NB.006 · Notebook
Canvas Extensions: the architecture and the hard truth
How an Agent Server installs UI bundles and Canvas loads them as same-realm JavaScript: manifest, adapter, registry, lifecycle, and staged-update patterns—plus the security boundary that does not exist, the contracts already drifting, and the work required before this is honestly a platform.
Source: https://enyst.github.io/arch/agent-canvas-extensions.html