fluid-core/internal/observation
tegwick 0ac35892a5 Add pressure classifier and pressure registry
FLUID-WP-0005 T05-T06. The classifier is deterministic: its output is
what a hypothesis will later cite as its observation, and a first
implementation that reached for a model could not be audited.

Two mappings are deliberate. An authorization failure is not pressure --
the interface working as designed is not a defect, and classifying it as
one would send the Daimon after a change that must not happen. Backend
failures and timeouts are reported at any rate, while consumer-side
errors must be a meaningful share of traffic first, since a handful says
more about one confused client than about the interface.

Pressure ids are derived from a finding fingerprint rather than
allocated, which makes ingest idempotent: re-analysing a window updates
one record instead of minting another. first_seen is never overwritten,
because how long the interface has had a problem is the evidence that
makes an old pressure worth prioritizing. A dismissed pressure is not
silently reopened, or the operator's decision would mean nothing.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_014KmVxhJ35tCo7rE7UnLwWu

Assistant: claude-code
Assistant-Model: opus
Assistant-Process: 1116572@bnt-lap001
Assistant-Session: 8ba9bb93-a72a-4883-b189-2499cce5c400
2026-09-04 03:11:49 +02:00
..
classify.go Add pressure classifier and pressure registry 2026-09-04 03:11:49 +02:00
cohort.go Add redaction filter, cohort engine and topology analyzer 2026-09-04 03:08:05 +02:00
pressure_test.go Add pressure classifier and pressure registry 2026-09-04 03:11:49 +02:00
redact.go Add redaction filter, cohort engine and topology analyzer 2026-09-04 03:08:05 +02:00
redact_test.go Add redaction filter, cohort engine and topology analyzer 2026-09-04 03:08:05 +02:00
registry.go Add pressure classifier and pressure registry 2026-09-04 03:11:49 +02:00
topology.go Add redaction filter, cohort engine and topology analyzer 2026-09-04 03:08:05 +02:00
topology_test.go Add redaction filter, cohort engine and topology analyzer 2026-09-04 03:08:05 +02:00