RMT-first XTend Apps

An architecture path for apps whose shell comes from RMT.

What it covers

An RMT-first application owns its shell, state, and actions in RMT source. HTML provides mount targets and local modules only; imperative host JavaScript remains limited to adapters and real platform services.

Public building blocks

demos/xtendrmt/examples/first-app/source.rmt is the minimal shell.
xtendrmt/rmt-app-runtime.js accepts core records into the runtime.
components/manifest.json supplies locally allowed UI tags.

Recommended workflow

Start with one surface and one state record. Add actions and resources only after the first core snapshot is stable, and keep network, storage, or browser APIs behind an explicit host adapter.

Next steps

XTendRMT overview
RMT Authoring Guide
RMT Linter
RMT Language Server

Verify the shell contract

node scripts/run_xtend_tests.js rmt-first-class-app --json

The gate checks source, registry, and host boundary together. Parser success is insufficient if the shell still needs manual UI creation or a second state owner.