The Coach snapshot attached its labs block regardless of the module, a
decision from before Labs could be switched off, while the snapshot's own
prelude says a disabled domain never reaches the model. With Labs off, the
Coach prompt, its get_labs tool, the daily briefing's flagged-marker block,
the biomarker status note, the reaction line to a new panel and the MCP
lab_trend_brief prompt all still read lab values for a model.
Each of those reads now asks the labs module first and reads nothing when it
is off: the Coach tool answers module_disabled, the briefing omits the
block, the status note neither writes nor serves text, the reaction line
gets no value, and the MCP prompt refuses like get_labs and the doctor-visit
prompt already did. The data routes stay as they are. A structural guard
holds every lab-table reader under the model-input paths to the gate or to
a listed reason its rows never reach a model.
Marc-André Bombeck
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