mirror of
https://github.com/getcompanion-ai/co-mono.git
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Add GitHub Copilot support (#191)
- OAuth login for GitHub Copilot via /login command - Support for github.com and GitHub Enterprise - Models sourced from models.dev (Claude, GPT, Gemini, Grok, etc.) - Dynamic base URL from token's proxy-ep field - Use vscode-chat integration ID for API compatibility - Documentation for model enablement at github.com/settings/copilot/features Co-authored-by: cau1k <cau1k@users.noreply.github.com>
This commit is contained in:
Mario Zechner
parent
ce4ba70d33
commit
b66157c649
7 changed files with 664 additions and 726 deletions
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@ -4,6 +4,8 @@
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### Added
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- **GitHub Copilot provider**: Added `github-copilot` as a known provider with models sourced from models.dev. Includes Claude, GPT, Gemini, Grok, and other models available through GitHub Copilot. ([#191](https://github.com/badlogic/pi-mono/pull/191) by [@cau1k](https://github.com/cau1k))
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- **Gemini 3 Pro thinking levels**: Thinking level configuration now works correctly for Gemini 3 Pro models. Previously all levels mapped to -1 (minimal thinking). Now LOW/MEDIUM/HIGH properly control test-time computation. ([#176](https://github.com/badlogic/pi-mono/pull/176) by [@markusylisiurunen](https://github.com/markusylisiurunen))
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## [0.18.2] - 2025-12-11
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@ -31,219 +31,11 @@ interface ModelsDevModel {
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const COPILOT_STATIC_HEADERS = {
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"User-Agent": "GitHubCopilotChat/0.35.0",
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"Editor-Version": "vscode/1.105.1",
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"Editor-Version": "vscode/1.107.0",
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"Editor-Plugin-Version": "copilot-chat/0.35.0",
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"Copilot-Integration-Id": "copilot-developer-cli",
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"Openai-Intent": "conversation-edits",
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"X-Initiator": "agent",
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"Copilot-Integration-Id": "vscode-chat",
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} as const;
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function getCopilotTokenFromEnv(): string | null {
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return process.env.COPILOT_GITHUB_TOKEN || process.env.GH_TOKEN || process.env.GITHUB_TOKEN || null;
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}
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function isCopilotModelDeprecated(model: Record<string, unknown>): boolean {
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const deprecated = model.deprecated;
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if (deprecated === true) return true;
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if (model.is_deprecated === true) return true;
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if (model.status === "deprecated") return true;
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if (model.lifecycle === "deprecated") return true;
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return false;
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}
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/**
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* Models to exclude from Copilot - dated snapshots, legacy models, and unsupported versions.
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* Users should use the main model ID (e.g., "gpt-4o") instead of dated versions.
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*/
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const COPILOT_EXCLUDED_MODELS = new Set([
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// Dated GPT-4o snapshots - use "gpt-4o" instead
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"gpt-4o-2024-05-13",
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"gpt-4o-2024-08-06",
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"gpt-4o-2024-11-20",
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// Legacy GPT-3.5 and GPT-4 models
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"gpt-3.5-turbo",
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"gpt-3.5-turbo-0613",
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"gpt-4",
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"gpt-4-0613",
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]);
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function isCopilotModelExcluded(modelId: string): boolean {
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return COPILOT_EXCLUDED_MODELS.has(modelId);
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}
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function getCopilotApi(modelId: string, supportedEndpoints: string[] | null): Api {
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if (supportedEndpoints?.includes("/responses")) return "openai-responses";
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if (supportedEndpoints?.includes("/chat/completions")) return "openai-completions";
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const id = modelId.toLowerCase();
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if (id.includes("codex") || id.startsWith("o1") || id.startsWith("o3")) {
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return "openai-responses";
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}
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return "openai-completions";
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}
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async function fetchCopilotModels(githubToken: string): Promise<Model<any>[]> {
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try {
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console.log("Fetching models from GitHub Copilot API...");
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const response = await fetch("https://api.githubcopilot.com/models", {
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headers: {
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Accept: "application/json",
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Authorization: `Bearer ${githubToken}`,
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...COPILOT_STATIC_HEADERS,
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},
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});
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if (!response.ok) {
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const text = await response.text();
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console.warn(`Failed to fetch GitHub Copilot models: ${response.status} ${text}`);
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return [];
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}
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const data = (await response.json()) as unknown;
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const list =
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Array.isArray(data)
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? data
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: Array.isArray((data as any)?.data)
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? (data as any).data
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: Array.isArray((data as any)?.models)
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? (data as any).models
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: null;
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if (!Array.isArray(list)) {
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console.warn("Failed to parse GitHub Copilot models response");
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return [];
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}
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const models: Model<any>[] = [];
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for (const item of list) {
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if (!item || typeof item !== "object") continue;
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const model = item as Record<string, unknown>;
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const id = typeof model.id === "string" ? model.id : null;
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if (!id) continue;
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if (isCopilotModelDeprecated(model)) continue;
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if (isCopilotModelExcluded(id)) continue;
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const caps = model.capabilities;
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if (!caps || typeof caps !== "object") continue;
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const supports = (caps as Record<string, unknown>).supports;
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if (!supports || typeof supports !== "object") continue;
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const supportsToolCalls = (supports as Record<string, unknown>).tool_calls === true;
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if (!supportsToolCalls) continue;
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const supportsVision = (supports as Record<string, unknown>).vision === true;
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const input: ("text" | "image")[] = supportsVision ? ["text", "image"] : ["text"];
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const limits = (caps as Record<string, unknown>).limits;
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// Copilot exposes both:
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// - max_context_window_tokens: the model's full context window capability
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// - max_prompt_tokens: the maximum prompt tokens Copilot will accept
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// For pi's purposes (compaction, prompt sizing), the prompt limit is the effective context window.
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const contextWindow =
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limits && typeof limits === "object" && typeof (limits as any).max_prompt_tokens === "number"
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? (limits as any).max_prompt_tokens
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: limits && typeof limits === "object" && typeof (limits as any).max_context_window_tokens === "number"
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? (limits as any).max_context_window_tokens
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: 128000;
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const maxTokens =
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limits && typeof limits === "object" && typeof (limits as any).max_output_tokens === "number"
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? (limits as any).max_output_tokens
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: 8192;
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const supportedEndpoints = Array.isArray(model.supported_endpoints)
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? (model.supported_endpoints as unknown[]).filter((e): e is string => typeof e === "string")
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: null;
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const api = getCopilotApi(id, supportedEndpoints);
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const base: Model<any> = {
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id,
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name: id,
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api,
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provider: "github-copilot",
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baseUrl: "https://api.githubcopilot.com",
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reasoning: false,
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input,
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cost: {
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input: 0,
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output: 0,
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cacheRead: 0,
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cacheWrite: 0,
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},
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contextWindow,
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maxTokens,
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headers: { ...COPILOT_STATIC_HEADERS },
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};
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if (api === "openai-completions") {
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base.compat = {
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supportsStore: false,
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supportsDeveloperRole: false,
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supportsReasoningEffort: false,
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};
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}
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if (supportedEndpoints && !supportedEndpoints.includes("/chat/completions") && !supportedEndpoints.includes("/responses")) {
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continue;
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}
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models.push(base);
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}
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console.log(`Fetched ${models.length} tool-capable models from GitHub Copilot`);
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return models;
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} catch (error) {
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console.warn("Failed to fetch GitHub Copilot models:", error);
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return [];
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}
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}
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function getFallbackCopilotModels(): Model<any>[] {
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const fallback: Array<{ id: string; api: Api; input: ("text" | "image")[] }> = [
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{ id: "claude-opus-4.5", api: "openai-completions", input: ["text", "image"] },
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{ id: "claude-sonnet-4.5", api: "openai-completions", input: ["text", "image"] },
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{ id: "claude-haiku-4.5", api: "openai-completions", input: ["text", "image"] },
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{ id: "gemini-3-pro-preview", api: "openai-completions", input: ["text", "image"] },
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{ id: "grok-code-fast-1", api: "openai-completions", input: ["text"] },
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{ id: "gpt-5.2", api: "openai-responses", input: ["text", "image"] },
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{ id: "gpt-5.1-codex-max", api: "openai-responses", input: ["text", "image"] },
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];
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return fallback.map(({ id, api, input }) => {
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const model: Model<any> = {
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id,
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name: id,
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api,
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provider: "github-copilot",
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baseUrl: "https://api.githubcopilot.com",
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reasoning: false,
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input,
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cost: {
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input: 0,
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output: 0,
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cacheRead: 0,
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cacheWrite: 0,
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},
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contextWindow: 128000,
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maxTokens: 8192,
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headers: { ...COPILOT_STATIC_HEADERS },
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};
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if (api === "openai-completions") {
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model.compat = {
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supportsStore: false,
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supportsDeveloperRole: false,
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supportsReasoningEffort: false,
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};
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}
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return model;
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});
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}
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async function fetchOpenRouterModels(): Promise<Model<any>[]> {
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try {
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console.log("Fetching models from OpenRouter API...");
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@ -518,6 +310,40 @@ async function loadModelsDevData(): Promise<Model<any>[]> {
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}
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}
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// Process GitHub Copilot models
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if (data["github-copilot"]?.models) {
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for (const [modelId, model] of Object.entries(data["github-copilot"].models)) {
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const m = model as ModelsDevModel & { status?: string };
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if (m.tool_call !== true) continue;
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if (m.status === "deprecated") continue;
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const copilotModel: Model<any> = {
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id: modelId,
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name: m.name || modelId,
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api: "openai-completions",
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provider: "github-copilot",
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baseUrl: "https://api.individual.githubcopilot.com",
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reasoning: m.reasoning === true,
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input: m.modalities?.input?.includes("image") ? ["text", "image"] : ["text"],
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cost: {
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input: m.cost?.input || 0,
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output: m.cost?.output || 0,
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cacheRead: m.cost?.cache_read || 0,
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cacheWrite: m.cost?.cache_write || 0,
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},
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contextWindow: m.limit?.context || 128000,
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maxTokens: m.limit?.output || 8192,
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headers: { ...COPILOT_STATIC_HEADERS },
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compat: {
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supportsStore: false,
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supportsDeveloperRole: false,
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supportsReasoningEffort: false,
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},
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};
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models.push(copilotModel);
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}
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}
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console.log(`Loaded ${models.length} tool-capable models from models.dev`);
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return models;
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@ -537,20 +363,6 @@ async function generateModels() {
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// Combine models (models.dev has priority)
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const allModels = [...modelsDevModels, ...openRouterModels];
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const copilotToken = getCopilotTokenFromEnv();
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let copilotModels: Model<any>[] = [];
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if (copilotToken) {
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copilotModels = await fetchCopilotModels(copilotToken);
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if (copilotModels.length === 0) {
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console.warn("GitHub Copilot model fetch returned no models. Using fallback list.");
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copilotModels = getFallbackCopilotModels();
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}
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} else {
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console.warn("No Copilot token found (set COPILOT_GITHUB_TOKEN, GH_TOKEN, or GITHUB_TOKEN). Using fallback list.");
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copilotModels = getFallbackCopilotModels();
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}
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allModels.push(...copilotModels);
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// Fix incorrect cache pricing for Claude Opus 4.5 from models.dev
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// models.dev has 3x the correct pricing (1.5/18.75 instead of 0.5/6.25)
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const opus45 = allModels.find(m => m.provider === "anthropic" && m.id === "claude-opus-4-5");
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File diff suppressed because it is too large
Load diff
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@ -2,6 +2,10 @@
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## [Unreleased]
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### Added
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- **GitHub Copilot support**: Use GitHub Copilot models via OAuth login (`/login` -> "GitHub Copilot"). Supports both github.com and GitHub Enterprise. Models are sourced from models.dev and include Claude, GPT, Gemini, Grok, and more. Some models require enablement at https://github.com/settings/copilot/features before use. ([#191](https://github.com/badlogic/pi-mono/pull/191) by [@cau1k](https://github.com/cau1k))
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### Fixed
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- Model selector fuzzy search now matches against provider name (not just model ID) and supports space-separated tokens where all tokens must match
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@ -125,6 +125,23 @@ pi
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/login # Select "Anthropic (Claude Pro/Max)", authorize in browser
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```
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**GitHub Copilot:**
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```bash
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pi
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/login # Select "GitHub Copilot", authorize in browser
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```
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During login, you'll be prompted for an enterprise domain. Press Enter to use github.com, or enter your GitHub Enterprise Server domain (e.g., `github.mycompany.com`).
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Some models require explicit enablement before use. If you get "The requested model is not supported" error, enable the model at:
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**https://github.com/settings/copilot/features**
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For enterprise users, check with your organization's Copilot administrator for model availability and policies.
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Note: Enabling some models (e.g., Grok from xAI) may involve sharing usage data with the provider. Review the terms before enabling.
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Tokens stored in `~/.pi/agent/oauth.json` (mode 0600). Use `/logout` to clear.
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### Quick Start
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@ -242,18 +242,15 @@ export function loadAndMergeModels(): { models: Model<Api>[]; error: string | nu
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const combined = [...builtInModels, ...customModels];
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// Update github-copilot base URL based on OAuth token or enterprise domain
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const copilotCreds = loadOAuthCredentials("github-copilot");
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if (copilotCreds?.enterpriseUrl) {
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const domain = normalizeDomain(copilotCreds.enterpriseUrl);
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if (domain) {
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const baseUrl = getGitHubCopilotBaseUrl(domain);
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return {
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models: combined.map((m) =>
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m.provider === "github-copilot" && m.baseUrl === "https://api.githubcopilot.com" ? { ...m, baseUrl } : m,
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),
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error: null,
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};
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}
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if (copilotCreds) {
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const domain = copilotCreds.enterpriseUrl ? normalizeDomain(copilotCreds.enterpriseUrl) : undefined;
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const baseUrl = getGitHubCopilotBaseUrl(copilotCreds.access, domain ?? undefined);
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return {
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models: combined.map((m) => (m.provider === "github-copilot" ? { ...m, baseUrl } : m)),
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error: null,
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};
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}
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return { models: combined, error: null };
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@ -288,23 +285,31 @@ export async function getApiKeyForModel(model: Model<Api>): Promise<string | und
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}
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if (model.provider === "github-copilot") {
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// 1. Check OAuth storage (from device flow login)
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const oauthToken = await getOAuthToken("github-copilot");
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if (oauthToken) {
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return oauthToken;
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}
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// 2. Use GitHub token directly (works with copilot scope on github.com)
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const githubToken = process.env.COPILOT_GITHUB_TOKEN || process.env.GH_TOKEN || process.env.GITHUB_TOKEN;
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if (!githubToken) {
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return undefined;
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}
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// 3. For enterprise, exchange token for short-lived Copilot token
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const enterpriseDomain = process.env.COPILOT_ENTERPRISE_URL
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? normalizeDomain(process.env.COPILOT_ENTERPRISE_URL)
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: undefined;
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const creds = await refreshGitHubCopilotToken(githubToken, enterpriseDomain || undefined);
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saveOAuthCredentials("github-copilot", creds);
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return creds.access;
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if (enterpriseDomain) {
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const creds = await refreshGitHubCopilotToken(githubToken, enterpriseDomain);
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saveOAuthCredentials("github-copilot", creds);
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return creds.access;
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}
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// 4. For github.com, use token directly
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return githubToken;
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}
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// For built-in providers, use getApiKey from @mariozechner/pi-ai
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@ -4,11 +4,9 @@ const CLIENT_ID = "Iv1.b507a08c87ecfe98";
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const COPILOT_HEADERS = {
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"User-Agent": "GitHubCopilotChat/0.35.0",
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"Editor-Version": "vscode/1.105.1",
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"Editor-Version": "vscode/1.107.0",
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"Editor-Plugin-Version": "copilot-chat/0.35.0",
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"Copilot-Integration-Id": "copilot-developer-cli",
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"Openai-Intent": "conversation-edits",
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"X-Initiator": "agent",
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"Copilot-Integration-Id": "vscode-chat",
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} as const;
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type DeviceCodeResponse = {
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@ -54,9 +52,29 @@ function getUrls(domain: string): {
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};
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}
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export function getGitHubCopilotBaseUrl(enterpriseDomain?: string): string {
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if (!enterpriseDomain) return "https://api.githubcopilot.com";
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return `https://copilot-api.${enterpriseDomain}`;
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/**
|
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* Parse the proxy-ep from a Copilot token and convert to API base URL.
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* Token format: tid=...;exp=...;proxy-ep=proxy.individual.githubcopilot.com;...
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* Returns API URL like https://api.individual.githubcopilot.com
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*/
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export function getBaseUrlFromToken(token: string): string | null {
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const match = token.match(/proxy-ep=([^;]+)/);
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if (!match) return null;
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const proxyHost = match[1];
|
||||
// Convert proxy.xxx to api.xxx
|
||||
const apiHost = proxyHost.replace(/^proxy\./, "api.");
|
||||
return `https://${apiHost}`;
|
||||
}
|
||||
|
||||
export function getGitHubCopilotBaseUrl(token?: string, enterpriseDomain?: string): string {
|
||||
// If we have a token, extract the base URL from proxy-ep
|
||||
if (token) {
|
||||
const urlFromToken = getBaseUrlFromToken(token);
|
||||
if (urlFromToken) return urlFromToken;
|
||||
}
|
||||
// Fallback for enterprise or if token parsing fails
|
||||
if (enterpriseDomain) return `https://copilot-api.${enterpriseDomain}`;
|
||||
return "https://api.individual.githubcopilot.com";
|
||||
}
|
||||
|
||||
async function fetchJson(url: string, init: RequestInit): Promise<unknown> {
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue