WITALO ROCHA 016c3fdb77 fix(github): honor per-model targetFormat override for Copilot custom models (#8713) ...

GithubExecutor.buildUrl() only consulted the static PROVIDER_MODELS registry
via getModelTargetFormat("gh", model), so a custom Copilot model (e.g.
gpt-5.6-terra/gpt-5.6-luna) with its dashboard "Target Format" set to
OpenAI Responses API always still routed to /chat/completions and got
rejected upstream with "model ... is not accessible via the
/chat/completions endpoint" — the setting had no effect on real routing.

chatCore already resolves the correct per-request targetFormat (including
the custom-model override) via resolveChatCoreTargetFormat(), but that value
was never threaded past chatCore into the executor's own URL-building
decision. Mirrors the zai/glm-coding-apikey fix (#7364) for the identical
class of bug: chatCore/executionCredentials.ts now surfaces the resolved
override onto providerSpecificData.targetFormat when it resolves to
openai-responses for the github provider, and GithubExecutor.buildUrl()
prefers that value over the static registry lookup when present.

Verified: 6 new regression tests plus all 95 pre-existing github/executor
tests green.

Co-authored-by: Wital <wital@example.com>

2026-08-11 04:24:44 -03:00

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