The AGPL Open Commons manifesto.

decant-core is licensed under the GNU Affero General Public License v3.0 (AGPL-3.0-only). That choice is not incidental — it is a product decision.

Parser infrastructure belongs in a shared commons

AI platforms change constantly. Every time ChatGPT redecorates a message or Claude changes how artifacts render, somebody has to re-learn the DOM. If each exporter maintains its own private parser stack, a platform update means the same broken logic gets re-debugged dozens of times — and the fixes disappear forever.

decant-core exists to be the opposite: a shared copyleft commons where improvements stay available to the ecosystem instead of being siloed into proprietary forks.

What AGPL means for you

• Open-source projects (FOSS Exception) — You are welcome to link, import, or bundle decant-core into any project distributed under an OSI-approved open source license (such as MPL-2.0, MIT, Apache-2.0, or BSD) without requiring your project to adopt AGPLv3.
• Running a modified version as a network service — If your modified version supports remote interaction through a computer network, you must prominently offer all users interacting with it remotely an opportunity to receive the Corresponding Source of your modified version at no charge. This is the clause that keeps parser fixes available to the commons even behind a server.
• Proprietary, closed-source, or commercial use — If your product cannot comply with AGPLv3, commercial licenses are available. Contact office@covai.org for licensing terms.

Where to see the full terms

The complete text lives in LICENSE. Our natural community is open-source extensions, exporters, archival and research tools, and self-hosted applications — projects that can contribute fixes back to the commons.