Agent skill

Review

by poteto in poteto/brainmaxxing

Principle-grounded review of code changes, PRs, or plans. An agent skill from poteto/brainmaxxing.

MITAuto-check passedDevelopment

Install Review

skills CLI
$ npx skills add poteto/brainmaxxing --skill review -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install poteto/brainmaxxing review --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/poteto/brainmaxxing.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.agents/skills/review .claude/skills/review && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
review
GitHub stars
321
Token cost
~1.3k tokens
SKILL.md length
699 words
Files
1
Skills in repo
5
Repo updated
First seen
Licence
MIT

At a glance

Principle-grounded review of code changes, PRs, or plans. An agent skill from poteto/brainmaxxing.

  • Works in 7 steps: Load Principles → Determine Scope → Gather Context → …
  • Asked to review
  • SKILL.md covers Step 1 — Load Principles, Step 2 — Determine Scope, Step 3 — Gather Context and Step 4 — Gather Domain Skills, plus 4 more sections
  • Calls git

What it does

Review is an agent skill from poteto/brainmaxxing. Principle-grounded review of code changes, PRs, or plans. Use when asked to review, critique, or assess quality of work — "review", "review this", "code review", "check this".

Its SKILL.md is about 1.3k tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in Development. The repository describes itself as: stupid simple persistent memory and skill improvement. The licence is MIT.

When your agent uses it

  • Asked to review
  • Assess quality of work — review

Example prompts

  • “review”
  • “review this”
  • “code review”
  • “/review”

Workflow steps

7 steps, taken from the step headings in SKILL.md.

  1. Load Principles
  2. Determine Scope
  3. Gather Context
  4. Gather Domain Skills
  5. Assessment Pipeline
  6. Issue Format
  7. Verdict

What it can do on your machine

Read from SKILL.md and the folder at commit ec4d8e4. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    Shell commands in SKILL.md call:

    • git

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md. Its commands use git, which can reach the network depending on how they are called.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Review loads about 1.3k tokens when it runs. Until then it costs about 46 tokens; SKILL.md has 699 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~46
When it runs · the whole SKILL.md, loaded when a task matches
~1.3k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from poteto/brainmaxxing at commit ec4d8e4, republished under its MIT licence (© poteto). 699 words, ~1,342 tokens.

Download SKILL.mdSave it as .claude/skills/review/SKILL.md (or your agent's skills folder).
name
review
description
Principle-grounded review of code changes, PRs, or plans. Use when asked to review, critique, or assess quality of work — "review", "review this", "code review", "check this".

Review

Thorough review grounded in project principles. Do NOT make changes — the review is the deliverable.

Use Tasks to track progress. Create a task for each step below (TaskCreate), mark each in_progress when starting and completed when done (TaskUpdate). Check TaskList after each step.

Step 1 — Load Principles

Read brain/principles.md. Follow every [[wikilink]] and read each linked principle file. These principles govern review judgments — refer back to them when evaluating issues.

Do NOT skip this. Do NOT use memorized principle content — always read fresh.

Step 2 — Determine Scope

Infer what to review from context — the user's message, recent diffs, or referenced plans/PRs. If genuinely ambiguous (nothing to infer), ask.

Auto-detect review mode from change size:

  • BIG CHANGE (50+ lines changed, 3+ files, or new architecture) — all sections, at most 4 top issues per section
  • SMALL CHANGE (under those thresholds) — one issue per section

Step 3 — Gather Context

For SMALL CHANGE reviews, read files directly in the main context — delegation overhead exceeds the cost of reading a few files.

For BIG CHANGE reviews, delegate exploration to subagents via the Task tool.

Spawn exploration agents (subagent_type: Explore) to:

  • Read the code or plan under review
  • Identify dependencies, callers, and downstream effects
  • Map relevant types, tests, and infrastructure

Run multiple agents in parallel when investigating independent areas.

Step 4 — Gather Domain Skills

Check installed skills (.agents/skills/, .claude/skills/) for any that match the review's domain.

Invoke matched skills now — read their output and use domain guidance to inform your review.

For domains not covered by installed skills, use find-skills to search for a relevant skill.

Step 5 — Assessment Pipeline

Work through all sections in order. For each section, check against loaded principles.

1. Scope Check

If the review targets work against a plan phase:

  • Read the plan phase that was assigned.
  • Run git diff --stat and git log --oneline for the relevant commits.
  • Flag files changed outside the plan phase's stated scope as scope violations.

If no plan phase applies, skip this subsection.

2. Architecture
  • System design and component boundaries
  • Dependency graph and coupling
  • Data flow patterns and bottlenecks
  • Security architecture (auth, data access, API boundaries)
3. Code Quality
  • Code organization and module structure
  • DRY violations — be aggressive
  • Error handling patterns and missing edge cases (call out explicitly)
  • Over-engineering or under-engineering relative to principles; consider redesign-from-first-principles
  • Technical debt hotspots
4. Tests
  • Coverage gaps (unit, integration, e2e)
  • Test quality and assertion strength
  • Missing edge case coverage — be thorough
  • Untested failure modes and error paths
  • New behavior must have new tests. Tests must assert outcomes, not implementation details.
Show full SKILL.md (277 more words)Show less
5. Performance
  • N+1 queries and database access patterns
  • Memory-usage concerns
  • Caching opportunities
  • Slow or high-complexity code paths
Principle Compliance

For each changed file, check against loaded principles. Common violations:

  • Bolted-on changes instead of redesign (redesign-from-first-principles)
  • Missing verification (prove-it-works)
  • Unnecessarily added complexity (subtract-before-you-add)

Step 6 — Issue Format

NUMBER each issue (1, 2, 3...). For every issue:

  • Describe the problem concretely with file and line references
  • Assign severity: high (blocks acceptance), medium (worth fixing, multiple may block), low (style/minor)
  • Present 2–3 options with LETTERS (A, B, C), including "do nothing" where reasonable
  • For each option: implementation effort, risk, impact on other code, maintenance burden
  • Give a recommended option and why, mapped to principles
  • Ask whether the user agrees or wants a different direction
Severity Guide
  • high: Incorrect behavior, missing tests for new behavior, scope violation on core files, principle violation that changes architecture.
  • medium: Worth fixing but not blocking on its own. Multiple mediums may trigger rejection.
  • low: Style, documentation, minor improvements. Note but don't block on these.

When using AskUserQuestion, label each option with issue NUMBER and option LETTER. Recommended option is always first.

Step 7 — Verdict

After presenting all issues, give an overall verdict:

  • Accept: All checks pass, scope clean, tests present and passing.
  • Accept with notes: Low-severity issues only. List them for optional follow-up.
  • Revise: High-severity issues found. Include specific actionable feedback — reference the exact file, line context, and principle violated.

Interaction Rules

  • Do not assume priorities on timeline or scale
  • Do not make changes — present findings and wait for direction
  • Present all sections together, then ask for feedback once at the end
  • Per prove-it-works: if something can be tested, note how in the issue description

© poteto, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

Just SKILL.md in .agents/skills/review of poteto/brainmaxxing.

Open the folder on GitHubat commit ec4d8e4

Compare with similar skills

Review next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Review compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Review this skillpoteto/brainmaxxing321—~1.3kAutomated safety check: PassMIT
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Finishing a Development Branchobra/superpowers297k5 repos~1.9kAutomated safety check: PassMIT
Typescript Advanced Typesrolling-scopes/rsschool-app10k25 repos~4.2kAutomated safety check: PassMPL-2.0
PR Babysitteropeninterpreter/openinterpreter69k3 repos~4.2kAutomated safety check: PassApache-2.0
Code Review ChecklistshareAI-lab/learn-claude-code78k5 repos~1.1kAutomated safety check: PassMIT

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Categories

Questions about Review

What does Review do?

Principle-grounded review of code changes, PRs, or plans. An agent skill from poteto/brainmaxxing. Review is an agent skill from poteto/brainmaxxing. Principle-grounded review of code changes, PRs, or plans.

When should I use Review?

Review fits situations like: asked to review; assess quality of work — review.

How do I install Review in Claude Code?

Run `npx skills add poteto/brainmaxxing --skill review -a claude-code`. Or copy the skill folder (.agents/skills/review in poteto/brainmaxxing) into .claude/skills/review in your project. Claude Code loads it when a task matches its description.

How do I install Review in Codex?

Run `npx skills add poteto/brainmaxxing --skill review -a codex`. Or copy the skill folder (.agents/skills/review in poteto/brainmaxxing) into .agents/skills/review in your project. Codex loads it when a task matches its description.

Can I use Review in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add poteto/brainmaxxing --skill review -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/review, .gemini/skills/review, .github/skills/review and .opencode/skills/review in your project.

What does Review need to run?

Going by SKILL.md and its folder, Review needs the command-line tools its instructions call (git).

Does Review access the network?

SKILL.md contains no URLs. Its commands use git, which can reach the network depending on how they are called. This is read from the text; nothing was executed.

Is Review safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Review use?

Review is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Review use?

About 1.3k tokens (SKILL.md is roughly 5.4k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Review?

Skills that share tags, products or a category with Review: Vercel Composition Patterns (supabase/supabase, 111k stars), Finishing a Development Branch (obra/superpowers, 297k stars), Typescript Advanced Types (rolling-scopes/rsschool-app, 10k stars) and PR Babysitter (openinterpreter/openinterpreter, 69k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Review?

poteto (a GitHub user) maintains it in poteto/brainmaxxing, which has 321 GitHub stars. The repository holds 5 skills in this directory. The repository was last updated on February 27, 2026.

Source: poteto/brainmaxxing on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.