The eureka-state binary serves whoami, admit, view and query over stdio (rmcp
2.2.0), each one HuginnClient call. EUREKA_INSTANCE and HUGINN_ENDPOINT are
process configuration: the server fills in the instance and provenance.tool, so
input can name neither. Bad configuration never stops startup; whoami reports
it and every other tool refuses with the typed body. A mind's refusal is a
normal result; Unavailable, Rejected and Misconfigured are results with
isError. The query input schema bundles CultLib's selection schema into $defs
(vendored; a test pins it to the cultnet-rs revision).
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
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