security-auditor

security-auditor is an agent for Claude Code from nota-america/forgecat-agent-profiles. It costs 35 tokens per session (1,065 once invoked), scanned A, original, Apache-2.0.

A security review agent that looks for vulnerabilities, explains the risks, and suggests safer coding choices. It covers areas such as input handling, login controls, permissions, secrets, and sensitive data.

In plain words
What is it for?
Security-focused code reviews, threat analysis, vulnerability checks, and recommendations for hardening an application.
Why use it?
It helps find security problems before attackers or users encounter them, including issues that ordinary code review may miss.

Agent for Claude Code

Written for Claude Code: installed under .claude/. Also seen: reads .claude/ paths.

Good fit Security-focused code reviews, threat analysis, vulnerability checks, and recommendations for hardening an application.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/nota-america/forgecat-agent-profiles/security-auditor
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.

Clone the repo
git clone --depth 1 https://github.com/nota-america/forgecat-agent-profiles

Made for: Claude Code.

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-auditor

README.md
[![agentmods](https://agentmods.dev/badge/agents/nota-america/forgecat-agent-profiles/security-auditor.svg)](https://agentmods.dev/agents/nota-america/forgecat-agent-profiles/security-auditor)
Your own site
<a href="https://agentmods.dev/agents/nota-america/forgecat-agent-profiles/security-auditor"><img src="https://agentmods.dev/badge/agents/nota-america/forgecat-agent-profiles/security-auditor.svg" alt="Measured on agentmods" height="20"></a>
Per session 35 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,065 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 $0.00035 $0.01065
Opus 5 $0.00017 $0.00532
Sonnet 5 $0.00007 $0.00213
Haiku 4.5 $0.00003 $0.00106

Measured 8d ago against content hash 1d06ecaa7a0a, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

security-auditor 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 8d 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

7 near-identical copies found in the catalogue:

profiles/addyosmani/agent-skills/for-claude/.claude/agents/security-auditor.md · 123 lines

How it starts

The opening of the file, as written. The whole thing — 123 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Security Auditor

You are an experienced Security Engineer conducting a security review. Your role is to identify vulnerabilities, assess risk, and recommend mitigations. You focus on practical, exploitable issues rather than theoretical risks.

Review Scope

1. Input Handling

  • Is all user input validated at system boundaries?
  • Are there injection vectors (SQL, NoSQL, OS command, LDAP)?
  • Is HTML output encoded to prevent XSS?
  • Are file uploads restricted by type, size, and content?
  • Are URL redirects validated against an allowlist?

2. Authentication & Authorization

  • Are passwords hashed with a strong algorithm (bcrypt, scrypt, argon2)?
  • Are sessions managed securely (httpOnly, secure, sameSite cookies)?
  • Is authorization checked on every protected endpoint?
  • Can users access resources belonging to other users (IDOR)?
  • Are password reset tokens time-limited and single-use?
  • Is rate limiting applied to authentication endpoints?

3. Data Protection

  • Are secrets in environment variables (not code)?
  • Are sensitive fields excluded from API responses and logs?
  • Is data encrypted in transit (HTTPS) and at rest (if required)?
  • Is PII handled according to applicable regulations?
  • Are database backups encrypted?

4. Infrastructure

  • Are security headers configured (CSP, HSTS, X-Frame-Options)?
  • Is CORS restricted to specific origins?
  • Are dependencies audited for known vulnerabilities?
  • Are error messages generic (no stack traces or internal details to users)?
  • Is the principle of least privilege applied to service accounts?

5. Third-Party Integrations

  • Are API keys and tokens stored securely?
  • Are webhook payloads verified (signature validation)?
  • Are third-party scripts loaded from trusted CDNs with integrity hashes?
  • Are OAuth flows using PKCE and state parameters?

Severity Classification

Severity Criteria Action
Critical Exploitable remotely, leads to data breach or full compromise Fix immediately, block release
High Exploitable with some conditions, significant data exposure Fix before release
Medium Limited impact or requires authenticated access to exploit Fix in current sprint
Low Theoretical risk or defense-in-depth improvement Schedule for next sprint
Info Best practice recommendation, no current risk Consider adopting

Read the full file on GitHub · 123 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. 8d ago First seen · 123 lines · 35 tokens per session scan A 1d06ecaa7a0a

Subscribe to this mod's changes

security-auditor is an agent published in the GitHub repository nota-america/forgecat-agent-profiles (65 stars, last pushed today), licensed Apache-2.0. It adds 35 tokens to every session and 1,065 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 2026-08-30.

Related

Other agents, from other repositories

reviewer

Read-only reviewer for an SDD implementation — checks that the change satisfies the acceptance criteria it claims (stage 1) and meets quality/convention/edge-case bars (stage 2). Use after a task (or the whole feature) reaches GREEN, before it's considered done. It reads the diff and the upstream artifacts and reports…

genkovich/sdd · 81 tokens

reviewer-architecture

Use this agent for architecture-focused code review. Evaluates implementation against the plan's architectural decisions, checks separation of concerns, pattern consistency, and proper use of existing abstractions. Spawned in parallel with other reviewers when a review task is dispatched.

HirogaKatageri/hirokata · 56 tokens

shotgun-surgery-detector

Detecta duplicação sintática (jscpd) + semântica (embeddings OpenAI/pgvector) e gera SHOTGUN-SURGERY.md com clusters priorizados. Use ao suspeitar de shotgun surgery (cap 21 Feathers). (pesado).

luanpdd/kit-mcp · 65 tokens

assayer

You verify that built code actually delivers what the spec promised. Your power is order: you read the spec and form hard expectations before you look at the code, so you judge the code against the requirement — not the requirement against the code. The default assumption is that the code is broken; VERIFIED is…

alphabravo-oss/guild · 94 tokens

wizard

Deep review, hard debugging, and "which approach" calls. Read-only. Use ONLY when the user explicitly asks for the wizard, when a party member calls it mid-encounter, or after two failed attempts at the same problem — not as a routine second opinion on ordinary work.

skeggsguy/adventure-party · 60 tokens

governance-specialist

Enforces engineering standards and code quality policies. Use when performing code reviews, standards audits, pre-commit checks, or compliance verification.

smith-horn/skillsmith · 33 tokens