security-reviewer

security-reviewer is an agent for Claude Code from ulises-jeremias/agent-toolkit. It costs 56 tokens per session (1,088 once invoked), scanned A, original, MIT.

A specialist that checks application code for common security weaknesses, including unsafe input handling, authentication problems, access-control errors, exposed data, and vulnerable dependencies.

In plain words
What is it for?
Use it when reviewing application code or changes involving authentication, data, or APIs, including checks related to the OWASP Top 10, a list of common web-application risks.
Why use it?
It can find security problems before they reach production and provides a separate check from the person implementing the change.

Agent for Claude Code

Written for Claude Code: a Claude Code subagent (agents/*.md).

Part of the agent-toolkit-agents plugin — 18 agents shipped together

Good fit Use it when reviewing application code or changes involving authentication, data, or APIs, including checks related to the OWASP Top 10, a list of common web-application risks.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/ulises-jeremias/agent-toolkit/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/ulises-jeremias/agent-toolkit

Made for: Claude Code.

Or install agent-toolkit-agents, the plugin that ships this one along with the rest of its 18 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-reviewer

README.md
[![agentmods](https://agentmods.dev/badge/agents/ulises-jeremias/agent-toolkit/security-reviewer.svg)](https://agentmods.dev/agents/ulises-jeremias/agent-toolkit/security-reviewer)
Your own site
<a href="https://agentmods.dev/agents/ulises-jeremias/agent-toolkit/security-reviewer"><img src="https://agentmods.dev/badge/agents/ulises-jeremias/agent-toolkit/security-reviewer.svg" alt="Measured on agentmods" height="20"></a>
Per session 56 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,088 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 $0.00056 $0.01088
Opus 5 $0.00028 $0.00544
Sonnet 5 $0.00011 $0.00218
Haiku 4.5 $0.00006 $0.00109

Measured 8d ago against content hash 994d767427e8, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, 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 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.

plugins/agent-toolkit-agents/.github/agents/security-reviewer.agent.md · 83 lines

How it starts

The opening of the file, as written. The whole thing — 83 lines — stays where its author put it; the contents beside it link to each section on GitHub.

You are security-reviewer at agent-toolkit — the app-code security specialist. Identify vulnerabilities before they reach production — distinct from agentic-security-reviewer (LLM/tool/MCP).

Agent vs skill rule — why agent (cite clause)

  • Independent verification boundary + disjoint surface from agentic + explicit handoff: App-code vuln audit (SQLi/XSS/IDOR, auth) is a focused verification step that must not self-approve implementer's code; isolation gives useful verification boundary separate from security-engineer's STRIDE orchestration. Decision: KEEP AS SPECIALIST.

When to use vs holistic

  • Use this specialist when security-engineer delegates per agentic-security/owasp-agentic-review or quality/codeql (app surface, specialist_agents: [security-reviewer]) or change touches auth/data/API.
  • Use security-engineer directly for threat-modeling scope, agentic surface, supply-chain/MCP, or when coordinating findings across app + agentic.

Caller / skills / handoff

  • Caller (holistic owner): security-engineer (canonical) via quality/codeql + agentic-security/owasp-agentic-review; assistant routes to security-engineer first. See capabilities/skills/registry.yaml specialist_agents.
  • Skills used: quality/codeql (SARIF triage), agentic-security/owasp-agentic-review (OWASP template for app Top 10 when applicable).
  • Expected handoff: Returns severity-ranked findings (file:line + CVE/OWASP Top 10 + impact + mitigation) to security-engineer; security-engineer synthesizes and escalates to architect/reviewer as needed.

You are a security reviewer at agent-toolkit. Identify vulnerabilities before they reach production.

When invoked

  1. Run git diff HEAD to see recent changes
  2. Focus on security-sensitive code paths
  3. Check for issues in full context, not just the diff

OWASP Top 10 checklist

Injection

  • SQL: parameterized queries only, never string concatenation
  • Command injection: no unsanitized user input to shell commands
  • XSS: proper output encoding in templates and React

Read the full file on GitHub · 83 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 · 83 lines · 56 tokens per session scan A 994d767427e8

Subscribe to this mod's changes

security-reviewer is an agent published in the GitHub repository ulises-jeremias/agent-toolkit (16 stars, last pushed today), licensed MIT. It adds 56 tokens to every session and 1,088 once invoked, about $0.0003 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

ndv-design

Design judgment specialist. Use when UI code, components, or flows need visual and UX assessment — or when a design decision needs principled justification. Reads code as its rendered visual output. The broken hierarchy, the absent affordance, the interaction that taxes working memory beyond its limit — these register…

emb715/neurodiveragents · 69 tokens

ndv-review

Code review specialist. Use when reviewing PRs, changed files, or any code that needs quality assessment. Sensory processing sensitivity — nothing is filtered as background noise, every inconsistency is fully registered and reported at the correct severity.

emb715/neurodiveragents · 50 tokens

Code Reviewer

Automated code review agent with security, performance, and quality analysis.

DollhouseMCP/mcp-server · 16 tokens

adversarial-reviewer

Fails a draft before it ships. Invoked by humanise Step 6 (external pieces) and Step D5 (mandatory for long-form), and by the self-harness acceptance gate for high-stakes changes. Runs in a separate context with no access to the drafting rationale, because the writer shares the draft's blind spots.

Nisus74/humanise · 72 tokens

improvement-proposer

Drafts bounded engine-change proposals from mined weakness clusters (candidates.json), in the four-part self-harness schema. Separate context; sees only the evidence and the named engine surfaces, with no access to the conversation that produced them.

Nisus74/humanise · 52 tokens

ios-code-reviewer

Use this agent when you need to review Swift/iOS code for quality, best practices, and potential issues. This agent should be invoked:\n\nProactive Usage Examples:\n- After implementing a new feature or component\n- After refactoring existing code\n- Before submitting a pull request\n- After making architectural…

carloshpdoc/ios-workflow-claude · 0 tokens