Code Review & Quality Agent Plugins

Code Review & Quality is the 5th-largest category in agentpluginsdirectory.com's verified index: 36 of the 524 distinct Agent Plugins verified on 2026-08-09, or 7% of the directory. It covers plugins that read existing code and judge it: code review, refactoring guidance, linting and static analysis, debugging assistance, performance profiling, and codebase auditing. Of these 36, 32 ship at least one Agent Skill and 6 declare MCP servers.

Analysing or improving code that already exists. Writing new tests for it belongs to Testing; scanning it for vulnerabilities belongs to Security. Agent Plugins 1.0.0 defines no category field, so this grouping is editorial, not read from the manifest — the verification claim covers the plugin, not the category.

36 plugins · sorted by stars
  1. agentic-bundle-oss-maintainerPortable skills-only "OSS Maintainer" plugin from Agentic Awesome Skills.sickn33★ 44,677
  2. swift-concurrencyExpert guidance on Swift Concurrency best practices, patterns, and implementation. Covers async/await, actors, tasks, Sendable conformance, data race prevention, and Swift 6 migration strategies.AvdLee★ 1,611
  3. codebase-audit-suitelevnikolaevich★ 534
  4. optimization-suitelevnikolaevich★ 534
  5. review-suitelevnikolaevich★ 534
  6. squirrelscanWebsite QA tool built for coding agents (Claude Code, Cursor). 260+ rules across SEO, performance, security, accessibility & agent experience: audit from the CLI, fix findings in code, publish reports, and connect over MCP.squirrelscan★ 252
  7. php-modernizationPHP 8.x modernization patterns with type safety and PHPStannetresearch★ 37
  8. file-searchFast codebase search with ripgrep for text patterns, ast-grep for structural code search, plus fd, rga, tokei, and sccnetresearch★ 31
  9. unified-code-reviewRisk-first PR/branch review: blast radius, agent-authored checks, call-graph pincer, structure.dancingteeth★ 17
  10. go-developmentProduction-grade Go development patterns for resilient servicesnetresearch★ 9
  11. typo3-extension-upgradeSystematic TYPO3 extension upgrades with planning agents and commandsnetresearch★ 9
  12. gophersProduction-grade Go programming skills for AI coding agents.muratmirgun★ 8
  13. rootloomPortable Rootloom Agent Skills for inspectable code changes and evidence-backed review with bounded project guidance.qingye-lab★ 7
  14. typo3-conformanceEvaluate TYPO3 extensions for conformance to v12/v13/v14 standards (v14.3 LTS is the default/gold standard)netresearch★ 6
  15. git-slopAgent guidance for the deterministic git-slop repository token-defragmenter.coreycoto★ 5
  16. smrt-dev-mcpDevelopment MCP server and SMRT code-review skill.happyvertical★ 4
  17. loopsAutonomous loops that shepherd work to completion, such as driving a PR to a mergeable statestbenjam★ 2
  18. reviewsMulti-agent panel code review with specialist reviewers and runtime reproducersstbenjam★ 2
  19. constellationUpgrade your AI agent from text search to code understanding.ShiftinBits★ 1
  20. hengmuEvidence-bound architecture review and target design across compatible agent clients, with verification, decisions, remediation plans, and deterministic quality gates.qingye-lab★ 1
  21. swdSoftware development skills: deep planning, root-cause analysis, agent-oriented repo docs, spec-aware rebasing, and PR review.korya★ 1
  22. typo3-upgrade-effort-modelGeneric TYPO3 LTS upgrade effort model: per-version risk multipliers (v14: Fluid 5 strict VHs, HashService removal, TSFE removal, asset-pipeline removal), breaking-change baselines, version-compatibility matrix, Rector coverage adjustments, and a 7-phase assessment workflow. Calibration-free — pair with your own historical project data for tuned estimates.netresearch★ 1
  23. vtcode-pluginsGeneral-purpose Agent Skills extracted from VT Code: Rust coding rules, codemod migrations, code review, workspace analysis, and more.vinhnx★ 1
  24. zMake your coding agents automatically self-improve. Enforce your coding standards while your developers keep using whatever IDE, model, or agent they want.Zenable-io★ 1
  25. agent-code-navigatorRoute code discovery across exact search, semantic search, LSP navigation, and call-graph analysis.777genius
  26. anvilEvidence-first coding agent. Verifies before presenting. Attacks its own output with adversarial multi-model review, IDE diagnostics, and SQL-tracked verification to ensure code quality.RDCrystalLab
  27. ccdd-gateagent-tools-runtime plugin for ccdd-gate: a stdio MCP client wrapping the ccdd-complexity server (deterministic, AST-based Python code-quality/governance gates from the KDD/CCDD methodology).MauricioPerera
  28. chrome-devtoolsPortable Agent Plugins package for Chrome DevTools MCP. Inspect pages, automate flows, analyze performance, and debug browser state.777genius
  29. cleanupFindet toten/Legacy-Code und verwaiste Dateien, mit --skills stattdessen repo-lokale Skills. Standard nur analysieren; --fix beweist jede Löschung erst in einer Wegwerf-Kopie und führt sie dann aus.Xuoon
  30. debug-hypothesis假設驅動除錯法 — 強制 agent 走 Observe → Hypothesize → Experiment → Conclude 四階段科學方法迴圈,所有推理寫進 DEBUG.md,沒有證據前不准寫 fix。專治 AI 一路撞牆寫 150 行錯誤修復的 bulldozer 失敗模式。中文觸發詞:『這個 bug 怎麼修』、『一直修不好』、『科學方法除錯』、『debug 卡住了』。RDCrystalLab
  31. foundations.javascript-static-reviewFocused static review for JavaScript, TypeScript, React, Next.js, and browser extension changes.mylokaye
  32. foundations.javascript-static-reviewFocused static review for JavaScript, TypeScript, React, Next.js, and browser extension changes.mylokaye
  33. greptileCommunity package for the official Greptile MCP integration for repository search and code intelligence tooling.777genius
  34. house-rulesVersioned engineering playbook for AI coding agents: skills for code review, over-engineering audits, prose voice, planning, and TDD discipline.kevglynn
  35. patch-based-engineeringPatch-Based Engineering workflow — 將 patch / commit range 轉成可重建 spec,支援 spec-first reapply 與 clean-baseline validation。觸發詞:把這個 patch 變成 spec、重建這個客製化、從 commit range 抽出需求、驗證 patches.md 能不能獨立重做;extract patch intent, reapply from spec, validate patch spec.RDCrystalLab
  36. pinescript-pluginTradingView Pine Script v6 for coding agents, backed by a real validator rather than prose. A language skill plus an MCP server that validates Pine and returns real signatures from the official 457-function reference — including the overloads models routinely get wrong — and a hook that checks every .pine file the agent edits.jpantsjoha

Verified on 2026-08-09