Migrate Python OpenAI Agents SDK applications to Pydantic AI and, when warranted, Pydantic AI Harness. Use for `agents.Agent`, `Runner`, function tools, handoffs, guardrails, sessions, human approval, streaming, or `SandboxAgent`. Do not use for applications built directly on the OpenAI Responses API without the Agents SDK runtime.
Install
npx skills add pydantic/skills --skill migrating-openai-agents-sdk-to-pydantic-ainpx skills add pydantic/skills --skill migrating-openai-agents-sdk-to-pydantic-ai -a claude-code -gnpx skills add pydantic/skills --skill migrating-openai-agents-sdk-to-pydantic-ai -a codex -ggemini skills install https://github.com/pydantic/skills.git --path skills/migrating-openai-agents-sdk-to-pydantic-aigh skill install pydantic/skills migrating-openai-agents-sdk-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-openai-agents-sdk-to-pydantic-ai ~/.claude/skills/migrating-openai-agents-sdk-to-pydantic-ai # Claude Code
cp -R /tmp/pydantic__skills/skills/migrating-openai-agents-sdk-to-pydantic-ai ~/.agents/skills/migrating-openai-agents-sdk-to-pydantic-ai # Codex, Cursor, Gemini CLI, Copilot, OpenCode