Review changed code for reuse, quality, and efficiency, then fix any issues found.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Simplify: Code Review and Cleanup
Review all changed files for reuse, quality, and efficiency. Fix any issues found.
## Phase 1: Identify Changes
Run `git diff` (or `git diff HEAD` if there are staged changes) to see what changed. If there are no git changes, review the most recently modified files that the user mentioned or that you edited earlier in this conversation.
## Phase 2: Launch Three Review Agents in Parallel
Use the delegate tool to launch all three agents concurrently in a single message. Pass each agent the full diff so it has the complete context.
### Agent 1: Code Reuse Review
For each change:
1. **Search for existing utilities and helpers** that could replace newly written code. Look for similar patterns elsewhere in the codebase — common locations are utility directories, shared modules, and files adjacent to the changed ones.
2. **Flag any new function that duplicates existing functionality.** Suggest the existing function to use instead.
3. **Flag any inline logic that could use an existing utility** — hand-rolled string manipulation, manual path handling, custom environment checks, ad-hoc type guards, and similar patterns are common candidates.
…
The line at the top of this page pins the label git:20260321.8a40297, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
GET https://markdownregistry.com/api/v1/artifacts/art_srfuwi6qnpv3tkcv
GET https://markdownregistry.com/api/v1/resolve?ref=microsoft/amplifier-bundle-skills/code-review
GET https://markdownregistry.com/api/v1/blob/a76646dc9f493b3fd3e4190097acf75b9d4892d22fb264cda09379975e56062e
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
microsoft/amplifier-bundle-skills · modules/tool-skills/tests/fixtures/skills/module-development/SKILL.md · Guide for creating new Amplifier modules including protocol implementation, entry points, mount functions, and testing…
microsoft/amplifier-bundle-skills · modules/tool-skills/tests/fixtures/skills/python-standards/SKILL.md · Python coding standards for Amplifier including type hints, async patterns, error handling, and formatting. Use when…
microsoft/amplifier-bundle-skills · skills/adapt-skill/SKILL.md · Adapt a skill written for another AI assistant (OpenAI Codex, ChatGPT, Claude Code, Cursor) into a proper Amplifier…
microsoft/amplifier-bundle-skills · skills/bet-sizer/SKILL.md · Delivery-risk reviewer that sizes a plan's investment against the team's real confidence it will land. Voice of a…
microsoft/amplifier-bundle-skills · skills/bug-report/SKILL.md · Investigate a defect and write an evidence-backed maintainer report. USE WHEN asked to file a bug, report an issue…
microsoft/amplifier-bundle-skills · skills/council-here/SKILL.md · Convene the persona panel on the CURRENT conversation — the plan, design, or decision built in this session. The INLINE…
microsoft/amplifier-bundle-skills · skills/council/SKILL.md · Convene the persona panel — six orthogonal review lenses — on a target. Cold independent fan-out, debate-to-consensus…
microsoft/amplifier-bundle-skills · skills/councilify/SKILL.md · Build a NEW complete "council" for a domain — a panel of orthogonal review lenses that fan out cold, debate to…
microsoft/amplifier-bundle-skills · skills/cranky-old-sam/SKILL.md · Simplicity-obsessed reviewer that interrogates complexity and insists on the minimal viable design. Voice of a senior…
microsoft/amplifier-bundle-skills · skills/create-demo-video/SKILL.md · Produce a narrated demo video that shows something the user made or built, cut from recordings they supply or…
agno-agi/agno · cookbook/02_agents/16_skills/sample_skills/code-review/SKILL.md · Code review assistance with linting, style checking, and best practices
kyegomez/swarms · examples/single_agent/capabilities/skills/multiple_skill_dirs/team_skills/code-review/SKILL.md · Review Python code for bugs, missing tests and security issues using the team's shared standards
basicmachines-co/basic-memory · .agents/skills/code-review/SKILL.md · Use when reviewing Basic Machines code for house style, architecture risk, pre-merge hardening, or whether a change…
nteract/semiotic · .github/skills/code-review/SKILL.md · Review Semiotic pull requests for behavioral bugs, regressions, contract drift, and missing evidence. Use for GitHub…
