Aeon Skill Security Scan

OrganizationPopular

BankrBot

aeon-skill-security-scan

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", "security scan my skills", "check skill X for injection".

Overview

Publisher	BankrBot
Repository	`skills`
Skill name	`aeon-skill-security-scan`
Stars	1.2K
Forks	622
Bundled files	1
Links	Skill source Repository Homepage

Markdown instructions
A SKILL.md file the model loads on demand, so it only costs tokens when a request actually matches.
Works with any LLM
AI skills are plain Markdown, not provider-specific code, so this works with GPT, Claude, Gemini, Grok, or a local model.
1 bundled files
Scripts, templates, and references the model can read while it works. Files are read-only and never executed.
Open source
Published by BankrBot on GitHub. Read the source before you install it.

Installation

Install the Aeon Skill Security Scan AI skill in TypingMind to use it with any LLM, or drop it into another agent that reads SKILL.md.

Install in TypingMind

TypingMind installs a skill straight from its GitHub folder — it reads SKILL.md, bundles the resource files, and stores the result locally.

Open the app and go to Plugins → Skills.
Choose "Install from GitHub".
Paste the skill folder URL below and confirm.
Enable the skill in any chat where you want it available.

Plugins → Skills → Add skill → From GitHub URL, then paste the folder URL and press Continue.

Install in another agent

Any agent that reads the Agent Skills format can use this skill — copy the folder into that agent's skills directory.

Claude Code — .claude/skills

git clone --depth 1 https://github.com/BankrBot/skills.git /tmp/skills
mkdir -p .claude/skills
cp -r /tmp/skills/aeon-skill-security-scan .claude/skills/aeon-skill-security-scan

Restart Claude Code after copying so it picks up the new skill.

Use it in TypingMind

Enable Aeon Skill Security Scan in any TypingMind chat and the model takes it from there. Its name and description sit in the system prompt, and the moment a request matches, the model loads the full instructions itself — you never invoke it by hand, and it costs no tokens until it is actually used.

The model loads Aeon Skill Security Scan on its own as soon as a request matches it.

Works with any AI model

AI skills are plain Markdown instructions rather than provider-specific code, so Aeon Skill Security Scan is not tied to the model it was written for. Install it once in TypingMind and use it with GPT-5, Claude, Gemini, Grok, DeepSeek, Mistral, Llama, or a local model you run yourself — all on your own API keys.

Loaded only when it is needed
The system prompt carries just the name and description. The instructions are fetched on the first matching request, so an idle skill costs nothing.
Switch models mid-chat
Because the skill is instructions rather than code, changing model does not break it — the next model reads the same SKILL.md.

Skill instructions

This is the SKILL.md content the model loads. Read it before installing — a skill is instructions your model will follow.

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

Pattern scanner produces matches {file, line, pattern, severity}.
Code-fence downgrade — matches inside fenced code blocks drop one tier. Real run: blocks are never downgraded.
Baseline suppression — drop (file, pattern, line) tuples in scan-baseline.yml.
Trusted-publisher filter — entries in trusted-publishers.txt get format-only validation. Opt-in only.
Delta vs scan-state.json — fingerprint by sha256(file + line_content + pattern). Classify NEW / RESOLVED / PERSISTENT.

Per-finding remediation

Pattern	Fix
`eval` / backticks / `$(...)` with variable	Quote the variable; replace `eval` with a function.
`curl` with secret in URL	Move secret into prefetch script; never interpolate into shell.
Path traversal	Allow-list validation; reject absolute paths.
Prompt override phrasing	Documentation → baseline suppression; payload → delete the skill.
Recursive delete rooted at `/` or `~`	Scope to the skill's own working directory.
Obfuscation	Delete unless documented and reviewed.

Output

Verdict CLEAN / ATTENTION / DEGRADED. Needs-attention section per NEW HIGH with one-line remediation. Resolved-since-last-scan section. Per-skill PASS / WARN / FAIL.

Written only when NEW, RESOLVED, or any current HIGH findings.

Rules

Never auto-deletes a baseline suppression.
Never edits the pattern library from inside the skill.
Never notifies on a pure no-op week.
Read-only scanning.

Bundled files

The model reads these on demand while the skill is loaded. They are exposed as readable files and are never executed.

catalog.json1 KB

Frequently asked questions

What does the Aeon Skill Security Scan AI skill do?

Why use Aeon Skill Security Scan on TypingMind?

Because you install it once and use it with any model. Aeon Skill Security Scan is plain Markdown rather than provider-specific code, so the same skill runs on GPT-5, Claude, Gemini, Grok, or a local model — and you can switch model mid-chat without it breaking. TypingMind runs on your own API keys, so you pay providers directly instead of a per-seat subscription, and your skills and chats stay in your own storage.

How do I install Aeon Skill Security Scan in TypingMind?

Open Plugins → Skills → Install from GitHub in TypingMind and paste https://github.com/BankrBot/skills/tree/main/aeon-skill-security-scan. TypingMind reads its SKILL.md and bundles its files and installs it as a skill you can enable per chat.

Which AI models can use Aeon Skill Security Scan?

Any model you connect in TypingMind. AI skills are plain Markdown instructions rather than provider-specific code, so GPT, Claude, Gemini, Grok, and local models can all load this skill when a request matches it.

How many AI models can I use with Aeon Skill Security Scan?

As many as you like. As long as a model supports skills, you can use Aeon Skill Security Scan with it — GPT, Claude, Gemini, Grok, DeepSeek, Mistral, Llama and more — all on TypingMind with your own API keys.

Is the Aeon Skill Security Scan AI skill free?

It is published on GitHub by BankrBot. Check the repository for licensing terms. You only pay your own AI provider for the tokens you use.

What are AI skills?

An AI skill is a reusable instruction bundle that teaches an AI model how to do one specific task. It follows the open Agent Skills format: a SKILL.md file with a name and description, plus any scripts, templates or reference files the model may need. The model reads the instructions only when your request matches the skill, so an installed skill costs nothing until it is used.

How are AI skills different from plugins or MCP servers?

A plugin or MCP server gives a model new tools to call — code that runs somewhere and returns a result. An AI skill gives the model knowledge and process instead: how to approach a task, which steps to follow, what good output looks like. Skills are plain Markdown, so they need no server, no API key and no runtime, and they work with any model.

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Overview

Installation

Install in TypingMind

Install in another agent

Use it in TypingMind

Works with any AI model

Skill instructions

aeon-skill-security-scan

Scope

Threat patterns

Processing

Per-finding remediation

Output

Rules

Bundled files

Frequently asked questions

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