# Langgraph Hitl

> Human-in-the-loop integration for LangGraph workflows with approval and intervention points

- Skill: `a5c-ai/langgraph-hitl` (Agent Skill, multi-file: 2 files)
- Install (CLI): `npx skillmds@latest add a5c-ai/langgraph-hitl`
- Raw SKILL.md: https://api.skillmd.com/api/skills/a5c-ai/langgraph-hitl/raw
- Safety review: pending (external: skill-scanner PASS, skillspector PASS)
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Integrations & APIs
- Author: a5c-ai (https://skillmd.com/u/a5c-ai)
- Updated: 2026-09-09
- Page: https://skillmd.com/skills/a5c-ai/langgraph-hitl

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# 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)