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Langgraph Fundamentals
Represent an agent workflow through explicit graph state, nodes and transitions.
Editorial note checked 2026-10-29 against this instruction snapshot. Supporting scripts and runtime behavior remain outside this editorial review.
What it does
The guide covers StateGraph, schemas, conditional execution, streaming and error behavior. It is useful when control flow needs to be inspectable instead of hidden in one prompt loop.
Best for
Developers implementing a stateful LangGraph workflow.
Tradeoffs and requirements
State schemas do not automatically enforce authorization or prevent repeated side effects. Parallel node updates require deliberate merge behavior.
Unknown; inspect source requirements and supporting scripts.
Install from the source
Inspect the pinned source snapshot and its supporting files first. The command selects this skill through the open-source skills CLI. Node.js and agent-specific setup may be required. Installation can download code. Catalog ingestion never executes skill instructions or install scripts.
npx skills add https://github.com/langchain-ai/langchain-skills/tree/126c384d8552dcb476b226c244172186cc3f4328/config/skills/langgraph-fundamentals --skill langgraph-fundamentalsReview pinned skill folder ↗ · CLI documentation ↗
After source review, use npx skills check and npx skills update to inspect and apply upstream updates. Re-check changed instructions before running them.
Safety & review signals
Static review only. This is not a security audit or a guarantee of safety.
SKILL.md text only; scripts, dependencies and runtime behavior not audited.
No configured text patterns matched. Unmatched or concealed behavior can still exist.
Allowed tools declaration: Unknown. Runtime permissions and network behavior: Unknown.
AI Craft Pad Skill Score
86/100 · Metadata coverage 100% · Model 1.0
Scores summarize observable discovery signals. Popularity and repository activity apply to the whole repository. Unknown runtime safety earns no certification.
- Documentation
- 100/100
- Maintenance
- 100/100
- License Clarity
- 100/100
- Repository Health
- 100/100
- Compatibility Evidence
- 80/100
- Popularity
- 56/100
- Originality
- 80/100
- Static Safety
- 60/100
Suggested workflow
Define the state contract, implement small nodes and make routing and termination conditions explicit before adding concurrency.
How to judge the result
Test expected paths, invalid state and node failures, inspect streamed and final outputs and verify that loops and retries remain bounded.
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