csrf-hunter

csrf-hunter is an agent for Claude Code from naporin0624/claude-web-audit-plugins. It costs 47 tokens per session (1,294 once invoked), scanned B, original, no licence file.

A security agent focused on cross-site request forgery, or CSRF, an attack that tricks a logged-in browser into sending unwanted requests.

In plain words
What is it for?
Hunting specifically for missing CSRF tokens and related vulnerabilities in web applications.
Why use it?
It helps find state-changing forms and requests that lack protection against this attack.

Agent for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the web-audit-tools plugin — 18 skills, 5 commands, 11 agents shipped together

Good fit Hunting specifically for missing CSRF tokens and related vulnerabilities in web applications.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/naporin0624/claude-web-audit-plugins/csrf-hunter
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/naporin0624/claude-web-audit-plugins

Made for: Claude Code.

Or install web-audit-tools, the plugin that ships this one along with the rest of its 18 skills, 5 commands, 11 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 csrf-hunter

README.md
[![agentmods](https://agentmods.dev/badge/agents/naporin0624/claude-web-audit-plugins/csrf-hunter/github.svg)](https://agentmods.dev/agents/naporin0624/claude-web-audit-plugins/csrf-hunter)
Your own site
<a href="https://agentmods.dev/agents/naporin0624/claude-web-audit-plugins/csrf-hunter"><img src="https://agentmods.dev/badge/agents/naporin0624/claude-web-audit-plugins/csrf-hunter/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 csrf-hunter

Your own site · 80×15
<a href="https://agentmods.dev/agents/naporin0624/claude-web-audit-plugins/csrf-hunter"><img src="https://agentmods.dev/badge/agents/naporin0624/claude-web-audit-plugins/csrf-hunter.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 47 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,294 The whole file, excluding the scripts and references it only reads on demand.
Security scan B 2 findings. 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 $0.00047 $0.01294
Opus 5 $0.00023 $0.00647
Sonnet 5 $0.00009 $0.00259
Haiku 4.5 $0.00005 $0.00129

Measured 8d ago against content hash 22a0ea54a34a, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade B, and why

csrf-hunter scanned grade B with 2 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 8d 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.

Sends data to an external URLmediumData exfiltration

A POST to an outside endpoint may be telemetry or may be exfiltration; either way the mod talks to somewhere, and you should know where.

fetch('https://target.com/api/change-email', { method: 'POST',

Makes network callslowCapability

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

curl -I https://target.com/login 2>/dev/null | grep -i cookie
agents/csrf-hunter.md · 202 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

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. 8d ago First seen · 202 lines · 47 tokens per session scan B 22a0ea54a34a

Subscribe to this mod's changes

csrf-hunter is an agent published in the GitHub repository naporin0624/claude-web-audit-plugins (3 stars, last pushed 8mo ago), with no licence file. It adds 47 tokens to every session and 1,294 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it B with 2 findings (sends data to an external url, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.