scripts/ruview-sensing-server.py (~210 LOC) exposes the BFLD-gated
ESP32-C6 stream as the HTTP API surface @ruvnet/rvagent v0.1.0
(ADR-124, npm) expects. Closes the agentic-capability gap: any MCP
client (Claude Code, Codex, custom LLM agent) can now consume the
real C6 through the tool catalog without the Rust sensing-server
being deployed.
Endpoints (mirrors tools/ruview-mcp/src/tools/*.ts):
GET /health
GET /api/v1/sensing/latest — ADR-102 schema v2
GET /api/v1/edge/registry — node enumeration
GET /api/v1/vitals/<node_id>/latest — EdgeVitalsMessage
GET /api/v1/bfld/<node_id>/last_scan — BfldScanResponse
POST /api/v1/bfld/<node_id>/subscribe — subscription_id
c6-presence-watcher.py now writes a companion `/tmp/ruview-last-
feature.json` on each gated packet so the sensing-server can serve
without going back to the wire. Atomic tmp+rename. The bridge
DELIBERATELY returns identity_risk_score=null on every BFLD response
— mirroring ADR-125 §2.1.d at the HTTP boundary even though the
rvagent schema's slot is nullable.
Live smoke test against the real C6 (node_id=12):
$ curl -s http://localhost:3000/api/v1/vitals/12/latest
{"node_id":"12","timestamp_ms":1779741869154,"presence":true,
"n_persons":1,"confidence":1.0,"breathing_rate_bpm":18.75,
"heartrate_bpm":40.0,"motion":1.0}
$ curl -s http://localhost:3000/api/v1/bfld/12/last_scan
{"node_id":"12","identity_risk_score":null,"privacy_class":2,
"person_count":1,"confidence":1.0,"presence":true,
"timestamp_ns":1779741869154607104}
$ curl -s -X POST 'http://localhost:3000/api/v1/bfld/12/subscribe?duration_s=5'
{"subscription_id":"sub-1779741869177-12","node_id":"12",
"duration_s":5.0,"endpoint_hint":"poll GET ..."}
Next: AirPlay 2 voice synthesis (pyatv), bridge-with-children for
N rooms, PyO3 BFLD binding (SOTA), Shortcuts scaffolding.
Refs ADR-124 (@ruvnet/rvagent contract), ADR-125 §2.1.d, ADR-118.
Co-Authored-By: claude-flow <ruv@ruv.net>
Inserts a Python equivalent of `wifi-densepose-bfld::PrivacyClass` +
`PrivacyGate` between the rv_feature_state parser and the HAP toggle
file. ADR-125 §2.1.d structural invariant I1 is now enforced at the
HomeKit edge: only `Anonymous` (class 2) and `Restricted` (class 3)
frames may cross. `Raw` and `Derived` cause the watcher to exit 2
with the cited ADR clause — not a silent downgrade.
Class-3 (Restricted) strips `anomaly_score`, `env_shift_score`,
`node_coherence` even though current feature_state doesn't carry
identity-derived fields — future wire-format extensions inherit the
gate behavior for free.
Operator-facing semantic naming follows ADR-125 §2.1.d: the watcher
logs `Unknown Presence` (not "intruder detected" / "security state").
The naming is the contract — what end users see in automation rules
reads as ambient awareness, never threat detection.
Empirical (with --privacy-class anonymous on live C6):
pkts=58 valid=51 crc_bad=0 motion=True
privacy class: Anonymous (HAP-eligible)
semantic event: Unknown Presence
Refuse path validated:
$ ~/hap-venv/bin/python c6-presence-watcher.py --privacy-class derived
REFUSED: privacy class Derived (value=1) is not HAP-eligible.
ADR-125 §2.1.d structural invariant I1: only Anonymous (2) and
Restricted (3) frames may cross the HomeKit boundary.
$ echo $?
2
Branch: feat/adr-125-apple-fabric (kept off main while docker build
for sha 9fda90f3e is still compiling; this commit touches only
scripts/, not any docker workflow path-filter).
Refs ADR-125 §2.1.d, ADR-118 §2.1/§2.2.
Co-Authored-By: claude-flow <ruv@ruv.net>
scripts/c6-presence-watcher.py parses the 60-byte
rv_feature_state_t struct (RV_FEATURE_STATE_MAGIC = 0xC5110006)
emitted by firmware/esp32-csi-node/main/rv_feature_state.[ch] at
1-10 Hz from the real ESP32-C6 on ruv.net, validates the IEEE CRC32
over bytes [0..end-4], gates on RV_QFLAG_PRESENCE_VALID, applies
hysteresis (entry 0.40 / release 0.20) plus a 5 s idle-release
fallback, and toggles /tmp/ruview-motion — the same touch-file
contract that the already-paired HAP bridge consumes.
E2E validated against real hardware (no mocks, no simulation):
C6 (192.168.1.179, ch 5, RSSI -38)
└─ UDP/5005 → mac-mini (192.168.1.166)
└─ c6-presence-watcher.py (pid 8276)
└─ /tmp/ruview-motion
└─ hap-test-sensor.py (pid 84602)
└─ HAP-1.1 over mDNS
└─ iPhone Home app: RuView Test Motion = True
10 s sample: pkts=63 valid=51 crc_bad=0 motion -> True
Iter 3 next: insert wifi-densepose-bfld PrivacyGate between the
UDP parse and the threshold so only class-2/3 frames cross the HAP
boundary (ADR-118 §2.2 invariant I1 holds at the HomeKit edge —
ADR-125 §2.1.d).
Refs ADR-125, ADR-118, ADR-081.
Co-Authored-By: claude-flow <ruv@ruv.net>
ruv