Slice 2 of issue #17 — the OBSERVE half. New ratatoskr.provider.opfeed:
- OpEvent{ts, plane, op, session_id, status, req_summary, resp_summary,
turn_id=None} — scope-only summaries, never record bodies / PAD content
- OpSink Protocol + JsonlOpSink (continuous append-only JSONL, INV-007)
- instrument_provider_app(app, *, plane, sink): an ASGI middleware over the
built bifrost provider app. Buffers+replays the request, captures the
response, reads session_id off the dispatch JWT's "sub" claim (INV-005 —
present for ALL verbs incl. search/get/delete, which bifrost withholds from
the store method), emits exactly one OpEvent per inbound bifrost-call incl.
handshake + errors. Read-only over dispatch; store scope semantics untouched
(INV-004). A sink/summary failure is swallowed + logged, never breaks serve
(POST-003).
- Per-verb summaries: search {scope_all,scope_any,top_k}->{hit_count,hits};
upsert_many {record_count,scopes}->{upserted,replayed}; get/get_many/
delete_many {ids}->{found_count|deleted}; emit (affect, opaque)->{stored};
handshake {caps_requested}->{caps_granted,ok}; error->{error: code}
- serve_memory/serve wired: opt-in via RATATOSKR_OPFEED_PATH (maybe_instrument)
Resolves the contract's open question: the dispatch JWT DOES carry session_id
(= the "sub" claim). Tests drive the REAL bifrost dispatch end-to-end with
minted JWTs. 11 new tests; full suite 453 green; ruff + mypy clean (opfeed.py).
Stand-up glue for the live affect negotiation smoke vs Worldtree v0.35.2.
- ratatoskr.provider.serve: build_app_from_env (tested env->app seam) + main
(uvicorn shell). Config from env: RATATOSKR_HEIMDALL_KEY (required),
RATATOSKR_AFFECT_DB, RATATOSKR_CONSUMER_ID, RATATOSKR_PROVIDER_HOST/PORT.
- console-script ratatoskr-provider = ratatoskr.provider.serve:main.
- Heimdall key utf-8-encoded into HS256 key_bytes; revisit if Worldtree signs
with base64/raw bytes (confirm format at wire-up).
vh