Align GitHub Copilot quota usage with AI credits

packages/ui/src/lib/i18n/messages/de.ts

@@ -2820,7 +2820,7 @@ export const dict = {
   'quota.window.premium': 'Premium-Interaktionen',
   'quota.window.chat': 'Chat-Anfragen',
   'quota.window.completions': 'Vervollständigungen',
-  'quota.window.premiumInteractions': 'Premium-Interaktionen',
+  'quota.window.premiumInteractions': 'KI-Guthaben',
   'terminalView.actions.attachSelection': 'Ausgewählte Ausgabe anhängen',
   'terminalView.actions.restart': 'Terminal neu starten',
   'chat.message.terminalContext': '{terminal}, Zeilen {start}-{end}',

packages/ui/src/lib/i18n/messages/en.ts

@@ -2998,7 +2998,7 @@ export const dict = {
   'quota.window.premium': 'Premium Interactions',
   'quota.window.chat': 'Chat Requests',
   'quota.window.completions': 'Completions',
-  'quota.window.premiumInteractions': 'Premium interactions',
+  'quota.window.premiumInteractions': 'AI Credits',
   'chat.workStatus.ariaLabel': 'Work status',
   'chat.workStatus.context.label': 'Context',
   'chat.workStatus.git.changedFileSingle': '{count} file changed',

packages/ui/src/lib/i18n/messages/es.ts

@@ -2999,7 +2999,7 @@ export const dict: Record<I18nKey, string> = {
   "quota.window.premium": "Premium Interactions",
   "quota.window.chat": "Chat Requests",
   "quota.window.completions": "Completions",
-  "quota.window.premiumInteractions": "Premium interactions",
+  "quota.window.premiumInteractions": "Créditos de IA",
   'chat.workStatus.ariaLabel': 'Estado del trabajo',
   'chat.workStatus.context.label': 'Contexto',
   'chat.workStatus.git.changedFileSingle': '{count} archivo modificado',

packages/ui/src/lib/i18n/messages/fr.ts

@@ -2691,7 +2691,7 @@ export const dict = {
   'quota.window.premium': 'Interactions premium',
   'quota.window.chat': 'Requêtes de chat',
   'quota.window.completions': 'Complétions',
-  'quota.window.premiumInteractions': 'Interactions premium',
+  'quota.window.premiumInteractions': 'Crédits IA',
   'layout.mainTab.diagram': 'Diagramme',
   'mobile.nav.aria': 'Navigation mobile',
   'mobile.connect.welcome.title': 'Se connecter à OpenChamber',

packages/ui/src/lib/i18n/messages/ja.ts

@@ -2997,7 +2997,7 @@ export const dict: Record<I18nKey, string> = {
   'onboarding.localSetup.actions.checkAndContinue': 'インストール完了、確認して続行',
   'onboarding.localSetup.status.autoContinue': '検出され次第自動的に続行します。',
   'updateDialog.changelog.title': '新機能',
-  'quota.window.premiumInteractions': 'プレミアムインタラクション',
+  'quota.window.premiumInteractions': 'AIクレジット',
 
   'chat.workStatus.ariaLabel': '作業状況',
   'chat.workStatus.context.label': 'コンテキスト',

packages/ui/src/lib/i18n/messages/ko.ts

@@ -2998,7 +2998,7 @@ export const dict: Record<I18nKey, string> = {
   'quota.window.premium': 'Premium Interactions',
   'quota.window.chat': 'Chat Requests',
   'quota.window.completions': 'Completions',
-  'quota.window.premiumInteractions': 'Premium interactions',
+  'quota.window.premiumInteractions': 'AI 크레딧',
   'chat.workStatus.ariaLabel': '작업 상태',
   'chat.workStatus.context.label': '컨텍스트',
   'chat.workStatus.git.changedFileSingle': '파일 {count}개 변경됨',

packages/ui/src/lib/i18n/messages/pl.ts

@@ -3015,7 +3015,7 @@ export const dict: Record<I18nKey, string> = {
   'quota.window.premium': 'Premium Interactions',
   'quota.window.chat': 'Chat Requests',
   'quota.window.completions': 'Completions',
-  'quota.window.premiumInteractions': 'Premium interactions',
+  'quota.window.premiumInteractions': 'Kredyty AI',
   'chat.workStatus.ariaLabel': 'Stan pracy',
   'chat.workStatus.context.label': 'Kontekst',
   'chat.workStatus.git.changedFileSingle': 'Zmieniono {count} plik',

packages/ui/src/lib/i18n/messages/pt-BR.ts

@@ -2999,7 +2999,7 @@ export const dict: Record<I18nKey, string> = {
   "quota.window.premium": "Premium Interactions",
   "quota.window.chat": "Chat Requests",
   "quota.window.completions": "Completions",
-  "quota.window.premiumInteractions": "Premium interactions",
+  "quota.window.premiumInteractions": "Créditos de IA",
   'chat.workStatus.ariaLabel': 'Status do trabalho',
   'chat.workStatus.context.label': 'Contexto',
   'chat.workStatus.git.changedFileSingle': '{count} arquivo alterado',

packages/ui/src/lib/i18n/messages/uk.ts

@@ -2999,7 +2999,7 @@ export const dict: Record<I18nKey, string> = {
   "quota.window.premium": "Premium Interactions",
   "quota.window.chat": "Chat Requests",
   "quota.window.completions": "Completions",
-  "quota.window.premiumInteractions": "Premium interactions",
+  "quota.window.premiumInteractions": "Кредити ШІ",
   'chat.workStatus.ariaLabel': 'Стан роботи',
   'chat.workStatus.context.label': 'Контекст',
   'chat.workStatus.git.changedFileSingle': 'Змінено {count} файл',

packages/ui/src/lib/i18n/messages/zh-CN.ts

@@ -2999,7 +2999,7 @@ export const dict: Record<I18nKey, string> = {
   'quota.window.premium': 'Premium Interactions',
   'quota.window.chat': 'Chat Requests',
   'quota.window.completions': 'Completions',
-  'quota.window.premiumInteractions': 'Premium interactions',
+  'quota.window.premiumInteractions': 'AI 点数',
   'chat.workStatus.ariaLabel': '工作状态',
   'chat.workStatus.context.label': '上下文',
   'chat.workStatus.git.changedFileSingle': '已更改 {count} 个文件',

packages/ui/src/lib/i18n/messages/zh-TW.ts

@@ -2998,7 +2998,7 @@ export const dict: Record<I18nKey, string> = {
   'quota.window.premium': 'Premium Interactions',
   'quota.window.chat': 'Chat Requests',
   'quota.window.completions': 'Completions',
-  'quota.window.premiumInteractions': 'Premium interactions',
+  'quota.window.premiumInteractions': 'AI 點數',
   'chat.workStatus.ariaLabel': '工作狀態',
   'chat.workStatus.context.label': '上下文',
   'chat.workStatus.git.changedFileSingle': '已變更 {count} 個檔案',

packages/ui/src/lib/quota/utils.test.ts

@@ -1,6 +1,6 @@
 import { describe, expect, test } from 'bun:test';
 
-import { clampPercent, formatPercent } from './utils';
+import { clampPercent, formatPercent, formatWindowLabel } from './utils';
 
 describe('quota utils', () => {
   test('treats non-finite percentages as missing', () => {
@@ -10,4 +10,9 @@ describe('quota utils', () => {
     expect(formatPercent(Infinity)).toBe('-');
     expect(formatPercent(-Infinity)).toBe('-');
   });
+
+  test('labels Copilot usage as AI Credits without changing generic premium usage', () => {
+    expect(formatWindowLabel('premium')).toBe('Premium Interactions');
+    expect(formatWindowLabel('premium_interactions')).toBe('AI Credits');
+  });
 });

packages/vscode/src/quotaProviders.test.ts

@@ -19,6 +19,7 @@ const AUTH = JSON.stringify({
   'opencode-go': { key: 'test-token' },
   'zai-coding-plan': { key: 'test-token' },
   deepseek: { key: 'test-token' },
+  'github-copilot': { access: 'test-token' },
 });
 ((fs as unknown) as { existsSync: () => boolean }).existsSync = () => true;
 ((fs as unknown) as { readFileSync: () => string }).readFileSync = () => AUTH;
@@ -173,6 +174,26 @@ describe('Codex quota provider (VS Code parity)', () => {
   });
 });
 
+describe('GitHub Copilot quota provider (VS Code parity)', () => {
+  test('exposes only premium interactions as the primary usage window', async () => {
+    stubFetchReturning(() => Promise.resolve(mockResponse({
+      quota_reset_date: '2026-09-01T00:00:00Z',
+      quota_snapshots: {
+        chat: { entitlement: 100, remaining: 80 },
+        completions: { entitlement: 1000, remaining: 900 },
+        premium_interactions: { entitlement: 300, remaining: 225 },
+      },
+    })));
+
+    const result = await fetchQuotaForProvider('github-copilot');
+
+    assert.equal(result.ok, true);
+    assert.deepEqual(Object.keys(result.usage!.windows), ['premium_interactions']);
+    assert.equal(result.usage!.windows.premium_interactions!.usedPercent, 25);
+    assert.equal(result.usage!.windows.premium_interactions!.valueLabel, '225 / 300 left');
+  });
+});
+
 describe('Z.ai quota provider (VS Code parity)', () => {
   test('surfaces 5-hour, weekly, and MCP quota windows', async () => {
     stubFetchReturning(() => Promise.resolve(mockResponse({

packages/vscode/src/quotaProviders.ts

@@ -1362,9 +1362,7 @@ const buildCopilotWindows = (payload: Record<string, unknown>) => {
     });
   };
 
-  addWindow('chat', quota.chat as Record<string, unknown> | undefined);
+  addWindow('premium_interactions', quota.premium_interactions as Record<string, unknown> | undefined);
-  addWindow('completions', quota.completions as Record<string, unknown> | undefined);
-  addWindow('premium', quota.premium_interactions as Record<string, unknown> | undefined);
 
   return windows;
 };
@@ -1462,7 +1460,9 @@ const fetchCopilotAddonQuota = async (): Promise<ProviderResult> => {
 
     const payload = await response.json() as Record<string, unknown>;
     const windows = buildCopilotWindows(payload);
-    const premium = windows.premium ? { premium: windows.premium } : windows;
+    const premium = windows.premium_interactions
+      ? { premium_interactions: windows.premium_interactions }
+      : windows;
 
     return buildResult({
       providerId: 'github-copilot-addon',

packages/web/server/lib/quota/DOCUMENTATION.md

@@ -82,6 +82,15 @@ In 2025/2026 MiniMax rebranded "Coding Plan" to "Token Plan" alongside the M3 mo
 
 The provider computes `usedPercent` from whichever of `used`/`remaining` is present (`used` takes precedence when both exist) rather than assuming one field name. Both `packages/web/server/lib/quota/providers/kimi.js` and `packages/vscode/src/quotaProviders.ts` (`fetchKimiQuota`) must stay in sync — the VS Code extension duplicates this parsing logic rather than importing it.
 
+## GitHub Copilot quota semantics
+
+GitHub Copilot usage exposes only the `premium_interactions` snapshot as the
+`premium_interactions` window. Shared UI labels that window **AI Credits** and treats it as
+the provider's primary usage marker. Legacy chat-request quota and unlimited
+completion quota are intentionally omitted. Keep
+`packages/web/server/lib/quota/providers/copilot.js` and
+`packages/vscode/src/quotaProviders.ts` in sync.
+
 ## Notes for contributors
 - Keep provider IDs stable; clients use them directly.
 - Avoid adding alias-based dispatch in `fetchQuotaForProvider`; dispatch currently expects exact provider IDs.

packages/web/server/lib/quota/providers/copilot.js

@@ -31,9 +31,7 @@ const buildCopilotWindows = (payload) => {
     });
   };
 
-  addWindow('chat', quota.chat);
+  addWindow('premium_interactions', quota.premium_interactions);
-  addWindow('completions', quota.completions);
-  addWindow('premium', quota.premium_interactions);
 
   return windows;
 };
@@ -144,7 +142,9 @@ export const fetchQuotaAddon = async () => {
 
     const payload = await response.json();
     const windows = buildCopilotWindows(payload);
-    const premium = windows.premium ? { premium: windows.premium } : windows;
+    const premium = windows.premium_interactions
+      ? { premium_interactions: windows.premium_interactions }
+      : windows;
 
     return buildResult({
       providerId: providerIdAddon,

packages/web/server/lib/quota/providers/copilot.test.js

@@ -0,0 +1,42 @@
+import { afterEach, describe, expect, it, vi } from 'vitest';
+
+vi.mock('../../opencode/auth.js', () => ({
+  readAuthFile: () => ({ 'github-copilot': { access: 'test-token' } }),
+}));
+
+import { fetchQuota, fetchQuotaAddon } from './copilot.js';
+
+afterEach(() => {
+  vi.unstubAllGlobals();
+});
+
+const payload = {
+  quota_reset_date: '2026-09-01T00:00:00Z',
+  quota_snapshots: {
+    chat: { entitlement: 100, remaining: 80 },
+    completions: { entitlement: 1000, remaining: 900 },
+    premium_interactions: { entitlement: 300, remaining: 225 },
+  },
+};
+
+const mockResponse = () => ({
+  ok: true,
+  status: 200,
+  json: async () => payload,
+});
+
+describe('GitHub Copilot quota provider', () => {
+  it.each([
+    ['primary provider', fetchQuota],
+    ['add-on provider', fetchQuotaAddon],
+  ])('exposes only premium interactions for the %s', async (_name, fetchProviderQuota) => {
+    vi.stubGlobal('fetch', vi.fn().mockResolvedValue(mockResponse()));
+
+    const result = await fetchProviderQuota();
+
+    expect(result.ok).toBe(true);
+    expect(Object.keys(result.usage.windows)).toEqual(['premium_interactions']);
+    expect(result.usage.windows.premium_interactions.usedPercent).toBe(25);
+    expect(result.usage.windows.premium_interactions.valueLabel).toBe('225 / 300 left');
+  });
+});