path-traversal

path-traversal is a skill for Claude Code, Codex from MingyiSecLab/Mingyi-Atlas. It costs 26 tokens per session (159 once invoked), scanned A, original, Apache-2.0.

A security-testing method for finding directory and archive traversal, where crafted file names escape the folder an application intended to use. Archives are bundles such as ZIP or TAR files.

In plain words
What is it for?
Use it to inspect file paths and archive extraction, test encoded and mixed-separator inputs, and verify path validation and confinement.
Why use it?
It helps detect cases where an attacker can read, write, download, or extract files outside the permitted directory.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it to inspect file paths and archive extraction, test encoded and mixed-separator inputs, and verify path validation and confinement.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/mingyiseclab/mingyi-atlas/path-traversal
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 MingyiSecLab/Mingyi-Atlas --skill path-traversal
Clone the repo
git clone --depth 1 https://github.com/MingyiSecLab/Mingyi-Atlas

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 path-traversal

README.md
[![agentmods](https://agentmods.dev/badge/skills/mingyiseclab/mingyi-atlas/path-traversal/github.svg)](https://agentmods.dev/skills/mingyiseclab/mingyi-atlas/path-traversal)
Your own site
<a href="https://agentmods.dev/skills/mingyiseclab/mingyi-atlas/path-traversal"><img src="https://agentmods.dev/badge/skills/mingyiseclab/mingyi-atlas/path-traversal/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 path-traversal

Your own site · 80×15
<a href="https://agentmods.dev/skills/mingyiseclab/mingyi-atlas/path-traversal"><img src="https://agentmods.dev/badge/skills/mingyiseclab/mingyi-atlas/path-traversal.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 26 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 159 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.
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 $0.00026 $0.00159
Opus 5 $0.00013 $0.00079
Sonnet 5 $0.00005 $0.00032
Haiku 4.5 $0.00003 $0.00016

Measured 10d ago against content hash b6029b4529fe, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

path-traversal 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.

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.

src/skills/standard/analyst/path-traversal/SKILL.md · 23 lines

What it actually says

Path Traversal Playbook

Find sinks

  • open(user_path), send_file(user_path), file download endpoints, archive extraction APIs.

Probe payload classes

  • Relative traversal: ../../../../etc/passwd
  • Encoded traversal: %2e%2e%2f
  • Mixed separators: ..\\..\\windows\\win.ini
  • Archive traversal: entries like ../../app/config.py

Verify controls

  • Canonicalization done before allowlist check.
  • Path confinement to intended root.

Validation

Confirm unauthorized file read/write outside allowed directory with positive and negative controls.

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 · 23 lines · 26 tokens per session scan A b6029b4529fe

Subscribe to this mod's changes

path-traversal is a skill published in the GitHub repository MingyiSecLab/Mingyi-Atlas (11 stars, last pushed 2mo ago), licensed Apache-2.0. It adds 26 tokens to every session and 159 once invoked, about $0.0001 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.