Sovereignty checker

A license-first estimate of how revocable a project's future is, with explicit confidence and caveats.

This tool detects common licenses (SPDX when possible), maps them to a rough sovereignty tier, and lists what’s still unknown (governance, CLA, SaaS-only capture).

Mode: Offline supported
Scope: License layer (v1)
Tracking: None

Context

This checker is based on the Layered Sovereignty Model.

Read the explanation →

Tip: for the most reliable result, paste the full LICENSE text.

Check a project

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Network calls off/on

Human verification

Required for GitHub lookups

Model (honest v1)

License is only part of the sovereignty story. This checker returns a license-based tier plus a “next questions” list to refine governance and operational capture.

Mapping (starting point): strong copyleft → A/B-ish • weak copyleft → B/C-ish • permissive → C • source-available/restricted → D • proprietary/no license → E.