HOL Guard
Local policy checks, approval prompts and action receipts for supported agent tools.
Sources and review
Checked against public documentation on . Suitability guidance is our editorial judgment; this is not a performance benchmark or an endorsement.
Developers evaluating action review and policy controls around supported coding agents.
You need complete prompt-injection prevention or protection across every agent action.
About HOL Guard
HOL Guard is an Apache-2.0-licensed runtime-control tool for supported agent integrations. It evaluates covered actions against configured policy and records decisions; coverage depends on the harness and event surface. A public repository, release and Python package were available during review. Local functionality is separate from optional paid cloud features. No interception, scan or protection guarantee was tested.
HOL Guard is an open-source project written primarily in Python, with 766 stars on GitHub. It was last updated in October 2026.
