fix provider switch not presistingin session (#903)

* fix provider switch not presistingin session

* fix broken tests

src/commands/provider/provider.test.tsx

@@ -11,6 +11,7 @@ import {
   buildCodexOAuthProfileEnv,
   buildCurrentProviderSummary,
   buildProfileSaveMessage,
+  buildProviderManagerCompletion,
   getProviderWizardDefaults,
   ProviderWizard,
   TextEntryDialog,
@@ -264,6 +265,32 @@ test('wizard step remount prevents a typed API key from leaking into the next fi
   expect(output).not.toContain('sk-secret-12345678')
 })
 
+test('buildProviderManagerCompletion records provider switch event and model-visible reminder', () => {
+  const completion = buildProviderManagerCompletion({
+    action: 'activated',
+    activeProviderName: 'Sadaf Provider',
+    activeProviderModel: 'sadaf-model',
+    message: 'Provider switched to Sadaf Provider (sadaf-model)',
+  })
+
+  expect(completion.message).toBe(
+    'Provider switched to Sadaf Provider (sadaf-model)',
+  )
+  expect(completion.metaMessages).toEqual([
+    '<system-reminder>Provider switched mid-session to Sadaf Provider using model sadaf-model. Use this provider/model for subsequent requests unless the user switches again.</system-reminder>',
+  ])
+})
+
+test('buildProviderManagerCompletion skips provider reminder when manager is cancelled', () => {
+  const completion = buildProviderManagerCompletion({
+    action: 'cancelled',
+    message: 'Provider manager closed',
+  })
+
+  expect(completion.message).toBe('Provider manager closed')
+  expect(completion.metaMessages).toBeUndefined()
+})
+
 test('buildProfileSaveMessage maps provider fields without echoing secrets', () => {
   const message = buildProfileSaveMessage(
     'openai',

src/commands/provider/provider.tsx

@@ -2,7 +2,10 @@ import * as React from 'react'
 
 import type { LocalJSXCommandCall, LocalJSXCommandOnDone } from '../../types/command.js'
 import { COMMON_HELP_ARGS, COMMON_INFO_ARGS } from '../../constants/xml.js'
-import { ProviderManager } from '../../components/ProviderManager.js'
+import {
+  ProviderManager,
+  type ProviderManagerResult,
+} from '../../components/ProviderManager.js'
 import TextInput from '../../components/TextInput.js'
 import {
   Select,
@@ -70,6 +73,29 @@ import {
   type OllamaGenerationReadiness,
 } from '../../utils/providerDiscovery.js'
 
+export function buildProviderManagerCompletion(result?: ProviderManagerResult): {
+  message: string
+  metaMessages?: string[]
+} {
+  const message =
+    result?.message ??
+    (result?.action === 'saved'
+      ? 'Provider profile updated'
+      : 'Provider manager closed')
+  const metaMessages =
+    result?.action === 'activated' && result.activeProviderName
+      ? [
+          `<system-reminder>Provider switched mid-session to ${result.activeProviderName}${
+            result.activeProviderModel
+              ? ` using model ${result.activeProviderModel}`
+              : ''
+          }. Use this provider/model for subsequent requests unless the user switches again.</system-reminder>`,
+        ]
+      : undefined
+
+  return { message, metaMessages }
+}
+
 function describeOllamaReadinessIssue(
   readiness: OllamaGenerationReadiness,
   options?: {
@@ -1703,13 +1729,8 @@ export const call: LocalJSXCommandCall = async (onDone, _context, args) => {
     <ProviderManager
       mode="manage"
       onDone={result => {
-        const message =
-          result?.message ??
-          (result?.action === 'saved'
-            ? 'Provider profile updated'
-            : 'Provider manager closed')
-
-        onDone(message, { display: 'system' })
+        const { message, metaMessages } = buildProviderManagerCompletion(result)
+        onDone(message, { display: 'system', metaMessages })
       }}
     />
   )