spica: Agent for Claude Code

.claude/agents/security-reviewer.md

security-reviewer is an agent for Claude Code from spica-engine/spica. It costs 41 tokens per session (920 once invoked), scanned A, original, AGPL-3.0.

A security-focused code review agent for finding vulnerabilities, checking OWASP Top 10 risks, and examining authentication, authorization, and AI integrations.

In plain words
What is it for?
Use it to audit application code and AI or language-model integrations for common security problems.
Why use it?
It brings security concerns into code review, including risks that may not be visible from normal functional testing.

Agent for Claude Code

Written for Claude Code: installed under .claude/.

This is spica-engine/spica's own configuration. It tells Claude Code how to work on spica itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything spica configures →

Reuse

Borrowing it

Nothing to install: this file belongs to spica-engine/spica. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/spica-engine/spica/master/.claude/agents/security-reviewer.md
Clone the repo
git clone --depth 1 https://github.com/spica-engine/spica

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/spica-engine/spica/security-reviewer/github.svg)](https://agentmods.dev/agents/spica-engine/spica/security-reviewer)
Your own site
<a href="https://agentmods.dev/agents/spica-engine/spica/security-reviewer"><img src="https://agentmods.dev/badge/agents/spica-engine/spica/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/spica-engine/spica/security-reviewer"><img src="https://agentmods.dev/badge/agents/spica-engine/spica/security-reviewer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 41 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 920 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. A grade says what 26 rules found in the file — not that it is safe.
Origin unknown 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 $0.00041 $0.00920
Opus 5.5 $0.00016 $0.00368
Sonnet 5.5 $0.00008 $0.00184
Haiku 4.5 $0.00004 $0.00092

Measured 1mo ago against content hash 1d5f84aa4137, 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 1 finding 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 1mo 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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

response = requests.get(api_url)
.claude/agents/security-reviewer.md · 154 lines

The source is not reproduced here

Licensed AGPL-3.0

The repository is licensed AGPL-3.0, which this catalogue does not treat as permission to reproduce the file. Read it at the source.

Read it on GitHub

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. 1mo ago First seen · 154 lines · 41 tokens per session scan A 1d5f84aa4137

Subscribe to this mod's changes

security-reviewer is an agent published in the GitHub repository spica-engine/spica (101 stars, last pushed yesterday), licensed AGPL-3.0. It adds 41 tokens to every session and 920 once invoked, about $0.0002 per session on Opus 5.5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-01.

Related

Other agents, from other repositories