One declaration does three jobs: renders the panel, carries the defaults, names
the values that come back. A module writes no DOM and reads no DOM.
Validation refuses rather than repairs -- unknown type, a renderer its type does
not have, a label that is not text, a default outside its own bounds, a when
naming a key the module never declared. A module that is wrong does not get a
best-effort panel; it does not load, and says why once.
Ordering is by declared relation and stage, never priority numbers, and a cycle
drops only the modules in it. Compatibility is by trait, never model name.
The shell hands a module { composer, values, on, shell } and nothing else: no
node, no document, no kit internals. It cannot style anything because it is
never given anything that could.
catalogue/hide.html puts one good module and five broken ones through the real
shell and shows the result: one panel, five absent, no placeholders. The lint
fixtures make the scanner prove it catches each rule, so a clean scan means
something.
First slice: modules/system/appearance. Two settings, an optional ui.js, and
clicking Light actually turns the app light.
register/zlayer/anchor/motion/density are pure cores over plain data, so most of
the suite runs with no DOM at all; jsdom covers only what is genuinely DOM.
100 tests, zero elements.
These five are why v4 had 11 hand-built modals and 7 hand-built popovers: there
was nothing shared to reuse. register makes an element exist only because a file
defined it; portal gives every overlay one stacking parent; zlayer owns the only
z-index in the app; dismiss keeps one stack so Escape pops the top and not the
modal underneath; anchor measures, flips and clamps once.
Three bugs the tests found: unmount() called removeChild on null when no portal
existed yet, focusables() checked aria-hidden on the element instead of its
ancestors so a hidden subtree stayed tab-reachable, and the density ratios v4
hand-tuned are now derived from the gap they were meant to allow for.
Static serving routes through a pure resolve(), so the extension allowlist and
the traversal guard are tested without aiohttp. modules/ serves .js only: a
module cannot ship a stylesheet even if one is written.
digital-garbage