Code Gen
Generate code, boilerplate, scaffolding
testing-core-processors
by mastra-ai
Use when writing or debugging integration tests for error processors in packages/core/src/processors/. Covers the MockLanguageModelV2 pattern for simulating API errors and verifying retry behavior, plus the build prerequisites for focused vitest runs.
mastra
by mastra-ai
Mastra is the modern TypeScript framework for AI-powered applications and agents.
claude-opus-4-5-migration
by anthropics
Migrate prompts and code from Claude Sonnet 4.0, Sonnet 4.5, or Opus 4.1 to Opus 4.5. Use when the user wants to update their codebase, prompts, or API calls to use Opus 4.5. Handles model string updates and prompt adjustments for known Opus 4.5 behavioral differences. Does NOT migrate Haiku 4.5.
cli
by lobehub
LobeHub CLI (@lobehub/cli) development guide — commands, subcommands, architecture.
trpc-router
by lobehub
'TRPC router development guide. Use when creating or modifying apps/server/src/routers, adding procedures, or implementing server-side API endpoints.'
pr
by lobehub
"Create a PR for the current branch (targets canary by default), including splitting one cross-layer branch into ordered stacked PRs so a lower layer (db / shared package / server TRPC) merges before its callers (desktop / CLI / UI). Use when the user asks to create / submit a PR, or to split a branch because clients call a server contract that isn't on the trunk yet. Triggers on 'pr', 'create pr', 'submit pr', 'open a PR', 'pull request', 'split this PR', 'stacked PR', 'backend should merge first', '提 PR', '提个 PR', '新建 PR', '拆 PR', '后端先合', '分层合并'."
db-migrations
by lobehub
'Use for database rollout strategy, Drizzle migrations, online index creation, data backfills, migration regeneration, sequence conflicts after rebase, idempotent SQL review, or migration renames.'
data-fetching-architecture
by lobehub
'LobeHub data-fetching pipeline guide. Use for service layer, Zustand store, SWR, lambdaClient, useClientDataSWR, useFetchXxx hooks, or migrating useEffect fetches.'
fullstack-developer
by Shubhamsaboo
Modern web development expertise covering React, Node.js, databases, and full-stack architecture. Use when: building web applications, developing APIs, creating frontends, setting up databases, deploying web apps, or when user mentions React, Next.js, Express, REST API, GraphQL, MongoDB, PostgreSQL, or full-stack development.
python-expert
by Shubhamsaboo
Senior Python developer expertise for writing clean, efficient, and well-documented code. Use when: writing Python code, optimizing Python scripts, reviewing Python code for best practices, debugging Python issues, implementing type hints, or when user mentions Python, PEP 8, or needs help with Python data structures and algorithms.
ux-designer
by Shubhamsaboo
Expert UX design assistance for user research, wireframing, prototyping, and design strategy. Use when: creating wireframes, conducting user research, building prototypes, designing user flows, writing UX copy, reviewing designs for usability, creating personas, planning usability tests, or when user mentions UX design, user experience, wireframes, prototypes, user research, information architecture, or design systems.
frontend-design
by anthropics
Create distinctive, production-grade frontend interfaces with high design quality. Use this skill when the user asks to build web components, pages, artifacts, posters, or applications (examples include websites, landing pages, dashboards, React components, HTML/CSS layouts, or when styling/beautifying any web UI). Generates creative, polished code and UI design that avoids generic AI aesthetics.
github-copilot-upgrader
by microsoft
Use this to update the Github Copilot CLI/SDK
project-setup-info-context7
by microsoft
"Comprehensive setup steps to help the user create complete project structures in a VS Code workspace. This tool is designed for full project initialization and scaffolding, not for creating individual files. When to use this tool: when the user wants to create a new complete project from scratch; when setting up entire project frameworks (TypeScript projects, React apps, Node.js servers, etc.); when initializing Model Context Protocol (MCP) servers with full structure; when creating VS Code extensions with proper scaffolding; when setting up Next.js, Vite, or other framework-based projects; when the user asks for \"new project\", \"create a workspace\", or \"set up a [framework] project\"; when you need to establish a complete development environment with dependencies, config files, and folder structure. When NOT to use this tool: when creating single files or small code snippets; when adding individual files to existing projects; when making modifications to existing codebases; when the user asks to \"create a file\" or \"add a component\"; for simple code examples or demonstrations; for debugging or fixing existing code. This tool provides complete project setup including folder structure creation, package.json and dependency management, configuration files (tsconfig, eslint, etc.), initial boilerplate code, development environment setup, and build and run instructions. Use other file creation tools for individual files within existing projects."
create-agent
by microsoft
'Create a custom agent (.agent.md) for a specific job.'
policy-and-managed-settings
by microsoft
Use whenever adding, modifying, or reviewing any Copilot, agent, LLM, AI, tool, permission, sandbox, MCP, model, telemetry, feature-gate, setting, configuration, or enterprise control—especially anything an organization or administrator may need to manage. Start here to decide whether it belongs in runtime managed settings, a typed SDK contract, VS Code configuration policy, extension policy, or a split implementation. Run on every new Copilot/agent/LLM control and ANY change that adds a policy: field.
generate-run-commands
by microsoft
Generate or modify run commands for the current session. Use when the user wants to set up or update run commands that appear in the session's Run button.
create-skill
by microsoft
'Create a reusable skill (SKILL.md) that packages a workflow.'
create-hook
by microsoft
'Create a hook (.json) to enforce policy or automate agent lifecycle events.'
update-skills
by microsoft
Create or update repository skills and instructions when major learnings are discovered during a session. Use when the user says "learn!", when a significant pattern or pitfall is identified, or when reusable domain knowledge should be captured for future sessions.
create-instructions
by microsoft
'Create an instructions file (.instructions.md) for a project rule or convention.'
create-prompt
by microsoft
'Create a reusable prompt file (.prompt.md) for a common task.'
init
by microsoft
Generate or update chat customization files for AI coding agents
north-star-metric
by phuryn
"Define a North Star Metric and 3-5 supporting input metrics that form a metrics constellation. Classify the business game (Attention, Transaction, Productivity) and validate against 7 criteria for an effective North Star. Use when choosing a North Star Metric, setting up a metrics framework, learning about the North Star Framework, or deciding what to measure."