ClaudSkills › Skill of the Day › 2026-06-25
Thursday, 25 June 2026
mutate
Run mutation testing to verify test effectiveness by analyzing killed, survived, and uncovered mutants.
Install with one command:
/add-skill mutate
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How the daily pick works
Each UTC day, ClaudSkills picks one skill from the top-quality bucket of the catalog via a deterministic date-hash. Install ClaudSkills to your home screen (see the install guide) and opt in below to get a daily push notification with the new pick.
Pool source for this date: daily_eligible. Catalog count at render time: see /stats/.
Get daily Skill of the Day reminders
A short notification at 10:00 UTC each day with the new pick — works on Android Chrome (and any Android browser that supports Web Push).