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Updated 1mo ago

by T-Zevin

SkillGuardrail

Pre-install security scanner and guarded installer for Agent Skills. Quarantine, scan, enforce policy, and verify skills before they reach Codex, Claude Code, Cursor, Gemini CLI, or OpenClaw.

  • Multi-agent — Targets three or more agents
Works with
  • Claude
  • Codex
  • Cursor
  • Gemini
  • OpenCode
View on GitHub (opens in a new tab)

57 GitHub stars (57)

Steady at 57 stars — no new stars in the 16 days since Sep 30.

  • 2 skills (2 skills found in its SKILL.md files)
  • 13 forks (13 forks)
  • 1mo ago last update (Last updated 1mo ago)

Install

Skills CLI

npx skills add T-Zevin/SkillGuardrail

Asks which skills and agents to install. Just one: npx skills add T-Zevin/SkillGuardrail --skill malicious-fixture — add -g for every project.

Claude Code

git clone https://github.com/T-Zevin/SkillGuardrailcp -r "SkillGuardrail/testdata/malicious-skill" ~/.claude/skills/

Copies the malicious-fixture skill into ~/.claude/skills/ for every project (use .claude/skills/ for one project). Repeat for the other skills listed below.

Plugin

/plugin marketplace add T-Zevin/SkillGuardrail

Run inside Claude Code if the repository ships a plugin marketplace, then pick plugins from /plugin.

Skills can run code on your machine — read the SKILL.md first.

What it does

In the author's own words, from each skill's SKILL.md.

Review before you install

A skill is a set of instructions and scripts your agent will follow, and it can run code on your machine. Read the SKILL.md and any scripts first — this listing is not a security review.