code-review-web

code-review-web is a skill for Claude Code, Codex from rampstackco/claude-skills. It costs 121 tokens per session (2,322 once invoked), scanned A, original, MIT.

A guide for reviewing and debugging web application code for bugs, security risks, performance problems, and framework-specific mistakes.

In plain words
What is it for?
Use it to review pull requests, investigate errors and logs, audit existing code, or check configuration and environment-variable problems.
Why use it?
It helps find the likely causes of broken sites, failed builds, production issues, and risky code before they cause more trouble.

Skill for Claude CodeCodex

Part of the rampstack-skills plugin — 103 skills shipped together

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/rampstackco/claude-skills/code-review-web
Any agent
npx skills add rampstackco/claude-skills --skill code-review-web
Clone the repo
git clone --depth 1 https://github.com/rampstackco/claude-skills

Made for: Claude Code, Codex.

Or install rampstack-skills, the plugin that ships this one along with the rest of its 103 skills.

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-web

README.md
[![agentmods](https://agentmods.dev/badge/skills/rampstackco/claude-skills/code-review-web.svg)](https://agentmods.dev/skills/rampstackco/claude-skills/code-review-web)
Your own site
<a href="https://agentmods.dev/skills/rampstackco/claude-skills/code-review-web"><img src="https://agentmods.dev/badge/skills/rampstackco/claude-skills/code-review-web.svg" alt="Measured on agentmods" height="20"></a>
Per session 121 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,322 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 $0.00121 $0.02322
Opus 5 $0.00060 $0.01161
Sonnet 5 $0.00024 $0.00464
Haiku 4.5 $0.00012 $0.00232

Measured 4d ago against content hash 1833c32ede91, 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-web 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 4d 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

Copies of this mod

1 near-identical copy found in the catalogue:

skills/code-review-web/SKILL.md · 214 lines

How it starts

The opening of the file, as written. The whole thing — 214 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Code Review for Web

Review and debug web application code with a focus on the patterns that actually break production. Stack-agnostic principles in SKILL.md. Stack-specific patterns in references.


When to use

  • Reviewing a pull request before merging
  • Debugging a production issue
  • Investigating a build failure
  • Auditing security or performance of existing code
  • Investigating environment variable or configuration issues
  • Triaging a "the site is broken" report

When NOT to use

  • Writing a new feature spec (use pm-spec-writing)
  • Pre-launch QA against the running site (use qa-testing)
  • Performance deep-dive on Core Web Vitals (use performance-optimization)
  • Deep accessibility compliance review (use accessibility-audit)

Required inputs

  • The code, PR, error message, or symptom under review
  • Access to logs (build logs, function logs, server logs) if debugging
  • The stack (framework, hosting, database) - even at high level

If just a symptom is provided ("the site is broken"), the workflow's first step is gathering enough context to investigate.


The framework: 5 review dimensions

Every code review covers five dimensions. Pick the depth based on the situation.

1. Correctness

Does the code do what it claims to do?

  • Logic matches the intent stated in the spec or PR description
  • Edge cases handled (empty states, error states, network failures)
  • Off-by-one errors, null/undefined handling, async race conditions
  • Tests exist for the change, or there's a reason they don't
  • The change does not break existing functionality (regression risk)

2. Security

Does the code expose anything sensitive or open an attack surface?

  • Secrets handling. No secrets, API keys, or service-role credentials in client-side code or version control
  • Auth checks. Every mutation endpoint validates the caller before acting
  • Input validation. User input sanitized before use in queries, file paths, or HTML
  • External requests. Outbound URLs validated; no SSRF on user-controlled inputs
  • CSRF protection. State-changing requests require a token or same-origin policy
  • Rate limiting. Public-facing mutation endpoints have rate limits
  • HTTPS-only. No HTTP in production code paths
  • Cookies. Session cookies have Secure, HttpOnly, SameSite attributes set
  • Environment variables. Server-only secrets are not prefixed with anything that exposes them to the client bundle

Read the full file on GitHub · 214 lines

Files

What ships with it

3 files 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.

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. 4d ago First seen · 214 lines · 121 tokens per session scan A 1833c32ede91

Subscribe to this mod's changes

code-review-web is a skill published in the GitHub repository rampstackco/claude-skills (814 stars, last pushed 6d ago), licensed MIT. It adds 121 tokens to every session and 2,322 once invoked, about $0.0006 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.