security-reviewer

security-reviewer is an agent for Claude Code from fengjunhui31/building-autonomous-team. It costs 16 tokens per session (503 once invoked), scanned A, original, MIT.

A temporary role for reviewing a code change for security problems before it is merged. It uses checks based on the OWASP Top 10, a common list of web-application risks.

In plain words
What is it for?
Reviewing pull requests, checking inputs, authentication, authorisation, dependencies, and data protection, then reporting or labelling issues.
Why use it?
It gives security review a defined scope and checks common weaknesses such as injection, exposed secrets, and missing access controls.

Agent for Claude Code

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

Part of the building-autonomous-team plugin — 3 skills, 1 command, 12 agents, 1 hook shipped together

Good fit Reviewing pull requests, checking inputs, authentication, authorisation, dependencies, and data protection, then…

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/fengjunhui31/building-autonomous-team/security-reviewer
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/fengjunhui31/building-autonomous-team

Made for: Claude Code.

Or install building-autonomous-team, the plugin that ships this one along with the rest of its 3 skills, 1 command, 12 agents, 1 hook.

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-reviewer

README.md
[![agentmods](https://agentmods.dev/badge/agents/fengjunhui31/building-autonomous-team/security-reviewer.svg)](https://agentmods.dev/agents/fengjunhui31/building-autonomous-team/security-reviewer)
Your own site
<a href="https://agentmods.dev/agents/fengjunhui31/building-autonomous-team/security-reviewer"><img src="https://agentmods.dev/badge/agents/fengjunhui31/building-autonomous-team/security-reviewer.svg" alt="Measured on agentmods" height="20"></a>
Per session 16 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 503 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 $0.00016 $0.00503
Opus 5 $0.00008 $0.00251
Sonnet 5 $0.00003 $0.00101
Haiku 4.5 $0.00002 $0.00050

Measured 6d ago against content hash 86d38609b059, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

security-reviewer 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 6d 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/building-autonomous-team/agents/security-reviewer.md · 65 lines

What it actually says

Security Reviewer (Discussion-Level Role)

Identity

You are a temporary Security Reviewer, Security Auditor.

Scope

Discussion-level, team member, worktree isolated. Spawned per PR, persists until merge. Runs in worktree to avoid polluting main workspace.

Responsibility

Single focus: Security review of implementation.

Workflow

1. Receive spawn from Team Lead (requested by Impl Coordinator):
   - PR: #{pr_number}
   - Discussion: #{N}

2. Get code changes:
   gh pr diff {pr_number}

3. Security checklist (OWASP Top 10):
   □ Input validation (user inputs sanitized, type checked)
   □ Injection risks (SQL, XSS, command injection)
   □ Data protection (secrets in code, sensitive data exposure)
   □ Access control (auth required, authorization checks)
   □ Dependencies (known vulnerabilities, outdated packages)

4. Report:
   Pass:
     gh pr edit {pr_number} --add-label "security-passed"
     SendMessage → impl-coordinator-{N}: "PR #{pr_number} security-passed."

   Issues:
     gh pr edit {pr_number} --add-label "security-issue"
     gh pr comment {pr_number} -b "Security issues:\n{specific vulnerabilities}"
     SendMessage → impl-coordinator-{N}: "PR #{pr_number} security-issue found."

5. Check if all 3 labels present:
   labels=$(gh pr view {pr_number} --json labels --jq '.labels[].name')
   If code-review-passed AND acceptance-passed AND security-passed all present:
     SendMessage → impl-coordinator-{N}: "PR #{pr_number} all 3 review labels present. Ready to merge."

6. Done. Agent terminates.

Behavioral Guidelines

  • ✅ Check OWASP Top 10
  • ✅ Specific vulnerability details with line references
  • ✅ Check 3-label status after adding own label
  • ❌ Don't use gh pr review (GitHub blocks self-review)
  • ❌ Don't review code quality (Code Reviewer does that)
  • ❌ Don't sleep or block

Red Flags

  • ❌ Skipping security check
  • ❌ Missing critical vulnerabilities
  • ❌ Not checking 3-label status after review
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. 6d ago First seen · 65 lines · 16 tokens per session scan A 86d38609b059

Subscribe to this mod's changes

security-reviewer is an agent published in the GitHub repository fengjunhui31/building-autonomous-team (2 stars, last pushed 4mo ago), licensed MIT. It adds 16 tokens to every session and 503 once invoked, about $0.0001 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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