fix: correct prompt identity branding (#224)

src/constants/promptIdentity.test.ts

@@ -0,0 +1,48 @@
+import { afterEach, expect, test } from 'bun:test'
+
+import { getSystemPrompt, DEFAULT_AGENT_PROMPT } from './prompts.js'
+import { CLI_SYSPROMPT_PREFIXES, getCLISyspromptPrefix } from './system.js'
+import { GENERAL_PURPOSE_AGENT } from '../tools/AgentTool/built-in/generalPurposeAgent.js'
+import { EXPLORE_AGENT } from '../tools/AgentTool/built-in/exploreAgent.js'
+
+const originalSimpleEnv = process.env.CLAUDE_CODE_SIMPLE
+
+afterEach(() => {
+  process.env.CLAUDE_CODE_SIMPLE = originalSimpleEnv
+})
+
+test('CLI identity prefixes describe OpenClaude instead of Claude Code', () => {
+  expect(getCLISyspromptPrefix()).toContain('OpenClaude')
+  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("Anthropic's official CLI for Claude")
+  }
+})
+
+test('simple mode identity describes OpenClaude instead of Claude Code', async () => {
+  process.env.CLAUDE_CODE_SIMPLE = '1'
+
+  const prompt = await getSystemPrompt([], 'gpt-4o')
+
+  expect(prompt[0]).toContain('OpenClaude')
+  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("Anthropic's official CLI for Claude")
+
+  const generalPrompt = GENERAL_PURPOSE_AGENT.getSystemPrompt({
+    toolUseContext: { options: {} as never },
+  })
+  expect(generalPrompt).toContain('OpenClaude')
+  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("Anthropic's official CLI for Claude")
+})