Units

Declarative behaviours — clocks, counters, tickers, formatters, watch rules and data feeds — that write to the store.

Where a unit runs, and what it is allowed to write.

Property	Values	Meaning
runtime	client · server	Where the unit executes. Anything touching a secret must be server.
enabled	true · false	A disabled unit keeps its config but does not run.
status	ok · degraded · disabled	The dot on the row. Degraded means it is running but something is wrong — a failing poll, a missing input.
writes	paths	Declared, not inferred. Re-derived every time the config changes.

The unit report

Issue	Means
schema	The unit does not round-trip through validation.
expr	An expression references an undeclared identifier or a function that is not whitelisted.
multi-writer	Two or more units write the same path; the message names them.
self-accumulate	A formatter or watch rule reads its own output — data:: and poller:: inputs are resolved first. The unit is held and never runs.
overlapping-writes	Write paths nest inside each other (a clock's zero path inside its display, or one unit writing score while another writes score.home). A unit whose own paths nest is held and never runs.
reserved-path	A unit writes under vars, to a read-only feed, or to a whole spreadsheet/column rather than a single sheet cell. Use a Variables operation for vars; write page data or one sheet cell for unit outputs.