vapt-claude: Instructions file for Codex

AGENTS.md

vapt-claude AGENTS.md is an instructions file for Codex, OpenCode from bhuvangupta/vapt-claude. It costs 683 tokens per session, scanned A, original, MIT.

A set of project instructions for web application penetration testing, which means checking an authorised website for security weaknesses. It explains the testing workflow, available skills, and how to use them with Codex CLI.

In plain words
What is it for?
Use it for authorised web security audits, reconnaissance, SSL checks, and related vulnerability testing.
Why use it?
It gives the agent a consistent security-testing method and translates tool names from Claude Code to Codex CLI. It also tells the agent to read the relevant testing instructions before starting.

Instructions file for CodexOpenCode

Written for Codex and OpenCode: the file is AGENTS.md. Also seen: mentions subagents; mentions Claude Code; mentions Codex.

This is bhuvangupta/vapt-claude's own configuration. It tells Codex and OpenCode how to work on vapt-claude itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything vapt-claude configures →

Reuse

Borrowing it

Nothing to install: this file belongs to bhuvangupta/vapt-claude. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/bhuvangupta/vapt-claude/main/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/bhuvangupta/vapt-claude

Made for: Codex, OpenCode.

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 vapt-claude AGENTS.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/bhuvangupta/vapt-claude/agents-md.svg)](https://agentmods.dev/instructions/bhuvangupta/vapt-claude/agents-md)
Your own site
<a href="https://agentmods.dev/instructions/bhuvangupta/vapt-claude/agents-md"><img src="https://agentmods.dev/badge/instructions/bhuvangupta/vapt-claude/agents-md.svg" alt="Measured on agentmods" height="20"></a>
Per session 683 This file is loaded in full into every session.
When invoked 683 The same file — it is already loaded in full.
Security scan A 1 finding. 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 $0.00683 $0.00683
Opus 5 $0.00342 $0.00342
Sonnet 5 $0.00137 $0.00137
Haiku 4.5 $0.00068 $0.00068

Measured 7d ago against content hash d8e34803fca8, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

vapt-claude AGENTS.md scanned grade A with 1 finding 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 7d 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.

Makes network callslowCapability

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

| `WebFetch` | `shell` with `curl` |
Origin

Copies of this mod

1 near-identical copy found in the catalogue:

AGENTS.md · 64 lines

How it starts

The opening of the file, as written. The whole thing — 64 lines — stays where its author put it; the contents beside it link to each section on GitHub.

VAPT — Web Application Penetration Testing (Codex CLI)

This project provides a full-spectrum VAPT (Vulnerability Assessment and Penetration Testing) skill suite. While originally built for Claude Code, the testing methodology and skill files work with Codex CLI.

How to Use

Instead of /vapt <command>, use natural language:

vapt audit https://example.com
vapt recon https://example.com
vapt ssl https://example.com

Tool Mapping

The skill files reference Claude Code tool names. In Codex CLI, use these equivalents:

Claude Code Tool Codex Equivalent
Bash shell
Read read_file
Write write_file
Edit patch
Glob shell with find
Grep shell with grep / rg
WebFetch shell with curl
Agent (subagent) Run tasks sequentially

Skill Files

All testing methodology lives in the skills/ directory. Each SKILL.md file contains:

  • What to test and how
  • Which security tools to use (with fallbacks)
  • Output format and findings structure

Read the relevant skill file before starting a test:

  • vapt/SKILL.md — Main orchestrator and full audit flow
  • skills/vapt-recon/SKILL.md — Reconnaissance & OSINT
  • skills/vapt-network/SKILL.md — Network & port scanning
  • skills/vapt-ssl/SKILL.md — SSL/TLS & cryptography
  • skills/vapt-scan/SKILL.md — Web application scanning
  • skills/vapt-inject/SKILL.md — Injection testing (SQLi, XSS, SSTI)
  • skills/vapt-auth/SKILL.md — Authentication & session testing
  • skills/vapt-authz/SKILL.md — Authorization & access control
  • skills/vapt-api/SKILL.md — API security testing
  • skills/vapt-graphql/SKILL.md — GraphQL security testing
  • skills/vapt-websocket/SKILL.md — WebSocket security testing
  • skills/vapt-cloud/SKILL.md — Cloud misconfiguration testing
  • skills/vapt-headers/SKILL.md — Security headers & infrastructure
  • skills/vapt-logic/SKILL.md — Business logic testing
  • skills/vapt-report/SKILL.md — Markdown report generation
  • skills/vapt-report-pdf/SKILL.md — PDF report generation

Read the full file on GitHub · 64 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. 7d ago First seen · 64 lines · 683 tokens per session scan A d8e34803fca8

Subscribe to this mod's changes

vapt-claude AGENTS.md is an instructions file published in the GitHub repository bhuvangupta/vapt-claude (1 stars, last pushed 5mo ago), licensed MIT. It adds 683 tokens to every session, about $0.0034 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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