claude

mutation-testing

Measures whether a test suite detects faults, not merely runs code. /mutation-testing:principles answers operator, mutant-state, and metric questions from the literature. /mutation-testing:setup verifies the mutation tool and writes tracked config. /mutation-testing:audit runs mutation analysis on the diff (or, with --exercised, on code the changed tests call), reports surviving mutants and why each lived, verifies source was restored, and can save survivors as findings.

30 on GitHubby Melodic Softwarev0.16.9MITupdated todaytesting
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Plugin mutation-testing from marketplace melodic-software in melodic-software/claude-code-plugins. Commands read from the repo's manifest — today.

What it installs

Skills (3)

  • audit

    Mutation analysis that reports surviving mutants, on the diff or, with `--exercised`, on the production code the changed tests call. Use when: the user asks to run mutation testing or for a mutation score on a change ('run mutation testing'), doubts a suite whose coverage looks healthy ('my coverage

  • principles

    Mutation-testing theory from the primary literature: what a surviving mutant means and why. Use when: the user asks what mutation testing is or whether it is worth doing, how the score relates to coverage ('mutation score vs coverage', 'what is test strength'), what a mutant's state or disposition m

  • setup

    Verify and configure the mutation-testing plugin for this repository. check inspects the ecosystem's mutation tool (installed, runnable, supported test runner), the baseline suite's health, and the tracked docs/conventions/mutation-testing.yaml config across its merge layers, read-only; apply detect

View source on GitHub

More from melodic-software/claude-code-plugins

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Claude Code operations: audit-skill-visibility (skills the listing budget hides), inventory (every invocable surface), audit-install-state, audit-performance (slowness), audit-mod-posture (mods and the guard), audit-native-overlap (skills duplicating built-ins), observability (telemetry), known-issues, changelog, behavior-probes, prerequisites, check, machine-profile, plugins (update the fleet), lanes (background loop sessions), setup. Plus opt-in hook event logs.

18 skills · hooks

30

Session lifecycle: workflow (next stage), handoff (save-point, resume prompt), continue-in-background, keep-going (resume after interruption or stall), find-handoff (recover a lost handoff), clean-stop (durable stopping point), retro and running-retro (retrospectives), audit-sessions, audit-friction, orient (where the session stands), orchestrate (delegation imperatives), reanchor (verify assumptions), reconcile (retire finished work), recommend-skills, tidy-work (.work tiers), check, setup.

18 skills · hooks

30

review

claude

Code-review toolkit: nine agents, read-only over the reviewed code, plus orchestration skills for the quality gate and fan-out, a pull-request change digest with an interactive view (/review:explain-change), a merge-risk rating with a demote-only flag (/review:merge-risk), a fan-out sweep workflow (/review:fanout-sweep), and CI lane commands (/review:code-review, /review:security-review) for org reusable workflows.

8 skills · 9 agents · hooks

30

Correctors that re-anchor a rule, audit work in flight, and fix drift: do-your-research, follow-our-standards, point-dont-copy, reason-dont-recite, tighten-your-output, recheck-against-upstream, pick-for-the-problem, mind-your-maxims, script-the-deterministic-work, use-your-skills, reuse-or-replace, scrutinize-dont-coast. sweep-all runs them as one batch. wait-what re-pitches a message that did not land. hold-my-hand shows work one phase at a time. be-ambitious raises one request's ambition.

17 skills

30

discovery

claude

Discovery before changes: explore the local codebase, run multi-source external research, and reconstruct why a past decision was made from evidence outside the code. Each dispatches a subagent by default so the reading stays out of the main thread, with source tiers, falsification, recency gates and a coverage ledger, and persists EXPLORE.md / RESEARCH.md / INTENT.md handoff artifacts. A research sweep workflow (/discovery:research-sweep) backs deep research with adversarial claim verification.

7 skills · 6 agents · hooks

30

testing

claude

Test-stage discipline: /testing:plan (coverage gaps, test plans), /testing:write (TDD authoring), /testing:run-e2e (live E2E and smoke checks), /testing:diagnose (failing-test root cause, with a fix-until-green workflow across files), /testing:audit (can't-fail test audit with a fail-closed gate), /testing:cleanup (rewrite, quarantine, or delete low-value tests behind a mutation gate), /testing:setup, and an opt-in hook that flags edits that weaken tests.

9 skills · 4 agents · hooks

30

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