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ruv
190 lines
9.4 KiB
Markdown
190 lines
9.4 KiB
Markdown
# ADR-300: RuView perception substrate — a phased program for the calibration, evidence, trust, and deployment layer
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- **Status**: Accepted — program framing; child ADRs carry their own status
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- **Date**: 2026-08-11
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- **Deciders**: ruv
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- **Tags**: program, architecture, calibration, evidence, provenance, fusion, fleet, epic
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## Context
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Three independent analyses converged on the same conclusion in 2026: a deep
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research sweep of the WiFi-sensing state of the art, an external technical and
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industry review, and an internal strategic assessment. All three found that
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RuView's gap is **not another sensing modality** but the horizontal layer that
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turns RF research into repeatable spatial infrastructure — measurement,
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calibration, out-of-distribution awareness, evidence accounting, authenticated
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identity, a canonical spatial model, and fleet deployment.
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Several of these primitives already have foundations in the tree and should be
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**unified and made to produce signed, expiring certificates**, not rebuilt:
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- `wifi-densepose-calibration` (enrollment, bank, anchor, runtime, specialist).
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- `frame::EvidenceLevel` L0–L5 as mandatory policy (ADR-282).
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- AetherArena benchmark infrastructure — v0 complete, CI-gated, witness ledger,
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live HF Space (ADR-149); board intentionally empty (benchmark-first).
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- RuField provenance/signature types (ADR-260/262/277/279) and BFLD
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attestation (ADR-141).
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- `worldgraph` crate; `wifi-densepose-mat/tracking` (tracker, fingerprint).
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- The in-flight ADR-295 (provenance state machine), ADR-296 (authenticated
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data plane, step one), ADR-298 (model sanity gates) — the first bricks.
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## What RuView is optimizing for
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Not inference capability — **epistemic reliability**:
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```
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signal → observation → calibration → inference → uncertainty → evidence
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→ certificate → policy → governed action
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```
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That pipeline is the product. The defensible category is not "RuView perceives
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the physical world" but "RuView determines what machines are justified in
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believing about it, proves why, and constrains what they may do with that
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belief."
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### Four non-negotiable program rules
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Every child ADR and implementation is bound by these:
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1. **UNKNOWN is a first-class output, never an error condition.** A surface that
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cannot answer says UNKNOWN and stays legible; it does not throw, default to a
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confident class, or silently hold a stale value.
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2. **Capability certificates bind cryptographically.** Hardware, environment,
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model, calibration, metrics, expiry, and evidence level are bound under one
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signature (ADR-318/ADR-305). An unsigned or partially-bound certificate is
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not a certificate.
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3. **One canonical semantics downstream.** Every surface (MQTT, REST, WebSocket,
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RuField, Matter, agents, UI) consumes the same Observation → Inference →
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GovernedEvent types (ADR-306). No transport- or UI-specific reinterpretation.
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4. **Benchmarks expose worst-domain performance and confidence intervals.**
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Pooled accuracy is never sufficient for promotion (ADR-317).
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### Certificate conditionality (the staleness guard)
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The central architectural risk is **certificate staleness**: a room can remain
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syntactically calibrated while its RF distribution has drifted enough to
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invalidate the certificate. Therefore a capability certificate is **conditional
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on a continuously evaluated domain signature** (ADR-302), not a one-time stamp.
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Crossing the OOD threshold automatically degrades state and triggers
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recalibration rather than silently continuing:
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```
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VALID → DEGRADED → UNKNOWN (auto-degrade on domain drift; triggers recalibration)
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```
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This binds ADR-301 (calibration), ADR-302 (OOD), ADR-318 (certificate), and
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ADR-321 (policy): a degraded/unknown domain must invalidate the affected
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capability *before* a false confident inference reaches an actuator.
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### Commercial framing — three primitives, not one product
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- **RuView Runtime** — provides perception.
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- **RuView Certify** — establishes what a deployment can legitimately claim
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(calibration + evidence + capability certificate + policy).
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- **RuView Trust / Fleet** — keeps that claim valid across hardware, firmware,
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models, and environmental drift (ADR-316).
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Certify and Trust are the parts that are hard to commoditize; presence
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detection alone is not.
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## Decision
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Adopt a **21-primitive phased program**. Each primitive gets a child ADR
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(ADR-301…ADR-321) that owns its detailed decision, status, and validation.
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This ADR owns the framing, the dependency order, and the phase assignment.
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### Primitive → ADR map
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| # | Primitive | ADR | Phase |
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|---|---|---|---|
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| 1 | Automatic domain calibration | ADR-301 | 1 |
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| 2 | Out-of-distribution detection | ADR-302 | 1 |
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| 3 | Ground-truth synchronization | ADR-303 | 2 |
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| 4 | Evidence engine | ADR-304 | 1 |
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| 5 | Authenticated sensor identity | ADR-305 | 1 |
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| 6 | Canonical spatial ontology | ADR-306 | 1 |
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| 7 | Persistent identity & tracking | ADR-307 | 2 |
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| 8 | Sensor placement optimizer | ADR-308 | 3 |
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| 9 | Active sensing | ADR-309 | 3 |
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| 10 | 802.11bf-native architecture | ADR-310 | 2 |
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| 11 | Real sensor fusion | ADR-311 | 2 |
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| 12 | Long-term spatial memory | ADR-312 | 3 |
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| 13 | Counterfactual inference | ADR-313 | 3 |
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| 14 | Information-gain scheduler | ADR-314 | 3 |
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| 15 | Digital RF twin | ADR-315 | 3 |
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| 16 | Fleet control plane | ADR-316 | 2 |
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| 17 | Real benchmark service (multi-domain scorecard) | ADR-317 | 1 |
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| 18 | Capability certificates | ADR-318 | 1 |
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| 19 | Witness chain | ADR-319 | 1 |
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| 20 | RuView sensor HAL | ADR-320 | 2 |
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| 21 | Decision policy — action authorization | ADR-321 | 1 |
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### Dependency order (why phase, not score, drives sequencing)
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```
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ADR-306 spatial ontology ──┐
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ADR-305 auth identity ─────┼──► ADR-301 calibration cert ──► ADR-302 OOD gating
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│ │ │
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└──► ADR-319 witness chain │ (VALID→DEGRADED→UNKNOWN)
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│ ▼
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ADR-304 evidence engine ──► ADR-318 capability certificate
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│ │ (conditional on domain signature)
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│ ▼
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│ ADR-321 decision policy ──► governed action
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└──► ADR-317 benchmark scorecard (per-PR gate)
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```
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- **Phase 1 (the certificate spine, built now):** foundational roots 303, 302,
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301, 298 (implemented first, in their own crates); then the dependent wave
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316, 299, 315, 314, 318. This set is exactly the acceptance test decomposed
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and is buildable without new hardware (types, logic, signatures, tests). The
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dependent wave adds the staleness guard (299 auto-degrades 315) and the
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action gate (318) that denies at the actuator on a degraded/unknown domain.
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- **Phase 2 (integration & operations):** 300 ground truth, 304 tracking, 307
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802.11bf-native, 308 fusion, 313 fleet, 317 HAL. Depends on the spine.
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- **Phase 3 (higher-ceiling, research-forward):** 305 placement optimizer, 306
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active sensing, 309 spatial memory, 310 counterfactual, 311 info-gain
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scheduler, 312 RF twin. Sit on top of the fused world state.
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Phase-2 and phase-3 child ADRs are authored as **Proposed** (design intent,
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validation plan) and are not implemented by the phase-1 swarm.
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### Acceptance test A — onboarding (from the strategic assessment)
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> Connect a new sensor type in an unseen room. Within 30 minutes RuView should
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> identify the hardware (HAL, ADR-320), calibrate the environment (ADR-301),
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> quantify whether it can reliably sense the requested phenomenon (ADR-302),
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> generate a signed capability certificate (ADR-318), expose governed spatial
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> events (ADR-306), and return UNKNOWN whenever evidence falls outside that
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> certificate (ADR-302).
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### Acceptance test B — drift invalidation (the staleness guard)
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> Deliberately change the room after certification — move furniture, change the
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> AP channel, or substitute hardware. RuView should detect distribution drift
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> (ADR-302), invalidate the affected capability (ADR-318) **before** a false
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> confident inference reaches an actuator (ADR-321 denies with the specific
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> failed condition), emit UNKNOWN, preserve the complete witness chain
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> (ADR-319), and explain exactly which certificate condition failed.
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Test B is the load-bearing one: it proves the substrate fails safe, not just
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that it perceives well. Phase 1 makes every clause except HAL testable in
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software; HAL (phase 2)
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closes the "identify the hardware" clause.
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## Consequences
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- One coherent substrate replaces overlapping ad-hoc schemas; every surface
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(MQTT, REST, WebSocket, RuField, Matter, agents) eventually consumes the
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ADR-306 ontology and the ADR-318 certificate.
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- Headline applications (pose/vitals/pointcloud models) are explicitly **not**
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the investment focus during this program, per the strategic direction.
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- Later ADRs may be revised as the spine lands; that is expected for a phased
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program and is why phase-2/3 ADRs ship as Proposed.
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## Validation
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- Each child ADR defines its own tests. The program-level exit is the
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acceptance test above, run end-to-end once phase 1 lands, and encoded as an
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AetherArena scenario (ADR-317).
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