What it is
Operating system layer for executive-tier cognition. Sits above CSUITE the research instrument and below the operator.
Routes decisions through the right cognitive surface (CLOS for personal, CSUITE for strategic, OpenClaw for delegated execution). The "second brain" if the second brain were a layered OS rather than a note-taking app.
Where it sits
C-SUITE OS is catalogued under Infrastructure & Platforms in the instrument registry. Instruments in this group share a concern and are frequently composed rather than used alone; the related entries below are the nearest ones.
This is a registry entry: a real instrument, documented here, without a public endpoint a stranger can open. Pages carrying source excerpts and measured results are marked as such in the catalog. If you want detail on this one specifically, ask about it directly.