feat(#17): dispatch-layer op-feed for the provider (slice 2 — Observe)

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).

pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "hatchling.build"
 
 [project]
 name = "ratatoskr"
-version = "0.17.8"
+version = "0.17.9"
 description = "Worldtree Conversation API debug TUI — multi-pane observability dashboard"
 readme = "README.md"
 requires-python = ">=3.12"

src/ratatoskr/provider/opfeed.py

@@ -0,0 +1,256 @@
+"""Dispatch-layer observe feed for the Bifrost provider (issue #17, Observe half).
+
+`instrument_provider_app` wraps a built provider ASGI app so every inbound
+bifrost-call emits one structured `OpEvent` — correlated by `session_id` read off
+the dispatch JWT — WITHOUT touching the store's scope semantics (INV-004). It is
+the lens that lets ratatoskr, owning BOTH ends of the round-trip, see exactly
+which memory/affect ops a given turn produced.
+
+The store-method stdout shim in `memory_store.py` cannot see `session_id` for
+search/get/delete (bifrost withholds `ctx` from those store methods); this feed
+sits at the DISPATCH/ASGI layer where the JWT — and thus `session_id` (its `sub`
+claim) — is always present (INV-005).
+"""
+from __future__ import annotations
+
+import base64
+import json
+import sys
+from dataclasses import asdict, dataclass
+from datetime import UTC, datetime
+from typing import Any, Protocol
+
+
+@dataclass(frozen=True)
+class OpEvent:
+    """One observed bifrost-call at the dispatch layer (scope-only, never content)."""
+
+    ts: str  # ISO 8601 UTC, capture time
+    plane: str  # "memory" | "affect"
+    op: str  # verb: search / upsert_many / get / get_many / delete_many / emit / handshake
+    session_id: str | None  # JWT `sub` at the dispatch layer; None only if the JWT omits it
+    status: str  # "ok" | "error"
+    req_summary: dict[str, Any]  # per-verb, scope-only — no record bodies
+    resp_summary: dict[str, Any]  # per-verb counts + ids/scores — never verbatim content
+    turn_id: str | None = None  # INV-005 reservation, literal; unused in v1
+
+
+class OpSink(Protocol):
+    """Anything that accepts an OpEvent. v1 ships JsonlOpSink; tests pass fakes."""
+
+    def emit(self, event: OpEvent) -> None: ...
+
+
+class JsonlOpSink:
+    """Continuous append-only JSONL sink (INV-007: NOT per-session). One JSON line
+    per OpEvent to a text stream (default stdout)."""
+
+    def __init__(self, stream: Any = None) -> None:
+        self._stream = sys.stdout if stream is None else stream
+
+    def emit(self, event: OpEvent) -> None:
+        self._stream.write(json.dumps(asdict(event), separators=(",", ":")) + "\n")
+        self._stream.flush()
+
+
+def maybe_instrument_from_env(app: Any, env: Any, *, plane: str) -> Any:
+    """Opt-in serve wiring: when `RATATOSKR_OPFEED_PATH` is set, wrap `app` with
+    the dispatch-layer op-feed writing JSONL to that path; otherwise return `app`
+    unchanged. The append stream lives for the process (a long-running server)."""
+    path = env.get("RATATOSKR_OPFEED_PATH")
+    if not path:
+        return app
+    stream = open(path, "a", encoding="utf-8")  # process-lifetime append stream
+    return instrument_provider_app(app, plane=plane, sink=JsonlOpSink(stream))
+
+
+_BIFROST_PATHS = (
+    "/bifrost/handshake",
+    "/bifrost/memory-call",
+    "/bifrost/affect-call",
+)
+
+
+def _b64url_decode(seg: str) -> bytes:
+    return base64.urlsafe_b64decode(seg + "=" * (-len(seg) % 4))
+
+
+def _session_id_from_auth(auth: bytes | None) -> str | None:
+    """Read the `sub` claim (= session_id, per bifrost DispatchContext) off the
+    dispatch JWT WITHOUT verifying its signature — the inner app does real
+    verification; we only read a claim for correlation. None if absent/malformed."""
+    if not auth:
+        return None
+    try:
+        token = auth.decode("latin-1").strip()
+        if token.lower().startswith("bearer "):
+            token = token[7:].strip()
+        parts = token.split(".")
+        if len(parts) != 3:
+            return None
+        payload = json.loads(_b64url_decode(parts[1]))
+        sub = payload.get("sub")
+        return sub if isinstance(sub, str) else None
+    except Exception:
+        return None
+
+
+def _op_from(path: str, req: dict[str, Any]) -> str:
+    """The verb: 'handshake' for the handshake path; otherwise the body's
+    `operation`, with the affect-plane `affect.` prefix stripped (affect.emit ->
+    emit) so op vocabulary stays bare per the contract."""
+    if path == "/bifrost/handshake":
+        return "handshake"
+    operation = req.get("operation") or "unknown"
+    if path == "/bifrost/affect-call" and operation.startswith("affect."):
+        return operation.split(".", 1)[1]
+    return operation
+
+
+def _ids_summary(args: dict[str, Any]) -> list[Any]:
+    """Mirror bifrost `_ids_arg`: ids | chunk_ids | [chunk_id|id]."""
+    ids = args.get("ids") or args.get("chunk_ids")
+    if ids is None:
+        single = args.get("chunk_id") or args.get("id")
+        ids = [single] if single is not None else []
+    return ids
+
+
+def _req_summary(plane: str, path: str, op: str, req: dict[str, Any]) -> dict[str, Any]:
+    """Scope-only request summary — NEVER record bodies / PAD content."""
+    if path == "/bifrost/handshake":
+        return {"caps_requested": req.get("capabilities_requested")}
+    if plane == "affect":
+        return {}  # affect stays conduit-opaque — no PAD content surfaced
+    args = req.get("args") or {}
+    if op == "search":
+        return {
+            "scope_all": args.get("scope_all") or {},
+            "scope_any": args.get("scope_any") or [],
+            "top_k": args.get("top_k"),
+        }
+    if op == "upsert_many":
+        records = args.get("records") or []
+        return {
+            "record_count": len(records),
+            "scopes": [r.get("scope") for r in records],
+        }
+    if op in ("get", "get_many", "delete_many"):
+        return {"ids": _ids_summary(args)}
+    return {}
+
+
+def _resp_summary(
+    plane: str, path: str, op: str, resp: dict[str, Any], status: str
+) -> dict[str, Any]:
+    """Per-verb counts + ids/scores — never verbatim content. On error, the
+    bifrost error `code` (INV-007: failures recorded, not hidden)."""
+    if status == "error":
+        return {"error": resp.get("code")}
+    if path == "/bifrost/handshake":
+        return {"ok": True, "caps_granted": resp.get("capabilities_granted")}
+    if plane == "affect":
+        return {"stored": bool(resp.get("stored"))}
+    if op == "search":
+        results = resp.get("results") or []
+        return {
+            "hit_count": len(results),
+            "hits": [
+                {"chunk_id": r.get("chunk_id"), "score": r.get("score")}
+                for r in results
+            ],
+        }
+    if op == "upsert_many":
+        return {"upserted": resp.get("upserted"), "replayed": resp.get("replayed")}
+    if op == "get":
+        return {"found_count": 1 if resp.get("record") else 0}
+    if op == "get_many":
+        return {"found_count": len(resp.get("records") or [])}
+    if op == "delete_many":
+        return {"deleted": resp.get("deleted")}
+    return {}
+
+
+def _build_event(
+    plane: str, path: str, scope: dict[str, Any], req_body: bytes, captured: dict[str, Any]
+) -> OpEvent:
+    headers = dict(scope.get("headers") or [])
+    session_id = _session_id_from_auth(headers.get(b"authorization"))
+    status = "ok" if 200 <= int(captured["status"]) < 300 else "error"
+    req = _safe_json(req_body)
+    resp = _safe_json(captured["body"])
+
+    op = _op_from(path, req)
+    return OpEvent(
+        ts=datetime.now(UTC).isoformat(),
+        plane=plane,
+        op=op,
+        session_id=session_id,
+        status=status,
+        req_summary=_req_summary(plane, path, op, req),
+        resp_summary=_resp_summary(plane, path, op, resp, status),
+    )
+
+
+def _safe_json(raw: bytes) -> dict[str, Any]:
+    if not raw:
+        return {}
+    try:
+        value = json.loads(raw)
+    except (json.JSONDecodeError, ValueError):
+        return {}
+    return value if isinstance(value, dict) else {}
+
+
+def instrument_provider_app(app: Any, *, plane: str, sink: OpSink) -> Any:
+    """Wrap a built provider ASGI `app` so each inbound bifrost-call emits one
+    OpEvent to `sink`. Read-only over dispatch — store scope semantics untouched
+    (INV-004). A sink/summary failure never propagates into the dispatch path
+    (POST-003 / INV-007) — it is swallowed and logged to stderr.
+    """
+    if plane not in ("memory", "affect"):
+        raise ValueError(f"plane must be 'memory' or 'affect', got {plane!r}")
+
+    async def wrapped(scope: dict[str, Any], receive: Any, send: Any) -> None:
+        if scope.get("type") != "http" or scope.get("path") not in _BIFROST_PATHS:
+            await app(scope, receive, send)
+            return
+
+        # Buffer the request body so we can BOTH summarise it AND replay it to the
+        # inner app (the inner app consumes `receive`; we must not steal the body).
+        req_body = b""
+        more = True
+        while more:
+            message = await receive()
+            if message["type"] == "http.request":
+                req_body += message.get("body", b"")
+                more = message.get("more_body", False)
+            else:  # http.disconnect
+                more = False
+
+        replayed = False
+
+        async def replay_receive() -> dict[str, Any]:
+            nonlocal replayed
+            if not replayed:
+                replayed = True
+                return {"type": "http.request", "body": req_body, "more_body": False}
+            return {"type": "http.disconnect"}
+
+        captured: dict[str, Any] = {"status": 500, "body": b""}
+
+        async def capture_send(message: dict[str, Any]) -> None:
+            if message["type"] == "http.response.start":
+                captured["status"] = message["status"]
+            elif message["type"] == "http.response.body":
+                captured["body"] += message.get("body", b"")
+            await send(message)
+
+        await app(scope, replay_receive, capture_send)
+
+        try:
+            sink.emit(_build_event(plane, scope["path"], scope, req_body, captured))
+        except Exception as exc:  # observe gap, never a serve break (POST-003)
+            sys.stderr.write(f"[opfeed] OpEvent emit failed (swallowed): {exc!r}\n")
+
+    return wrapped

src/ratatoskr/provider/serve.py

@@ -12,6 +12,7 @@ import os
 from collections.abc import Mapping
 
 from ratatoskr.provider.affect_store import build_affect_provider_app, open_affect_store
+from ratatoskr.provider.opfeed import maybe_instrument_from_env
 
 
 def build_app_from_env(env: Mapping[str, str] | None = None):
@@ -23,11 +24,13 @@ def build_app_from_env(env: Mapping[str, str] | None = None):
             "RATATOSKR_HEIMDALL_KEY is required to serve the affect provider"
         )
     store = open_affect_store(env.get("RATATOSKR_AFFECT_DB", "affect.db"))
-    return build_affect_provider_app(
+    app = build_affect_provider_app(
         store,
         heimdall_key=key.encode(),
         consumer_id=env.get("RATATOSKR_CONSUMER_ID", "ratatoskr"),
     )
+    # Issue #17 (Observe): opt-in dispatch-layer op-feed when RATATOSKR_OPFEED_PATH set.
+    return maybe_instrument_from_env(app, env, plane="affect")
 
 
 def main() -> None:

src/ratatoskr/provider/serve_memory.py

@@ -17,6 +17,7 @@ import os
 from collections.abc import Mapping
 
 from ratatoskr.provider.memory_store import build_memory_provider_app, open_memory_store
+from ratatoskr.provider.opfeed import maybe_instrument_from_env
 
 
 def build_memory_app_from_env(env: Mapping[str, str] | None = None):
@@ -43,11 +44,13 @@ def build_memory_app_from_env(env: Mapping[str, str] | None = None):
     store = open_memory_store(
         env.get("RATATOSKR_MEMORY_DB", "memory.db"), embedding_dim=embedding_dim
     )
-    return build_memory_provider_app(
+    app = build_memory_provider_app(
         store,
         heimdall_key=key.encode(),
         consumer_id=env.get("RATATOSKR_CONSUMER_ID", "ratatoskr"),
     )
+    # Issue #17 (Observe): opt-in dispatch-layer op-feed when RATATOSKR_OPFEED_PATH set.
+    return maybe_instrument_from_env(app, env, plane="memory")
 
 
 def main() -> None:

tests/test_provider_opfeed.py

@@ -0,0 +1,284 @@
+"""Tests for the dispatch-layer observe feed (ratatoskr.provider.opfeed).
+
+Issue #17 slice 2 (the Observe half). These drive the REAL bifrost provider ASGI
+app end-to-end through `instrument_provider_app`, minting a valid dispatch JWT with
+bifrost's own `mint_dispatch_jwt` — so the envelopes and the session_id claim are
+the real wire shapes, not hand-mocked guesses (the repo's "test against the
+shipped lib" posture).
+"""
+from __future__ import annotations
+
+import httpx
+import pytest
+from bifrost.core.dispatch_jwt import mint_dispatch_jwt
+
+from ratatoskr.provider.affect_store import (
+    build_affect_provider_app,
+    open_affect_store,
+)
+from ratatoskr.provider.memory_store import (
+    build_memory_provider_app,
+    open_memory_store,
+)
+from ratatoskr.provider.opfeed import instrument_provider_app
+
+_KEY = "shared-secret"
+_DIM = 8
+_CONSUMER = "ratatoskr"
+
+
+class _RecordingSink:
+    """An OpSink that just records events (so a test can assert on them)."""
+
+    def __init__(self) -> None:
+        self.events: list = []
+
+    def emit(self, event) -> None:
+        self.events.append(event)
+
+
+def _mint(session_id: str, scope: list[str]) -> str:
+    return mint_dispatch_jwt(
+        session_id=session_id,
+        consumer_id=_CONSUMER,
+        issuer="worldtree",
+        scope=scope,
+        secret_or_key=_KEY,
+        algorithm="HS256",
+    )
+
+
+def _wrapped_memory_app(sink):
+    store = open_memory_store(":memory:", embedding_dim=_DIM)
+    app = build_memory_provider_app(
+        store, heimdall_key=_KEY.encode(), consumer_id=_CONSUMER
+    )
+    return instrument_provider_app(app, plane="memory", sink=sink), store
+
+
+def _wrapped_affect_app(sink):
+    store = open_affect_store(":memory:")
+    app = build_affect_provider_app(
+        store, heimdall_key=_KEY.encode(), consumer_id=_CONSUMER
+    )
+    return instrument_provider_app(app, plane="affect", sink=sink), store
+
+
+def _chunk(cid: str, scope: dict | None = None) -> dict:
+    return {
+        "id": cid,
+        "scope": scope or {"end_user": "u1"},
+        "embedding": [0.1] * _DIM,
+        "content": "x",
+    }
+
+
+class _RaisingSink:
+    def emit(self, event) -> None:
+        raise RuntimeError("boom")
+
+
+async def _post(app, path: str, body: dict, jwt: str | None) -> httpx.Response:
+    transport = httpx.ASGITransport(app=app)
+    headers = {"Authorization": f"Bearer {jwt}"} if jwt else {}
+    async with httpx.AsyncClient(
+        transport=transport, base_url="http://provider"
+    ) as client:
+        return await client.post(path, json=body, headers=headers)
+
+
+class TestOpFeedMemory:
+    async def test_search_emits_one_opevent(self) -> None:
+        """search [tracer]: a memory search dispatched through the wrapped app
+        emits EXACTLY ONE OpEvent — plane=memory, op=search, session_id from the
+        JWT sub, status=ok, scope-only req/resp summaries (POST-001/002, INV-005).
+        Empty store → 0 hits."""
+        sink = _RecordingSink()
+        app, _store = _wrapped_memory_app(sink)
+        jwt = _mint("session-abc", ["memory:read"])
+        body = {
+            "operation": "search",
+            "args": {
+                "vector": [0.0] * _DIM,
+                "top_k": 5,
+                "scope_all": {"end_user": "u1"},
+                "scope_any": [],
+            },
+        }
+        resp = await _post(app, "/bifrost/memory-call", body, jwt)
+
+        assert resp.status_code == 200
+        assert len(sink.events) == 1
+        ev = sink.events[0]
+        assert ev.plane == "memory"
+        assert ev.op == "search"
+        assert ev.session_id == "session-abc"
+        assert ev.status == "ok"
+        assert ev.req_summary == {
+            "scope_all": {"end_user": "u1"},
+            "scope_any": [],
+            "top_k": 5,
+        }
+        assert ev.resp_summary["hit_count"] == 0
+        assert ev.turn_id is None
+        assert ev.ts  # non-empty capture timestamp
+
+    async def test_upsert_many_summary(self) -> None:
+        """upsert_many: req carries record_count + per-record scopes (no bodies);
+        resp carries upserted + replayed."""
+        sink = _RecordingSink()
+        app, _store = _wrapped_memory_app(sink)
+        jwt = _mint("session-up", ["memory:write"])
+        body = {
+            "operation": "upsert_many",
+            "args": {"records": [_chunk("c1"), _chunk("c2", {"end_user": "u2"})]},
+            "idempotency_key": "k1",
+        }
+        resp = await _post(app, "/bifrost/memory-call", body, jwt)
+
+        assert resp.status_code == 200
+        ev = sink.events[-1]
+        assert ev.op == "upsert_many"
+        assert ev.status == "ok"
+        assert ev.req_summary == {
+            "record_count": 2,
+            "scopes": [{"end_user": "u1"}, {"end_user": "u2"}],
+        }
+        assert ev.resp_summary == {"upserted": 2, "replayed": False}
+
+    async def test_get_and_delete_summaries(self) -> None:
+        """get -> found_count; delete_many -> deleted; both req carry ids only."""
+        sink = _RecordingSink()
+        app, _store = _wrapped_memory_app(sink)
+        await _post(
+            app,
+            "/bifrost/memory-call",
+            {
+                "operation": "upsert_many",
+                "args": {"records": [_chunk("c1")]},
+                "idempotency_key": "k1",
+            },
+            _mint("s", ["memory:write"]),
+        )
+        await _post(
+            app,
+            "/bifrost/memory-call",
+            {"operation": "get", "args": {"chunk_id": "c1"}},
+            _mint("s", ["memory:read"]),
+        )
+        get_ev = sink.events[-1]
+        assert get_ev.op == "get"
+        assert get_ev.req_summary == {"ids": ["c1"]}
+        assert get_ev.resp_summary == {"found_count": 1}
+
+        await _post(
+            app,
+            "/bifrost/memory-call",
+            {"operation": "delete_many", "args": {"ids": ["c1"]}},
+            _mint("s", ["memory:write"]),
+        )
+        del_ev = sink.events[-1]
+        assert del_ev.op == "delete_many"
+        assert del_ev.req_summary == {"ids": ["c1"]}
+        assert del_ev.resp_summary == {"deleted": 1}
+
+    async def test_error_status_records_the_bifrost_code(self) -> None:
+        """error [adversarial]: an unknown operation -> status=error and the
+        bifrost error `code` is recorded, never hidden (INV-007)."""
+        sink = _RecordingSink()
+        app, _store = _wrapped_memory_app(sink)
+        resp = await _post(
+            app,
+            "/bifrost/memory-call",
+            {"operation": "bogus", "args": {}},
+            _mint("s", ["memory:read"]),
+        )
+        assert resp.status_code != 200
+        assert len(sink.events) == 1
+        ev = sink.events[0]
+        assert ev.op == "bogus"
+        assert ev.status == "error"
+        assert ev.resp_summary == {"error": "memory.invalid_arguments"}
+
+    async def test_missing_jwt_session_id_none_still_emits(self) -> None:
+        """no_jwt [boundary]: a call with NO Authorization still emits exactly one
+        OpEvent with session_id=None (INV-005) and status=error (auth rejected)."""
+        sink = _RecordingSink()
+        app, _store = _wrapped_memory_app(sink)
+        resp = await _post(
+            app,
+            "/bifrost/memory-call",
+            {"operation": "search", "args": {"vector": [0.0] * _DIM, "top_k": 1}},
+            None,
+        )
+        assert resp.status_code != 200
+        assert len(sink.events) == 1
+        assert sink.events[0].session_id is None
+        assert sink.events[0].status == "error"
+
+    async def test_handshake_op_from_path(self) -> None:
+        """handshake: op is derived from the PATH (handshake bodies carry no
+        `operation` field); still exactly one OpEvent (POST-001 incl. handshake)."""
+        sink = _RecordingSink()
+        app, _store = _wrapped_memory_app(sink)
+        resp = await _post(
+            app,
+            "/bifrost/handshake",
+            {"bifrost_version": "99.0.0", "mcp_version": "0.4.0"},
+            None,
+        )
+        assert resp.status_code != 200  # version-major mismatch, cleanly rejected
+        assert len(sink.events) == 1
+        assert sink.events[0].op == "handshake"
+
+    async def test_sink_failure_never_breaks_dispatch(self) -> None:
+        """sink_swallow [adversarial]: a raising sink must NOT break the dispatch
+        path — the search still returns 200 (POST-003 / INV-007)."""
+        app, _store = _wrapped_memory_app(_RaisingSink())
+        resp = await _post(
+            app,
+            "/bifrost/memory-call",
+            {
+                "operation": "search",
+                "args": {"vector": [0.0] * _DIM, "top_k": 1, "scope_all": {}},
+            },
+            _mint("s", ["memory:read"]),
+        )
+        assert resp.status_code == 200
+
+
+class TestOpFeedAffect:
+    async def test_emit_op_normalized_and_plane_affect(self) -> None:
+        """affect emit: op is the bare verb (affect.emit -> emit), plane=affect,
+        session_id from the JWT; affect stays conduit-opaque (empty req_summary)."""
+        sink = _RecordingSink()
+        app, _store = _wrapped_affect_app(sink)
+        jwt = _mint("session-aff", ["affect:write"])
+        body = {
+            "operation": "affect.emit",
+            "args": {
+                "agent_id": "ratatoskr:sindra",
+                "end_user_id": "u1",
+                "pad": {"p": 0.1, "a": 0.2, "d": 0.3},
+                "valence": 0.5,
+                "emitted_at": "2026-06-18T00:00:00Z",
+            },
+            "idempotency_key": "k1",
+        }
+        resp = await _post(app, "/bifrost/affect-call", body, jwt)
+
+        assert resp.status_code == 200
+        assert len(sink.events) == 1
+        ev = sink.events[0]
+        assert ev.plane == "affect"
+        assert ev.op == "emit"
+        assert ev.session_id == "session-aff"
+        assert ev.status == "ok"
+        assert ev.req_summary == {}  # conduit-opaque
+        assert ev.resp_summary == {"stored": True}
+
+
+class TestInstrumentGuards:
+    def test_unknown_plane_raises(self) -> None:
+        with pytest.raises(ValueError):
+            instrument_provider_app(object(), plane="persona", sink=_RecordingSink())

tests/test_provider_serve.py

@@ -21,3 +21,16 @@ def test_build_app_from_env_builds_app_with_routes():
     paths = {getattr(r, "path", None) for r in app.routes}
     assert "/bifrost/handshake" in paths
     assert "/bifrost/affect-call" in paths
+
+
+def test_opfeed_path_wraps_app(tmp_path):
+    # Issue #17 slice 2: RATATOSKR_OPFEED_PATH opts the dispatch op-feed in; the
+    # returned app is then the instrumented ASGI wrapper, not the raw Starlette.
+    app = build_app_from_env(
+        {
+            "RATATOSKR_HEIMDALL_KEY": "shared-secret",
+            "RATATOSKR_AFFECT_DB": ":memory:",
+            "RATATOSKR_OPFEED_PATH": str(tmp_path / "ops.jsonl"),
+        }
+    )
+    assert not hasattr(app, "routes")  # wrapped: a bare ASGI callable

tests/test_provider_serve_memory.py

@@ -46,3 +46,17 @@ def test_build_memory_app_from_env_builds_app_with_routes():
     paths = {getattr(r, "path", None) for r in app.routes}
     assert "/bifrost/handshake" in paths
     assert "/bifrost/memory-call" in paths
+
+
+def test_opfeed_path_wraps_app(tmp_path):
+    # Issue #17 slice 2: RATATOSKR_OPFEED_PATH opts the dispatch op-feed in; the
+    # returned app is then the instrumented ASGI wrapper, not the raw Starlette.
+    app = build_memory_app_from_env(
+        {
+            "RATATOSKR_HEIMDALL_KEY": "shared-secret",
+            "RATATOSKR_MEMORY_DB": ":memory:",
+            "RATATOSKR_MEMORY_EMBEDDING_DIM": "8",
+            "RATATOSKR_OPFEED_PATH": str(tmp_path / "ops.jsonl"),
+        }
+    )
+    assert not hasattr(app, "routes")  # wrapped: a bare ASGI callable

uv.lock

@@ -1052,7 +1052,7 @@ wheels = [
 
 [[package]]
 name = "ratatoskr"
-version = "0.17.8"
+version = "0.17.9"
 source = { editable = "." }
 dependencies = [
     { name = "httpx" },