About
Spec Guardian validates implementation against API docs, database schemas, and acceptance criteria to ensure features match specifications. Use it before starting development, during code review, or when verifying feature completeness to prevent scope creep and enforce standards. It checks endpoint contracts and architectural compliance.
Quick Install
Claude Code
Recommendednpx skills add mattnigh/skills_collection -a claude-code/plugin add https://github.com/mattnigh/skills_collectiongit clone https://github.com/mattnigh/skills_collection.git ~/.claude/skills/spec-guardianCopy and paste this command in Claude Code to install this skill
GitHub Repository
Frequently asked questions
What is the spec-guardian skill?
spec-guardian is a Claude Skill by mattnigh. Skills package instructions and resources that Claude loads on demand, so Claude can perform spec-guardian-related tasks without extra prompting.
How do I install spec-guardian?
Use the install commands on this page: add spec-guardian to Claude Code as a plugin, or clone its repository into your skills directory, then restart Claude so it picks up the skill.
What category does spec-guardian belong to?
spec-guardian is in the Design category, tagged ai, api and data.
Is spec-guardian free to use?
Yes. spec-guardian is listed on AIMCP and free to install. It runs inside Claude, so no separate service account is required to use the skill itself.
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