code-review

code-review is a skill for Claude Code, Codex from lensapp/lens-sandbox. It costs 96 tokens per session (2,874 once invoked), scanned A, original, Apache-2.0.

A focused code-review method with separate modes for reviewing your branch or reviewing someone else's GitHub pull request. A pull request is a proposed set of code changes for others to inspect before merging.

In plain words
What is it for?
Use it to review the current branch before opening a pull request, or provide a GitHub pull-request URL or repository-and-number reference to review another change.
Why use it?
It aims to find real problems that need fixing without filling the review with style comments or praise. Branch review compares changes with the latest main branch, while pull-request review can post findings as a draft review.

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/lensapp/lens-sandbox/code-review
Any agent
npx skills add lensapp/lens-sandbox --skill code-review
Clone the repo
git clone --depth 1 https://github.com/lensapp/lens-sandbox

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for code-review

README.md
[![agentmods](https://agentmods.dev/badge/skills/lensapp/lens-sandbox/code-review.svg)](https://agentmods.dev/skills/lensapp/lens-sandbox/code-review)
Your own site
<a href="https://agentmods.dev/skills/lensapp/lens-sandbox/code-review"><img src="https://agentmods.dev/badge/skills/lensapp/lens-sandbox/code-review.svg" alt="Measured on agentmods" height="20"></a>
Per session 96 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,874 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.

ModelPer sessionOnce invoked
Fable 5 $0.00096 $0.02874
Opus 5 $0.00048 $0.01437
Sonnet 5 $0.00019 $0.00575
Haiku 4.5 $0.00010 $0.00287

Measured yesterday against content hash 0c18436e76ee, 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 yesterday.

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.

.claude/skills/code-review/SKILL.md · 359 lines

How it starts

The opening of the file, as written. The whole thing — 359 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Review

You are a senior engineer reviewing code. Your job is to protect the codebase — catch real problems, not accumulate style points. You have strong opinions but hold them loosely: if the approach is sound, say "Ship it." and get out of the way.

Your output is the list of things that need to change, or the words "Ship it." Style preferences and praise are not findings.

Mode selection

$ARGUMENTS determines the mode:

Arguments Mode
(empty or missing) Self-review — review the current branch against origin/main
GitHub PR URL or owner/repo#123 PR review — review a remote pull request

Self-review mode

Use this before creating a PR. Reviews your current branch's changes against a fresh origin/main.

Phase 1: Understand

1.1 Sync with origin

Fetch the latest state from origin so the diff is accurate:

git fetch origin main

Determine the current branch name:

git branch --show-current

If you're on main, stop — there's nothing to self-review.

1.2 Get the diff

git diff origin/main...HEAD

Also check for uncommitted changes:

git diff --stat
git diff --stat --cached

If there are uncommitted changes, warn the user that only committed changes will be reviewed — uncommitted work won't be in the diff.

1.3 Read every changed file

For each file in the diff, read the full file (not just the changed lines) to understand the context.

1.4 Read surrounding code

The diff alone is not enough. For each significantly changed file:

  • Read direct callers and importers if the change affects an interface
  • Read tests if they exist for the changed code
  • Grep for usages, read adjacent modules, follow the dependency chain

The goal is to understand the change the way the author understands it (or should).

1.5 Read product context

If the change touches product-facing behavior:

  • Read the Product Vision section of the repo-root CLAUDE.md
  • Read docs/README.md and whichever user guide covers the surface the change touches
  • For document-format or CLI-surface changes, read the deciding section of docs/sandbox-spec.md / docs/cli-spec.md and the Transitional-mode rules in CLAUDE.md

Read the full file on GitHub · 359 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. yesterday Changed 0c18436e76ee
  2. 5d ago First seen · 359 lines · 96 tokens per session scan A 566395e7447d

Subscribe to this mod's changes

code-review is a skill published in the GitHub repository lensapp/lens-sandbox (10 stars, last pushed today), licensed Apache-2.0. It adds 96 tokens to every session and 2,874 once invoked, about $0.0005 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 2026-08-31.

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