The file had drifted four indexes behind c2-server, so the 2026-08-23 deploy
offered to delete four live indexes and then added ASC copies of two that
already existed as DESC. Reconciled against gcloud's actual list.
Adds the two backend indexes that were live but undeclared and are genuinely
in use -- calls(status, ended_at) for recorrelation_sweep's ended-call scan and
calls(system_id, ended_at) for vocabulary_learner. Deleting either would have
broken a background loop with no frontend symptom.
Declares every index ASCENDING. Firestore scans an index in either direction,
so org_id+started_at ASC already serves the orderBy(started_at, 'desc') that
every frontend hook actually asks for; a matched ASC/DESC pair is one index of
pure write amplification on every call document. The three duplicates now left
undeclared are named in the file header so the next deploy's interactive
delete prompt has a documented answer instead of a guess.
Refs server-26#33.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
SAAS_PLAN.md's review found the actual finding underneath "no multi-tenancy":
drb-frontend reads Firestore directly from the browser (every hook in lib/
does onSnapshot(collection(db, ...))), so drb-c2-core/app/internal/auth.py
is never in that read path at all. Whatever rules were protecting calls,
incidents, and nodes had been hand-set in the Firebase console -
unversioned, unreviewed, and invisible to anyone reading this repo.
Added infra/firestore/firestore.rules: deny-by-default, with every
tenant-scoped collection (nodes, systems, calls, incidents, alert_events,
alert_rules) gated on resource.data.org_id == request.auth.token.org_id, an
org_id claim that doesn't exist yet - the next commits add it. All client
writes stay denied; c2-core's admin SDK bypasses rules and remains the sole
writer, which was already the architecture. Secret-bearing collections
(node_keys, the new enrollment_tokens) are denied to clients outright rather
than org-scoped, since nothing should ever hand a raw credential to the
browser. trips/trip_events keep their current "signed-in users can read"
shape rather than being pulled into org scoping - that feature isn't
tenant-scoped in this pass (see B7), just hidden from non-founding-org users
in the UI.
Added infra/firestore/firestore.indexes.json for the composite indexes the
org_id-scoped queries will need once the frontend hooks add the equality
filter alongside their existing orderBy/range/array-contains clauses -
without these, those queries fail at runtime with a FAILED_PRECONDITION
"index required" error rather than at review time.
Also extended internal/firestore.py's collection_where() with optional
order_by/limit_to/start_after params (SAAS_PLAN.md item 1, a stated
prerequisite for B2: scoped queries need to stay ordered and bounded, and
the existing helper could only do unordered full-collection scans).
array_contains needed no new code - it was already a pass-through op string
to FieldFilter.
None of this is live yet. Deploying rules/indexes is a manual step
(firebase deploy --only firestore:rules,firestore:indexes --project
<project-id>, from infra/firestore/) - nothing in CI does this. Until it
runs, the console-configured rules are still what's actually enforced, and
these rules reference an org_id claim no token carries yet. Deploy this
alongside (not before) the org_id-stamping commits that follow, or every
read breaks for the current single-org deployment.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>