web-assessment

web-assessment is a skill for Claude Code, Codex from ogrodev/fsociety. It costs 557 tokens per session (4,104 once invoked), scanned A, original, MIT.

A structured guide for checking web applications for security weaknesses such as cross-site scripting, SQL injection, and server-side request forgery.

In plain words
What is it for?
It is for systematically assessing web applications, prioritising checks by the technology used, and tracking findings that may form an attack chain.
Why use it?
It helps testers choose suitable checks and tools for each type of vulnerability instead of testing randomly.

Skill for Claude CodeCodex

Installs and runs on its own, but its text points at files inside the plugin that ships it — anything it tells you to read at a ${CLAUDE_PLUGIN_ROOT} path is only there once the plugin is installed.

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 skills/ogrodev/fsociety/web-assessment
Any agent
npx skills add ogrodev/fsociety --skill web-assessment
Clone the repo
git clone --depth 1 https://github.com/ogrodev/fsociety

Made for: Claude Code, Codex.

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 web-assessment

README.md
[![agentmods](https://agentmods.dev/badge/skills/ogrodev/fsociety/web-assessment.svg)](https://agentmods.dev/skills/ogrodev/fsociety/web-assessment)
Your own site
<a href="https://agentmods.dev/skills/ogrodev/fsociety/web-assessment"><img src="https://agentmods.dev/badge/skills/ogrodev/fsociety/web-assessment.svg" alt="Measured on agentmods" height="20"></a>
Per session 557 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 4,104 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 $0.00557 $0.04104
Opus 5 $0.00279 $0.02052
Sonnet 5 $0.00111 $0.00821
Haiku 4.5 $0.00056 $0.00410

Measured 3d ago against content hash 9b6e89244c0a, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

web-assessment 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.

elliot/skills/web-assessment/SKILL.md · 314 lines

How it starts

The opening of the file, as written. The whole thing — 314 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Web Vulnerability Assessment

Systematic identification and exploitation of web application vulnerabilities. This skill provides structured workflows for every major web vulnerability class, routing you to the correct Hexstrike MCP tools and Kali tooling with proper parameters. Stop guessing at payloads and tool flags -- use the right tool for the right vuln class.

Why Structured Web Assessment Matters

Web applications are the primary attack surface in most engagements. A single SQLi grants database access. An SSRF leaks cloud credentials. An SSTI yields RCE. Structured testing ensures you cover every class systematically instead of ad-hoc fuzzing. Every finding feeds the findings-tracker and chain-detector for automatic exploit chain discovery.

Triage and Prioritization

Before testing anything, determine what you are dealing with. Target type dictates testing priority.

Priority Matrix by Target Type

Target Type Test First Test Second Test Third
PHP app SQLi, LFI/RFI, SSTI (Twig), RCE, file upload XSS, IDOR, auth bypass SSRF, XXE
Java/Spring SQLi, SSTI (Freemarker/Velocity), XXE, deserialization SSRF, IDOR, auth bypass XSS, NoSQLi
Node.js/Express NoSQLi, SSTI (Pug/EJS), prototype pollution, RCE SSRF, IDOR, auth bypass XSS, SQLi
Python/Django/Flask SSTI (Jinja2), SQLi, RCE, SSRF IDOR, auth bypass XSS, XXE
Ruby on Rails SQLi, SSTI (ERB), deserialization, mass assignment SSRF, IDOR, auth bypass XSS, XXE
API-only (REST) IDOR/BOLA, auth bypass, SQLi/NoSQLi, mass assignment SSRF, rate limit bypass injection via headers
API-only (GraphQL) Introspection, query depth abuse, batching attacks IDOR, auth bypass, injection DoS via nested queries
WordPress See waf-bypass + wordpress-hacking skills SQLi via plugins, file upload XSS, SSRF
Cloud-hosted SSRF (IMDS), config leaks, auth bypass SQLi/NoSQLi, IDOR RCE, XSS

Read the full file on GitHub · 314 lines

Files

What ships with it

9 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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 · 314 lines · 557 tokens per session scan A 9b6e89244c0a

Subscribe to this mod's changes

web-assessment is a skill published in the GitHub repository ogrodev/fsociety (20 stars, last pushed 5mo ago), licensed MIT. It adds 557 tokens to every session and 4,104 once invoked, about $0.0028 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 2026-08-30.

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