security-reviewer

security-reviewer is an agent for coding agents from cskwork/supergoal-skill. It costs 29 tokens per session (264 once invoked), scanned A, original, MIT.

A read-only security reviewer for code changes. It checks the changed code and related source for common security problems such as leaked secrets, injection, unsafe requests, broken access control, and unsafe encryption.

In plain words
What is it for?
Use it during verification to review a diff, classify findings by severity, identify the affected file and line, and approve or block based on serious issues.
Why use it?
It helps find security defects before code is accepted, without changing the source or taking over general correctness review.

Agent

Part of the supergoal plugin — 2 skills, 13 agents shipped together

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.

agentmods
npx agentmods add agents/cskwork/supergoal-skill/security-reviewer
Clone the repo
git clone --depth 1 https://github.com/cskwork/supergoal-skill

Or install supergoal, the plugin that ships this one along with the rest of its 2 skills, 13 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/cskwork/supergoal-skill/security-reviewer.svg)](https://agentmods.dev/agents/cskwork/supergoal-skill/security-reviewer)
Your own site
<a href="https://agentmods.dev/agents/cskwork/supergoal-skill/security-reviewer"><img src="https://agentmods.dev/badge/agents/cskwork/supergoal-skill/security-reviewer.svg" alt="Measured on agentmods" 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 264 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00029 $0.00264
Opus 5 $0.00015 $0.00132
Sonnet 5 $0.00006 $0.00053
Haiku 4.5 $0.00003 $0.00026

Measured 3d ago against content hash a4a7ed98ba41, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, 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 3d 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.

skills/supergoal/agents/security-reviewer.md · 25 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 verifier. 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. 3d ago First seen · 25 lines · 29 tokens per session scan A a4a7ed98ba41

Subscribe to this mod's changes

security-reviewer is an agent published in the GitHub repository cskwork/supergoal-skill (4 stars, last pushed 5d ago), licensed MIT. It adds 29 tokens to every session and 264 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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