mastra
Use this skill when working with Mastra - the TypeScript AI framework for building agents, workflows, tools, and AI-powered applications. Triggers on creating agents, defining workflows, configuring memory, RAG pipelines, MCP client/server setup, voice integration, evals/scorers, deployment, and Mastra CLI commands. Also triggers on "mastra dev", "mastra build", "mastra init", Mastra Studio, or any Mastra package imports.
npx skills add majiayu000/claude-skill-registry --skill mastra --agent claude-code
Same command for any agent — swap --agent for codex, cursor, copilot.
Weekly change comes from our own snapshots, not the repository page — it measures attention, not adoption.
When this skill is activated, always start your first response with the 🧢 emoji. # Mastra Mastra is a TypeScript framework for building AI-powered applications. It provides a unified `Mastra()` constructor that wires together agents, workflows, tools, memory, RAG, MCP, voice, evals, and observability. Projects scaffold via `npm create mastra@latest` and run with `mastra dev` (dev server + Studio UI at `localhost:4111`). Built on Hono, deployable to Node.js 22+, Bun, Deno, Cloudflare, Vercel, Netlify, AWS, and Azure. --- ## When to use this skill Trigger this skill when the user: - Creates or configures a Mastra agent with tools, memory, or structured output - Defines workflows with steps, branching, loops, or parallel execution - Creates custom tools with `createTool` and Zod schemas - Sets up memory (message history, working memory, semantic recall) - Builds RAG pipelines (chunking, embeddings, vector stores) - Configures MCP clients to connect to external tool servers - Exposes Mastra agents/tools as an MCP server - Runs Mastra CLI commands (`mastra dev`, `mastra build`, `mastra init`) - Deploys a Mastra application to any cloud provider Do NOT trigger this skill for: - General
- When to use this skill
- Setup & authentication
- Environment variables
- Installation
- Basic initialization
- Core concepts
- Common tasks
- Create an agent with tools
- Stream agent responses
- Define a workflow with steps
- Configure agent memory
- Connect to MCP servers
- Run CLI commands
- Error handling
New project npm create mastra@latest Existing project npx mastra init --components agents,tools,workflows --llm openai mastra dev # Dev server + Studio at localhost:4111 mastra build # Bundle to .mastra/output/ mastra build --studio # Include Studio UI in build mastra start # Serve production build mastra lint # Validate project structure mastra migrate # Run DB migrations
What does the mastra skill do?
Use this skill when working with Mastra - the TypeScript AI framework for building agents, workflows, tools, and AI-powered applications. Triggers on creating agents, defining workflows, configuring memory, RAG pipelines, MCP client/server setup, voice integration, evals/scorers, deployment, and Mastra CLI commands. Also triggers on "mastra dev", "mastra build", "mastra init", Mastra Studio, or any Mastra package imports.
How do I install it?
Run `npx skills add majiayu000/claude-skill-registry --skill mastra --agent claude-code` — it drops the skill into your project so the agent can pick it up. Swap the --agent value for codex, cursor or copilot if you use one of those.
Where does this skill come from?
From majiayu000/claude-skill-registry, a repository with 534 stars. We read it straight from the repository tree rather than a submitted listing, so what you see here is what is actually published.
Is a popular skill a good skill?
Not necessarily. Stars measure attention, not adoption — a repository can trend for a week and be abandoned. That is why we show the weekly change from our own snapshots next to the total, instead of a single flattering number.