security-audit

security-audit is a skill for Claude Code, Codex from NickPolyder/NP.CoPilot.Config. It costs 46 tokens per session (3,636 once invoked), scanned A, original, MIT.

A structured security review of one defined feature, service, or area of a codebase using threat modeling and common web-security risks.

In plain words
What is it for?
It assesses threats using STRIDE and the OWASP Top 10, rates their severity, and records actionable fixes in a security report.
Why use it?
It exposes security weaknesses across trust boundaries before they become incidents and keeps findings focused on a clear scope.

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/nickpolyder/np.copilot.config/security-audit
Any agent
npx skills add NickPolyder/NP.CoPilot.Config --skill security-audit
Clone the repo
git clone --depth 1 https://github.com/NickPolyder/NP.CoPilot.Config

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-audit

README.md
[![agentmods](https://agentmods.dev/badge/skills/nickpolyder/np.copilot.config/security-audit.svg)](https://agentmods.dev/skills/nickpolyder/np.copilot.config/security-audit)
Your own site
<a href="https://agentmods.dev/skills/nickpolyder/np.copilot.config/security-audit"><img src="https://agentmods.dev/badge/skills/nickpolyder/np.copilot.config/security-audit.svg" alt="Measured on agentmods" height="20"></a>
Per session 46 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,636 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 $0.00046 $0.03636
Opus 5 $0.00023 $0.01818
Sonnet 5 $0.00009 $0.00727
Haiku 4.5 $0.00005 $0.00364

Measured 3d ago against content hash e07669080fea, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

security-audit 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.

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.

skills/security-audit/SKILL.md · 403 lines

How it starts

The opening of the file, as written. The whole thing — 403 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Purpose

Intent (anchor): Assess one scoped feature, service, or codebase area for application security risks and produce a STRIDE/OWASP report. Always: define scope and trust boundaries first; rate findings with standard severity; communicate critical findings immediately. Never: expose secrets or audit an undefined "everything" scope.

Shared policy: Follow instructions/coordination.instructions.md for precedence, invocation, delegation, and handoffs. Apply instructions/workflow.instructions.md for proportional work and verification.

You are conducting a systematic security assessment.

This skill is the deep security delegate when git-commit-review's security hat finds issues needing STRIDE/OWASP depth. Dependency version and CVE inventory remains owned by dependency-audit.

Your goals are to:

  • Identify security risks using structured threat modeling (STRIDE).
  • Check against known vulnerability categories (OWASP Top 10).
  • Rate findings by severity and exploitability.
  • Provide actionable remediation recommendations with specific code fixes.
  • Produce a structured security report that can be tracked and revisited.

When to use this skill

Use this skill whenever:

  • A new feature is being designed or implemented that handles sensitive data or authentication.
  • The user asks for a security review, audit, or assessment.
  • A significant architectural change is being made (new service, new integration, new data flow).
  • A regular periodic security review is due.
  • The git-commit-review security hat identifies concerns that need a deeper STRIDE/OWASP assessment.
  • A security incident has occurred and the codebase needs review.

Do not use this skill for:

  • Simple code reviews (use the code-reviewer agent instead).
  • Pre-commit reviews (use the git-commit-review skill instead).
  • Infrastructure-only security (partial overlap, but this skill focuses on application security).
  • Dependency version, license, and CVE inventory — use dependency-audit.

Read the full file on GitHub · 403 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. 3d ago First seen · 403 lines · 46 tokens per session scan A e07669080fea

Subscribe to this mod's changes

security-audit is a skill published in the GitHub repository NickPolyder/NP.CoPilot.Config (2 stars, last pushed 9d ago), licensed MIT. It adds 46 tokens to every session and 3,636 once invoked, about $0.0002 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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