secure-code-review

A security code-review process based on the OWASP Top 10, a widely used list of common web-application security risks, plus related weakness categories.

In plain words
What is it for?
Use it for security audits, dependency checks, vulnerability reviews, audit reports, fixes, and verification.
Why use it?
It provides a consistent way to look for vulnerabilities in code, dependencies, and changes instead of relying on an informal review.

Skill for Claude CodeCodex

Part of the security-auditor plugin — 1 skill, 7 commands, 3 agents 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/sembraniteam/claude-plugins/secure-code-review
Any agent
npx skills add sembraniteam/claude-plugins --skill secure-code-review
Clone the repo
git clone --depth 1 https://github.com/sembraniteam/claude-plugins

Made for: Claude Code, Codex.

Or install security-auditor, the plugin that ships this one along with the rest of its 1 skill, 7 commands, 3 agents.

Per session 109 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,526 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 $0.00109 $0.03526
Opus 5 $0.00055 $0.01763
Sonnet 5 $0.00022 $0.00705
Haiku 4.5 $0.00011 $0.00353

Measured 2d ago against content hash 95f002b1fc8b, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

secure-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.

security-auditor/skills/secure-code-review/SKILL.md · 247 lines

How it starts

The opening of the file, as written. The whole thing — 247 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Secure Code Review Methodology

This skill provides the checklist, CWE mapping, and report template used by all security-auditor commands.

Additional Resources

  • references/baseline-suppression.md.security-audit-baseline.json format, matching rules, and how to fold suppressions into a report. Read this whenever a project has a baseline file, or when the user asks to suppress/accept a finding.
  • references/sarif-output.md — SARIF 2.1.0 structure, field rules, and severity mapping for /audit-report --sarif. Read this only when generating SARIF output.
  • references/remediation-protocol.md — Fix manifest schema, reviewer verdict values, the one-retry rule, and per-CWE minimal-fix examples used by security-fixer and fix-reviewer. Read this when fixing or verifying findings (/audit-fix, /audit-verify), not during a plain audit.

OWASP Top 10 (2025) Checklist + Extended Categories

Work through each category. Mark each as: ✓ checked, ⚠ findings, or N/A (not applicable to this codebase).

OWASP Top 10

# Category Key checks
A01 Broken Access Control Missing authz checks, IDOR, path traversal, CORS misconfiguration, privilege escalation, SSRF (outbound HTTP with user-controlled URL, missing allowlist, cloud metadata endpoint exposure)
A02 Security Misconfiguration Default credentials, unnecessary features enabled, verbose errors, missing security headers, overly-permissive cloud storage policies
A03 Software Supply Chain Failures Dependencies with known CVEs (verified via MCP, never from memory), untrusted/typosquatted packages, unsigned or unverified build artifacts/container images, missing dependency pinning or SBOM
A04 Cryptographic Failures Sensitive data in plaintext, weak algorithms, static keys/IVs, missing TLS
A05 Injection SQL, NoSQL, OS command, LDAP, XPath, template, expression language
A06 Insecure Design Missing rate limiting, insecure direct object references in design, trust boundary violations
A07 Authentication Failures Weak passwords, missing MFA support, insecure session management, credential stuffing exposure
A08 Software or Data Integrity Failures Unsigned updates/plugins, insecure deserialization, missing checksums/digital signatures, absent tamper-detection on critical data
A09 Security Logging & Alerting Failures No audit trail for sensitive ops, PII logged, log injection, missing alerting on suspicious activity
A10 Mishandling of Exceptional Conditions Verbose error messages leaking internals, fail-open logic on exception/error paths, unhandled timeouts, generic catch-alls masking security failures

Read the full file on GitHub · 247 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. 2d ago First seen · 247 lines · 109 tokens per session scan A 95f002b1fc8b

Subscribe to this mod's changes

secure-code-review is a skill published in the GitHub repository sembraniteam/claude-plugins (2 stars, last pushed 29d ago), licensed MIT. It adds 109 tokens to every session and 3,526 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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