HOL Guard
Apply local approval rules before AI agents take risky actions
Inspect and control AI activity on your Mac

Plango is a security application for people who use AI tools on a Mac. It examines installed agents, MCP servers, and skills, and helps users see which permissions and network connections those tools request. Its local analysis highlights potentially risky behavior so someone can review a tool before letting it work with sensitive files or credentials.
The app includes controls for outbound connections, checks for known vulnerabilities, and an activity record for reviewing what happened. Secrets can be stored in the macOS Keychain instead of scattered across configuration files. Plango runs on Apple Silicon Macs with macOS 15 or later and offers a trial.
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