Discovers, searches, and installs skills from multiple AI agent skill marketplaces (400K+ skills) using the SkillKit CLI. Supports browsing official partner collections (Anthropic, Vercel, Supabase, Stripe, and more) and community repositories, searching by domain or technology, and installing specific skills from GitHub. Use when the user wants to find, browse, or install new agent skills, plugins, extensions, or add-ons; asks 'is there a skill for X' or 'find a skill for X'; wants to explore a skill store or marketplace; needs to extend agent capabilities in areas like React, testing, DevOps, security, or APIs; or says 'browse skills', 'search skill marketplace', 'install a skill', or 'what skills are available'.

Applies proven testing patterns — Arrange-Act-Assert (AAA), Given-When-Then, Test Data Builders, Object Mother, parameterized tests, fixtures, spies, and test doubles — to help write maintainable, reliable, and readable test suites. Use when the user asks about writing unit tests, integration tests, or end-to-end tests; structuring test cases or test suites; applying TDD or BDD practices; working with mocks, stubs, spies, or fakes; improving test coverage or reducing flakiness; or needs guidance on test organization, naming conventions, or assertions in frameworks like Jest, Vitest, pytest, or similar.

Final visual polish for an existing UI without redesigning it. Use after structure is clear, when asked to improve spacing, alignment, text hierarchy, readability, shadows, highlights, effects, action placement, or overall production feel. For screen structure, layer naming, code handoff, preview scenes, or animation planning, use pencil-ui-structure first.

Best practices for writing, reviewing, and refactoring React Flow / @xyflow/react v12 canvases. Use when work touches React Flow components, custom nodes, custom edges, handles, node data typing, viewport controls, MiniMap/Background/Panel usage, NodeToolbar, NodeResizer, or workflow-builder review tasks.

Convert Pencil `.pen` design files and named Pencil node IDs into production frontend code. Use when asked to implement, migrate, reproduce, or refine a Pencil/Figma-like visual design in code, especially for responsive artboards, glassmorphism, typography matching, background image layers, design tokens, or visual fidelity debugging against Pencil node IDs.

Comprehensive guide for BlazeMeter Service Virtualization, including virtual services, transactions, templates, and management. Use when working with Service Virtualization for (1) Creating virtual services and transactions, (2) Managing services (clone, export/import, rename/delete), (3) Using templates and environment variables, (4) Adding processing actions to transactions, (5) Using test data with virtual services, (6) Understanding transactional analytics, or any other Service Virtualization tasks.

Use when opening, formatting, and standardizing Pull Requests with GitHub CLI gh commands, PR templates, and review checklists.

Read and search GitHub repository documentation via gitmcp.io MCP service. **WHEN TO USE:** - User provides a GitHub URL - User mentions a specific repo in owner/repo format - User asks "what does this repo do?", "read the docs for X repo", or similar - User wants to search code or docs within a repo

Create a Product Requirements Document using a comprehensive 8-section template covering problem, objectives, segments, value propositions, solution, and release planning. Use when writing a PRD, documenting product requirements, preparing a feature spec, or reviewing an existing PRD.

Shifts thinking from tactical to strategic using Anneka Gupta's frameworks for becoming more strategic. Use when escaping feature factory, moving from output to outcomes, or communicating strategic value.

Decides when quality matters vs move fast, based on Dylan Field (Figma) craft philosophy and Brian Chesky (Airbnb) details obsession. Use when balancing shipping speed with excellence, deciding if refactoring is needed, or determining which details create moats vs which to skip.

Structures difficult decisions using Annie Duke's probabilistic thinking and Ben Horowitz's hard decisions frameworks. Use when facing tough choices, applying expected value thinking, or reducing decision paralysis with regret minimization and pre-mortems.

Create and register Stimulus controllers for interactive JavaScript features. Use when adding client-side interactivity, dynamic UI updates, or when the user mentions Stimulus controllers or JavaScript behavior.

AgentCall (agentcall.dev) — Join a video meeting (Google Meet, Teams, Zoom) as an AI bot with voice and visual presence. Supports audio-only mode with voice intelligence (barge-in, interruptions), text-to-speech mode, and webpage modes for custom UI. Use when asked to join a call, attend a meeting, or participate in a video conference.

Refersion integration. Manage Affiliates, Products, Offers. Use when the user wants to interact with Refersion data.

IdentityCheck integration. Manage Users, Roles, Organizations, Persons, Leads, Deals and more. Use when the user wants to interact with IdentityCheck data.

Hive integration. Manage Users, Projects, Actions, Notes, Files, Activities and more. Use when the user wants to interact with Hive data.

Enigma integration. Manage Deals, Persons, Organizations, Leads, Projects, Activities and more. Use when the user wants to interact with Enigma data.

Feishu collaborator and permission workflows. Activate when the user explicitly asks to inspect or change sharing, permissions, or collaborators.

Feishu document read/write workflows. Activate when the user mentions Feishu docs, cloud docs, or docx links.