Flight 04 Prompt Sequence

Show the final diff, tests, runtime evidence, report example, input and output boundaries, denied cases, limitations, and Git state.

After separate approval, stage and commit only source, tests, safe synthetic fixtures, and documentation. Do not commit generated reports, temporary uploads, caches, or secrets. Prepare a flight record explaining what ChatGPT contributed, what Codex changed, what remained deterministic, what the tests proved, and what would require a different architecture.