code-review

A code-review guide for checking pull requests, diffs, branches, and staged changes against the engineering standards of the guide repository.

In plain words
What is it for?
Use it to review proposed code changes and produce findings before merging or opening a pull request.
Why use it?
It helps reviewers find violations of project rules, including duplicate wiki page names, broken links, and problems in generated rule-file inputs.

Skill for Claude CodeCodex

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add skills/rios0rios0/guide/code-review
Any agent
npx skills add rios0rios0/guide --skill code-review
Clone the repo
git clone --depth 1 https://github.com/rios0rios0/guide

Made for: Claude Code, Codex.

Per session 71 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,906 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin 88% copy Near-identical to another mod in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00071 $0.02906
Opus 5 $0.00036 $0.01453
Sonnet 5 $0.00014 $0.00581
Haiku 4.5 $0.00007 $0.00291

Measured 2d ago against content hash bb3c8a3e3132, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

code-review scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

Origin

This is a copy

88% identical to code-review — 65 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

.github/skills/code-review/SKILL.md · 194 lines

How it starts

The opening of the file, as written. The whole thing — 194 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Code review — guide

guide is the canonical standards documentation: it publishes to the GitHub wiki and generates rule files for Claude Code, Cursor, Codex, and GitHub Copilot onto the generated branch. Everything every other repository is reviewed against starts here, so an ambiguous sentence propagates as a misapplied rule everywhere.

When to use this skill

Use it whenever you are asked to review a pull request, a diff, a branch, or staged changes in this repository — and before opening a pull request of your own, as a self-check. It is a review skill: it produces findings, not commits.

Source of truth

The canonical engineering standards live in the rios0rios0/guide wiki. This file is a repo-tailored index into that guide plus the rules that only apply here. Precedence, highest first:

  1. This repository's .github/copilot-instructions.md, CLAUDE.md, and CONTRIBUTING.md — they describe this codebase and its load-bearing invariants.
  2. The rios0rios0/guide wiki — the shared standard.
  3. General language idiom.

When the guide and a general convention disagree, the guide wins. When this file and the guide disagree, the guide wins and this file should be corrected in the same pull request.

Guide pages that apply here

Topic Page
YAML Conventions — .yaml, single quotes, unquoted scalars YAML
Git Flow — branches, commits, SemVer, breaking changes Git-Flow
Documentation & Change Control — changelog and docs discipline Documentation-&-Change-Control
CHANGELOG Formatting — capitalisation and backticks CHANGELOG-Formatting
Security — OWASP checklist, secret hygiene, SAST Security
CI & CD — pipeline stages and the local quality gates CI-&-CD
Code Style — baseline naming and the operations vocabulary Code-Style

Read the full file on GitHub · 194 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 2d ago First seen · 194 lines · 71 tokens per session scan A bb3c8a3e3132

Subscribe to this mod's changes

code-review is a skill published in the GitHub repository rios0rios0/guide (2 stars, last pushed 4d ago), licensed MIT. It adds 71 tokens to every session and 2,906 once invoked, about $0.0004 per session on Opus 5. A static security scan graded it A with 0 findings. It is 88% identical to code-review, differing in 65 lines, and is treated as a copy.

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