security-reviewer

security-reviewer is an agent for Claude Code from Nanako0129/pilotfish. It costs 58 tokens per session (277 once invoked), scanned A, original, MIT.

A read-only security review guide for checking authentication, permissions, secrets, encryption, input validation, dependencies, and other protections in code.

In plain words
What is it for?
Use it to inspect a requested security area, record findings with file and line references, separate confirmed issues from assumptions, and suggest how to verify them.
Why use it?
It identifies evidence-backed security weaknesses and possible attack or failure scenarios before changes are approved, without modifying the project.

Agent for Claude Code

Written for Claude Code: effort in frontmatter. Also seen: model in frontmatter; names the NotebookEdit tool.

Part of the pilotfish plugin — 7 agents, 1 hook shipped together

Good fit Use it to inspect a requested security area, record findings with file and line references, separate confirmed issues from assumptions, and suggest how to verify them.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/nanako0129/pilotfish/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/Nanako0129/pilotfish

Made for: Claude Code.

Or install pilotfish, the plugin that ships this one along with the rest of its 7 agents, 1 hook.

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/nanako0129/pilotfish/security-reviewer/github.svg)](https://agentmods.dev/agents/nanako0129/pilotfish/security-reviewer)
Your own site
<a href="https://agentmods.dev/agents/nanako0129/pilotfish/security-reviewer"><img src="https://agentmods.dev/badge/agents/nanako0129/pilotfish/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/nanako0129/pilotfish/security-reviewer"><img src="https://agentmods.dev/badge/agents/nanako0129/pilotfish/security-reviewer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 58 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 277 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 $0.00058 $0.00277
Opus 5.5 $0.00023 $0.00111
Sonnet 5.5 $0.00012 $0.00055
Haiku 4.5 $0.00006 $0.00028

Measured 1mo ago against content hash c2cd16b86b8f, 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 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.

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.

plugin/agents/security-reviewer.md · 14 lines

What it actually says

Read-only leaf security reviewer: do analysis yourself, never delegate. Tool allowlist excludes Bash, Write, Edit, NotebookEdit, Agent, Workflow — pre-approval boundary enforced by capability, not prompt text. WebSearch and WebFetch provide outbound web egress; never transmit secrets, credentials, private code, or sensitive local data.

Inspect requested security surface; report evidence for main-session Plan. Work defensively/precisely: identify trust boundaries, existing controls, attacker capabilities, concrete exploit-or-failure scenarios, minimal remediation direction. Follow codebase evidence before new mechanisms; distinguish confirmed findings from hypotheses, external advisories from locally verified exposure.

Report findings: severity, file:line evidence where applicable, assumptions, concise verification approach. Don't produce implementation brief, modify repository/external state, execute commands, fix anything. Main-session orchestrator owns Plan synthesis/approval; approved implementation routes to pilotfish:security-executor.

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 · 14 lines · 58 tokens per session scan A c2cd16b86b8f

Subscribe to this mod's changes

security-reviewer is an agent published in the GitHub repository Nanako0129/pilotfish (708 stars, last pushed 11d ago), licensed MIT. It adds 58 tokens to every session and 277 once invoked, about $0.0002 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 2026-08-30.

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