Browse reusable Agent Skills, each with a clear purpose and practical guidance.
Run comprehensive UI tests for the Image Studio feature. Covers Media Library entry points, Edit Mode, Generate Mode, Block Editor integration, navigation, and delete. Use when running the full UI smoke test or testing any Image Studio surface.
Use when reviewing PRs that touch the Reader's multi-protocol social surfaces (`client/reader/social/`, `client/reader/atmosphere/`, `client/reader/mastodon/`, `packages/api-core/src/reader-{atmosphere,mastodon}/`, `packages/api-queries/src/reader-{atmosphere,mastodon}.ts`). Captures the review rubric + the recurring smells from the CM-625 / CM-658 / CM-660 / CM-662 slice cycle.
Keep packages/radix-ui (fumadocs-ui) and packages/base-ui in sync. Use when editing either package, adding features, or fixing bugs so both UI variants stay consistent.
Performs an accessibility code review of a local diff or Phabricator revision in the style of the Firefox accessibility team. Use this skill whenever the user asks to review a Phabricator patch or revision for accessibility issues, mentions a D-number (like D284142) in the context of accessibility review, asks "does this patch have any a11y issues", or wants to check a diff against accessibility guidelines. Also use it when the user says things like "can you review this for a11y", "check this patch", or "give me an accessibility review of D[number]". Invoke proactively when the user pastes a phabricator.services.mozilla.com URL or shares a revision ID alongside any accessibility concern. Invoke when questions about the following topics are raised: aria properties, aria roles, high contrast mode, forced colors, prefers contrast, focus order, screen readers, assistive technology.
File a Bugzilla bug for Firefox/Gecko work, or draft a bug summary and description. Use when the user asks to file a bug, wants a bug summary/description for a change, or needs to report a defect/enhancement/task. Determines the product and component with `mach file-info`, drafts the summary and description, and opens a prefilled enter_bug.cgi form in the browser for the user to submit.
Expert skill for G2 legend development - provides comprehensive knowledge about legend rendering implementation, component architecture, layout algorithms, and interaction handling. Use when implementing, customizing, or debugging legend functionality in G2 visualizations.
Use webspec-index to query WHATWG, W3C, IETF and TC39 web specifications from the command line
Guide for creating new Android gradle modules in the android-components project.
Use this skill when the user wants to file good-first-bugs in Bugzilla for Firefox. A good-first-bug is a narrow, self-contained, low-risk task scoped so a first-time contributor can land it without deep context. Sources include lint warnings, small typos, dead-code removal, mechanical refactors, docs conversions, or any other small task the user points at. Produces prefilled `enter_bug.cgi` URLs the user clicks to submit. Trigger on phrases like "file a good first bug", "open good first bugs for X", "create a good-first-bug from this".