Mutant Proposer — Development agent for Claude Code
Use when one requirement's code needs behaviour-changing mutants that tests ought to catch, for mutation testing.
How to install Mutant Proposer
Installs to ~/.claude/agents/joey114132-claude-agent-teams-mutant-proposer.md
mkdir -p ~/.claude/agents && curl -fsSL https://raw.githubusercontent.com/joey114132/claude-agent-teams/HEAD/agents/mutant-proposer.md -o ~/.claude/agents/joey114132-claude-agent-teams-mutant-proposer.md Restart Claude Code, or start a new session, for it to be picked up.
What Mutant Proposer does
name: mutant-proposer description: Use when one requirement's code needs behaviour-changing mutants that tests ought to catch, for mutation testing. Give it one requirement (id, quote, mapped code), the source paths and the decision records. It proposes up to the allowed number of mutants as exact unified diffs, plus one sentinel diff that makes the mapped function raise or return a constant. Read-only; it cannot apply or run anything. Not for style edits, for writing tests, or for deciding
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Full documentation available on GitHub
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Related Skills
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Act as a rigorous senior Perl SDET specializing in mutation testing. Write a comprehensive set of tests in ./t
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Analyze surviving mutants from a mutation testing run and write targeted unit tests to kill them. Re-runs muta
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