Build agentic AI with OpenAI Responses API - stateful conversations with preserved reasoning, built-in tools (Code Interpreter, File Search, Web Search), and MCP integration. Prevents 11 documented errors. Use when: building agents with persistent reasoning, using server-side tools, or migrating from Chat Completions/Assistants for better multi-turn performance.
Install with Tessl CLI
npx tessl i github:jezweb/claude-skills --skill openai-responses75
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npx tessl skill review --optimize ./path/to/skillValidation for skill structure
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