Per the 2026-04-29 scope-discipline pause: the wave shipped four
pieces beyond SPEC §3.4 component scope, and one architectural
pattern surfaced (Archon-style multi-pass workflow runner) that's
the observer's natural growth path. Document them as port targets
so the next scrum review has authoritative SPEC components.
§3.5 — Drift quantification (loop 5 of the PRD)
Names the SCORER drift work shipped in be65f85 + the deferred
shapes (PLAYBOOK drift, EMBEDDING drift, AUDIT BASELINE drift).
Acceptance gates G3.5.A–B.
§3.6 — Staffing-side structured filter
Names the metadata-filter MVP shipped in b199093 + the deferred
pre-retrieval SQL gate via queryd. Acceptance gates G3.6.A–C.
§3.7 — Operational rating wiring
Names the bulk playbook-record endpoint shipped in 6392772 + the
deferred UI shim, negative-feedback path, and time-decay.
Acceptance gates G3.7.A–B.
§3.8 — Observer-KB workflow runner (Archon-style multi-pass) —
PORT TARGET, not yet started
Documents the architecture J was working on across the Rust
observer-kb branch (10 commits ahead of main, never merged) and
the local Archon mod (committed 2026-04-29 as 3f2afc8 in
/home/profit/external/Archon, not pushed to coleam00/Archon).
The pattern: multi-pass mode chain (extract → validator →
hallucination → consensus → redteam → pipeline → render) where
each pass is a deterministic measurement. The observer is the
natural home — workflows ARE observation patterns whose every
step is recorded. Five components in dependency order: workflow
definition (YAML), node executor (DAG runner), provenance
recording (ObservedOps), mode catalog (matrix.search,
distillation.score, drift.scorer, llm.chat), HTTP surface
(/v1/observer/workflow/run).
Reference materials on the system (preserved, not lost):
- /home/profit/lakehouse/.archon/workflows/lakehouse-architect-review.yaml
(Rust main, 69919d9) — 3-node Archon-via-Lakehouse proof
- /home/profit/external/Archon dev branch — upstream engine
with local pi/provider.ts mod (3f2afc8) for Lakehouse routing
- Rust observer-kb branch — apps/observer-kb/docs/PRD.md +
Python prototypes proven on real ChatGPT/Claude PDF data
Acceptance gates G3.8.A–D. Estimated effort: L.
PRD updated with "Observer as system resource (clarified
2026-04-29)" section pointing at §3.8 as the architectural growth
path. The bare-bones observerd in bc9ab93 is the substrate; the
workflow runner is what makes it the "objective measurement engine"
the small-model pipeline needs.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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