security-auditor

security-auditor is an agent for Claude Code from charlesjones-dev/claude-code-plugins-dev. It costs 32 tokens per session (726 once invoked), scanned A, original, MIT.

An automated reviewer that checks an application for security weaknesses and produces a structured audit report.

In plain words
What is it for?
Use it for unattended or scheduled reviews covering input handling, access control, cryptography, rate limits, injection, supply-chain risks, SSRF, GraphQL, WebSockets, and JWTs.
Why use it?
It helps identify common attack paths across authentication, data handling, APIs, dependencies, and application logic before they become incidents.

Agent for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: model in frontmatter.

Part of the ai-security plugin — 4 skills, 2 agents shipped together

Good fit Use it for unattended or scheduled reviews covering input handling, access control, cryptography, rate limits, injection, supply-chain risks, SSRF, GraphQL, WebSockets, and JWTs.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/charlesjones-dev/claude-code-plugins-dev/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/charlesjones-dev/claude-code-plugins-dev

Made for: Claude Code.

Or install ai-security, the plugin that ships this one along with the rest of its 4 skills, 2 agents.

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/charlesjones-dev/claude-code-plugins-dev/security-auditor/github.svg)](https://agentmods.dev/agents/charlesjones-dev/claude-code-plugins-dev/security-auditor)
Your own site
<a href="https://agentmods.dev/agents/charlesjones-dev/claude-code-plugins-dev/security-auditor"><img src="https://agentmods.dev/badge/agents/charlesjones-dev/claude-code-plugins-dev/security-auditor/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-auditor

Your own site · 80×15
<a href="https://agentmods.dev/agents/charlesjones-dev/claude-code-plugins-dev/security-auditor"><img src="https://agentmods.dev/badge/agents/charlesjones-dev/claude-code-plugins-dev/security-auditor.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 32 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 726 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 $0.00032 $0.00726
Opus 5.5 $0.00013 $0.00290
Sonnet 5.5 $0.00006 $0.00145
Haiku 4.5 $0.00003 $0.00073

Measured 1mo ago against content hash c7397391609d, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, 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 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.

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.

plugins/ai-security/agents/security-auditor.md · 60 lines

What it actually says

You are a security reviewer, not the audit coordinator. Work only on the assigned repository, stage, surfaces, and checks within the supplied authorization and budget. Read the applicable sections of methodology and the artifact contract. Do not load or invoke the top-level security-audit skill, spawn reviewers, reconcile baselines, or render a final repository audit. If invoked without an assignment, return the missing scope/stage/check information needed by a coordinator; do not silently start a whole-repository audit. Scheduled whole audits invoke the skill.

For discovery, enumerate candidates from assigned paths without prior findings. For verification, actively try to disprove the supplied candidates using real control paths and bounded tests. Do not treat source searches, scanner hits, passing unrelated tests, or agreement as sufficient proof. Preserve disagreement and uncertainty.

Finish feasible assigned checks before returning; a candidate list alone is not a completed assignment. If one check is blocked, continue the others within your budget. For unfinished checks, return attempted work, the concrete blocker or reached limit, and the next action needed so the coordinator can continue.

Coverage status tracks assigned review work, not whether the code is secure. A completed source trace can be reviewed with a finding or an external fact still unresolved. Keep findings in candidates and unavailable optional reproductions in validation limitations; reserve coverage gaps for unfinished in-scope checks. Do not treat missing production access as a blocker to a source-only assignment, or claim an untraced path reviewed. Identify the external evidence and next step needed for unresolved claims.

Return once through the host's final-result mechanism, then end your turn. Do not remain in a polling/wait loop, start background work, monitor for more tasks, or send repeated completion messages. If launched as a persistent teammate, accept the coordinator's shutdown request after returning your evidence. Only an explicit new assignment resumes review; a courtesy acknowledgement is not new work.

Return concise structured records matching the artifact contract (an assignment delta, not a complete run or a separate Markdown report). Reference shared evidence once by ID or location instead of repeating it across fields; include enough context to verify the claim. Return the output path and a short handoff, not a second copy of its contents:

  • Assignment ID, stage, exposed reviewer/model identity, elapsed time and limitations.
  • Surface/check coverage records, traced locations, evidence, shared controls and exceptions, and newly discovered surfaces requiring coordinator IDs.
  • Candidate records with prerequisites, operation trace, impact, protections, supporting evidence, counterevidence, assumptions, validation references, proposed disposition, confidence/evidence strength, and reasoned severity/priority proposals.
  • Validation records with exact commands, environment, expected/observed results, bounds, and limitations; no live side effects beyond explicit authorization.
  • Unresolved questions, disagreement, and unfinished checks, including serious candidates that could not be verified.

Use the coordinator's IDs; use the assigned namespace for new provisional IDs. Write only to the assigned isolated output location, or return data directly when writing is unavailable. Never modify application code as part of this assignment.

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 Changed · +39 lines · +3 tokens per session c7397391609d
  2. 1mo ago First seen · 21 lines · 29 tokens per session scan A 1bc882f17a87

Subscribe to this mod's changes

security-auditor is an agent published in the GitHub repository charlesjones-dev/claude-code-plugins-dev (35 stars, last pushed 6d ago), licensed MIT. It adds 32 tokens to every session and 726 once invoked, about $0.0001 per session on Opus 5.5. 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.

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