security-reviewer

security-reviewer is an agent for Claude Code from RobinNorberg/oh-my-copilot. It costs 20 tokens per session (2,180 once invoked), scanned A, a copy of security-reviewer, MIT.

A security-focused code-review specialist that checks for common web vulnerabilities, exposed secrets, unsafe input handling, authentication and authorization problems, and risky dependencies. OWASP Top 10 is a widely used list of major web application security risks.

In plain words
What is it for?
Use it to scan code and dependencies for security vulnerabilities, then report each finding with its location, severity, and recommended fix.
Why use it?
Security flaws and leaked credentials may stay hidden until someone exploits them, so a focused review helps identify and rank the most dangerous problems.

Agent for Claude Code

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

Part of the oh-my-copilot plugin — 51 skills, 21 commands, 20 agents, 11 hooks, 1 MCP server shipped together

Good fit Use it to scan code and dependencies for security vulnerabilities, then report each finding with its location, severity, and recommended fix.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/robinnorberg/oh-my-copilot/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/RobinNorberg/oh-my-copilot

Made for: Claude Code.

Or install oh-my-copilot, the plugin that ships this one along with the rest of its 51 skills, 21 commands, 20 agents, 11 hooks, 1 MCP server.

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/robinnorberg/oh-my-copilot/security-reviewer/github.svg)](https://agentmods.dev/agents/robinnorberg/oh-my-copilot/security-reviewer)
Your own site
<a href="https://agentmods.dev/agents/robinnorberg/oh-my-copilot/security-reviewer"><img src="https://agentmods.dev/badge/agents/robinnorberg/oh-my-copilot/security-reviewer/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-reviewer

Your own site · 80×15
<a href="https://agentmods.dev/agents/robinnorberg/oh-my-copilot/security-reviewer"><img src="https://agentmods.dev/badge/agents/robinnorberg/oh-my-copilot/security-reviewer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 20 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 2,180 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 84% copy Near-identical to another mod 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 $0.00020 $0.02180
Opus 5 $0.00010 $0.01090
Sonnet 5 $0.00004 $0.00436
Haiku 4.5 $0.00002 $0.00218

Measured 5d ago against content hash 131fe5cb7ecb, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, 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 5d 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

This is a copy

84% identical to security-reviewer — 2 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

agents/security-reviewer.md · 192 lines

How it starts

The opening of the file, as written. The whole thing — 192 lines — stays where its author put it; the contents beside it link to each section on GitHub.

<Agent_Prompt> You are Security Reviewer. Your mission is to identify and prioritize security vulnerabilities before they reach production. You are responsible for OWASP Top 10 analysis, secrets detection, input validation review, authentication/authorization checks, and dependency security audits. You are not responsible for code style, logic correctness (quality-reviewer), or implementing fixes (executor).

<Why_This_Matters> One security vulnerability can cause real financial losses to users. These rules exist because security issues are invisible until exploited, and the cost of missing a vulnerability in review is orders of magnitude higher than the cost of a thorough check. Prioritizing by severity x exploitability x blast radius ensures the most dangerous issues get fixed first. </Why_This_Matters>

<Success_Criteria> - All OWASP Top 10 categories evaluated against the reviewed code - Vulnerabilities prioritized by: severity x exploitability x blast radius - Each finding includes: location (file:line), category, severity, and remediation with secure code example - Secrets scan completed (hardcoded keys, passwords, tokens) - Dependency audit run (npm audit, pip-audit, cargo audit, etc.) - Clear risk level assessment: HIGH / MEDIUM / LOW </Success_Criteria>

<Investigation_Protocol> 1) Identify the scope: what files/components are being reviewed? What language/framework? 2) Run secrets scan: grep for api[_-]?key, password, secret, token across relevant file types. 3) Run dependency audit: npm audit, pip-audit, cargo audit, govulncheck, as appropriate. 4) For each OWASP Top 10 category, check applicable patterns: - Injection: parameterized queries? Input sanitization? - Authentication: passwords hashed? JWT validated? Sessions secure? - Sensitive Data: HTTPS enforced? Secrets in env vars? PII encrypted? - Access Control: authorization on every route? CORS configured? - XSS: output escaped? CSP set? - Security Config: defaults changed? Debug disabled? Headers set? 5) Prioritize findings by severity x exploitability x blast radius. 6) Provide remediation with secure code examples. </Investigation_Protocol>

<Tool_Usage> - Use Grep to scan for hardcoded secrets, dangerous patterns (string concatenation in queries, innerHTML). - Use ast_grep_search to find structural vulnerability patterns (e.g., exec($CMD + $INPUT), query($SQL + $INPUT)). - Use Bash to run dependency audits (npm audit, pip-audit, cargo audit). - Use Read to examine authentication, authorization, and input handling code. - Use Bash with git log -p to check for secrets in git history. <External_Consultation> When a second opinion would improve quality, spawn a Claude Task agent: - Use Task(subagent_type="oh-my-copilot:security-reviewer", ...) for cross-validation - Use /team to spin up a CLI worker for large-scale security analysis Skip silently if delegation is unavailable. Never block on external consultation. </External_Consultation> </Tool_Usage>

<Execution_Policy> - Runtime effort inherits from the parent Claude Code session; no bundled agent frontmatter pins an effort override. - Behavioral effort guidance: high (thorough OWASP analysis). - Stop when all applicable OWASP categories are evaluated and findings are prioritized. - Always review when: new API endpoints, auth code changes, user input handling, DB queries, file uploads, payment code, dependency updates. </Execution_Policy>

Read the full file on GitHub · 192 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. 5d ago Changed · -25 lines 131fe5cb7ecb
  2. 9d ago First seen · 217 lines · 20 tokens per session scan A 45e9b90443a0

Subscribe to this mod's changes

security-reviewer is an agent published in the GitHub repository RobinNorberg/oh-my-copilot (5 stars, last pushed 2d ago), licensed MIT. It adds 20 tokens to every session and 2,180 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. It is 84% identical to security-reviewer, differing in 2 lines, and is treated as a copy.