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Updated 2mo ago

by mturac

promptguard

Offline prompt-contract auditor for Hermes, Claude Code, Codex, OpenCode & OpenClaw. Pre-write guard before agents ship vague code. Zero deps. No model API.

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

76 GitHub stars (76)

Stars gained per day · daily snapshots since Sep 30
Stars gained per day, Sep 30 to Oct 16: −10 in total.Oct 1: 0 starsOct 2: 0 starsOct 3: 0 starsOct 4: 0 starsOct 5: 0 starsOct 6: 0 starsOct 7: 0 starsOct 8: 0 starsOct 9: 0 starsOct 10: −10 starsOct 11: 0 starsOct 12: 0 starsOct 13: 0 starsOct 14: 0 starsOct 15: 0 starsOct 16: 0 stars
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  • 1 skill (1 skills found in its SKILL.md files)
  • 1 forks (1 forks)
  • 2mo ago last update (Last updated 2mo ago)

Install

Skills CLI

npx skills add mturac/promptguard

Asks which agents to install it for. Add -g to install it for every project.

Claude Code

git clone https://github.com/mturac/promptguardcp -r "promptguard/skills/promptguard" ~/.claude/skills/

Copies the promptguard skill into ~/.claude/skills/ for every project (use .claude/skills/ for one project).

Plugin

/plugin marketplace add mturac/promptguard

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.

  • promptguard

    Audit system prompts, agent prompts, router prompts, tool/function-call prompts, and coding-agent instructions as executable contracts. Use before writing or seeding prompts; blocks vague "fix this / write code" tasks missing ownership and verification. Works with Hermes, Claude Code, Codex, OpenCode, OpenClaw.

    skills/promptguard/SKILL.md on GitHub (opens in a new tab)

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.