aeon-skill-security-scan SKILL.md skillB
aeon-skill-security-scan from bankrbot/skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add bankrbot/skills/aeon-skill-security-scan@git:20260512.a4ba040Pins git:20260512.a4ba040 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- B, 16 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- bankrbot/skills
- Path
aeon-skill-security-scan/SKILL.md- Versions recorded
- 3
- Latest version
- git:20260512.a4ba040, committed May 12, 2026
- First version recorded
- May 12, 2026
- Size
- 3,308 bytes
- Repository stars
- 1,209
- License
- none declared
Audit installed Bankr skills before you run them — scan SKILL.md and companion scripts for shell injection, secret exfiltration, path traversal, prompt-override payloads, destructive commands, and 2026-era obfuscation (zero-width Unicode, bidi override, base64-decode pipes, webhook SSRF hosts). Designed to integrate with Bankr Safety Scores. Silent on no-op runs; surfaces only NEW or RESOLVED findings vs prior scans. Triggers: "audit this skill", "is this skill safe to install…
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
# aeon-skill-security-scan Skills tell agents what to do. A malicious or sloppy skill can shell-inject, exfiltrate secrets, override instructions, or run destructive commands. This skill scans every installed SKILL.md and companion script and surfaces the risks before they execute. ## Scope - `<skills-dir>/*/SKILL.md` — primary. - `<skills-dir>/*/scripts/*.sh` and `*.py` — companion scripts. - `<skills-dir>/*/references/*` — documents loaded at runtime. Default `<skills-dir>` is the current working directory. ## Threat patterns | Category | What it looks like | |---|---| | Shell injection | Unquoted variable expansion, `eval`, backticks, `$(...)` with user data. | | Secret exfiltration | Env vars or file contents piped to outbound HTTP. | | Path traversal | `../..` chains, absolute paths reaching outside the skill dir. | | Prompt override | "Ignore previous instructions", persona swaps, instructions inside fetched content. | | Destructive commands | Recursive deletes rooted at `/` or `~`, device writes. | | Obfuscation | U+200B / U+FEFF / U+202E (Trojan Source), base64-decode-into-shell, SSRF hosts (ngrok, interact.sh, webhook.site, pipedream). | ## Processing …
Read the whole file at its exact version.
How to install
mdr add bankrbot/skills/aeon-skill-security-scan@sha256:fa25e09ae3453f18The line at the top of this page pins the label git:20260512.a4ba040, 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_3v62mwd4n2pqau5w)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 3 versions of this file, all committed on May 12, 2026.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260512.a4ba040 latest | 2026-05-12 | a4ba040 | 3,308 B | B | view · diff |
| git:20260512.2331923 | 2026-05-12 | 2331923 | 6,623 B | B | view · diff |
| git:20260512.9addfe3 | 2026-05-12 | 9addfe3 | 5,912 B | B | view |
Audit of the latest version
- fail: No prompt-injection phrasing (matched: Ignore previous instructions)
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (3308 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 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
Starting a new one? Use a template for SKILL.md on mdpantry, which passes every one of these checks and says what to change in it.
Source
bankrbot/skills · 1,209 stars · license none declared · pushed 2026-11-04 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_3v62mwd4n2pqau5w GET https://markdownregistry.com/api/v1/resolve?ref=bankrbot/skills/aeon-skill-security-scan GET https://markdownregistry.com/api/v1/blob/fa25e09ae3453f183d7503733d66a2cd02d9dc8b81adfcbed19e7e898d6ac506
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.