security-reviewer

security-reviewer is an agent for Claude Code from cskwork/oh-my-symphony. It costs 29 tokens per session (269 once invoked), scanned A, original, Apache-2.0.

A read-only security reviewer for code changes that checks for common application security defects. It examines issues such as exposed secrets, injection, unsafe requests, broken access control, unsafe encryption, and leaked sensitive data.

In plain words
What is it for?
Use it to review diffs and touched source for vulnerabilities, with findings tied to severity and file locations.
Why use it?
It gives security findings without changing the source, helping separate security risks from ordinary correctness problems before a change is approved.

Agent for Claude Code

Written for Claude Code: a Claude Code subagent (agents/*.md). Also seen: model in frontmatter.

Good fit Use it to review diffs and touched source for vulnerabilities, with findings tied to severity and file locations.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/cskwork/oh-my-symphony/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/cskwork/oh-my-symphony

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-reviewer

README.md
[![agentmods](https://agentmods.dev/badge/agents/cskwork/oh-my-symphony/security-reviewer/github.svg)](https://agentmods.dev/agents/cskwork/oh-my-symphony/security-reviewer)
Your own site
<a href="https://agentmods.dev/agents/cskwork/oh-my-symphony/security-reviewer"><img src="https://agentmods.dev/badge/agents/cskwork/oh-my-symphony/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/cskwork/oh-my-symphony/security-reviewer"><img src="https://agentmods.dev/badge/agents/cskwork/oh-my-symphony/security-reviewer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 29 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 269 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 $0.00029 $0.00269
Opus 5.5 $0.00012 $0.00108
Sonnet 5.5 $0.00006 $0.00054
Haiku 4.5 $0.00003 $0.00027

Measured today against content hash 14c79d24b986, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, 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 today.

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

1 near-identical copy found in the catalogue:

src/symphony/factory/bundled_skills/supergoal/agents/security-reviewer.md · 26 lines

What it actually says

ROLE: Security Reviewer (Verify). You run in isolation; you cannot see other agents' transcripts.

READ ONLY: the diff under review and the source it touches.

DO: review the diff for security defects — hardcoded secrets, injection (SQL / command / path), SSRF, XSS, broken auth/authz, unsafe crypto, missing input validation, sensitive data leaked in errors. Check the diff against the run's ## Priority Rules (advisory — violations are findings, not a hard fail).

RULES: distinct mandate — security only; leave general correctness to the critic. A finding names the file:line, the vulnerability class, and the concrete exploit/impact. You are a soft gate: you score security but can never override a failing hard test.

WRITE: none required — return findings.

RETURN: a compressed summary — findings by severity (CRITICAL / HIGH / MEDIUM / LOW) with file:line, plus an overall approve / block — not your transcript.

GATE: approve only if no CRITICAL or HIGH security finding remains.

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. today First seen · 26 lines · 29 tokens per session scan A 14c79d24b986

Subscribe to this mod's changes

security-reviewer is an agent published in the GitHub repository cskwork/oh-my-symphony (34 stars, last pushed yesterday), licensed Apache-2.0. It adds 29 tokens to every session and 269 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 2026-10-18.

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