Testing & Quality skills
Browse reusable Agent Skills, each with a clear purpose and practical guidance.
contrib-pr-review
Review a contribution PR for safety, quality, and readiness. Checks for security concerns, test coverage, size appropriateness, and intent alignment. Use when reviewing external contributions.
my-pr-checker
Manage your own GitHub pull requests — check CI status, inline review comments, PR-level comments, resolve review threads, fix issues, and iterate until all checks pass and threads are resolved. Use for managing your own PRs (not external contributions). Triggers on "check my PR", "check PR", "/my-pr-checker <number>".
debug-task
Diagnose and fix moon tasks that are broken, misconfigured, or behaving unexpectedly. Use this skill when a moon task is failing, not running, skipped, hanging, producing stale or wrong output, cached when it shouldn't be, re-running every time when it should be cached, or when outputs are empty or missing after a cache hit. Also covers pipeline hangs and freezes, tasks that only work in CI but not locally (or vice versa), tasks skipped by --affected, and task inheritance not applying to a project. Activate on any mention of "moon run" or "moon task" combined with a problem — errors, stale cache, missing outputs, wrong results, "nothing to do", or unexpected behavior. Also use for task options like persistent, runInCI, allowFailure, affectedFiles, mutex, timeout, or cacheLifetime, and for task checks (requirement, condition, fingerprint) that make a task fail, skip, or re-run, and project-level taskOptions defaults. This skill is for diagnosing existing tasks, not for creating new tasks, setting up workspaces, configuring toolchains, or learning moon concepts.
devtools-source-maps
Guidelines for utilizing source maps and structured stack traces in DevTools. Covers DebuggerWorkspaceBinding, StackTrace, SymbolizedError, and related UI widgets.
devtools-verification
MANDATORY: Activate this skill ANY TIME you need to build the project, run tests, or verify code health in DevTools. You MUST use this skill before executing commands like npm test, npm run build, autoninja, or linters, as it contains critical, repository-specific instructions on how to correctly format these commands, filter test runs, and interpret failures.
fixing-skipped-tests
Use this skill when unskipping a test that was previously skipped.
foundation-test-migration
Migrating unit tests to foundation unit tests using TestUniverse and devtools_foundation_module. Use when moving tests away from DOM-heavy helpers like describeWithEnvironment or describeWithMockConnection.
repro-flaky-test
Reproduce and investigate flakiness in a test.
ui-eng-vision-test-scaffolder
Scaffolds unit tests and screenshot tests to establish visual and functional rendering baselines for views before refactoring.