Support GitHub Copilot: configure Copilot to use agentgateway #86

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1. LutzLange commented on Sep 30, 2026

   

   LutzLange

   on Sep 30, 2026

   Last edited by LutzLange

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   I've prepared an implementation as six stacked PRs; each is reviewable on its own (review its last commit).

   Design in short

   • Why a proxy: the clients take only a static key (see above), so the daemon runs an optional loopback proxy (daemon.llmProxy.listen, user mode only) that adds the device's gateway credential. A per-device pairing value on every request keeps other local users and browser pages out.
   • Routes: each program gets a fixed route, so the gateway sees a per-tool client ID.
   • Two model paths:
     • The gateway's own models, through the clients' bring-your-own-key files: Copilot CLI providers.json, VS Code chatLanguageModels.json.
     • GitHub's models on the user's Copilot seat: VS Code's overrideCapiUrl points at the proxy, which forwards to a gateway pass-through route with the user's Copilot token kept.
   • Fleet side: per-program status to the controller, an opt-in reconcile tick, and a fail-closed default when the proxy is down.
   • Out of scope: the MCP entries from this issue, and inline completions (they always go to GitHub).

   Order

   1. fix(oidc): open the authorization page without waiting for the launcher #133 fix(oidc): open the authorization page without waiting for the launcher (independent)
   2. feat(agent): local LLM proxy for clients without an API-key helper #134 local LLM proxy
   3. feat(agent): manage Copilot CLI and VS Code Copilot Chat #135 Copilot CLI and VS Code Copilot Chat programs
   4. feat: report per-program configuration status to the controller #136 per-program configuration status
   5. feat(agent): opt-in reconcile tick; skip identical writes #137 opt-in reconcile tick; skip identical writes
   6. feat: llmGateway.whenProxyUnavailable and a GitHub Copilot example #138 llmGateway.whenProxyUnavailable and examples/copilot/

   All six pass CI. They were tested with unit tests and with lab tests on a Linux VM. The listener started on a branch by John Howard and James McShane.

   🤖 Generated with Claude Code
2. peterj

   added 2 commits that reference this issue on Oct 6, 2026

   feat(agent): local LLM proxy for clients without an API-key helper (#134

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   65f70c1

   feat(agent): manage Copilot CLI and VS Code Copilot Chat (#135)

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   bc14ee3
3. peterj commented on Oct 7, 2026

   

   peterj

   on Oct 7, 2026

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   @LutzLange we can close this one, right?