Apply Kent Beck's Test Desiderata to plan, add, rewrite, or review tests. Use when Codex is designing a test strategy, adding or changing unit/integration/e2e tests, reproducing a bug with a failing test, reviewing test quality, deciding what level of test to write, or explaining test tradeoffs.
Structured logging workflow for debugging code paths with per-run log files in `.context/slog`. Use when the user says "use slog", asks for structured logging, wants you to instrument a flow, run it, and inspect logs. Triggers on requests like "use slog", "add structured logs", "log this flow", or "debug with slog".