perf-regression-triage

perf-regression-triage is a Bug triage & fixing skill for AI agents, published by mozilla-firefox in the firefox repository on GitHub. Skillspace rates perf-regression-triage D (55/100) and it passed the safety scan; the rating is based on static analysis only.

Handle a Perfherder performance regression bug end to end: read the alert bug, confirm whether the regression is real, find the cause, and iterate to a fix. Use when the user has a Perfherder/browsertime regression bug (the "N% <test> ... regression on <date>" bugs filed in Testing::Performance), needs to establish whether an alert summary is a real regression, is interpreting a PerfCompare baseRev/newRev comparison, or asks what to do about a patch of theirs that regressed a benchmark. Not for simply running perf tests or pushing them to try — including running an alert summary's tests with `mach try perf --alert` (use perftest) — nor for choosing or writing perf tests (use perftest), analyzing a profile you already have in hand (use profiler-analysis), SpiderMonkey microbenchmarks (use js-perf-investigation), or non-performance regressions such as failing tests, crashes, or build bustage.

Grade
D
Quality
55 / 100
Safety
Passed
GitHub stars
13,136

Unproven: rated by static analysis only, not yet compared head-to-head.

This rating describes the version of the repository we crawled; it may have changed since, so go by its current files.

View source on GitHubmozilla-firefox/firefox

Our review

Architecture
84 / 100
Maturity
Basic: a single SKILL.md
Security scan
Low-risk patterns
License
Not declared. Check the repository before reusing it.

What the scanner flagged

  • over-broad allowed-tools ('*')

Not checked yet

  • Category is a classifier prediction; no model has read this skill yet
  • Not judged on the rubric yet (not a contender in its category)
  • No blind task eval yet
  • Scope (portable / vendor / repo-internal) not assessed; only the top of each category is read for scope
  • Sibling files (scripts, references) not fetched; security scan covers SKILL.md only

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