This skill should be used when the user asks to "run mutation testing", "mutate my code", "kill mutants", "check test quality", "find surviving mutants", "verify test effectiveness with mutations", "run stryker", "run mutmut", "run pitest", "set up mutation testing", "how good are my tests", "are my tests catching bugs", or mentions mutation testing, mutation score, or mutant survival in the context of testing. It adds a third validation layer to the ATDD workflow: after acceptance tests verify WHAT and unit tests verify HOW, mutation testing verifies that tests actually catch bugs.

Load working memory before pipeline work on a Ready feature — the convergent counterpart to `discuss`. Forked from `superpowers:brainstorming` but inverted: no exploration, just loading and orienting. Produces no artifact.

The propagation engine of DAE visibility. Skills emit handoff summaries; `progress-log` turns them into the two visible state layers — `progress.md` (the per-feature glanceable file) and the external tracker.

Restore the working contract mid-task. After a context compaction or a long run, an agent loses role identity, invents constraints that do not exist, skips required steps, and loses the task thread. `reorient` reloads the durable state that should have survived — the discipline contract first, the

Write the per-session entry in a feature's `session-log.md` so the human can close the laptop and pick back up cleanly. The human-readable counterpart to the machine handoffs. `checkpoint: null`.