aegis-file-handling SKILL.md skillA
aegis-file-handling from as-foss/aegis-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add as-foss/aegis-skills/aegis-file-handling@git:20260826.9702747Pins git:20260826.9702747 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- as-foss/aegis-skills
- Path
skills/code/file-handling/SKILL.md- Versions recorded
- 3
- Latest version
- git:20260826.9702747, committed Aug 26, 2026
- First version recorded
- Aug 25, 2026
- Size
- 68,485 bytes
- Repository stars
- 16
- License
- Apache-2.0
Audit playbook module for detecting path traversal, LFI/RFI, unsafe file upload/download/delete, Zip Slip and archive attacks, symlink/TOCTOU races, and storage-key confusion via static taint tracing and authorized reproduction.
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
# File-Handling Checks (FILE) ## Scope & Objectives - Detect every class where attacker-controlled input influences a filesystem path or archive entry name: path traversal (CWE-22/CWE-23), absolute-path injection (CWE-36), external control of file name/path passed to any sink (CWE-73), PHP include/require of remote or wrapper-controlled files (CWE-98), and unrestricted upload of dangerous file types (CWE-434). - Cover these vulnerability families end to end: - **Path traversal** in read, write, download, delete, include, and template-resolution sinks. - **LFI/RFI**: dynamic `include`/`require`/`import`/user-control resolution driven by request data, including PHP stream-wrapper abuse. - **Arbitrary file upload**: extension/MIME/magic/filename validation gaps, landing-directory executability, `.htaccess`/`.config` overwrite, polyglot files, traversal-in-filename. - **Arbitrary file download/read**: export/report/invoice/attachment endpoints mapping IDs or names to paths. - **Arbitrary file deletion** (`unlink`/`File.delete`/`os.Remove`) enabling config-wipe-to-reset chains. …
Read the whole file at its exact version.
How to install
mdr add as-foss/aegis-skills/aegis-file-handling@sha256:b42265a29195c9c1The line at the top of this page pins the label git:20260826.9702747, 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_4n2unz3ozopoum6v)
2 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 3 versions of this file, between Aug 25, 2026 and Aug 26, 2026, more than one a day.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260826.9702747 latest | 2026-08-26 | 9702747 | 68,485 B | A | view · diff |
| git:20260825.85624bc | 2026-08-25 | 85624bc | 68,486 B | A | view · diff |
| git:20260825.244c198 | 2026-08-25 | 244c198 | 67,499 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 (68485 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
as-foss/aegis-skills · 16 stars · license Apache-2.0 · pushed 2026-08-26 · branch master
API
GET https://markdownregistry.com/api/v1/artifacts/art_4n2unz3ozopoum6v GET https://markdownregistry.com/api/v1/resolve?ref=as-foss/aegis-skills/aegis-file-handling GET https://markdownregistry.com/api/v1/blob/b42265a29195c9c1f4b9d67e7f688ee1ea0dfface26c344191a523557a9aa4f4
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.