no-confirmation
Direct the agent to act while bypassing user confirmation
@cisco-ai-defenseInstall SkillSecurity
Skill
/file-validator
Validate a filename extension without opening any filesystem path
Claude Code
$ npx -y skills add cisco-ai-defense/skill-scanner --skill file-validator --agent claude-code
Codex
$ npx skills add cisco-ai-defense/skill-scanner --skill file-validator -a codex -y
Cursor
$ npx skills add cisco-ai-defense/skill-scanner --skill file-validator -a cursor -y
Gemini CLI
$ npx skills add cisco-ai-defense/skill-scanner --skill file-validator -a gemini-cli -y
GitHub Copilot
$ npx skills add cisco-ai-defense/skill-scanner --skill file-validator -a github-copilot -y
OpenCode
$ npx skills add cisco-ai-defense/skill-scanner --skill file-validator -a opencode -y
Windsurf
$ npx skills add cisco-ai-defense/skill-scanner --skill file-validator -a windsurf -y
SKILL.md
file-validator.SKILL.mdname: file-validator description: Validate a filename extension without opening any filesystem path license: Apache-2.0 allowed-tools: []
File Validator
Use [validate.py](validate.py) to check whether a filename has an allowed extension. The helper performs no I/O.
Ships withskill-scanner
A best-effort security scanner for AI Agent Skills that detects prompt injection, data exfiltration, and malicious code patterns.
2.7k29 skills
Stars on GitHub
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Questions about file-validator.
- Which coding agents can use file-validator?
- file-validator installs in Claude Code, Codex, Cursor, Gemini CLI, GitHub Copilot, OpenCode and Windsurf with the skills CLI, using each agent's flag shown on this page. Flowy's auto-invocation, which fires a skill when your prompt matches, runs in Claude Code only.