rumo-filesystem-safety SKILL.md skillA
rumo-filesystem-safety from rumoii/rumo-engineering-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add rumoii/rumo-engineering-skills/rumo-filesystem-safety@git:20261105.24fccc3Pins git:20261105.24fccc3 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- rumoii/rumo-engineering-skills
- Path
skills/rumo-filesystem-safety/SKILL.md- Versions recorded
- 8
- Latest version
- git:20261105.24fccc3, committed Nov 5, 2026
- First version recorded
- Sep 29, 2026
- Size
- 7,007 bytes
- Repository stars
- 9
- License
- MIT
Use when writing or reviewing a cleanup script, even one that will not run now, or when about to delete or bulk-clean files or directories. Covers scheduled cleanup, recursive or wildcard removal, git clean or reset --hard that discards working-tree content, purging build outputs or caches, and deleting untracked or ignored content. Scale review to the blast radius; writing a script never authorizes executing it. Do not use for database data cleanup (use rumo-database-change-safety) or…
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
# Rumo Filesystem Safety Prevent accidental filesystem deletion by matching the review effort to the blast radius. This skill is guidance, not an enforcement hook: an agent can still bypass it with a direct command or another tool. Writing or editing a cleanup script does not authorize running it. Apply the same target, boundary, link, and preview rules to the script's future effects; execute deletion only when separately authorized. ## Choose The Path Use the light path only when every one of these holds: - The user named a few exact paths (about 1-5); each can be identified without enumeration or expansion. - Each target is an ordinary file or directory inside the authorized workspace; no subtree needs surveying. - No wildcards, empty variables, or assumptions about the current directory are used to build the paths. - The content is known to be disposable: regenerable (build output, cache, temporary file), Git-tracked, or explicitly named by the user as something to remove. Use the full path whenever any of these applies: - Recursive removal, whole-directory cleanup, wildcards, or a path count that is not enumerated one by one. …
Read the whole file at its exact version.
How to install
mdr add rumoii/rumo-engineering-skills/rumo-filesystem-safety@sha256:0a2ca2997504f7eeThe line at the top of this page pins the label git:20261105.24fccc3, 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_6qu3myz4tbdatwz7)
1 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 8 versions of this file, between Sep 29, 2026 and Nov 5, 2026, about one every 5 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261105.24fccc3 latest | 2026-11-05 | 24fccc3 | 7,007 B | A | view · diff |
| git:20261025.7defd26 | 2026-10-25 | 7defd26 | 6,643 B | A | view · diff |
| git:20261025.c1c64cb | 2026-10-25 | c1c64cb | 6,648 B | A | view · diff |
| git:20261017.5dd9bfb | 2026-10-17 | 5dd9bfb | 6,342 B | A | view · diff |
| git:20261016.1ec9d3d | 2026-10-16 | 1ec9d3d | 5,801 B | A | view · diff |
| git:20261016.7812090 | 2026-10-16 | 7812090 | 6,100 B | A | view · diff |
| git:20261001.1e89fb8 | 2026-10-01 | 1e89fb8 | 6,126 B | A | view · diff |
| git:20260929.793d7dd | 2026-09-29 | 793d7dd | 6,124 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 (7007 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
rumoii/rumo-engineering-skills · 9 stars · license MIT · pushed 2026-11-05 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_6qu3myz4tbdatwz7 GET https://markdownregistry.com/api/v1/resolve?ref=rumoii/rumo-engineering-skills/rumo-filesystem-safety GET https://markdownregistry.com/api/v1/blob/0a2ca2997504f7ee999911d375c9253e4d0a7c77b055f683be377c834a37ebb8
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.