Validate test strength with mutation testing and harden weak assertions.
From tdd-guardiannpx claudepluginhub xiaolai/claude-plugin-marketplace --plugin tdd-guardianThis skill uses the workspace's default tool permissions.
Searches, retrieves, and installs Agent Skills from prompts.chat registry using MCP tools like search_skills and get_skill. Activates for finding skills, browsing catalogs, or extending Claude.
Searches prompts.chat for AI prompt templates by keyword or category, retrieves by ID with variable handling, and improves prompts via AI. Use for discovering or enhancing prompts.
Compares coding agents like Claude Code and Aider on custom YAML-defined codebase tasks using git worktrees, measuring pass rate, cost, time, and consistency.
requireMutation=true.The mutation command's exit code determines pass/fail. A zero exit code means the mutation score meets the tool's configured threshold; non-zero means it does not.