appsec-code-review

appsec-code-review is a skill for Claude Code, Codex from jaskaranhundal/usap-skills. It costs 0 tokens per session (14 once invoked), scanned A, original, Apache-2.0.

A security-focused code-review skill for finding vulnerabilities in code changes. It covers common web risks described by OWASP, logic mistakes, unsafe dependencies, and incorrect cryptography, then provides severity and remediation details.

In plain words
What is it for?
Use it to review pull requests, identify security weaknesses, assign severity and CWE classifications, and write developer-friendly fixes.
Why use it?
It helps catch security defects before code is merged and explains how developers can fix them.

Skill for Claude CodeCodex

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

Part of the usap-skills plugin — 87 skills, 7 commands, 1 plugin shipped together

Good fit Use it to review pull requests, identify security weaknesses, assign severity and CWE classifications, and write developer-friendly fixes.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/jaskaranhundal/usap-skills/appsec-code-review
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.

Any agent
npx skills add jaskaranhundal/usap-skills --skill appsec-code-review
Clone the repo
git clone --depth 1 https://github.com/jaskaranhundal/usap-skills

Made for: Claude Code, Codex.

Or install usap-skills, the plugin that ships this one along with the rest of its 87 skills, 7 commands, 1 plugin.

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 appsec-code-review

README.md
[![agentmods](https://agentmods.dev/badge/skills/jaskaranhundal/usap-skills/appsec-code-review/github.svg)](https://agentmods.dev/skills/jaskaranhundal/usap-skills/appsec-code-review)
Your own site
<a href="https://agentmods.dev/skills/jaskaranhundal/usap-skills/appsec-code-review"><img src="https://agentmods.dev/badge/skills/jaskaranhundal/usap-skills/appsec-code-review/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 appsec-code-review

Your own site · 80×15
<a href="https://agentmods.dev/skills/jaskaranhundal/usap-skills/appsec-code-review"><img src="https://agentmods.dev/badge/skills/jaskaranhundal/usap-skills/appsec-code-review.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 0 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 14 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
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 $0.00000 $0.00014
Opus 5 $0.00000 $0.00007
Sonnet 5 $0.00000 $0.00003
Haiku 4.5 $0.00000 $0.00001

Measured 3d ago against content hash cb3da3f7f223, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

appsec-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 3d ago.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/appsec-code-review_tool.py), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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/skills/appsec-code-review/SKILL.md · 1 lines

What it actually says

../../../appsec-devsecops/appsec-code-review/SKILL.md

Files

What ships with it

5 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. 3d ago Changed · -132 lines · -35 tokens per session cb3da3f7f223
  2. 10d ago First seen · 133 lines · 35 tokens per session scan A 528dfa637578

Subscribe to this mod's changes

appsec-code-review is a skill published in the GitHub repository jaskaranhundal/usap-skills (4 stars, last pushed today), licensed Apache-2.0. It costs nothing until one of its globs matches a file; then it loads 14 tokens. 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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