Library Spec Guardian — Testing & QA agent for Claude Code
Independent quality and non-negotiable watchdog for the library-spec-negotiation skill.
How to install Library Spec Guardian
Installs to ~/.claude/agents/941design-claude-plugins-library-spec-guardian.md
mkdir -p ~/.claude/agents && curl -fsSL https://raw.githubusercontent.com/941design/claude-plugins/HEAD/.claude/agents/library-spec-guardian.md -o ~/.claude/agents/941design-claude-plugins-library-spec-guardian.md Restart Claude Code, or start a new session, for it to be picked up.
What Library Spec Guardian does
name: library-spec-guardian description: Independent quality and non-negotiable watchdog for the library-spec-negotiation skill. Reviews each topic resolution and the final spec against the user-level and project-level non-negotiables in `inputs.json` and `reps.json`, plus a quality bar (clarity, completeness, consistency, testability, scope discipline). Read-only on project files; writes only to `negotiation/guardian-findings.json`. Returns one of `accept`, `nit`, or `block`. Replies only t
Alternatives in Testing & QA
- Helper Author — Owns the shared Cypress helper library for component automation 41k ★
- Pencil UI Designer — Use this agent when you need Pencil-based design workflows: atomic designer actions, MCP tools, and spec-drive 635 ★
- Review Code Quality — Reviews code changes for code quality, conventions, readability, DRY violations, error handling, test coverage 432 ★
Full documentation available on GitHub
View Source RepositoryRelated Agents
Skill Creator
Generate spec-compliant skills for the cc-polymath library. Takes a topic/domain and produces a well-structure
Qc Lead
Use this agent when the qc-engineer has finished a test pass and produced an evidence set, when a run needs it
Architecture Watchdog
High-Level-Architektur-Review für xbuddy. Prüft Spec-Drift, Skalierbarkeit (Familie-3-Probe), Sackgassen, Komp
Vp Quality
VP of Quality - oversees quality gates, test strategy, review coordination, and final approval before task com
Video Film Verifier
Independent PASS/FAIL verification of a finished video against its spec's acceptance criteria - format, claims
Eng Testes
Test quality guardian. Invoke when a Dev finishes implementation and the Manager needs to validate TDD was res
Related Skills
Vibe Safe
Active session guardian for non-technical contributors shipping AI-assisted code in shared codebases
PR Shepherd
Monitor a PR through to merge - handles CI failures, reviews, and thread resolution
Canary PR Guardian
Run the canary PR test-guardian — Tier-0 diff-coverage, Tier-1 quality audit,