The project's taste, encoded as real good/bad pairs. An agent about to write code reads the pattern file for its concern and matches the good side. A new way of doing something a pattern already covers is a defect, not a style choice.
| Concern | File |
|---|---|
| Error messages | errors.md |
| Comments | comments.md |
| Run lifecycle | lifecycle.md |
| Tests | tests.md |
A pattern earns a file here when review feedback recurs (deck-reviewer's promotion loop). One subject per file.