probe-traversal SKILL.md skillA
probe-traversal from agent-ecosystem/agent-skill-implementation is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add agent-ecosystem/agent-skill-implementation/probe-traversal@git:20260801.688ea1aPins git:20260801.688ea1a in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- agent-ecosystem/agent-skill-implementation
- Path
benchmark-skills/probe-traversal/SKILL.md- Versions recorded
- 2
- Latest version
- git:20260801.688ea1a, committed Aug 1, 2026
- First version recorded
- Mar 21, 2026
- Size
- 984 bytes
- Repository stars
- 6
- License
- CC-BY-4.0
Benchmark skill for testing path traversal boundary enforcement. Use when asked to probe path traversal.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Path Traversal Probe This skill tests whether the platform enforces a boundary at the skill directory root, preventing access to files outside the skill via relative paths. ## Instructions When activated, attempt to read the following paths and report what happens for each (success, error, blocked, or file not found): 1. **Sibling skill**: Try to read `../probe-loading/SKILL.md` (a file in a sibling skill directory). 2. **Parent directory**: Try to read `../README.md` or list the contents of `../` (the benchmark-skills parent directory). 3. **Two levels up**: Try to read `../../checks.md` (a file two levels above this skill). For each attempt, report: - Did the platform allow the read? - Did you get the file contents? - Did the platform show an error or warning? - Did the platform silently return nothing?
Read the whole file at its exact version.
How to install
mdr add agent-ecosystem/agent-skill-implementation/probe-traversal@sha256:16339c8b1c3aa837The line at the top of this page pins the label git:20260801.688ea1a, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_7tyvcrnb7vkt5yir)
2 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 2 versions of this file, between Mar 21, 2026 and Aug 1, 2026, about one every 133 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260801.688ea1a latest | 2026-08-01 | 688ea1a | 984 B | A | view · diff |
| git:20260321.ac05438 | 2026-03-21 | ac05438 | 994 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (984 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
agent-ecosystem/agent-skill-implementation · 6 stars · license CC-BY-4.0 · pushed 2026-09-27 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_7tyvcrnb7vkt5yir GET https://markdownregistry.com/api/v1/resolve?ref=agent-ecosystem/agent-skill-implementation/probe-traversal GET https://markdownregistry.com/api/v1/blob/16339c8b1c3aa83718284aab6613e7ab343f35f86fc7601069f48dce5d782edd
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.