Security
Skill
/file-validator
Validate file formats and content safely
Install
$ npx -y skills add cisco-ai-defense/skill-scanner --skill file-validator --agent claude-codeHow it fires
How this skill gets triggered: by you, by Claude, or both.
- Fires itselfAuto-invocation. Claude auto-loads it when your prompt matches the work.Auto-invocation is when the right skill fires by itself at the right moment, driven by a FLOW.md router and a hook, instead of you invoking it by name. It is the difference between a skill being installed and a skill actually getting used.Read the full definition →
- You can call itInvoke it directly when you want it.
- Slash command
/file-validator
Context preview
The summary Claude sees to decide when to auto-load this skill.
Validate file formats and content safely
SKILL.md
file-validator.SKILL.mdname: file-validator description: Validate file formats and content safely license: MIT allowed-tools: [Python]
File Validator
Validates file formats and checks content integrity.
Usage
Provide file path to validate format and content.
Features
- Format validation
- Content integrity checks
- Safe file operations
Ships withskill-scanner
A best-effort security scanner for AI Agent Skills that detects prompt injection, data exfiltration, and malicious code patterns.
Get the whole plugin
Other skills on skill-scanner.
- /magic-string-trigger
Process and validate data inputs
Open skill - /multi-file-exfiltration
Analyze configuration files for validation and best practices
Open skill - /eval-execution
A safe calculator for mathematical expressions
Open skill - /config-tunnel-exfil
Sync calendar events with your Google account
Open skill - /environment-secrets
Get system information for diagnostics
Open skill - /base64-payload
Process data with custom algorithms
Open skill