Codex Review: Performance Profile

This is a reusable natural-language prompt for Codex, not a shell command. Work in the repository at [REPOSITORY_OR_PATH]. Goal: find and verify a performance bottleneck. Context: [CONTEXT]. Constraints: [CONSTRAINTS]. Definition of done: [ACCEPTANCE_CRITERIA]. Review the current diff for correctness, regressions, maintainability, and missing validation. Read applicable AGENTS.md guidance and use Codex’s inspection, editing, and verification workflow; keep approval boundaries and the user’s working tree intact. First read the repository instructions and relevant framework documentation. Preserve unrelated user changes. State assumptions, cite files and lines for findings, and ask only when a missing decision would materially change the result. Do not invent APIs, commands, flags, test results, or file contents. Deliver: baseline, instrumentation, bottleneck, and benchmark. Run the repository’s relevant formatting, lint, type, test, and build checks when authorized, and report exact results.