web-pentest

web-pentest is a skill for Claude Code, Codex from aivrar/portable-hermes-agent. It costs 17 tokens per session (3,232 once invoked), scanned B, a copy of web-pentest, MIT.

An authorised workflow for testing web applications for security weaknesses. It requires written permission, a defined target list, and reproducible evidence before reporting a finding.

In plain words
What is it for?
Use it to perform web reconnaissance, test allowed applications, reproduce exploits, collect evidence, and produce a security report.
Why use it?
It keeps penetration testing within the approved scope and helps separate real vulnerabilities from blocked or misleading test results. A penetration test is a controlled attempt to find and prove security flaws.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: mentions subagents.

Good fit Use it to perform web reconnaissance, test allowed applications, reproduce exploits, collect evidence, and produce a security report.

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Install with agentmods
npx agentmods add skills/aivrar/portable-hermes-agent/web-pentest
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.

Any agent
npx skills add aivrar/portable-hermes-agent --skill web-pentest
Clone the repo
git clone --depth 1 https://github.com/aivrar/portable-hermes-agent

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-pentest

README.md
[![agentmods](https://agentmods.dev/badge/skills/aivrar/portable-hermes-agent/web-pentest/github.svg)](https://agentmods.dev/skills/aivrar/portable-hermes-agent/web-pentest)
Your own site
<a href="https://agentmods.dev/skills/aivrar/portable-hermes-agent/web-pentest"><img src="https://agentmods.dev/badge/skills/aivrar/portable-hermes-agent/web-pentest/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 web-pentest

Your own site · 80×15
<a href="https://agentmods.dev/skills/aivrar/portable-hermes-agent/web-pentest"><img src="https://agentmods.dev/badge/skills/aivrar/portable-hermes-agent/web-pentest.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 17 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,232 The whole file, excluding the scripts and references it only reads on demand.
Security scan B 3 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin 100% copy Near-identical to another mod 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 $0.00017 $0.03232
Opus 5 $0.00009 $0.01616
Sonnet 5 $0.00003 $0.00646
Haiku 4.5 $0.00002 $0.00323

Measured 6d ago against content hash 0e2e199e97fe, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade B, and why

web-pentest scanned grade B with 3 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 6d ago.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/recon-scan.sh), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

Cloud metadata endpointmediumServer-side request forgery

One request to 169.254.169.254 can return temporary IAM credentials.

4. **Cloud metadata is off by default.** Do not probe `169.254.169.254`,

Downgraded: this mod is about security review, or the phrase is quoted, so it is likely naming the pattern rather than instructing it.

Makes network callslowCapability

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

active scanning. Reading public pages with `curl` is fine; sending

Runs shell commandslowCapability

Expected in a hook, worth knowing in a rule or an instructions file.

2. **Inventory sinks** — every `execute(`, `os.system(`, `eval(`,
Origin

This is a copy

100% identical to web-pentest — 0 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

optional-skills/security/web-pentest/SKILL.md · 336 lines

How it starts

The opening of the file, as written. The whole thing — 336 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Web Application Penetration Testing

A phased pentesting workflow for running web applications. Adapted from Shannon's pipeline (Keygraph, AGPL — concepts only, no code borrowed). Built around three rules:

  1. No exploit, no report — every finding requires reproducible evidence.
  2. Bounded scope — every active request goes against a target the operator pre-declared. Off-scope hosts are refused.
  3. Bypass exhaustion before false-positive dismissal — a "blocked" payload is not a clean bill of health until you've tried the bypass set.

⚠️ Hard Guardrails — Read Before Every Engagement

Violating any of these invalidates the engagement and may be illegal.

  1. Authorization gate. Before the first active scan in a session, you MUST confirm with the user, in writing, that they own or have written authorization to test the target. Record the acknowledgement in engagement/authorization.md (see template). No acknowledgement → no active scanning. Reading public pages with curl is fine; sending payloads is not.

  2. Scope allowlist. Maintain engagement/scope.txt — one hostname or CIDR per line. Every nmap, curl, whatweb, browser navigation, or payload-bearing request MUST be against an entry in scope. If a target redirects you off-scope (3xx to a different host, a link in HTML), STOP and confirm with the user before following.

  3. No production systems without paper. If the user hasn't told you "yes, prod is in scope and I have written sign-off," assume not. Default targets are staging, local docker, dedicated test instances.

  4. Cloud metadata is off by default. Do not probe 169.254.169.254, metadata.google.internal, 100.100.100.200, [fd00:ec2::254], or equivalent unless the engagement explicitly includes SSRF-to-metadata as a goal AND the target is one you control. The agent's browser tool can reach these from inside your own infrastructure — don't.

  5. Destructive payloads need approval. SQLi payloads that DROP/DELETE, filesystem-write SSTI, command injection with rm/shutdown/mkfs, anything that mutates beyond a single test row → ASK FIRST. The approval.py system catches some; don't rely on it alone.

Read the full file on GitHub · 336 lines

Files

What ships with it

8 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. 6d ago First seen · 336 lines · 17 tokens per session scan B 0e2e199e97fe

Subscribe to this mod's changes

web-pentest is a skill published in the GitHub repository aivrar/portable-hermes-agent (217 stars, last pushed yesterday), licensed MIT. It adds 17 tokens to every session and 3,232 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it B with 3 findings (cloud metadata endpoint, makes network calls, runs shell commands). It is 100% identical to web-pentest, differing in 0 lines, and is treated as a copy.

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