feat(providers): add GitHub Copilot CLI provider#480
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Copilot CLI loads MCP from ~/.copilot/mcp-config.json and accepts per-run augmentation via --additional-mcp-config (JSON or @file). - capabilities.copilot.mcpServers: false → true - cli-builder: emit --additional-mcp-config per entry (string|object|array) - cli-builder: add addDirs → repeated --add-dir flags - index: detect --additional-mcp-config / --add-dir / --config-dir support - runner: thread providerSettings.mcpConfig + addDirs into buildCommand - docs: MCP servers section with example providerSettings - tests: +5 cases (object/string/array/disabled/addDirs), 25/25 green
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Follow-up: added Copilot CLI MCP support (commit 4d2b192). Turns out the Copilot CLI does expose MCP via:
Changes:
Source: |
…lidator - cli/index.js: include 'copilot' in --provider option description - src/preflight.js: add copilot validator + update unknown-provider hint
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Summary
Adds a new
copilotprovider that wraps the official GitHub Copilot CLI (@github/copilot), alongside the existing claude / codex / gemini / opencode providers.What's included
src/providers/copilot/{index,cli-builder,output-parser,models}.jssrc/providers/index.js,src/providers/capabilities.js,lib/provider-names.js(aliases:copilot,github)docs/providers.mdtests/unit/copilot-provider.test.jsCLI mapping
copilotthen/login(GitHub Copilot subscription)gpt-5-mini(level1),claude-sonnet-4.5(level2),claude-opus-4.6(level3); plusgpt-5Capabilities
Caveats
--silent(no structured JSON stream). The parser yieldstextevents per line; completion is signaled by process exit (no syntheticresultevent with token usage).jsonSchemais enforced by appending an "OUTPUT FORMAT" block to the prompt — same pattern as opencode/gemini.Tests
hooks/block-dangerous-git.py) unchanged from baseline.