Traces were written as facts. A single Praxis action wrote several of
them, so machine-rate rows crowded out the bounded fact readers that
humans and evaluation consume. The habit profile window of 2000 facts
and the memeval snapshot both filled with call records instead of what
Maven learned about the owner. Traces now go to ecosystem_traces, with
correlation, causation, duration and HTTP status as columns, pruned to
the most recent 5000. The new reader is exposed over IPC and rendered
as the Calls card on the ecosystem page, so it is a table someone
actually looks at.
Found in review of #84.
Every Nexus and Praxis request now carries the contract version, an
X-Requested-By identifying Maven, a correlation ID (generated per request
when the call is not part of a traced action), and a bearer token when
one is configured. Nexus/Praxis/Hexis config blocks grew an optional
token field, env-expandable so the secret stays out of the committed
config; the vendored hexis client predates bearer auth, so a configured
Hexis token logs a loud warning instead of pretending to authenticate.
Client failures are now a typed *ecosystemError carrying service,
operation and HTTP status, classifying unauthorized, contract-mismatch
and unreachable without matching on message text.
Trace records are written for resolution, discovery, confirmation and
execution — on failure as well as success — with status, duration,
correlation and causation ids, HTTP status and failure class, and the
utterance redacted to its length. Traces were never actually persisted
before: both trace writers used fact kind "system", which the store's
CHECK constraint rejects, and the error was discarded.
kami