Migrate TypeScript Mastra applications to Python with Pydantic AI and, only when needed, Pydantic AI Harness. Use when source code imports `@mastra/*` or relies on Mastra agents, tools, workflows, memory, processors, streaming, approvals, skills, or subagents.
Install
npx skills add pydantic/skills --skill migrating-mastra-to-pydantic-ainpx skills add pydantic/skills --skill migrating-mastra-to-pydantic-ai -a claude-code -gnpx skills add pydantic/skills --skill migrating-mastra-to-pydantic-ai -a codex -ggemini skills install https://github.com/pydantic/skills.git --path skills/migrating-mastra-to-pydantic-aigh skill install pydantic/skills migrating-mastra-to-pydantic-aigit clone --depth 1 https://github.com/pydantic/skills /tmp/pydantic__skills
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/pydantic__skills/skills/migrating-mastra-to-pydantic-ai ~/.claude/skills/migrating-mastra-to-pydantic-ai # Claude Code
cp -R /tmp/pydantic__skills/skills/migrating-mastra-to-pydantic-ai ~/.agents/skills/migrating-mastra-to-pydantic-ai # Codex, Cursor, Gemini CLI, Copilot, OpenCode