fix(copilot): add missing Copilot-Integration-Id header

The GitHub Copilot API now requires a Copilot-Integration-Id header on all requests. Without it, every API call fails with HTTP 400: "missing required Copilot-Integration-Id header". Uses vscode-chat as the integration ID, matching opencode which shares the same OAuth client ID (Ov23li8tweQw6odWQebz). Fixes: Copilot provider fails with "missing required Copilot-Integration-Id header" (HTTP 400) Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
2026-04-29 07:21:37 +08:00 · 2026-04-10 02:58:14 -07:00
1 changed files with 1 additions and 0 deletions
--- a/hermes_cli/copilot_auth.py
+++ b/hermes_cli/copilot_auth.py
@@ -285,6 +285,7 @@ def copilot_request_headers(
    headers: dict[str, str] = {
        "Editor-Version": "vscode/1.104.1",
        "User-Agent": "HermesAgent/1.0",
+        "Copilot-Integration-Id": "vscode-chat",
        "Openai-Intent": "conversation-edits",
        "x-initiator": "agent" if is_agent_turn else "user",
    }