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langchain-middleware

by langchain-ai/langchain-skills

INVOKE THIS SKILL when you need human-in-the-loop approval, custom middleware, or structured output. Covers HumanInTheLoopMiddleware for human approval of…

Skill content

- HumanInTheLoopMiddleware / humanInTheLoopMiddleware: Pause before dangerous tool calls for human approval

- Custom middleware: Intercept tool calls for error handling, logging, retry logic

- Command resume: Continue execution after human decisions (approve, edit, reject)

Requirements: Checkpointer + thread_id config for all HITL workflows.

Human-in-the-Loop
#langchain-skills #langchain-ai
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