> For the complete documentation index, see [llms.txt](https://help.cubelet.ai/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.cubelet.ai/platform-and-integration/architecture.md).

# Architecture

*How cubelet.ai is put together — the federated MCP fleet, the dual-write Catalog, and the governance model behind every shipped Cubelet.*

* **Overview** — the federated MCP architecture, the Catalog's dual-write registry, R2 as primary store, and the content production pipeline.
* **Data model & taxonomy** — the structural shape of Cubelets, Cases, competencies, and framework element IDs.
* **Governance & provenance** — the quality gate, content licensing hierarchy, and the provenance story from content to credentials.