* fix(deriver): chunk scope backfill so large sessions don't OOM the worker
_run_backfill embedded, wrote, and synced every planned copy at once, holding
one Python float list per document. A 14k-document session is ~580MB of
vectors alone, and several backfills run concurrently, which OOM-killed the
deriver at its 1000Mi limit and crash-looped it since the work units never
completed. Phases 2-4 now run per chunk of 500 specs and drop each chunk's
embeddings once synced.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
* fix(deriver): hydrate backfill embeddings per chunk
Phase 1 no longer materializes every source embedding into plans.
load_only skips the vector column on the plan queries, and each chunk
reloads only its source embeddings before embed/write/sync.
* fix(deriver): lock scope membership across backfill chunk writes
SELECT ... FOR UPDATE on the active SessionPeer row so a concurrent
leave cannot commit between the membership check and the copy inserts.
Adds a concurrency test that asserts the leave blocks until commit.
* fix: add test for memory bound
---------
Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
Co-authored-by: Vineeth Voruganti <13438633+VVoruganti@users.noreply.github.com>
* fix: enforce explicit-document session purity in dedup/merge paths
Audit for DEV-2000 (Scopes RFC prerequisite): explicit-level documents must
stay session-pure so scope memory can be built by copying explicit documents
between collections. Two classes of violation were possible:
- Exact-content and semantic dedup in crud/document.py matched candidates
with no level or session scoping, so an explicit document could be
reinforced by — or soft-deleted in favor of — a same-content document from
a different session or a different level (silently merging cross-session
derivations into one row).
- The generic create_observations tool handler accepted level='explicit'
from agents with no message context (dreamer/dialectic), which would mint
session-less explicit documents.
Enforcement (refuse, never rewrite):
- create_documents refuses explicit documents with a null session_name
- exact dedup keys on (content, level, session-for-explicit); derived levels
keep cross-session consolidation
- is_rejected_duplicate scopes candidate search to the same level, and the
same session for explicit documents
- the create_observations tool rejects explicit-level input outside message
ingestion (deriver) context
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
* feat: add card_refresh dream type for event-driven peer-card updates
Adds a lightweight dream variant (DEV-2000, Scopes RFC prerequisite) that
runs ONLY the peer-card update — for event-driven refreshes such as scope
membership changes and cold starts:
- DreamType.CARD_REFRESH alongside OMNI; dispatched by process_dream to a
new run_card_refresh_dream orchestration
- CardRefreshSpecialist: restricted to get_recent_observations,
search_memory, and update_peer_card (no observation-mutating tools), with
a low tool-iteration cap of min(6, DREAM.MAX_TOOL_ITERATIONS)
- rebuild=True mode carried in the dream payload: the existing card is NOT
injected into the prompt and the specialist rebuilds it solely from
observations present in the collection (for use after removals)
- enqueue-able via the manual enqueue_dream path (bypasses volume gates);
the work-unit key already embeds the dream type so a card refresh never
collides with a pending omni dream. POST /v3/workspaces/{id}/schedule_dream
accepts dream_type=card_refresh plus the rebuild flag
- card refreshes never advance the omni dream guard pair
(last_dream_at / last_dream_document_count)
- shared PEER CARD prompt section extracted (verbatim) from
DeductionSpecialist for reuse; CallPurpose gains dream.card_refresh
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
* feat: reserve scope__ peer namespace with kind flag and guardrails
Introduce the scope peer namespace (scope__<name>) and the authoritative
{"kind": "scope"} configuration flag, plus the server-side guardrails:
- src/utils/scopes.py: single source of truth for the prefix, kind flag,
and name helpers (scope_peer_name / is_scope_peer_name /
scope_name_from_peer / validate_no_scope_peer_names)
- reject reserved-prefix names on peer get-or-create (422)
- reject scope peers as message authors in crud.create_messages (422)
- reject scope peers as chat/representation targets (422); a scope peer
as the path-level observer is deferred to Phase 2b
- reject scope peers on the generic session-peer add/set/remove routes
and the session-create peers mapping (422, directing to scopes routes)
- peers.list excludes scope peers by default; new PeerGet.kind option
("scope" | "all") switches the view via a configuration JSONB filter
- schemas: Scope / ScopeCreate / ScopeSessions(Add) and
SessionCreate.scopes (unprefixed scope names, validated)
Part of DEV-1997 (Scopes RFC DEV-1970).
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
* feat: add scopes CRUD routes and session-create scopes wiring
New /v3/workspaces/{workspace_id}/scopes facade (workspace-level auth;
peer- and session-scoped keys are rejected):
POST "" create-or-get (201/200)
POST /list paginated scope list
GET /{scope_id} single scope
POST /{scope_id}/sessions add memberships
DELETE /{scope_id}/sessions/{session_id} remove membership
GET /{scope_id}/sessions list member session ids
- crud/scope.py: get_or_create_scopes stamps the backing peer with
{"kind": "scope", "observe_me": false} and refuses to adopt a
legacy peer occupying the reserved name without the flag (409)
- memberships are session_peers rows with observe_others=true /
observe_me=false — identical to a hand-built observer peer
- SessionCreate.scopes: create-or-get each scope peer and add the
membership at session creation (the no-backfill common path)
- crud/session.py: public upsert_session_peers wrapper so the facade
bypasses the route-level guardrails without reaching into privates
Backfill of pre-existing documents and reconciliation on removal land in
DEV-1999; membership only affects messages ingested after the change.
Part of DEV-1997 (Scopes RFC DEV-1970).
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
* test: cover scopes facade, guardrails, and observer semantics
- create-or-get idempotency, list/get, name validation, legacy-collision
rejection (409), auth scoping (workspace key ok, peer/session keys 401)
- reserved prefix rejected on peer create; peers.list kind filtering
- scope peers rejected as message authors, chat/representation targets,
and on the generic session-peer routes
- membership add/list/remove with observe_others=true / observe_me=false
row shape asserted via DB, and facade-less equivalence with a
hand-built observer peer
- end-to-end litmus: after adding a session to a scope, the deriver
enqueue fan-out includes the scope peer as an observer
- session creation with scopes: [a, b] creates both memberships
Part of DEV-1997 (Scopes RFC DEV-1970).
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
* feat: scope backfill-by-copy and removal reconciliation jobs
Retroactive scope membership changes (DEV-1999):
- New queue task types scope_backfill / scope_removal with payloads,
work-unit keys ({task}:{workspace}:{scope_peer}:{session}), deduped
enqueue (mirrors enqueue_dream), and consumer dispatch.
- Backfill copies a session's explicit documents from each sender's
global (P, P) collection into the scope's (scope_peer, P) collection
with internal_metadata.copied_from as the idempotency marker;
soft-deleted copies from an earlier removal are restored, so
add -> remove -> re-add converges on exactly one live copy. Completion
enqueues one manual omni dream per touched collection.
- Removal soft-deletes the session's explicit documents in the scope's
collections and cascades (fail-closed, transitively) to derived
documents whose source_ids intersect anything removed, deletes the
vectors from the external store, then enqueues a card_refresh dream
with rebuild=True plus a manual omni dream per touched collection.
- Zero LLM re-derivation: explicit documents are session-pure (DEV-2000
invariant); the only external call is re-embedding rows whose
embedding column is NULL (external-store deployments).
- Per-session job status lives in the scope peer's internal_metadata
under backfill_status, written via single-statement JSONB merges
(concurrent-writer safe) and surfaced at
GET /v3/workspaces/{w}/scopes/{scope_id}/status.
- Enqueued from the scopes add-sessions route and SessionCreate.scopes
handling, only when the session already has messages.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
* test: add scope backfill/removal test coverage, fix backfill status JSONB bug
Adds tests/deriver/test_scope_backfill.py covering the DEV-1999 scope
backfill-by-copy and removal reconciliation jobs implemented in a prior
commit: explicit-doc copying, copied_from idempotency (including
add->remove->re-add), multi-peer collection routing, removal cascade to
dependent derived docs, dream enqueues (manual omni on backfill;
card_refresh rebuild + omni on removal), the status route, and add-sessions
route wiring (backfill enqueued only when the session already has messages).
Fixes a real production bug surfaced by these tests: update_scope_backfill_status
passed json.dumps()'d strings through SQLAlchemy cast(..., JSONB), which
double-encodes (psycopg re-serializes the already-JSON string), producing a
JSONB string scalar instead of an object. Postgres's `||` between two
non-array jsonb scalars doesn't merge — it silently wraps both into a
2-element array, corrupting backfill_status into a list. This crashed
clear_scope_backfill_status's `#-` path delete (called on every removal)
with "path element is not an integer" once a session had ever completed a
backfill. Fixed by passing raw Python dicts to cast() instead, mirroring the
working pattern already used in update_collection_internal_metadata.
Also adds src.deriver.scope_backfill.tracked_db to conftest's tracked_db
patch list — the module was missing from that per-import-site allowlist, so
its DB work ran against the real configured database instead of the
isolated per-test database.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
* fix(crud): preserve cache invalidation across get_or_create retry
`get_or_create_peers` and `get_or_create_scopes` mutate existing rows, then
insert new ones inside `db.begin_nested()`. When a concurrent writer creates
one of those rows first, the insert raises IntegrityError and the function
retries.
`begin_nested()` autoflushes the pending UPDATEs *before* opening the
savepoint, so the rollback neither undoes them nor expires the now-clean ORM
state. The retry then compared already-updated values, found no change, and
dropped those peers from `changed_peers` — skipping the cache purge while the
row change committed anyway, leaving entries stale until the 300s TTL.
Carry the mutated names into the retry via `_pending_invalidation` so the
purge cannot be lost.
The scopes facade mirrors `get_or_create_peers`, so both copies carried this.
The peer path is pre-existing and runs on every message ingest.
Also add the missing /v3 prefix to `_SCOPES_ROUTE_GUIDANCE`, which pointed
callers at a 404.
Adds tests/crud/test_get_or_create_retry_invalidation.py, which drives a real
racing session and fails without this change.
* fix(scopes): make scope identity unforgeable, unblock non-pattern peer names
Three coupled changes to the scopes facade.
1. `PeerCreate` no longer gates internal lookups. It exists to validate a new,
user-supplied peer id at the API boundary, but crud used it as a DTO for
names that already exist, so any name outside RESOURCE_NAME_PATTERN raised a
raw pydantic ValidationError — which is not a HonchoException, so it fell
through to the catch-all handler as an HTTP 500. Adds `PeerSpec` (same
fields, no charset pattern) as `PeerCreate`'s base, widens
`get_or_create_peers` to accept it, and changes `get_peer` to take a plain
str. All 13 construction sites converted; the create route keeps full
validation.
This unbreaks the Dreamer: DreamScheduler passes `collection.observer`
straight into the specialist preflight, and scope peers have
`observe_others=true`, so every `(scope.x, peer)` dream died there — the
feature scopes exist to enable. It also fixes a pre-existing bug unrelated
to scopes: a peer named `alice.smith` (legal before d429de0e5338, which
validated names by length alone) 500s on message create, session peer add,
and peer update.
2. The `kind` flag moves from `configuration` to `internal_metadata`.
`configuration` is user-writable — `PeerCreate`/`PeerUpdate` accept a
free-form dict and `update_peer` replaces it wholesale — so a legitimate
`{"observe_me": true}` update silently dropped the flag, and a forged
`{"kind": "scope"}` injected an ordinary peer into `POST /scopes/list`.
`internal_metadata` appears in no API schema. `observe_me: false` stays in
`configuration`, where it belongs.
3. Scope identity requires prefix AND flag, via `is_scope_peer()` and
`scope_peer_clause()`. Neither half is forgeable: the prefix sits outside
RESOURCE_NAME_PATTERN, `internal_metadata` is unreachable. Usage-site guards
become flag-based so a legacy peer merely occupying the namespace keeps
working rather than 422-ing on its own traffic; peer create and update stay
name-based, since those must stop new names entering the namespace.
`update_peer` now returns 422 instead of 500.
Also swaps the reserved prefix from `scope__` to `scope.`: `_` is inside
RESOURCE_NAME_PATTERN, so any tenant could already own a `scope__x` peer.
No DB migration — `internal_metadata` already exists on `peers`, and no scope
peers exist in any deployment yet.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
* fix(scopes): validate peer names on create, close namespace squatting and upsert race
Addresses three review findings against 48047a6a.
1. `PeerSpec` let API callers create invalid and reserved-prefix peers.
Widening `get_or_create_peers` to accept a pattern-free schema fixed the
lookup 500s but also removed validation from the *insert* path, and
request-controlled names reach it via message authors, session peer maps, and
the chat observer path — none of which carry a charset pattern of their own.
Confirmed: `POST /sessions/{id}/messages` with `peer_id: "scope.x"` returned
201 and minted an unflagged squatter, after which `POST /scopes {id: x}` was
permanently 409-blocked — namespace denial of service by any caller able to
post a message. `peer_id: "not a valid name!@#"` was likewise created.
Fixed by validating only names about to be INSERTed
(`_validate_new_peer_names`), so already-existing names — legacy dotted
names, scope peers — still resolve without a spurious 422. That keeps the
Dreamer fix intact, since it reads through `get_peer`.
2. Existing reserved-prefix squatters could not be updated. The name-based guard
on `PUT /peers/{peer_id}` refused every `scope.` name, contradicting the
invariant that an unflagged squatter stays a normal peer. Now flag-based, so
behavior is three-way: a real scope is refused, an existing unflagged peer
updates, and a missing reserved-prefix name is refused by (1) rather than
minted.
3. Scope checks raced with get-or-create and the membership upsert. The
route-level guards run before peers are resolved, so a scope created
concurrently in that window would be attached by the generic path with a
default `SessionPeerConfig()`, clobbering its observer membership config.
Adds `_reject_resolved_scope_peers`, which runs on the resolved rows in the
same transaction as the upsert — no window, no extra query. The early checks
stay for better error messages.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
* fix(scopes): guard scope membership config, move checks to the mutation point
Addresses a second review pass against 10655792.
1. Scope membership configuration was directly user-mutable.
`PUT /sessions/{id}/peers/{peer_id}/config` had no scope guard at all, and
`crud.set_peer_config` resolved the peer only to discard the row. Confirmed:
posting `{"observe_others": false, "observe_me": true}` for a scope returned
204 and persisted, which silently stops all fan-out into the scope and makes
Honcho form a representation *of* a scope — neither of which is reachable
through the facade. Deterministic, no race required. Now checked on the row
`get_peer` already returns, so it costs nothing and cannot race.
2. Empty and over-long names were still 500s. Removing the charset pattern from
`PeerSpec` fixed one trap but left its length bounds, and request-bound peer
names carry no length limits of their own — so `peer_id: ""` or a 513-char
name reached `PeerSpec(...)` and raised a raw pydantic ValidationError that
the catch-all turned into a 500. `PeerSpec` now carries no constraints at all
(matching its documented purpose) and every rule for a new name lives in
`_validate_new_peer_names` on the insert path.
3. Resolved-row protection generalized. The previous pass applied it only to
membership upserts, leaving check-then-use windows elsewhere: peer update
could have a concurrently-created scope's configuration replaced wholesale
(create-path validation does not fire for a peer that now exists), the chat
observer get-or-create could resolve a fresh scope as its observer, and the
generic session-peer removal could silently detach a scope from its sessions.
Each now inspects the resolved peer immediately before acting; the redundant
name-level guard on the update route is dropped in favor of the race-free one.
`remove_peers_from_session` grows an internal `_allow_scope_peers` flag because
the scopes facade ends membership through that same path and must not be blocked
by its own guard.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
* test(scopes): enumerate every peer-touching route against a scope policy
Three review passes each found the same class of defect: a route nobody had
checked, rather than logic that was subtly wrong. One of them — `PUT
/sessions/{id}/peers/{id}/config`, which let any caller set a scope to
`observe_others=false` and silently stop all fan-out into it — predated this work
entirely, because the guardrail set was assembled guardrail-by-guardrail instead
of derived from the route list. Sampling review cannot close that kind of gap;
enumeration can.
Derives every route through which a peer name can reach the system and requires
each to be classified as GUARDED or EXEMPT-with-a-reason, so a newly added
peer-touching route fails the suite until someone classifies it. Detection is the
union of path shape and a walk of the dependant tree (including sub-dependency
`Form(...)` params and nested request-body models), because neither signal alone
suffices: parameter names miss `POST /sessions/{id}/peers`, whose peer names are
dict keys, and path shape misses `messages/upload`, whose `peer_id` arrives as a
form field behind a parser dependency.
Both invariants are then asserted behaviorally, by calling the routes rather than
inspecting annotations — the guards deliberately live in crud, which is what makes
`messages/upload` guarded for free via `crud.create_messages`:
- a real scope is refused on all 11 guarded routes, and the rejection must name
the scope, so an unrelated 422 (a malformed body) cannot pass the assertion;
- an *unflagged* peer merely occupying the reserved namespace is unaffected. That
half regressed once already when `update_peer` used a name-based check.
Mutation-tested all three failure modes: disabling the `set_peer_config` guard
fails the guarded test naming that route; regressing `update_peer` to name-based
fails the squatter test; adding an unclassified peer route fails the enumeration.
Covers the HTTP surface only. Peer names also reach the system through the
deriver, dreamer, and queue, which have no route table to enumerate — noted in
the module docstring rather than implied to be covered.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
* fix(scopes): refuse a scope in every observed position; enumerate per position
Addresses a fourth review pass against 62681e4d. The headline finding is that the
previous commit's enumeration test had the wrong *model*, not a missing entry.
1. Manual conclusions could create knowledge about a scope. `POST /conclusions`
validated only that observer_id and observed_id exist, so a scope as
`observed_id` persisted a conclusion about a peer carrying observe_me=false and
created an (observer, scope) collection for it. Confirmed: 201, and it read
back. `POST /schedule_dream` had the same hole via `observed`.
The fix is positional, because the invariant is:
A scope may be an OBSERVER. A scope may never be OBSERVED.
A scope as `observer_id` is how scoped conclusions are stored and must keep
working (verified still 201); as `observed_id` it is now refused. Same split
applied to schedule_dream `observed`, the peer-card `target` (which also covers
a scope's self-card, since target-omitted collapses observed to peer_id), and
session-context `peer_target`.
2. Chat target and both representation roles kept check-to-use races. Only the
chat path-level observer was re-checked on its resolved row; the target was
checked by name and then resolved without inspecting scope identity. Both are
now checked at the dialectic preflight, where observer and observed are already
resolved — an absent name has already failed by then, and an existing squatter
cannot retroactively become a scope.
3. Generic membership removal was still racy. The adjacent SELECT narrowed the
window but could not close it under READ COMMITTED. The UPDATE now carries its
own correlated NOT EXISTS against scope_peer_clause(), so Postgres evaluates
the exclusion as part of the statement and a scope committed after the advisory
check still cannot be detached.
4. New-name validation ran after the name reached Postgres. A NUL byte passed the
request schemas and PeerSpec, then raised psycopg.DataError inside the lookup —
a 500. Values that cannot correspond to a stored row by construction (NUL
bytes, over-length names) are now refused before the query.
(Over-length names already returned 422; only the wasted query was real there.)
The enumeration test is rekeyed from (method, path) to (method, path, position).
A binary per-route verdict cannot express finding 1 at all: `POST /conclusions` is
one route with two positions and opposite verdicts. Detection widens to observer /
observed / target / peer_target / peer_perspective, which surfaced four routes the
previous version never saw — conclusions, schedule_dream, queue/status, and
session context.
Also registers `src.routers.workspaces.tracked_db` in the conftest patch list; the
new guard there would otherwise have run against the real configured database
instead of the per-test one.
Mutation-tested: disabling the conclusions observed-guard fails the positional
test naming that position; adding an unclassified `observed_id` param fails
enumeration.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
* fix(scopes): refuse future scopes in observed positions, preserve scope membership
Addresses a fifth review pass against 14136e5b. All six findings reproduced
locally before fixing.
1. High — generic peer replacement removed scope memberships.
`set_peers_for_session` soft-deleted every active SessionPeer row, and the
request-level guard only inspected names *present* in the replacement map. A
caller detached a scope by simply omitting it, never naming it — so no
request-level guard could ever see it. Reproduced: scope sessions went
['<id>'] -> [] on a 200. The exclusion now lives in the UPDATE itself
(correlated NOT EXISTS against scope_peer_clause), so replacement means
"replace ordinary peers" regardless of request contents or concurrent creation.
2. High — peer cards could be pre-seeded for future scopes.
`set_peer_card` resolves only the observer and writes a JSONB key derived from
an unchecked observed name, and the route guard rejected only *existing*
flagged scopes. Reproduced: PUT card with target=scope.<missing> returned 200,
creating that scope then returned 201, and the card described the real scope.
3. High — dreams could be queued for future scopes.
The route checked `observed` in a read-only session that closed before
`enqueue_dream`, and a missing reserved name passes any is-it-a-scope check.
Reproduced: 204 with observed=scope.<missing>.
2 and 3 share a root cause, so they share a fix: a new `reject_scope_observed`
that is stricter than `reject_scope_peers` in exactly one case — a *missing*
reserved name is refused, because nothing on these paths creates the peer, so
nothing else would ever catch it. Existing unflagged squatters still pass.
Both guards moved to the mutation point: card validation into
`crud.set_peer_card` (same transaction as the JSONB write, so Dreamer and
agent-tool callers are covered), dream validation into `enqueue_dream` (same
transaction as the queue insert). The redundant route-level checks are dropped
rather than left as weaker duplicates.
4. Medium — prefixed NUL names still reached PostgreSQL.
`reject_scope_peers` filtered for the reserved prefix and sent matches to a
text comparison, so "scope.future\0name" raised psycopg.DataError — a 500.
Both guards now share `_reserved_name_candidates`, which materializes the input
once and rejects impossible values before any SQL. Materializing matters
independently: the message-author path passes a generator, and validation
iterates separately from the prefix filter, so a generator would be
half-consumed. `_reject_impossible_peer_names` now takes a Collection so the
type checker enforces that.
5. Medium — representation kept a check-to-use race.
The previous commit claimed both representation roles were rechecked after
resolution; that was wrong — only the dialectic preflight got that check, and
the representation route never goes through it. It now opens one short
read-only session *after* the embedding call, checks both positions, and passes
that same session to `get_working_representation`, so no connection is held
across external work and a scope committed later cannot have conclusions in the
collection being read.
6. Low — policy coverage was not exhaustive. `sender_id` reaches CRUD as
`observed` but was missing from the detected parameter set. ALLOW cases could
also not carry builders, so the suite never proved the other half of the
contract — that legitimate scope *observers* keep working, which a guard
rejecting scopes everywhere would satisfy. Both fixed; observer positions on
conclusions, dreams, cards, session context and queue status are now asserted
behaviorally.
Deliberately not implemented: the scope-creation backstop scanning for
pre-existing card keys and queue items naming a future backing peer. Reasoning is
recorded in `get_or_create_scopes` — no new such state can be created now, any
pre-existing row is coincidental since `scope.` was never a meaningful namespace,
the consequence is inert, and detecting card keys means a full table scan per
scope creation.
Mutation-tested each new guard: removing the replacement exclusion fails both
membership-preservation tests; weakening either observed guard to existing-only
fails the pre-seeding tests.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
* fix(scopes): exclude scope memberships from the session observer limit
Scope memberships carry observe_others=true, so every scope counted against
SESSION_OBSERVERS_LIMIT (default 10) — capping scopes-per-session at the limit
minus the session's real observers, and reporting the failure as
`400 Cannot create session <name> with 11 observers. ... Observers are peers
with 'observe_others' set to true.` on a membership call. Wrong on three counts:
the ceiling is undocumented and contradicts RFC §5.1 ("sessions belong to any
number of scopes"), the message describes session creation, and it leaks the
word "observer" through a facade whose entire job is hiding observers (RFC
goal 5). The limit exists to bound per-observer deriver fan-out for real peers;
a scope costs document rows, not LLM calls (RFC §5.2), so it does not belong in
that budget.
Excluded from both halves of the check in `_get_or_add_peers_to_session`: the
incoming names via a flag-based lookup, existing memberships via a correlated
NOT EXISTS on `scope_peer_clause()` — the same pattern the replacement and
removal paths already use, so the exclusion holds regardless of concurrent
scope creation. The early `count_observers_in_config(session.peer_names)` check
in `get_or_create_session` is left alone: `peer_names` cannot contain a scope,
and `scopes` is a separate field.
`reject_scope_peers` is split into a `scope_peer_names()` query helper plus a
two-line raiser so the observer count reuses the authoritative name-AND-flag
predicate instead of growing a third copy of it. Still costs nothing on the
common path — no reserved-prefix name in the input means no query at all.
Also caps `SessionCreate.scopes` at 100, matching `ScopeSessionsAdd.session_ids`.
This belongs in the same commit: the observer limit was the only thing bounding
that list, so removing it turns an unbounded `scopes` array into a peer row and
a membership row per element, committed — the single-request path to the
cardinality anti-pattern RFC §8 warns about. Partly answers OQ6: no per-session
cap, 100 per request.
Tests: a session joins SESSION_OBSERVERS_LIMIT + 2 scopes through both the
facade and session creation; real observers over the limit still 400, so the
carve-out cannot quietly disable the limit; 101 scopes is a 422.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
* fix(scopes): skip semantic retrieval when the embedding precompute failed
Addresses three open review comments.
1. Major — the representation read could embed inside its DB session. The
route's precompute is suppressed, and both
`RepresentationManager.get_working_representation` and
`crud.query_documents` fall back to embedding when a query arrives without
one, so a failed precompute meant an external call inside the read session
this branch opens for the scope re-check — the connection-holding rule the
route's own comment claimed to satisfy. The innermost fallback also only
catches ValueError, so a provider outage surfaced as a 500. The semantic
query is now passed only when an embedding exists, degrading to
derived+recent retrieval. (`crud.query_documents` embedding inside a caller's
session predates this branch and is left alone.)
2. Minor — `test_resolved_scope_peer_rejected_at_membership_upsert` described a
race it does not perform. It creates an already-flagged scope and calls crud
directly; the unflagged → flagged transition is not simulated. Docstring now
says what the test actually pins.
3. Minor — `test_empty_replacement_preserves_scope_membership` asserted only
half its docstring. It passed if the empty PUT left every ordinary
membership intact; now asserts the ordinary peer's left_at is set.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
* fix(scopes): close auth and observed-position gaps, paginate membership
Review response for #884.
Security:
- gate `SessionCreate.scopes` behind a workspace-level key; the session-create
route is self-authorizing, so a peer- or session-scoped token could mint scope
peers and join sessions to scopes it had no access to via `POST /scopes`
- refuse a reserved-but-nonexistent name in two observed positions that used the
permissive guard: chat `target` and session-context `peer_target`. Both let a
caller act on `scope.X` before it existed, then create the scope
Facade:
- exclude scope peers from `GET /sessions/{id}/peers` and refuse the membership
-config read for a real scope, matching its write side
- replace `GET /scopes/{id}/sessions` with `POST /scopes/{id}/sessions/list`
returning `Page[Session]`; the add route now returns 204. Membership was
unbounded on both, while every other list surface paginates
- rename `crud.get_scope` to `get_scope_or_raise`
Tests:
- add a missing-name axis to the route-policy table (`Case.refuse_missing`), which
is what surfaced the two guard gaps above
- delete 14 hand-written tests the table now enumerates; 52 -> 39 functions in
test_scopes.py with more cases covered
- tighten the squatter assertion from `!= 422` to `< 400`, which was passing on 5xx
- assert the FastAPI-internals traversal still derives positions, so a framework
upgrade can't silently empty the suite
Docs:
- drop internal ticket and RFC references from the published OpenAPI descriptions
and surrounding comments; state the behavior instead
- move implementation reasoning out of the `PUT /peers/{id}` docstring, which
FastAPI publishes, into a comment
* test(scopes): assert exact statuses for permissive missing-name cases
Follow-up review pass on #884.
- add `Case.missing_status` so a permissive missing-name position asserts the
status it should actually get (404, or 200 for the no-op removal) instead of
`!= 422`, which also passed on a 5xx — the same hole already closed in the
squatter assertion
- require it whenever `refuse_missing` is False, and require its absence when
True, so the policy table can't drift from the assertion
- repoint a stale allow-reason at POST /scopes/{scope_id}/sessions/list; the GET
it named was removed
- document the membership list's ordering under `reverse`
* chore: clean up stale docstring language
* fix: don't backfill a session that left the scope
scope_backfill and scope_removal carry different work-unit keys, so
nothing orders them: a removal enqueued right after the add — or one
that lands while the backfill is embedding — sweeps the scope before
the copies exist, leaving a departed session's documents live in the
scope forever.
_run_backfill now re-checks SessionPeer membership inside the write
transaction and returns None; process_scope_backfill then skips both
the dream enqueues and the status write, so a skipped backfill can't
resurrect the status entry removal just cleared.
Adds coverage for the skip, the NULL-embedding re-embed path, and the
failed-status write. Handler-driven tests now stand up the membership
row the guard requires.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
---------
Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
Aakash Kattelu
Vineeth Voruganti