langgraph-hitl

# LangGraph Human-in-the-Loop Skill ## Capabilities - Implement interrupt points in LangGraph workflows - Configure human approval gates - Design intervention interfaces - Handle workflow resumption after human input - Implement timeout and escalation logic - Create notification systems for pending approvals ## Target Processes - langgraph-workflow-design - tool-safety-validation ## Implementation Details ### HITL Patterns 1. **Interrupt Before**: Pause before node execution 2. **Interrupt After**: Pause after node for review 3. **Conditional Interrupt**: Context-based pausing 4. **Tool Call Approval**: Review tool invocations ### Configuration Options - Interrupt node selection - Approval timeout settings - Escalation paths - Notification channels - State modification permissions ### Best Practices - Clear approval prompts - Reasonable timeout defaults - Proper escalation chains - Audit logging for approvals ### Dependencies - langgraph - langgraph-checkpoint (for persistence)