claude

mutation-minded-testing

Mutation-minded, behavior-first test quality. 4 agents (architecture reviewer, senior tester judge, expressive verifier improver, branch coverage implementer) + 4 skills. Coverage is a floor; kill power is the signal.

6 on GitHubby ANcpLuav0.1.1MITupdated 9 days ago
/

Plugin mutation-minded-testing from marketplace ancplua-claude-plugins in ANcpLua/ancplua-claude-plugins. Commands read from the repo's manifest — 8 days ago.

What it installs

Skills (4)

  • improving-weak-tests

    Rewrite a weak unit spec into one that kills mutations. Use when you must fix a toBeTruthy/toBeDefined/toBeFalsy assertion, a bare mock-fired check, an array-length-only check, a shapeless snapshot, or a private-state peek. Triggers on "rewrite this spec", "stronger assertions", "catch mutations".

  • judging-test-quality

    Grade and review an existing spec suite for kill power before adding more. Use when you must find whether specs are real or cosmetic — each gets STRONG/ACCEPTABLE/WEAK/KILL plus one mutation it survives. Triggers on "audit these tests", "how strong is this", "mutation score", "green but buggy".

  • mutation-resistant-coverage

    Close branch gaps with high-signal specs, not cosmetics. Use when you run a file to 100% branches or kill survivors from Stryker/Infection/Pitest/Mutmut. Lists semantic branches and writes one real check per outcome. Triggers on "uncovered branches", "cover this file", "mutation run".

  • reviewing-testability

    Diagnose why a module is hard to verify and fix the narrowest seam. Use when specs need heavy mocking, break on refactor, or survive plausible mutations — find missing DI seams, hidden state, temporal coupling, raw clocks. Triggers on "tests are brittle", "mocks everywhere", "too coupled".

Slash commands (1)

  • /mutation-minded-testing:mmt

    Run the mutation-minded testing workflow — architecture review, test judgement, weak-test rewrite, mutation-resistant branch closure — on a file, directory, or diff.

Subagents (4)

  • architecture-reviewer

    Reviews architecture through the lens of testability. Finds structural smells that force weak tests — god objects, hidden state, temporal coupling, missing seams, implementation-coupled public APIs, static singletons. Output is a ranked list of structural changes that would unlock high-signal, mutat

  • branch-coverage-implementer

    Drives a file or module to 100% branch coverage without producing coverage cosmetics. Enumerates semantic branches (success/failure, empty/non-empty, auth/unauth, cached/uncached, valid/invalid, fallback/primary) and writes one high-signal test per semantically distinct outcome. Rejects tests whose

  • expressive-verifier-improver

    Rewrites weak tests into mutation-resistant tests using a concrete pattern catalogue. Takes tests graded WEAK or KILL by senior-tester-judge and transforms them — replacing toBeTruthy/toBeDefined with exact shape assertions, "mock was called" with state-transition checks, happy-path-only with happy

  • senior-tester-judge

    Senior test reviewer that grades existing tests on kill power, not line coverage. For each test, returns a verdict (STRONG / ACCEPTABLE / WEAK / KILL) and names at least one plausible mutation the test would survive. Rejects cosmetic assertions (toBeTruthy, toBeDefined, length checks without content

View source on GitHub

More from ANcpLua/ancplua-claude-plugins

All 23 plugins →

dotnet-dnceng

claude

Vendored (MIT) from dotnet/arcade-skills: .NET engineering-infrastructure CI/CD investigation. A ci-investigator orchestrator agent routes across 10 skills (Helix log analysis, Azure DevOps pipeline triage, binlog/crash-dump inspection, codeflow + dependency tracing, Maestro, known-issue history) and 4 MCP servers. Forked only to fix the manifest agents path for Claude Code's ./-prefixed component-path schema; upstream is unchanged otherwise.

10 skills · 1 agent · 4 MCP servers

6

nihil

claude

Evidence-gated maintainability discipline in two layers. (1) A native plugin: four modes — /nihil:raze (root-authority, write-capable transformation of a repo you own; only secret-leak and catastrophic, unrecoverable commands are blocked) plus /nihil:review, /nihil:implement, /nihil:release with confidence scoring, scope control, and release gating — backed by five read-only review agents and PreToolUse/Stop hooks (a discipline aid, not a security boundary: heuristic command matching, fail-open; a secret / API-key brake is active in every mode). (2) A summonable pantheon of five first-principles dynamic workflows (/nihil orchestrator + /nihil-maat review, /nihil-odin research, /nihil-shiva deletion, /nihil-athena restructure), installed into .claude/workflows/ via /nihil:summon.

6 skills · 1 command · 5 agents · hooks

6

elegance-pipeline

claude

Code-elegance pipeline: 4 scouts, 2 judges, planner, verifier, and a gated implementer, plus a standalone code-simplifier for single-pass diff cleanups. Persistent state with stage gates.

1 skill · 3 commands · 6 agents

6

exodia

claude

Multi-agent workflow orchestration (7 commands + 2 skills: eight-gates, hades): fix, tournament, mega-swarm, deep-think, batch-implement, red-blue-review, baryon-mode. Hades, eight-gates, and red-blue-review use Teams API for reactive collaboration.

2 skills · 7 commands · hooks

6

metacognitive-guard

claude

Cognitive amplification stack: epistemic hooks, competitive review, commit integrity checks, and deep-thinking agents.

5 commands · 3 agents · hooks

6

derot

claude

Dependency lifecycle: /derot audits comment/doc/CI/version/dependency rot and proposes fixes; /depmigrate migrates packages to their new APIs from upstream releases/tags — refutation-gated.

1 skill · 2 commands · 3 agents

6

Similar plugins

example-skills

claude

Collection of example skills demonstrating various capabilities including skill creation, MCP building, visual design, algorithmic art, internal communications, web testing, artifact building, Slack GIFs, and theme styling

19 skills

anthropics/skills 193,780

pr-review-toolkit

claude

Comprehensive PR review agents specializing in comments, tests, error handling, type design, code quality, and code simplification

1 command · 6 agents

anthropics/claude-code 155,476

storybook

claudecodex

Build, preview, and test UI components with Storybook.

7 skills

storybookjs/storybook 91,552

agentic-qe-fleet

claude

Agentic QE (external: maintained in proffesor-for-testing/agentic-qe, pinned to v3.15.17): a quality-engineering fleet with 11 QE agents, 9 skills, 9 commands, the agentic-qe MCP server pinned to the plugin version, and the aqe-mod guard that refuses destructive operations on AQE learning data

9 skills · 9 commands · 11 agents · 1 MCP server

ruvnet/ruflo 81,589

agent-browser

claude

Automates browser interactions for web testing, form filling, screenshots, and data extraction

12 skills

vercel-labs/agent-browser 50,373

Maintain mutation-minded-testing?

This page updates itself from your repo. Add the badge to your README, or get it Featured to pin it above the organic results with a followed link to your site.

claude & codex plugins23 plugins