Development

Watch a screen recording or any video and judge what a screenshot cannot show — an animation, a transition, a flow, a gesture response, or simply what happens in a video someone handed you. Use when the question is temporal ("does this animation glitch?", "did the fix actually work?", "what happens in this clip?", "why does this screen feel wrong?"), when a UI change animates, or when a user supplies a video file, a screen recording or a video URL. A still frame shows a moment; only a recordi...

Watch a screen recording or any video and judge what a screenshot cannot show — an animation, a transition, a flow, a gesture response, or simply what happens in a video someone handed you. Use when the question is temporal ("does this animation glitch?", "did the fix actually work?", "what happens in this clip?", "why does this screen feel wrong?"), when a UI change animates, or when a user supplies a video file, a screen recording or a video URL. A still frame shows a moment; only a recordi...

Watch a screen recording or any video and judge what a screenshot cannot show — an animation, a transition, a flow, a gesture response, or simply what happens in a video someone handed you. Use when the question is temporal ("does this animation glitch?", "did the fix actually work?", "what happens in this clip?", "why does this screen feel wrong?"), when a UI change animates, or when a user supplies a video file, a screen recording or a video URL. A still frame shows a moment; only a recordi...

Diagnose PostHog Surveys configuration and responses across all five SDKs (web/posthog-js, iOS, Android, Flutter, React Native). Use whenever a Surveys support ticket is pasted ("survey not showing", "fewer responses than expected", "responses disappeared", "responses are incomplete", "only the first question was answered", "the user says they didn't mean to submit", "survey shows on wrong platform"), or when diagnosing why a survey does or doesn't display. Covers the eligibility pipeline, ho...

Write Domain-Driven Design code in FastAPI / Python — bounded contexts as packages with four layers, aggregates as plain classes with behavior, value objects as frozen dataclasses, application services, repository ports with async SQLAlchemy adapters and Alembic migrations, domain events, anti-corruption layers, and the REST interface with Pydantic schemas. Use when implementing or refactoring a FastAPI service around business rules, structuring a new bounded context in Python, or pulling bus...

The two standing parts of a dispatch run: the brief every worker follows to carry its ticket to a merged pull request, and what the dispatching session does while they work (watch the run's pull requests with `scripts/orchestrate.ts watch-prs`, act on the line the watch exits with, clean the run's worktrees once every pull request is closed). A dispatching session names this skill in each worker prompt and invokes it itself right after dispatching one worker per ticket; a worker invokes it wh...

Cross-stack selector and test-id policy for web and mobile automation. Use when writing or reviewing E2E/UI test locators, or adding data-testid/accessibility identifiers to components.

Cross-stack selector and test-id policy for web and mobile automation. Use when writing or reviewing E2E/UI test locators, or adding data-testid/accessibility identifiers to components.

Cross-stack selector and test-id policy for web and mobile automation. Use when writing or reviewing E2E/UI test locators, or adding data-testid/accessibility identifiers to components.

Cross-stack selector and test-id policy for web and mobile automation. Use when writing or reviewing E2E/UI test locators, or adding data-testid/accessibility identifiers to components.

Control Spotify playback and search the library and playlists. Use when: spotify, music, playlist, play, pause, or what's playing.

Read schedules, check availability, and create or update Google Calendar events when the user asks to work with their calendar.

Control Spotify playback and search the library and playlists. Use when: spotify, music, playlist, play, pause, or what's playing.

Read schedules, check availability, and create or update Google Calendar events when the user asks to work with their calendar.

Control Spotify playback and search the library and playlists. Use when: spotify, music, playlist, play, pause, or what's playing.

Read schedules, check availability, and create or update Google Calendar events when the user asks to work with their calendar.

Trigger: bench, journey, journeys, driven mode, gentle-ai-bench, journey corpus, j-numbers, bench axis. Author and verify gentle-ai bench journeys; go test ./bench never proves driven execution.

Trigger: bench, journey, journeys, driven mode, gentle-ai-bench, journey corpus, j-numbers, bench axis. Author and verify gentle-ai bench journeys; go test ./bench never proves driven execution.

Generates a VBA macro to parse movie details (Title, Distributor, Approvals, Copies) from a specific text format in Excel Column A and output them to adjacent columns.

Implements a Leaflet.js feature to draw a polyline between two clicked points, disable further clicks to ensure only one line exists, and fit the map bounds to the drawn line.

TypeScript best practices for React development. Use when writing typed React components, hooks, events, refs, or generic components. Triggers on tasks involving TypeScript errors, type definitions, props typing, or type-safe React patterns.

React Query and Zustand patterns for state management. Use when implementing data fetching, caching, mutations, or client-side state. Triggers on tasks involving useQuery, useMutation, Zustand stores, caching, or state management.

SEO patterns, conventions, and audit for web applications. Use when implementing meta tags, structured data, Core Web Vitals, sitemaps, Open Graph, auditing SEO, or optimizing pages for search engines. Triggers on "audit SEO", "check SEO", "review SEO", or tasks involving search optimization, schema markup, or social sharing meta tags.

React and Vite performance optimization guidelines. Use when writing, reviewing, or optimizing React components built with Vite. Triggers on tasks involving Vite configuration, build optimization, code splitting, lazy loading, HMR, bundle size, or React performance.