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Updated today

by hashgraph-online

hol-guard

Open-source antivirus and firewall for AI agents: block risky tools, secret access, prompt injection, malicious packages, MCP servers, plugins, and skills at runtime.

  • Active — Updated in the last 14 days
  • Multi-agent — Targets three or more agents
Works with
  • Claude
  • Cursor
  • Gemini
  • OpenCode
View on GitHub (opens in a new tab)

1.1k GitHub stars (1,069)

+285 in 30 days

Stars gained per day · daily snapshots since Sep 30
Stars gained per day, Sep 30 to Nov 5: +388 in total; the busiest day was Oct 4 with +30 stars.Oct 1: +2 starsOct 2: +8 starsOct 3: +22 starsOct 4: +30 starsOct 5: +23 starsOct 6: +18 starsOct 7: +10 starsOct 8: +17 starsOct 9: +16 starsOct 10: +10 starsOct 11: +7 starsOct 12: +7 starsOct 13: +11 starsOct 14: +19 starsOct 15: +15 starsOct 16: +11 starsOct 17: +19 starsOct 18: 0 starsOct 19: +7 starsOct 20: +7 starsOct 21: +19 starsOct 22: +4 starsOct 23: +8 starsOct 24: +3 starsOct 25: +11 starsOct 26: +12 starsOct 27: +3 starsOct 28: +2 starsOct 29: +9 starsOct 30: +19 starsOct 31: +6 starsNov 1: +6 starsNov 2: +7 starsNov 3: +7 starsNov 4: +5 starsNov 5: +8 stars
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  • 14 skills (14 skills found in its SKILL.md files)
  • 242 forks (242 forks)
  • Today last update (Last updated today)

Install

Skills CLI

npx skills add hashgraph-online/hol-guard

Asks which skills and agents to install. Just one: npx skills add hashgraph-online/hol-guard --skill hol-guard-protection — add -g for every project.

Claude Code

git clone https://github.com/hashgraph-online/hol-guardcp -r "hol-guard/docs/guard" ~/.claude/skills/

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

Plugin

/plugin marketplace add hashgraph-online/hol-guard

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.