Open-source antivirus for AI agents: block risky tools, secret access, prompt injection, malicious packages, MCP servers, plugins, and skills at runtime.
Free tool inMCP servers and agent tools
Hol-guard at a glance
Checked 20 Oct 2026Open-source antivirus for AI agents: block risky tools, secret access, prompt injection, malicious packages, MCP servers, plugins, and skills at runtime. Added from the trending feed (owner) on 2026-10-20 with 955 GitHub stars. So far only the licence comes from GitHub; the other facts are unknown until someone checks them.
RepoQuarry. “Hol-guard.” Checked 20 Oct 2026. https://repoquarry.dev/projects/hol-guardWhat it replaces
Nothing people pay for: it’s a free tool, listed because people search for it. Find similar projects in MCP servers and agent tools.
Facts, with sources
Every answer links to where we found it. We read the documentation; we did not install it.
No licence changes since we started watching. Licence watch: follow Hol-guard and we email you if its licence terms change.
Growth and activity in detail
Is it popular, and is anyone still working on it? From GitHub.
2150 pull requests merged in 30 days · 54 issues opened, 46 closed in 30 days
Stars over time
Building historyNot enough history for a 7-day gain.
The chart appears after a few nightly checks.
Where these numbers come from
- Stars, forks, releases: GitHub's public API, fetched every night (last fetch today).
- Star history: counted every night since 21 Oct 2026.
- Commits and people committing: GitHub's repository statistics, counted weekly. Names are never stored.
- Pull requests and issues: counted from GitHub for the last 30 days.
- Stars show popularity, not quality. The facts below are checked separately, by reading the project's own documentation. How we check.