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Geiger Gauge

Know what your AI tools can reach.

Your AI setup can do a lot. Geiger Gauge helps you understand what is installed, what it can access, and what deserves a closer look. Get clear next steps, with the evidence one click away.

  • Claude Code & Codex
  • Open source · MIT
YOUR AI SETUP, EXPLAINEDSynthetic example
Example Geiger Gauge report with review priorities and practical next steps
A report you can actually use. Explore the example

Less guesswork. A clearer next step.

See what can reach what.

Understand which tools can run code, access files, use credentials, or connect to the network. Geiger collects the configuration; the skill explains it.

Know where it came from.

Trace tools to their source repositories using public metadata. Uncertain matches and unidentified local scripts are clearly marked.

Start with what matters.

Get a short, prioritized list of things to review, with a concrete next step for each tool. Expand the evidence when you need the details.

Every report includes expandable evidence, source links, and the raw scan JSON. The HTML report works offline, with its fonts and branding built in.

Add it to the assistant
you already use.

Install the skill once, then ask for a review in plain language.

Before your first scan

You’ll need Node.js 18+ and npx. Already have a Geiger JSON report? The skill can use it directly.

  1. Get the project files.

    Download or clone the repository. Keep SKILL.md, assets/, scripts/, and references/ together in a folder named geiger-gauge.

    Get Geiger Gauge on GitHub
  2. Put it in your skills folder.

    Claude Code~/.claude/skills/geiger-gauge/
    Codex~/.agents/skills/geiger-gauge/

    For one project only, use its .claude/skills/ or .agents/skills/ folder instead. Reload your assistant if needed.

  3. Ask what needs your attention.

    Use geiger-gauge to check my AI tools and tell me what needs my attention.

    Your assistant runs the scan, explains the findings, and opens a local HTML report with the next steps.

Know what you’re getting.

Does it change my setup?

No. Geiger Gauge reports and recommends. It does not remove tools, edit your configuration, or rotate credentials. You decide which changes to make.

What does a finding mean?

A finding describes a tool’s configured capabilities. It is not proof that the tool misused its access, and a clean report is not a security certification. The report explains the scan’s scope, gaps, and uncertainty.

Where does my data go?

The report files stay local and work offline. Your assistant processes the findings in its normal conversation context, and source lookups use public metadata online. A new scan may download Geiger through npx.

How is this related to Geiger?

Geiger by Atomburst is the scan engine. Geiger Gauge is an Ultra.dev skill that interprets those results, checks source links, and creates the readable report. The skill’s tested scanner version is geiger-scan@0.3.0.