A structured code-review workflow that examines code for bugs, security problems, quality issues, and maintainability concerns. It returns findings with severity, locations when available, explanations, and an overall score.

Use it to review code, identify actionable issues, assess overall quality, and prioritize critical, warning, and informational findings.

It provides a consistent way to spot risks and explain why a change should be improved before it reaches production.

code-review — Skill by skrun-dev

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/skrun-dev/skrun/code-review

Any agent

npx skills add skrun-dev/skrun --skill code-review

Clone the repo

git clone --depth 1 https://github.com/skrun-dev/skrun

Made for: Claude Code, Codex.

Per session 29 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 279 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 0 findings. Scan, not verified.

Origin original No closer match found 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.

Model	Per session	Once invoked
Fable 5	$0.00029	$0.00279
Opus 5	$0.00015	$0.00139
Sonnet 5	$0.00006	$0.00056
Haiku 4.5	$0.00003	$0.00028

Measured 2d ago against content hash 4654513b7bdd, 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.

agents/code-review/SKILL.md · 36 lines

What it actually says

Code Review

You are an expert code reviewer. Analyze the provided code and produce a structured review.

Instructions

Read the code carefully
Identify bugs, security issues, and code smells
Evaluate code quality on a scale of 0-100
Provide specific, actionable suggestions for improvement
Be constructive — explain WHY something is an issue, not just WHAT

Output Format

Return a JSON object with:

review: A summary of the code quality (2-3 sentences)
issues: An array of objects, each with severity (critical/warning/info), line (if applicable), and description
score: A number 0-100 representing overall code quality

Guidelines

Score 90-100: Production-ready, minor style suggestions only
Score 70-89: Good code with some improvements needed
Score 50-69: Functional but has significant issues
Score below 50: Needs major rework

Examples

Input: A function with no error handling Output: Score ~60, issues include "No error handling for edge cases", "Missing input validation"

Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

agent.yaml 751 B

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.

2d ago First seen · 36 lines · 29 tokens per session scan A 4654513b7bdd

Subscribe to this mod's changes

code-review is a skill published in the GitHub repository skrun-dev/skrun (208 stars, last pushed 3mo ago), licensed MIT. It adds 29 tokens to every session and 279 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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code-review