pentest

pentest is a skill for Codex from HoangNguyen0403/agent-skills-standard. It costs 37 tokens per session (715 once invoked), scanned A, original, MIT.

A penetration-testing workflow that checks backend, frontend, and mobile applications for security weaknesses using authorized adversarial testing.

In plain words
What is it for?
Use it to assess application targets, trust boundaries, secrets, endpoints, and privileged workflows, then produce a security report with reproducible proof of findings.
Why use it?
It helps uncover exploitable problems and records verified proof, severity scores, and recommended remediation work.

Skill for Codex

Written for Codex: installed under .codex/.

Good fit Use it to assess application targets, trust boundaries, secrets, endpoints, and privileged workflows, then produce a security report with reproducible proof of findings.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/hoangnguyen0403/agent-skills-standard/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 HoangNguyen0403/agent-skills-standard --skill pentest
Clone the repo
git clone --depth 1 https://github.com/HoangNguyen0403/agent-skills-standard

Made for: 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 pentest

README.md
[![agentmods](https://agentmods.dev/badge/skills/hoangnguyen0403/agent-skills-standard/pentest/github.svg)](https://agentmods.dev/skills/hoangnguyen0403/agent-skills-standard/pentest)
Your own site
<a href="https://agentmods.dev/skills/hoangnguyen0403/agent-skills-standard/pentest"><img src="https://agentmods.dev/badge/skills/hoangnguyen0403/agent-skills-standard/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 pentest

Your own site · 80×15
<a href="https://agentmods.dev/skills/hoangnguyen0403/agent-skills-standard/pentest"><img src="https://agentmods.dev/badge/skills/hoangnguyen0403/agent-skills-standard/pentest.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 37 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 715 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. Third-party audits
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 1 finding, up to high

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • high YARA Match · line 3
    YARA rule matched a hack tool or exploit indicator (offensive tools, reconnaissance, privilege escalation, or exploit frameworks).
    Fix: Remove offensive tool references and exploit code. Legitimate agent skills should not contain penetration testing tools, exploit frameworks, or reconnaissance utilities.
How audits are shown
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 $0.00037 $0.00715
Opus 5 $0.00018 $0.00358
Sonnet 5 $0.00007 $0.00143
Haiku 4.5 $0.00004 $0.00072

Measured 9d ago against content hash 02b78aefec1b, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

pentest 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 9d 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.

.codex/skills/pentest/SKILL.md · 66 lines

How it starts

The opening of the file, as written. The whole thing — 66 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Pentest Skill

[!IMPORTANT] PTES-aligned adversarial security audit for backend, frontend, and mobile applications. Produces a CVSS-scored Hacker Report with verified PoCs and phased remediation.

Optional args: slug=, ticket=<id/url>, mode=interactive|autonomous|channel, channel=, auto_continue=true|false, profile=business|hybrid|technical.

Instructions

When the user asks to perform this workflow, execute the following steps:

🕵️‍♂️ Penetration Test (PTES-Aligned)

Goal: Execute a red-team assessment across backend, frontend, and mobile targets with verified PoCs and audit-grade evidence.

Steps

  1. Scope and authorization:

    • Determine mode (whitebox, greybox, blackbox) and targets.
    • Verify explicit authorization; stop if unauthorized.
  2. Intel and threat model:

    • Identify stack, endpoints, parameters, local storage, schemes, and secrets.
    • Use common-security-audit, common-dast-tooling, and architecture docs when available.
    • Map trust boundaries, secrets, external integrations, and privileged workflows before exploit attempts.
  3. Vulnerability analysis:

    • Run scans and delegate: SAST/SCA to specialist-aspm-correlator, dynamic/logic to specialist-logic-hacker, binary/mobile to specialist-mobile-reverser.
    • Rank targets by exposure × sensitivity × auth_coverage.
  4. Exploit verification:

    • No Exploit = No Report. Discard unverified findings.
    • Build reproducible PoCs and record preconditions, payloads, evidence, and blast radius.
  5. Reporting:

    • Write artifacts/security-review.md with assumptions, source provenance, review context, runtime contract, PoCs, blast radius, finding confidence, exploit path, evidence gaps, and handoff notes.
    • Emit artifacts/security-review.dev.md, artifacts/security-review.appsec.md, or artifacts/security-review.exec.md only when leadership, client, or AppSec reporting is in scope.
    • Score from 100: Critical -25 (cap 25), High -15 (cap 40), Medium -8, Low -3.
    • Reuse the existing security-review.md record when pentest follows earlier design or PR security review work.
    • Deliver findings in the standard template below.

Read the full file on GitHub · 66 lines

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. 9d ago First seen · 66 lines · 37 tokens per session scan A 02b78aefec1b

Subscribe to this mod's changes

pentest is a skill published in the GitHub repository HoangNguyen0403/agent-skills-standard (565 stars, last pushed 3d ago), licensed MIT. It adds 37 tokens to every session and 715 once invoked, about $0.0002 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 2026-09-03.

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