perf-pass
Skill0 starsChanged 15 days agoNo licenceView on GitHub
Find and fix performance problems, keeping only the changes that measurements show are faster and tests show are still correct. Measure mode (a named slow endpoint, command, page, query, job or function) builds a repeatable benchmark at realistic sizes, records median, spread and memory, profiles with installed profilers, and fixes the top costs one at a time, keeping a fix only if it beats the run-to-run noise with the same output and passing tests. Scan mode looks for antipatterns such as N+1 queries, queries in loops, missing indexes, unbounded queries, quadratic loops, blocking I/O in async code, sequential awaits, missing batching, heavy bundles and React re-renders, and measures the top ones before proposing a fix. Caching, concurrency, indexes and pagination need a yes each. Use when something is slow or the user asks to speed up, optimize, profile or benchmark code, or invokes /perf-pass (options --scan, --bench, --runs, --report-only, --auto, --models). Never benchmarks production. Commits nothing.
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4 other projects use a version of this.
Adopted by
Most recently taken up by
- lxsmnsyc/agent-skillstheir own version, first seen Nov 8, 2026
- Alfred-Lau/skillstheir own version, first seen Oct 20, 2026
- bt2go/claude-skillstheir own version, first seen Aug 1, 2026
- ccpowerpack/claude-code-skillstheir own version, first seen Jul 3, 2026
Other versions4 projects use a version of this.
Word for word · 0
None found.
Edited · 0
None found.
Wrote their own version · 4
- lxsmnsyc/agent-skills★ 4same name
- Alfred-Lau/skills★ 1same name
- bt2go/claude-skills★ 0same name
- ccpowerpack/claude-code-skills★ 0same name
How matches are found. Word for word: the exact same text. Edited: shares passages with this file (“99% same” means 99% of its five-word phrases also appear here; 10% or more counts). Their own version: similar meaning, or, weakest, the same name. We can’t tell which project had it first. Projects are counted among the 200 most-starred candidates, and mentions are links to the repository we found, up to 50 per site, so both counts are a floor.
In this repository12 other files it gives its agents.
- conventionsSkill
- deep-reviewSkill
- dep-hygieneSkill
- deslopSkill
- error-pathsSkill
- guided-reviewSkill
- hotspotsSkill
- pr-reviewSkill
- sdlc-fast-piSkill
- sdlc-fastSkill
- sdlc-loopSkill
- test-strengthSkill
The file
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We split this skill into the rules it gives an agent
19 rules. 0 are common, 11 are distinctive, and 8 are very specific to this project.
0
Common
Most of the 4 edited versions we read keep these.
11
Distinctive
This author's own choices. Worth a look.
8
Very specific
Tied to their project's names, files or tools. Probably skip.
No licence file, so all rights are reserved — read it at the source. We count its rules but don't quote them. Read them on GitHub.
“Common” is measured: kept by at least 6 in 10 of the 4 edited versions of this file we could read. “Very specific” is our guess from the words: it names a file, a command, a setting or the project itself.
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