mastra は何をしますか？
From the team behind Gatsby, Mastra is a framework for building AI-powered applications and agents with a modern TypeScript stack.
Source: https://github.com/mastra-ai/mastra
Pushed: 2026-05-12T10:17:54Z Stars: 23797
From the team behind Gatsby, Mastra is a framework for building AI-powered applications and agents with a modern TypeScript stack.
mastra is a Claude Code agent skill that from the team behind Gatsby, Mastra is a framework for building AI-powered applications and agents with a modern TypeScript stack.
npx skills add mastra-ai/mastraFrom the team behind Gatsby, Mastra is a framework for building AI-powered applications and agents with a modern TypeScript stack.
Source: https://github.com/mastra-ai/mastra
Pushed: 2026-05-12T10:17:54Z Stars: 23797
This repo contains 5 individual skills — each has its own dedicated page.
REQUIRED when modifying any file in packages/playground-ui or packages/playground. Triggers on: React component creation/modification/refactoring, UI changes, new playground features, bug fixes affecting studio UI. Generates Playwright E2E tests that validate PRODUCT BEHAVIOR, not just UI states.
Interactive planning assistant that helps create focused, well-structured ralph-loop commands through collaborative conversation
React performance optimization guidelines from Mastra Engineering. This skill should be used when writing, reviewing, or refactoring React code to ensure optimal performance patterns. Triggers on tasks involving React components, data fetching, bundle optimization, or performance improvements.
Create a Mastra project using create-mastra and smoke test the studio in Chrome using Chrome MCP server
Tailwind CSS styling guidelines for Mastra Playground UI. This skill should be used when writing, reviewing, or refactoring styling code in packages/playground-ui and packages/playground to ensure design system consistency. Triggers on tasks involving Tailwind classes, component styling, or design tokens.
ElevenLabs text-to-speech with mac-style say UX.
Oracle CLI second-model review/debug/refactor/design with selected files, dry-run token checks, API or browser engine.
Capture and automate macOS UI with the Peekaboo CLI.
Generate multiple radically different interface designs for a module using parallel sub-agents. Use when user wants to design an API, explore interface options, compare module shapes, or mentions "design it twice".
Build a throwaway prototype to flesh out a design — a runnable terminal app for state/business-logic questions, or several radically different UI variations toggleable from one route.
Interview the user relentlessly about a plan or design until reaching shared understanding, resolving each branch of the decision tree. Use when user wants to stress-test a plan, get grilled on their design, or mentions "grill me".