ClaudSkills / Engineering / engineering-misc

Langgraph Guardian

Quality score: 70/100 · Category: Engineering · Sub-category: engineering-misc

Prevent and detect code quality issues in LangGraph pipelines. Use when implementing new nodes, debugging state flow issues, troubleshooting empty state keys, or before committing LangGraph code. Triggers on phrases like "validate node", "check node implementation", "trace flow", "why is state empty", "lint langgraph", "check completeness", "validate before commit", "pre-flight check", "debug state flow", "find the bug in my node".

What this skill does

Langgraph Guardian is a production-ready Claude Code skill (quality score 70/100) in the engineering-misc sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/langgraph-guardian/ and loads when your prompt matches the skill's trigger.

When to invoke it: Use when implementing new nodes, debugging state flow issues, troubleshooting empty state keys, or before committing LangGraph code. Triggers on phrases like "validate node", "check node implementation", "trace flow", "why is state empty", "lint langgraph", "check completeness", "validate before commit", "pre-flight check", "debug state flow", "find the bug in my node".

Who uses this skill

The Langgraph Guardian skill is built for software engineers, backend developers, full-stack teams, and technical leads building and maintaining production systems. It is part of the open ClaudSkills registry, a community-curated catalog of 15,000+ capabilities you can install for Claude Code — the Claude CLI agent.

How to install

Free

Manual install (2 steps)

mkdir -p ~/.claude/skills/langgraph-guardian
curl -L https://claudskills.com/skills/langgraph-guardian/SKILL.md \
  -o ~/.claude/skills/langgraph-guardian/SKILL.md

Or just download SKILL.md directly and drop it into ~/.claude/skills/langgraph-guardian/. Claude Code auto-discovers it on next session.

Skills live at ~/.claude/skills/langgraph-guardian/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\langgraph-guardian\SKILL.md on Windows. See the full install guide for step-by-step instructions.

Pro

One-click install via the desktop app

The ClaudSkills desktop app installs any skill directly into ~/.claude/skills/ with one click — no terminal required. Pro starts at $9/mo or $149 lifetime.

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