Cha Mutant Smith — Testing & QA agent for Claude Code
Writes mutants that break one meaning-carrying line each, with anchors lifted verbatim and a real test path.
How to install Cha Mutant Smith
Installs to ~/.claude/agents/jysvai-cha-cha-mutant-smith.md
mkdir -p ~/.claude/agents && curl -fsSL https://raw.githubusercontent.com/jysvai/CHA/HEAD/agents/cha-mutant-smith.md -o ~/.claude/agents/jysvai-cha-cha-mutant-smith.md Restart Claude Code, or start a new session, for it to be picked up.
What Cha Mutant Smith does
Writes mutants that break one meaning-carrying line each, with anchors lifted verbatim and a real test path.
Alternatives in Testing & QA
- Omd Final QA — Read-only final-gate critic 465 ★
- Playwright Test Generator — Use this agent when you need to create automated browser tests using Playwright Examples: Context: User wants 246 ★
- Resource Manager — Use BEFORE dispatching any TEST-RUNNING subagent (a builder, a fix-subagent, qa-engineer) to get a GO/HOLD ver 71 ★
Full documentation available on GitHub
View Source RepositoryRelated Agents
Equivalent Mutant Judge
Use when mutants survived a test suite and each one must be classified as EQUIVALENT (no input can observe the
Mutant Triager
Runs Stryker on specific files of a Node/TypeScript service and returns only the real test gaps, with discarde
Forge Speccer Validator
Pre-planning path-validation gate. Scans a spec file for path tokens inside code fences or backticks, checks e
Slide Critic
Design-quality grading of a slide that already passed defect QA (genslides optional polish pass, NOT a gate).
Post Researcher
Gathers the evidence a genuinely educational blog post needs from a source repo — real commands, file:line cit
Research Plugin Spec
Researches Claude Code plugin, skill, and sub-agent authoring from official Anthropic documentation. Shared by
Related Skills
Mutant Killers
Act as a rigorous senior Perl SDET specializing in mutation testing. Write a comprehensive set of tests in ./t
Cha Init
Scaffold CHA in this repository — .cha/ config, cumulative record, mutant list — and detect the gate commands.
Round
Run one design round through the design chain: vision, owners, brief with verbatim anchors, three directions,
