
+    await mkdir(dir, { recursive: true })
+    createdDirectories.push(dir)
+  }
+
+  const projectName = basename(cwd)
+  const timestamp = new Date().toISOString()
+
+  await ensureFile(paths.schemaFile, buildSchemaTemplate(projectName), createdFiles)
+  await ensureFile(paths.indexFile, buildIndexTemplate(projectName), createdFiles)
+  await ensureFile(paths.logFile, buildLogTemplate(timestamp), createdFiles)
+  await ensureFile(
+    `${paths.pagesDir}/architecture.md`,
+    buildArchitectureTemplate(projectName),
+    createdFiles,
+  )
+
+  return {
+    root: paths.root,
+    createdFiles: createdFiles.map(file => relative(cwd, file)),
+    createdDirectories: createdDirectories.map(dir => relative(cwd, dir)),
+    alreadyExisted: createdFiles.length === 0,
+  }
+}

src/services/wiki/paths.ts

@@ -0,0 +1,18 @@
+import { join } from 'path'
+import type { WikiPaths } from './types.js'
+
+export const OPENCLAUDE_DIRNAME = '.openclaude'
+export const WIKI_DIRNAME = 'wiki'
+
+export function getWikiPaths(cwd: string): WikiPaths {
+  const root = join(cwd, OPENCLAUDE_DIRNAME, WIKI_DIRNAME)
+
+  return {
+    root,
+    pagesDir: join(root, 'pages'),
+    sourcesDir: join(root, 'sources'),
+    schemaFile: join(root, 'schema.md'),
+    indexFile: join(root, 'index.md'),
+    logFile: join(root, 'log.md'),
+  }
+}

src/services/wiki/status.test.ts

@@ -0,0 +1,55 @@
+import { afterEach, expect, test } from 'bun:test'
+import { mkdtemp, mkdir, rm, writeFile } from 'fs/promises'
+import { tmpdir } from 'os'
+import { join } from 'path'
+import { initializeWiki } from './init.js'
+import { getWikiPaths } from './paths.js'
+import { getWikiStatus } from './status.js'
+
+const tempDirs: string[] = []
+
+afterEach(async () => {
+  await Promise.all(
+    tempDirs.splice(0).map(dir => rm(dir, { recursive: true, force: true })),
+  )
+})
+
+async function makeProjectDir(): Promise<string> {
+  const dir = await mkdtemp(join(tmpdir(), 'openclaude-wiki-status-'))
+  tempDirs.push(dir)
+  return dir
+}
+
+test('getWikiStatus reports uninitialized wiki state', async () => {
+  const cwd = await makeProjectDir()
+  const status = await getWikiStatus(cwd)
+
+  expect(status.initialized).toBe(false)
+  expect(status.pageCount).toBe(0)
+  expect(status.sourceCount).toBe(0)
+  expect(status.lastUpdatedAt).toBeNull()
+})
+
+test('getWikiStatus counts pages and sources for initialized wiki', async () => {
+  const cwd = await makeProjectDir()
+  await initializeWiki(cwd)
+  const paths = getWikiPaths(cwd)
+
+  await writeFile(join(paths.pagesDir, 'commands.md'), '# Commands\n', 'utf8')
+  await mkdir(join(paths.sourcesDir, 'external'), { recursive: true })
+  await writeFile(
+    join(paths.sourcesDir, 'external', 'spec.md'),
+    '# Spec\n',
+    'utf8',
+  )
+
+  const status = await getWikiStatus(cwd)
+
+  expect(status.initialized).toBe(true)
+  expect(status.pageCount).toBe(2)
+  expect(status.sourceCount).toBe(1)
+  expect(status.hasSchema).toBe(true)
+  expect(status.hasIndex).toBe(true)
+  expect(status.hasLog).toBe(true)
+  expect(status.lastUpdatedAt).not.toBeNull()
+})

src/services/wiki/status.ts

@@ -0,0 +1,82 @@
+import { readdir, stat } from 'fs/promises'
+import { getWikiPaths } from './paths.js'
+import type { WikiStatus } from './types.js'
+
+async function pathExists(path: string): Promise<boolean> {
+  try {
+    await stat(path)
+    return true
+  } catch {
+    return false
+  }
+}
+
+async function listMarkdownFiles(dir: string): Promise<string[]> {
+  if (!(await pathExists(dir))) {
+    return []
+  }
+
+  const entries = await readdir(dir, { withFileTypes: true })
+  const files: string[] = []
+
+  for (const entry of entries) {
+    const fullPath = `${dir}/${entry.name}`
+    if (entry.isDirectory()) {
+      files.push(...(await listMarkdownFiles(fullPath)))
+    } else if (entry.isFile() && entry.name.endsWith('.md')) {
+      files.push(fullPath)
+    }
+  }
+
+  return files
+}
+
+async function getLastUpdatedAt(pathsToCheck: string[]): Promise<string | null> {
+  const mtimes: number[] = []
+
+  for (const path of pathsToCheck) {
+    try {
+      const info = await stat(path)
+      mtimes.push(info.mtimeMs)
+    } catch {
+      continue
+    }
+  }
+
+  if (mtimes.length === 0) {
+    return null
+  }
+
+  return new Date(Math.max(...mtimes)).toISOString()
+}
+
+export async function getWikiStatus(cwd: string): Promise<WikiStatus> {
+  const paths = getWikiPaths(cwd)
+
+  const [hasRoot, hasSchema, hasIndex, hasLog, pages, sources] =
+    await Promise.all([
+      pathExists(paths.root),
+      pathExists(paths.schemaFile),
+      pathExists(paths.indexFile),
+      pathExists(paths.logFile),
+      listMarkdownFiles(paths.pagesDir),
+      listMarkdownFiles(paths.sourcesDir),
+    ])
+
+  return {
+    initialized: hasRoot && hasSchema && hasIndex && hasLog,
+    root: paths.root,
+    pageCount: pages.length,
+    sourceCount: sources.length,
+    hasSchema,
+    hasIndex,
+    hasLog,
+    lastUpdatedAt: await getLastUpdatedAt([
+      paths.schemaFile,
+      paths.indexFile,
+      paths.logFile,
+      ...pages,
+      ...sources,
+    ]),
+  }
+}

src/services/wiki/types.ts

@@ -0,0 +1,33 @@
+export type WikiPaths = {
+  root: string
+  pagesDir: string
+  sourcesDir: string
+  schemaFile: string
+  indexFile: string
+  logFile: string
+}
+
+export type WikiInitResult = {
+  root: string
+  createdFiles: string[]
+  createdDirectories: string[]
+  alreadyExisted: boolean
+}
+
+export type WikiStatus = {
+  initialized: boolean
+  root: string
+  pageCount: number
+  sourceCount: number
+  hasSchema: boolean
+  hasIndex: boolean
+  hasLog: boolean
+  lastUpdatedAt: string | null
+}
+
+export type WikiIngestResult = {
+  sourceFile: string
+  sourceNote: string
+  summary: string
+  title: string
+}

src/services/wiki/utils.ts

@@ -0,0 +1,36 @@
+export function sanitizeWikiSlug(value: string): string {
+  return value
+    .toLowerCase()
+    .replace(/[^a-z0-9]+/g, '-')
+    .replace(/^-+|-+$/g, '')
+    .replace(/-{2,}/g, '-')
+}
+
+export function summarizeText(input: string, maxLength = 280): string {
+  const normalized = input.replace(/\s+/g, ' ').trim()
+  if (!normalized) {
+    return 'No summary available.'
+  }
+
+  if (normalized.length <= maxLength) {
+    return normalized
+  }
+
+  return `${normalized.slice(0, maxLength - 1).trimEnd()}…`
+}
+
+export function extractTitleFromText(
+  fallbackName: string,
+  content: string,
+): string {
+  const firstNonEmptyLine = content
+    .split('\n')
+    .map(line => line.trim())
+    .find(Boolean)
+
+  if (!firstNonEmptyLine) {
+    return fallbackName
+  }
+
+  return firstNonEmptyLine.replace(/^#+\s*/, '') || fallbackName
+}

src/state/pluginCommandsStore.ts

@@ -0,0 +1,13 @@
+import type { Command } from '../commands.js'
+import { createStore } from './store.js'
+
+const pluginCommandsStore = createStore<Command[]>([])
+
+export const getPluginCommandsState = (): Command[] =>
+  pluginCommandsStore.getState()
+
+export const subscribePluginCommands = pluginCommandsStore.subscribe
+
+export function setPluginCommandsState(commands: Command[]): void {
+  pluginCommandsStore.setState(() => [...commands])
+}

src/tools/AgentTool/built-in/claudeCodeGuideAgent.ts

@@ -27,19 +27,19 @@ function getClaudeCodeGuideBasePrompt(): string {
     ? `${FILE_READ_TOOL_NAME}, \`find\`, and \`grep\``
     : `${FILE_READ_TOOL_NAME}, ${GLOB_TOOL_NAME}, and ${GREP_TOOL_NAME}`
 
-  return `You are the Claude guide agent. Your primary responsibility is helping users understand and use Claude Code, the Claude Agent SDK, and the Claude API (formerly the Anthropic API) effectively.
+  return `You are the OpenClaude guide agent. Your primary responsibility is helping users understand and use OpenClaude, the Claude Agent SDK, and the Claude API (formerly the Anthropic API) effectively.
 
 **Your expertise spans three domains:**
 
-1. **Claude Code** (the CLI tool): Installation, configuration, hooks, skills, MCP servers, keyboard shortcuts, IDE integrations, settings, and workflows.
+1. **OpenClaude** (the CLI tool): Installation, configuration, hooks, skills, MCP servers, keyboard shortcuts, IDE integrations, settings, and workflows.
 
-2. **Claude Agent SDK**: A framework for building custom AI agents based on Claude Code technology. Available for Node.js/TypeScript and Python.
+2. **Claude Agent SDK**: A framework for building custom AI agents. Available for Node.js/TypeScript and Python.
 
 3. **Claude API**: The Claude API (formerly known as the Anthropic API) for direct model interaction, tool use, and integrations.
 
 **Documentation sources:**
 
-- **Claude Code docs** (${CLAUDE_CODE_DOCS_MAP_URL}): Fetch this for questions about the Claude Code CLI tool, including:
+- **Claude Code docs** (${CLAUDE_CODE_DOCS_MAP_URL}): Use these as the compatibility reference for questions about the OpenClaude CLI tool, including:
   - Installation, setup, and getting started
   - Hooks (pre/post command execution)
   - Custom skills
@@ -97,7 +97,7 @@ function getFeedbackGuideline(): string {
 
 export const CLAUDE_CODE_GUIDE_AGENT: BuiltInAgentDefinition = {
   agentType: CLAUDE_CODE_GUIDE_AGENT_TYPE,
-  whenToUse: `Use this agent when the user asks questions ("Can Claude...", "Does Claude...", "How do I...") about: (1) Claude Code (the CLI tool) - features, hooks, slash commands, MCP servers, settings, IDE integrations, keyboard shortcuts; (2) Claude Agent SDK - building custom agents; (3) Claude API (formerly Anthropic API) - API usage, tool use, Anthropic SDK usage. **IMPORTANT:** Before spawning a new agent, check if there is already a running or recently completed claude-code-guide agent that you can continue via ${SEND_MESSAGE_TOOL_NAME}.`,
+  whenToUse: `Use this agent when the user asks questions ("Can OpenClaude...", "Does OpenClaude...", "How do I...") about: (1) OpenClaude (the CLI tool) - features, hooks, slash commands, MCP servers, settings, IDE integrations, keyboard shortcuts; (2) Claude Agent SDK - building custom agents; (3) Claude API (formerly Anthropic API) - API usage, tool use, Anthropic SDK usage. **IMPORTANT:** Before spawning a new agent, check if there is already a running or recently completed claude-code-guide agent that you can continue via ${SEND_MESSAGE_TOOL_NAME}.`,
   // Ant-native builds: Glob/Grep tools are removed; use Bash (with embedded
   // bfs/ugrep via find/grep aliases) for local file search instead.
   tools: hasEmbeddedSearchTools()

src/tools/AgentTool/built-in/exploreAgent.ts

@@ -21,7 +21,7 @@ function getExploreSystemPrompt(): string {
     ? `- Use \`grep\` via ${BASH_TOOL_NAME} for searching file contents with regex`
     : `- Use ${GREP_TOOL_NAME} for searching file contents with regex`
 
-  return `You are a file search specialist for OpenClaude, an open-source fork of Claude Code. You excel at thoroughly navigating and exploring codebases.
+  return `You are a file search specialist for OpenClaude. You excel at thoroughly navigating and exploring codebases.
 
 === CRITICAL: READ-ONLY MODE - NO FILE MODIFICATIONS ===
 This is a READ-ONLY exploration task. You are STRICTLY PROHIBITED from:

src/tools/AgentTool/built-in/generalPurposeAgent.ts

@@ -1,6 +1,6 @@
 import type { BuiltInAgentDefinition } from '../loadAgentsDir.js'
 
-const SHARED_PREFIX = `You are an agent for OpenClaude, an open-source fork of Claude Code. Given the user's message, you should use the tools available to complete the task. Complete the task fully—don't gold-plate, but don't leave it half-done.`
+const SHARED_PREFIX = `You are an agent for OpenClaude, an open-source coding agent and CLI. Given the user's message, you should use the tools available to complete the task. Complete the task fully—don't gold-plate, but don't leave it half-done.`
 
 const SHARED_GUIDELINES = `Your strengths:
 - Searching for code, configurations, and patterns across large codebases

src/tools/AgentTool/built-in/planAgent.ts

@@ -18,7 +18,7 @@ function getPlanV2SystemPrompt(): string {
     ? `\`find\`, \`grep\`, and ${FILE_READ_TOOL_NAME}`
     : `${GLOB_TOOL_NAME}, ${GREP_TOOL_NAME}, and ${FILE_READ_TOOL_NAME}`
 
-  return `You are a software architect and planning specialist for Claude Code. Your role is to explore the codebase and design implementation plans.
+  return `You are a software architect and planning specialist for OpenClaude. Your role is to explore the codebase and design implementation plans.
 
 === CRITICAL: READ-ONLY MODE - NO FILE MODIFICATIONS ===
 This is a READ-ONLY planning task. You are STRICTLY PROHIBITED from:

src/tools/AgentTool/built-in/statuslineSetup.ts

@@ -1,6 +1,6 @@
 import type { BuiltInAgentDefinition } from '../loadAgentsDir.js'
 
-const STATUSLINE_SYSTEM_PROMPT = `You are a status line setup agent for Claude Code. Your job is to create or update the statusLine command in the user's Claude Code settings.
+const STATUSLINE_SYSTEM_PROMPT = `You are a status line setup agent for OpenClaude. Your job is to create or update the statusLine command in the user's OpenClaude settings.
 
 When asked to convert the user's shell PS1 configuration, follow these steps:
 1. Read the user's shell configuration files in this order of preference:
@@ -47,7 +47,7 @@ How to use the statusLine command:
        "project_dir": "string",  // Project root directory path
        "added_dirs": ["string"]  // Directories added via /add-dir
      },
-     "version": "string",        // Claude Code app version (e.g., "1.0.71")
+     "version": "string",        // OpenClaude app version (e.g., "1.0.71")
      "output_style": {
        "name": "string",         // Output style name (e.g., "default", "Explanatory", "Learning")
      },
@@ -110,10 +110,11 @@ How to use the statusLine command:
    To display both 5-hour and 7-day limits when available:
    - input=$(cat); five=$(echo "$input" | jq -r '.rate_limits.five_hour.used_percentage // empty'); week=$(echo "$input" | jq -r '.rate_limits.seven_day.used_percentage // empty'); out=""; [ -n "$five" ] && out="5h:$(printf '%.0f' "$five")%"; [ -n "$week" ] && out="$out 7d:$(printf '%.0f' "$week")%"; echo "$out"
 
-2. For longer commands, you can save a new file in the user's ~/.claude directory, e.g.:
-   - ~/.claude/statusline-command.sh and reference that file in the settings.
+2. For longer commands, save a new file alongside the user's existing settings home instead of creating a new config directory.
+   - Prefer the currently used config home if one already exists.
+   - In most existing setups this will be ~/.claude/statusline-command.sh.
 
-3. Update the user's ~/.claude/settings.json with:
+3. Update the user's resolved settings file with:
    {
      "statusLine": {
        "type": "command", 
@@ -121,20 +122,23 @@ How to use the statusLine command:
      }
    }
 
-4. If ~/.claude/settings.json is a symlink, update the target file instead.
+4. Use the existing config home already in use by the installation.
+   - Prefer the settings file that already exists.
+   - If the settings file is a symlink, update the target file instead.
+   - Do not create a second parallel settings home just because another directory name also exists.
 
 Guidelines:
 - Preserve existing settings when updating
 - Return a summary of what was configured, including the name of the script file if used
 - If the script includes git commands, they should skip optional locks
 - IMPORTANT: At the end of your response, inform the parent agent that this "statusline-setup" agent must be used for further status line changes.
-  Also ensure that the user is informed that they can ask Claude to continue to make changes to the status line.
+  Also ensure that the user is informed that they can ask OpenClaude to continue to make changes to the status line.
 `
 
 export const STATUSLINE_SETUP_AGENT: BuiltInAgentDefinition = {
   agentType: 'statusline-setup',
   whenToUse:
-    "Use this agent to configure the user's Claude Code status line setting.",
+    "Use this agent to configure the user's OpenClaude status line setting.",
   tools: ['Read', 'Edit'],
   source: 'built-in',
   baseDir: 'built-in',

src/tools/MCPTool/MCPTool.ts

@@ -14,8 +14,21 @@ import {
 export const inputSchema = lazySchema(() => z.object({}).passthrough())
 type InputSchema = ReturnType<typeof inputSchema>
 
+// MCP tools can return either a plain string or an array of content blocks
+// (text, images, etc.). The outputSchema must reflect both shapes so the model
+// knows rich content is possible.
 export const outputSchema = lazySchema(() =>
-  z.string().describe('MCP tool execution result'),
+  z.union([
+    z.string().describe('MCP tool execution result as text'),
+    z
+      .array(
+        z.object({
+          type: z.string(),
+          text: z.string().optional(),
+        }),
+      )
+      .describe('MCP tool execution result as content blocks'),
+  ]),
 )
 type OutputSchema = ReturnType<typeof outputSchema>
 
@@ -65,7 +78,19 @@ export const MCPTool = buildTool({
   renderToolUseProgressMessage,
   renderToolResultMessage,
   isResultTruncated(output: Output): boolean {
-    return isOutputLineTruncated(output)
+    if (typeof output === 'string') {
+      return isOutputLineTruncated(output)
+    }
+    // Array of content blocks — check if any text block exceeds the display limit
+    if (Array.isArray(output)) {
+      return output.some(
+        block =>
+          block?.type === 'text' &&
+          typeof block.text === 'string' &&
+          isOutputLineTruncated(block.text),
+      )
+    }
+    return false
   },
   mapToolResultToToolResultBlockParam(content, toolUseID) {
     return {

src/tools/SkillTool/SkillTool.test.ts

@@ -1,6 +1,29 @@
 import { describe, expect, test } from 'bun:test'
 
+import type { Command } from '../../commands.js'
 import { SkillTool } from './SkillTool.js'
+import { renderToolUseMessage } from './UI.js'
+
+function createPromptCommand(
+  name: string,
+  options: {
+    source?: 'builtin' | 'plugin' | 'mcp' | 'bundled'
+    loadedFrom?: Command['loadedFrom']
+  } = {},
+): Command {
+  return {
+    type: 'prompt',
+    name,
+    description: `${name} description`,
+    progressMessage: `${name} progress`,
+    contentLength: 0,
+    source: options.source ?? 'builtin',
+    loadedFrom: options.loadedFrom,
+    async getPromptForCommand() {
+      return []
+    },
+  }
+}
 
 describe('SkillTool missing parameter handling', () => {
   test('missing skill stays required at the schema level', async () => {
@@ -29,3 +52,47 @@ describe('SkillTool missing parameter handling', () => {
     expect(parsed.success).toBe(true)
   })
 })
+
+describe('SkillTool renderToolUseMessage', () => {
+  test('plugin skills render correctly without plugin command metadata', () => {
+    const pluginSkillName = 'plugin:review-pr'
+
+    expect(
+      renderToolUseMessage(
+        { skill: pluginSkillName },
+        {
+          commands: [],
+        },
+      ),
+    ).toBe(pluginSkillName)
+
+    expect(
+      renderToolUseMessage(
+        { skill: pluginSkillName },
+        {
+          commands: [
+            createPromptCommand(pluginSkillName, {
+              source: 'plugin',
+              loadedFrom: 'plugin',
+            }),
+          ],
+        },
+      ),
+    ).toBe(pluginSkillName)
+  })
+
+  test('legacy commands still render with a slash prefix when metadata is present', () => {
+    expect(
+      renderToolUseMessage(
+        { skill: 'legacy-command' },
+        {
+          commands: [
+            createPromptCommand('legacy-command', {
+              loadedFrom: 'commands_DEPRECATED',
+            }),
+          ],
+        },
+      ),
+    ).toBe('/legacy-command')
+  })
+})