Testing & Quality skills

Browse reusable Agent Skills, each with a clear purpose and practical guidance.

utm-review

Review pending UTM changes before they are submitted. Runs a standard correctness/quality code review of the current branch's diff AND audits it against UTM's contribution rules in CONTRIBUTING.md and AGENTS.md — scope discipline, commit/PR format, AI attribution, logging hooks, generated files, UI/design philosophy, and platform compatibility. Use this before opening or updating a UTM pull request, whenever the user asks to review UTM changes, or when the user runs /utm-review. The /utm-submit workflow expects this to have been run on the current changes first.

34.69k repo starsObserved in 1 repos
Testing & Quality
GitHub

codspeed-optimize

Autonomously optimize code for performance using CodSpeed benchmarks, flamegraph analysis, and iterative improvement. Use this skill whenever the user wants to make code faster, reduce CPU usage, optimize memory, improve throughput, find performance bottlenecks, or asks to 'optimize', 'speed up', 'make faster', 'reduce latency', 'improve performance', or points at a CodSpeed benchmark result wanting improvements. Also trigger when the user mentions a slow function, a regression, or wants to understand where time is spent in their code.

34.25k repo starsObserved in 1 repos
Testing & Quality
GitHub

Prek

Instructions for running prek, the Carbon pre-submit/style/lint checker, that *MUST* be run before submitting an change.

33.92k repo starsObserved in 1 repos
Testing & Quality
GitHub

Summarize testdata changes

Instructions for summarizing changes to Carbon testdata files (`toolchain/*/testdata`).

33.92k repo starsObserved in 1 repos
Testing & Quality
GitHub

Toolchain tests

Instructions for authoring, structuring, and running toolchain tests using the file_test infrastructure.

33.92k repo starsObserved in 1 repos
Testing & Quality
GitHub

fix-issue

Fix a reported issue in Remix from a GitHub issue. Use when the user provides a GitHub issue URL and asks to fix a bug, investigate an issue, or reproduce a problem. Handles the full workflow: fetching the issue, finding the reproduction, writing a failing test, and implementing the fix.

33.21k repo starsObserved in 1 repos
Testing & Quality
GitHub

review-pr

Review Remix pull requests from a local development checkout. Use when asked to review a PR, inspect a pull request diff, or produce a thorough reviewer-style assessment.

33.21k repo starsObserved in 1 repos
Testing & Quality
GitHub

write-tests

Write, refactor, or review tests in the Remix repository. Use when adding or changing `.test.ts`/`.test.tsx` files, package test scripts, test fixtures, mocks, coverage tests, e2e tests, or package metadata for test-only dependencies.

33.21k repo starsObserved in 1 repos
Testing & Quality
GitHub

reduce-unoptimized-query-oracle

Reduce an unoptimized-query-oracle test failure log to the simplest possible reproduction case. Use when you have unoptimized-query-oracle*.log files from a failed roachtest and need to find the minimal SQL to reproduce the bug.

32.30k repo starsObserved in 3 repos
Testing & Quality
GitHub

ui-visual-regression

Automates visual regression testing for DB Console UI changes. Compares screenshots and network requests between the current branch and its merge base using roachprod, playwright-cli, and ImageMagick. Use when the user wants to verify UI changes haven't introduced visual or behavioral regressions.

32.30k repo starsObserved in 3 repos
Testing & Quality
GitHub