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langgraph-human-in-the-loop

Pause and resume LangGraph workflows with human input via interrupt().

2|Updated Sep 9, 2024
Search Tags:#workflow#resume#langgraph#human-in-the-loop#approval#interrupt
One-click install
npx skills add https://github.com/ThiNepo/prompt-caller --skill langgraph-human-in-the-loop-thinepo
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: langgraph-human-in-the-loop
Source: https://github.com/ThiNepo/prompt-caller/tree/main/.continue/skills/langgraph-human-in-the-loop
Command: npx skills add https://github.com/ThiNepo/prompt-caller --skill langgraph-human-in-the-loop-thinepo

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

This Skill enables seamless integration of human feedback and decision-making into LangGraph workflows, allowing for approvals, validation, and error handling at critical junctures.

Core Features & Use Cases

  • Interrupt and Resume: Pause graph execution to surface information or requests to a user, and resume with their input.
  • Approval Workflows: Implement multi-step processes requiring human sign-off before proceeding.
  • Validation Loops: Ensure user input meets specific criteria by re-prompting until valid.
  • Use Case: An agent drafting an important email can pause execution using this skill, present the draft to a human for review, and resume only after receiving approval or edits.

Quick Start

Use the langgraph-human-in-the-loop skill to pause execution and ask for user approval on a draft response.

Frequently Asked Questions about langgraph-human-in-the-loop

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I pause and resume LangGraph execution for human approval?▼

To pause and resume LangGraph execution for human approval, you use the interrupt() function to halt the workflow, surface data to the user, and then resume using Command(resume=...). Checkpointers and thread IDs manage the state during the pause.

What is human-in-the-loop workflow control in LangGraph?▼

Human-in-the-loop workflow control in LangGraph is a mechanism that integrates human feedback into automated processes. It enables pausing execution at critical junctures to surface information, allowing for human validation, approvals, and user-fixable error handling before resuming.

How do I implement validation loops that re-prompt until user input is valid in LangGraph?▼

You implement validation loops in LangGraph by pausing execution to surface a request for user input, then resuming with Command(resume=...). If the input fails specific criteria, the workflow re-prompts the user until valid data is received.

Can LangGraph handle user-fixable errors by interrupting the workflow?▼

Yes, LangGraph handles user-fixable errors by interrupting the workflow. It pauses graph execution to surface the error information to the user, waits for corrective input, and then resumes execution based on the user's commands.

Does LangGraph human-in-the-loop support checkpointer and thread ID state management?▼

Yes, LangGraph human-in-the-loop supports checkpointer and thread ID state management. These components ensure robust workflow control by maintaining execution state across pauses and resumes during human validation steps.

When should I use interrupt() in a LangGraph agent workflow?▼

Use interrupt() in a LangGraph agent workflow when an agent reaches a critical juncture requiring human sign-off, such as drafting an important email. It pauses execution to present the draft for review and resumes only after receiving approval or edits.

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