recon-dir-scan

recon-dir-scan is a skill for Claude Code, Codex from crazyMarky/pentest-skills. It costs 52 tokens per session (2,900 once invoked), scanned A, original, Apache-2.0.

A security-testing skill for discovering hidden folders, files, backups, and other paths on an application by trying word-list entries against its URLs.

In plain words
What is it for?
Use it to map application paths and look for exposed directories or files with tools such as ffuf, Gobuster, dirsearch, or feroxbuster.
Why use it?
It helps reveal parts of an application that are not linked from its visible pages. Scanning requires permission from the application owner and a defined testing scope.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: reads .claude/ paths.

Good fit Use it to map application paths and look for exposed directories or files with tools such as ffuf, Gobuster, dirsearch, or feroxbuster.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/crazymarky/pentest-skills/recon-dir-scan
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 crazyMarky/pentest-skills --skill recon-dir-scan
Clone the repo
git clone --depth 1 https://github.com/crazyMarky/pentest-skills

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 recon-dir-scan

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

Your own site · 80×15
<a href="https://agentmods.dev/skills/crazymarky/pentest-skills/recon-dir-scan"><img src="https://agentmods.dev/badge/skills/crazymarky/pentest-skills/recon-dir-scan.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 52 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,900 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: 2 findings, 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 Privilege Escalation · line 148
    Code accesses credential files (SSH keys, AWS credentials, etc.). This could indicate credential theft attempts.
    Fix: Remove references to credential paths. Use environment variables or secrets managers. For docs, use placeholder paths (e.g., /path/to/config). Never load .env or token files in production code paths.
  • high Privilege Escalation · line 149
    Code accesses credential files (SSH keys, AWS credentials, etc.). This could indicate credential theft attempts.
    Fix: Remove references to credential paths. Use environment variables or secrets managers. For docs, use placeholder paths (e.g., /path/to/config). Never load .env or token files in production code paths.
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 $0.00052 $0.02900
Opus 5 $0.00026 $0.01450
Sonnet 5 $0.00010 $0.00580
Haiku 4.5 $0.00005 $0.00290

Measured 10d ago against content hash 27868235e91c, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

recon-dir-scan 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 10d ago.

The scan reads SKILL.md. This mod also ships 4 executable files (scripts/dir_scan_storage.py, scripts/ffuf_results_parser.py, scripts/merge_wordlists.py, …), 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.

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.

recon-dir-scan/SKILL.md · 434 lines

How it starts

The opening of the file, as written. The whole thing — 434 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Directory and File Enumeration

Authorization Warning

IMPORTANT: Directory scanning without proper authorization may be detected as intrusion attempts. Always ensure you have:

  • Written permission from the target application owner
  • Defined scope of authorized testing
  • Legal compliance with local regulations

Prerequisites

Required tools that must be installed on your system:

  • ffuf - go install github.com/ffuf/ffuf@latest
  • gobuster - go install github.com/OJ/gobuster/v3/cmd/gobusterdir@main

Optional tools:

  • feroxbuster - cargo install feroxbuster
  • dirsearch - pip install dirsearch
  • dirb - Package manager installation

Quick Start

Most commonly used commands for directory enumeration:

Fast Directory Scan (ffuf)

ffuf -w wordlist.txt -u https://target.com/FUZZ

Recursive Scan with Status Codes

ffuf -w wordlist.txt -u https://target.com/FUZZ -mc 200,301,302 -recursion

Gobuster Quick Scan

gobuster dir -u https://target.com -w wordlist.txt -t 50

Common Scenarios

Scenario 1: Basic Directory Fuzzing

When you need to discover directories and files:

ffuf -w wordlist.txt -u https://target.com/FUZZ

Parameters:

  • -w wordlist.txt - Wordlist path
  • -u - Target URL with FUZZ keyword
  • -t - Threads (default: 40)

Example:

ffuf -w /usr/share/seclists/Discovery/Web-Content/common.txt -u https://target.com/FUZZ

Scenario 2: Filter by Status Code

When you only want specific HTTP status codes:

ffuf -w wordlist.txt -u https://target.com/FUZZ -mc 200,301,302,403

Status Code Filters:

Code Meaning
200 OK (valid page)
301,302 Redirects
403 Forbidden (directory exists, no access)
401 Authentication required

Negation filter (exclude codes):

ffuf -w wordlist.txt -u https://target.com/FUZZ -mc 200,204,301,302,307,401,403 -mc 404

Scenario 3: Recursive Scanning

Read the full file on GitHub · 434 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. 10d ago First seen · 434 lines · 52 tokens per session scan A 27868235e91c

Subscribe to this mod's changes

recon-dir-scan is a skill published in the GitHub repository crazyMarky/pentest-skills (307 stars, last pushed 3mo ago), licensed Apache-2.0. It adds 52 tokens to every session and 2,900 once invoked, about $0.0003 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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