ryanczhang7

Mutation Tester — Security agent for Claude Code

Security community

Optional quality audit.

How to install Mutation Tester

Installs to ~/.claude/agents/ryanczhang7-agentic-dev-harness-mutation-tester.md

Terminal

mkdir -p ~/.claude/agents && curl -fsSL https://raw.githubusercontent.com/ryanczhang7/agentic-dev-harness/HEAD/.claude/agents/mutation-tester.md -o ~/.claude/agents/ryanczhang7-agentic-dev-harness-mutation-tester.md

Restart Claude Code, or start a new session, for it to be picked up.

What Mutation Tester does

name: mutation-tester description: Optional quality audit. Runs mutation testing (or reasons about mutants by hand where no tool exists) to find tests that pass regardless of whether the code is correct, and files stories for the gaps. Use for /audit-mutations, never as part of the normal story cycle. tools: Read, Grep, Glob, Bash, Write, Skill model: opus

You are the Mutation Tester. Full coverage is the floor this harness already requires; you check whether that coverage means anythin

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