oz-for-oss: Skill for Claude Code

.agents/skills/security-review-pr/SKILL.md

security-review-pr is a skill for Claude Code, Codex from warpdotdev/oz-for-oss. It costs 66 tokens per session (1,650 once invoked), scanned A, original, MIT.

A pull-request security review that checks changed code and configuration for common risks. A pull request is a proposed change submitted for review before it is merged into a codebase.

In plain words
What is it for?
Use it to look for problems such as weak input checks, unsafe handling of secrets, missing access controls, risky dependencies, or authentication flaws.
Why use it?
It adds a focused security pass to the general review and combines the findings into one review report.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: installed under .agents/ (shared by several agents).

This is warpdotdev/oz-for-oss's own configuration. It tells Claude Code and Codex how to work on oz-for-oss itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything oz-for-oss configures →

Reuse

Borrowing it

Nothing to install: this file belongs to warpdotdev/oz-for-oss. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/warpdotdev/oz-for-oss/main/.agents/skills/security-review-pr/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/warpdotdev/oz-for-oss

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 security-review-pr

README.md
[![agentmods](https://agentmods.dev/badge/skills/warpdotdev/oz-for-oss/security-review-pr/github.svg)](https://agentmods.dev/skills/warpdotdev/oz-for-oss/security-review-pr)
Your own site
<a href="https://agentmods.dev/skills/warpdotdev/oz-for-oss/security-review-pr"><img src="https://agentmods.dev/badge/skills/warpdotdev/oz-for-oss/security-review-pr/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for security-review-pr

Your own site · 80×15
<a href="https://agentmods.dev/skills/warpdotdev/oz-for-oss/security-review-pr"><img src="https://agentmods.dev/badge/skills/warpdotdev/oz-for-oss/security-review-pr.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 66 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,650 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 1 finding, up to medium

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • medium Tool Misuse · line 52
    Tool defaults are unsafe or overly permissive (e.g. disabled TLS verification, no authentication, world-writable permissions). Unsafe defaults widen the attack surface.
    Fix: Override unsafe defaults with secure settings (verify=True, auth required, restrictive permissions). Review and harden all tool configurations.
How audits are shown
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 5.1 $0.00066 $0.01650
Opus 5.5 $0.00026 $0.00660
Sonnet 5.5 $0.00013 $0.00330
Haiku 4.5 $0.00007 $0.00165

Measured 1mo ago against content hash 34d11ddacfdf, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

security-review-pr scanned grade A with 1 finding 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 1mo 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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

- Fetching scripts over HTTP or piping curl to a shell inside build or CI steps.
.agents/skills/security-review-pr/SKILL.md · 117 lines

How it starts

The opening of the file, as written. The whole thing — 117 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Security Review PR Skill

Audit the current pull request for security concerns and fold any findings into the same review.json produced by the base review-pr skill.

Goal

Provide a focused security pass on top of the general PR review. This is a supplement to review-pr, not a separate output. Findings must be merged into the single combined review.json so reviewers receive one cohesive review.

Inputs

  • The working directory is the PR branch checkout.
  • The workflow usually provides an annotated diff in pr_diff.txt.
  • The workflow usually provides the PR description in pr_description.md.
  • Focus on the files and lines changed by this PR.
  • Default behavior: do not post comments or reviews to GitHub directly.

When to apply this skill

  • Apply on code PRs whenever review-pr is applied.
  • Do not apply on spec-only PRs handled by review-spec.
  • Skip the skill entirely when no changed file introduces code or configuration that touches the concerns below; it is better to stay silent than to manufacture findings.
  • Do not duplicate findings the base review-pr pass will already raise. If the base review would naturally catch an issue, leave it there rather than re-reporting it from the security pass.

Security concerns to audit

Evaluate each changed hunk against the following concerns. Treat the list as a checklist, not a ceiling — flag other clearly security-relevant issues when they appear.

Input validation and untrusted data

  • User-supplied or network-supplied input used without validation, length limits, or type checks.
  • Deserialization of untrusted data (e.g. pickle, yaml.load, eval, Function, JSON.parse feeding into a command).
  • Path traversal risk: user input concatenated into filesystem paths without normalization or an allowlist.
  • SSRF risk: user-controlled URLs passed to outbound HTTP clients without scheme or host restrictions.
  • Unbounded resource use driven by untrusted input (memory, loops, regex with catastrophic backtracking).

Read the full file on GitHub · 117 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. 1mo ago First seen · 117 lines · 66 tokens per session scan A 34d11ddacfdf

Subscribe to this mod's changes

security-review-pr is a skill published in the GitHub repository warpdotdev/oz-for-oss (312 stars, last pushed 1mo ago), licensed MIT. It adds 66 tokens to every session and 1,650 once invoked, about $0.0003 per session on Opus 5.5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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