Geiger – See every AI agent on your machine and what it can touch
A Geiger counter for AI agents — one read-only command that inventories every agent, MCP server, plugin, and AI extension on a machine - Atomburstofficial/geiger
Geiger – See every AI agent on your machine and what it can touch launched on September 9, 2026 with 49 votes, #682 of 8,094 launches that month and more than 95% of that year's launches.
In plain words
Geiger is a read-only command-line tool that scans a machine to inventory all AI agents, MCP servers, plugins, and AI extensions installed on it. It displays what each component can access in plain language. The tool requires no installation, account, or telemetry and only reads system configurations and directories without writing changes unless specifically requested to output JSON. It's designed for users who want visibility into the AI tools running on their system.
written from the facts on this page · September 2026
From the sources
One read-only command that inventories every AI agent, harness, MCP server, plugin, and AI extension on a machine — and tells you, in plain language, what each one can touch. npx geiger-scan No install. No account. No telemetry. Reads configs and directories, writes nothing (unless you ask for --json yourfile.json ). In August 2026, an open-source agent harness went from zero to 200,000+ GitHub stars in three weeks. Its plugin ecosystem passed 13,000 repositories in the same window. One-click desktop clients appeared the same day it launched. Instagram carousels now teach office workers to install all of it. Every one of those installs is a program that can execute commands, read files, and…from github.com
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