Geiger – See every AI agent on your machine and what it can touch

Geiger-scan is a read-only, no-install command-line tool that enumerates every AI agent, harness, MCP server, plugin and extension on a machine, reporting each component’s origin and capabilities such as code execution, filesystem or network access, and credential storage. It outputs plain-text, HTML or JSON reports, supports baseline diffing and strict mode to trigger alerts when new executable or secret-holding agents appear, and never transmits data off the host.