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langgraph-subgraph

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Subgraph composition and modular workflow design for LangGraph

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Source SKILL.md: https://github.com/a5c-ai/babysitter/blob/HEAD/library/specializations/ai-agents-conversational/skills/langgraph-subgraph/SKILL.md

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LangGraph Subgraph Skill

Capabilities

  • Design modular subgraph components
  • Compose subgraphs into parent workflows
  • Handle state mapping between graphs
  • Implement subgraph reusability patterns
  • Design subgraph interfaces and contracts
  • Handle subgraph error isolation

Target Processes

  • multi-agent-system
  • langgraph-workflow-design

Implementation Details

Subgraph Patterns

  1. Compiled Subgraphs: Pre-compiled reusable components
  2. State Mapping: Input/output state transformation
  3. Nested Subgraphs: Multi-level graph composition
  4. Parallel Subgraphs: Concurrent subgraph execution

Configuration Options

  • State schema alignment
  • Input/output key mapping
  • Error propagation settings
  • Subgraph checkpoint inheritance
  • Timeout configurations

Best Practices

  • Clear subgraph interfaces
  • Minimal state coupling
  • Proper error boundaries
  • Reusable component design
  • Documentation for subgraph contracts

Dependencies

  • langgraph