A Claude Code hook that blocks commits naming the mistake you told Claude not to make.

A developer catalogued a failure mode I've hit personally: you reject an approach and the rejection ends up in the artifact, as grilled_cheese_no_ketchup.md, "Add retry logic (without exponential backoff)", test_parser_without_regex, or PR bodies saying "as discussed" (r/ClaudeAI). His diagnosis: it isn't about negation, since half the cases contain no "no." The model is writing to the person in the chat rather than whoever reads the file a year later. ship-the-result ships a SKILL.md rule, a residue_check.py scanner with six pattern families, and a PreToolUse hook scanning git commit and gh pr create plus staged comments, test names and new filenames, blocking on a hit. His reason for a hook over a prompt rule: prompt rules fade after forty turns and regex doesn't.