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Performance regression gate. Detects N+1 queries, sync-in-async, missing indexes, memory leaks, and bundle bloat before they reach production.
Performance regression gate. Analyzes code changes for patterns that cause measurable slowdowns — N+1 queries, sync operations in async handlers, unbounded DB queries, missing indexes, memory leaks, and bundle bloat. Not a profiler — a gate. Finds performance bugs with measurable/estimated impact before production, so developers fix them at the cheapest point in the cycle.
/rune perf — manual invocation before commitcook (L1): Phase 5 quality gatereview (L2): performance patterns detected in diffdeploy (L2): pre-deploy regression checkaudit (L2): performance health dimensionscout (L2): find hotpath files and identify framework in usebrowser-pilot (L3): run Lighthouse / Core Web Vitals for frontend projectsverification (L3): run benchmark scripts if configured (e.g. npm run bench)design (L2): when Lighthouse Accessibility BLOCK — design system may lack a11y foundationcook (L1): Phase 5 quality gate before PRaudit (L2): performance dimension delegationreview (L2): performance patterns detected in diffnpx skills add Rune-kit/rune --skill perfHow clear and easy to understand the SKILL.md instructions are, rated from 1 to 5.
Clear and well structured, with only minor parts that might need a second read.
How directly an agent can act on the SKILL.md instructions, rated from 1 to 5.
Mostly actionable with clear steps; only a few small gaps remain.