The gpt provider adapter spawns `codex exec -C <workdir>` with arbitrary
working directories (benchmark temp dirs, non-git paths). Without
`--skip-git-repo-check`, codex refuses to run and returns "Not inside a
trusted directory" — surfaced as a generic error.code='unknown' that
looks like an API failure.
Benchmarks don't care about codex's git-repo trust model; we just want
the prompt executed. Surfaced by the new provider live E2E test on a
temp workdir.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Garry Tan
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