sharp is a native C module (libvips) whose .node binaries can't be
embedded in Bun compiled executables. It was imported at the top level
in copilot-fetch.ts, crashing the entire server at startup.
Replace with jimp (pure JavaScript, zero native deps) which bundles
cleanly into compiled binaries. Same resize algorithm preserved.
Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
* feat: add GitHub Copilot as OAuth-based LLM provider
Add GitHub Copilot as a second OAuth provider using the Device Code flow
(RFC 8628). Users authenticate via github.com/login/device, and the server
polls for token completion. Supports 25+ models through a single Copilot
subscription.
Key changes:
- Device Code OAuth flow in token manager (poll with safety margin)
- Custom fetch wrapper injecting Copilot headers + vision detection
- Provider factory using createOpenAICompatible for Chat Completions API
- Extension UI with template card, auto-create on auth, and disconnect
* fix: address PR review comments for GitHub Copilot OAuth
- Validate device code response for error fields (GitHub can return 200
with error payload)
- Store empty refreshToken instead of access token for GitHub tokens
- Add closeButton to Toaster for dismissing device code toast
* fix: add github-copilot to agent provider factory
The chat route uses a separate provider-factory.ts (agent layer) from the
test-provider route (llm/provider.ts). Added createGitHubCopilotFactory
to the agent factory so chat works with GitHub Copilot.
* fix: add github-copilot to provider icons, models, and dialog
- Add Github icon from lucide-react to providerIcons map
- Add 8 Copilot models (GPT-4o, Claude, Gemini, Grok) to models.ts
- Add github-copilot to NewProviderDialog zod enum, validation skip,
canTest check, and OAuth credential message
* fix: reorder copilot models with free-tier models first
Put models available on Copilot Free at the top (gpt-4o, gpt-4.1,
gpt-5-mini, claude-haiku-4.5, grok-code-fast-1), followed by
premium models that require paid Copilot subscription.
* fix: set correct 64K context window for Copilot models
Copilot API enforces a 64K input token limit regardless of the
underlying model's native context window. Updated all model entries
and the default template to 64000 so compaction triggers correctly.
* fix: use actual per-model prompt limits from Copilot /models API
Queried api.githubcopilot.com/models for real max_prompt_tokens values.
GPT-4o/4.1 have 64K, Claude/gpt-5-mini have 128K, GPT-5.x have 272K.
Also updated model list to match what's actually available on the API
(e.g. claude-sonnet-4.6 instead of 4.5, added gpt-5.4/5.2-codex).
* feat: resize images for Copilot using VS Code's algorithm
Large screenshots cause 413 errors on Copilot's API. Resize images
following VS Code's approach: max 2048px longest side, 768px shortest
side, re-encode as JPEG at 75% quality. Uses sharp for server-side
image processing.
* fix: address all Greptile P1 review comments
- Add .catch() on fire-and-forget pollDeviceCode to prevent unhandled
rejection crashes (Node 15+)
- Add deduplication guard (activeDeviceFlows Set) to prevent concurrent
device code flows for the same provider
- Add runtime validation of server response in frontend before calling
window.open() and showing toast
- Remove dead GITHUB_DEVICE_VERIFICATION constant from urls.ts
* fix: upgrade biome to 2.4.8, fix all lint errors, and address review bugs
- Upgrade biome from 2.4.5 to 2.4.8 (matches CI) and migrate configs
- Fix image resize: only re-encode when dimensions actually change
- Fix device code polling: retry on transient network errors instead of aborting
- Allow restarting device code flow (clear old flow instead of throwing 500)
- Fix pre-existing noNonNullAssertion and noExplicitAny lint errors globally
* fix: address Greptile P2 review — image resize and config guard
- Fix early-return guard: check max/min sides against their respective
limits (MAX_LONG_SIDE/MAX_SHORT_SIDE) instead of both against SHORT
- Preserve PNG alpha: detect hasAlpha and keep PNG format instead of
unconditionally converting to lossy JPEG
- Keep browserosId guard in resolveGitHubCopilotConfig consistent with
ChatGPT Pro pattern (safety check that caller context is valid)
* feat: update Copilot models to full list from pricing page, default to gpt-5-mini
Added all 23 models from GitHub Copilot pricing page. Ordered with
free-tier models first (gpt-5-mini, claude-haiku-4.5), then premium.
Changed default from gpt-4o to gpt-5-mini since it's unlimited on
Pro plan and has 128K context (vs gpt-4o's 64K limit).
- Add hover_at, type_at, drag_at coordinate tools to server
- Add hoverAt, typeAt, dragAt methods to Browser class
- Export server internals (browser, tool-loop, registry) for eval imports
- Copy eval app from enterprise repo with agents, graders, runner, dashboard
- Nest eval-targets inside apps/eval
- Adapt sessionExecutionDir → workingDir for current server API
- Add biome ignore for dashboard HTML to prevent lint breaking onclick handlers
