Adds automated encrypted backups of the live SQLite file. Closes the
'no backup automation' gap called out in the completeness review
(docs/reviews/2026-06-20-cyclone-completeness-review.md §3.1 #3) and
gives the SP16 MFT scheduler a recovery path when the MFT pipeline
loses days of inbound 999/277CA work in a single crash.
Architecture
------------
- AES-256-GCM with PBKDF2-HMAC-SHA256 (200,000 iters, 16-byte salt)
- Online backups via SQLite's .backup() API — no app downtime
- Salt + passphrase persisted to macOS Keychain (separate accounts
backup.passphrase + backup.salt) so the key is reproducible across
processes
- Two-step restore (initiate → confirm) with a one-shot 64-char hex
token; the second call disposes + rebuilds the engine only if the
token matches within a 5-minute TTL
- Tamper-evident audit chain (SP11) — db.backup_created,
db.backup_failed, db.backup_pruned, db.backup_restored,
db.backup_passphrase_set
- BackupService + BackupScheduler + module-level singletons
- 8 admin endpoints + 6 CLI subcommands
- Auto-start opt-in via CYCLONE_BACKUP_AUTOSTART=true; default
interval 24h, default retention 30 days
- Fallback posture: if no separate passphrase is set and SQLCipher
is enabled, the key is derived from the SQLCipher DB key with a
fixed salt + WARNING log (degraded but never plaintext)
New modules
-----------
- cyclone.backup — PBKDF2, AES-GCM, sidecar format
- cyclone.backup_service — create_now / list / verify / restore / prune / status
- cyclone.backup_scheduler — async tick loop with audit hooks
New surface
-----------
- 8 admin endpoints under /api/admin/backup/*
- 6 CLI subcommands under cyclone backup (init-passphrase, create,
list, verify, restore, prune, status)
- Migration 0012_backups.sql + DbBackup ORM
- store.add_backup_pending()
Tests
-----
- 14 unit tests in test_backup_crypto.py (key derivation, encrypt/
decrypt round-trip, tampered ciphertext, wrong passphrase, sidecar
round-trip, filename format)
- 19 tests in test_backup_service.py (create/list/verify/restore/
prune/status, error handling, fallback key, module singleton)
- 14 API tests in test_api_backup.py (all 8 endpoints + scheduler
endpoints, two-step restore, error responses)
- 10 tests in test_backup_scheduler.py (tick / start / stop /
audit / coalescing / module singleton)
- 5 CLI tests in test_cli_backup.py (create / list / verify /
restore confirm prompt / prune confirm prompt /
init-passphrase minimum-length check)
Total new tests: 62. All pass. Full backend suite: 833 passed,
9 skipped (gitignored prodfiles), 1 warning.
Design doc: docs/superpowers/specs/2026-06-21-cyclone-encrypted-backup-design.md
README: new 'Encrypted Backups (SP17)' section, SP17 entry in
Roadmap, retention default documented in §Project layout.
Adds an asyncio-based background scheduler that polls the Gainwell
MFT inbound path, downloads new files, and routes them through the
appropriate parser (999 / 835 / 277CA / TA1). Idempotent (re-ticks
and restarts skip already-processed files via the new
processed_inbound_files table). Crash-safe (per-file try/except so
one bad file doesn't stop the loop).
Lifespan auto-configures from the seeded dzinesco clearhouse's SFTP
block; auto-start is opt-in via CYCLONE_SCHEDULER_AUTOSTART.
Five admin endpoints added:
GET /api/admin/scheduler/status
POST /api/admin/scheduler/start
POST /api/admin/scheduler/stop
POST /api/admin/scheduler/tick
GET /api/admin/scheduler/processed-files?status=&limit=
20 new tests (15 unit + 5 API).
Self-review nits from the router-split commit:
- All four new files lacked a trailing newline (PEP 8 / POSIX).
- acks.py was lazily importing ParseResult999 / serialize_999 inside
get_ack_endpoint. Hoist to module-level — there's no import cycle
(acks.py does not import from cyclone.api), so the imports are safe
to do once.
No behavior change. Targeted tests (test_acks + test_health + test_api_gets)
still pass 41/41.
Step 2 (first half) of the architecture satisfaction loop. api.py
shrank from 2595 to 2452 lines (-143) by extracting three read-only
resource groups into cyclone.api_routers:
- health.py: GET /api/health (1 endpoint)
- acks.py: GET /api/acks, GET /api/acks/{ack_id} (2 endpoints)
- ta1_acks.py: GET /api/ta1-acks, GET /api/ta1-acks/{ack_id} (2 endpoints)
Each router owns its endpoint bodies + the small UI-shape helper that
goes with them (_ack_to_ui, _ta1_to_ui, _serialize_ta1_from_row). The
helpers stay in the router file rather than being shared because each
is only used by its own endpoints.
api.py now ends the app-wiring section with three include_router()
calls. The new package is named cyclone.api_routers (not
cyclone.api.routers) to avoid the Python package-vs-same-named-module
ambiguity that would shadow the existing cyclone.api module.
Verifies: 41 targeted tests (test_acks, test_health, test_api_gets)
pass, full pytest is 8 failed / 735 passed / 16 skipped — identical
to clean main baseline. Live curl against the running server:
GET /api/health -> 200, GET /api/acks -> 200, GET /api/ta1-acks -> 200.
See /tmp/refactor-cyclone.md for the full plan.
Adds in-place key rotation for the encrypted DB at rest (HIPAA
sec.164.308(a)(4) - periodic key rotation).
- db_crypto.rotate_db_key(): opens with old key, issues PRAGMA rekey,
reopens with new key, verifies schema survived (table-count sanity).
- db_crypto.generate_db_key(): fresh 256-bit CSPRNG hex key.
- db_crypto.fingerprint(): SHA-256[:8] of a key, for the operator to
compare across rotations.
- db.dispose_engine() + db.reinit_engine(): SP15 plumbing. The
rotation endpoint disposes the pooled connections (SQLCipher
refuses to rekey while another connection holds the file), runs
the rekey, then rebuilds the engine with the new key from the
Keychain.
- API: POST /api/admin/db/rotate-key with module-level threading.Lock
to serialize rotations. 400 when encryption not enabled, 409 when
a rotation is already in flight, 503 on rekey or Keychain failure
with a reason that tells the operator what to do next.
- Engine uses NullPool when SQLCipher is enabled: the default
QueuePool returns connections to a shared queue that any thread
can pull from, which breaks SQLCipher's thread affinity. NullPool
trades connection reuse for thread safety, the only correct
behavior under FastAPI's per-request threadpool.
- Audit event db.key_rotated with old/new fingerprints and
table_count, written after the engine is rebuilt so the new key
proves it can take new writes.
- previous key is stashed to a second Keychain account so the
operator can roll back if the new key turns out to be broken.
Tests:
- test_db_crypto.py: 12 new tests for generate/fingerprint/rekey
mechanics (5 require SQLCipher at runtime; skipped otherwise).
- test_api_rotate_key.py: 6 new tests for endpoint wiring
(encryption-required, Keychain update, audit event, rekey-failure
rollback, Keychain-write-failure 503, concurrent-rotation 409).
First checkpoint of the architecture satisfaction loop. Cyclone's api.py
was a 2281-line god-module with 14 cross-cutting helpers inlined next
to the @app route declarations. This commit moves them to a dedicated
cyclone.api_helpers module:
- NDJSON wire format: ndjson_line, ndjson_stream_837, ndjson_stream_835,
ndjson_stream_list.
- Content negotiation: client_wants_json, wants_ndjson.
- Strict / raw_segments rewrites: strict_rewrite_837, strict_rewrite_835,
drop_raw_segments_837, drop_raw_segments_835.
- Validation probes: has_claim_validation_errors, has_835_validation_errors.
- Live-tail generator: tail_events, heartbeat_seconds, utcnow.
api.py re-imports them under the original underscore-prefixed names so
every route call site stays unchanged. claims_stream, remittances_stream,
and activity_stream remain exposed at cyclone.api (test_api_stream_live
imports them directly).
Verifies byte-identical NDJSON wire format, content negotiation rules,
and the tail_events async-generator semantics (deliberately polls the
EventBus queue rather than awaiting its async iterator, so heartbeats
don't poison the bus subscription).
Live-tested: GET /api/health, /api/claims, /api/remittances,
/api/activity, /api/acks, /api/providers, /api/inbox/lanes,
/api/inbox/payer-rejected/acknowledge, and the /api/claims/stream
NDJSON tail all return expected codes / payload.
Backend pytest: 29 failures identical to baseline (pre-existing
secrets env, serialize_837, db_crypto env, prodfile env failures),
700 passed. Frontend npm test: 357/357 passing.
See /tmp/refactor-cyclone.md for the full checkpoint log and the plan
for the next step (splitting api.py routes into FastAPI APIRouters).
Autoreview: /tmp/grok-review-local.md (0 bugs, 1 suggestion, 4 nits —
all addressed: dead asyncio/os imports removed, dead Any import
removed, duplicate utcnow import dropped, trailing newline added).
Closes the gap between the SP10 backend (5 lanes) and the SP6
frontend (4 lanes). The Payer-Rejected lane (277CA STC A4/A6/A7)
is now rendered alongside Rejected/Candidates/Unmatched/Done,
with an Acknowledge bulk action that drops claims from the
working surface without erasing the original 277CA rejection
event (audit log stays intact, SP11).
Backend:
* Migration 0010: add payer_rejected_acknowledged_at +
payer_rejected_acknowledged_actor columns + partial index.
* db.py: surface the two new columns on the Claim model.
* inbox_lanes.py: filter acknowledged claims out of the
payer_rejected lane; expose the new fields on the row payload
for forward-compat (e.g. a future 'Recently acknowledged' view).
* api.py:
- POST /api/inbox/payer-rejected/acknowledge
Bulk-acknowledge. Idempotent. Returns transitioned /
already_acked / not_found / not_rejected counts so the UI
can show '3 of 5 were already acknowledged' on a noop bulk.
Writes a 'claim.payer_rejected_acknowledged' event to the
SP11 hash-chained audit log.
- GET /api/inbox/export.csv: accept 'payer_rejected' lane.
* test_acks.py: bump user_version assertion to 10.
* test_lane_filter_acknowledged.py: 4 tests for the lane filter
and forward-compat row payload.
* test_payer_rejected_acknowledge.py: 6 tests for the endpoint
(happy path, idempotency, no-op on non-rejected, missing
ids, 400 on empty, audit-log wiring + chain integrity).
Frontend:
* lib/inbox-api.ts: add payer_rejected to InboxLanes, add
acknowledgePayerRejected(), update exportInboxCsvUrl union.
* hooks/useInboxLanes.ts: add payer_rejected to initial state.
* hooks/useInboxLanes.test.ts: add payer_rejected to mocks.
* components/inbox/BulkBar.tsx: add 'payer_rejected' lane with
Acknowledge action (no Resubmit, no Dismiss — payer-rejected
is not eligible for either).
* components/inbox/BulkBar.test.tsx: add payer_rejected test.
* pages/Inbox.tsx: render the 5th lane, hook up onAcknowledge,
include payer_rejected in the needEyes count.
* pages/Inbox.test.tsx: 3 new tests (5-lane render, need-eyes
count, acknowledge action hits the right endpoint).
* components/inbox/InboxHeader.tsx: doc comment now explains
why payer_rejected rolls up into need-eyes.
Pre-existing typecheck warnings in BulkBar.test.tsx / InboxRow
.test.tsx / Lane.tsx / download.test.ts are unchanged from
main — not touched here.
Test counts: backend 724 -> 734 (+10). Frontend 350 -> 354 (+4).
Replace SftpClient stub write_file/list_inbound/read_file
implementations with real paramiko SSHClient + SFTPClient
calls. The public API (SftpClient.write_file, list_inbound,
read_file, get_secret) is unchanged from SP9 — same signature,
same return types — so the API layer needs no changes.
Real-mode behavior:
* _connect() returns a context manager yielding (ssh, sftp);
closes both on exit. Lazy-imports paramiko so the stub-only
test path doesn't need the dependency.
* Auth resolves from SftpBlock.auth: password_keychain_account
(MFT model) or key_file + optional key_passphrase_keychain_account.
Missing Keychain entries fail loud (RuntimeError) rather than
silently attempting empty-password auth.
* write_file: opens sftp.open(remote, 'wb') and writes bytes;
mkdirs the parent dir (idempotent — MFT pre-creates FromHPE/ToHPE).
* list_inbound: listdir_attr + per-file download into local
staging cache; skips directory entries (0o040000 mask).
* read_file: download via shutil.copyfileobj into BytesIO.
Stub mode is unchanged. AutoAddPolicy for first-time MFT host
fingerprint; operator should pin the key for production.
Adds tests/test_sftp_paramiko.py: 9 tests covering
* stub still works
* real-mode connect builds correct paramiko call from
password_keychain_account, raises on missing Keychain,
raises on missing auth config, raises on STUB_SECRET
* write_file opens 'wb' on the right path and writes bytes
* list_inbound translates attrs into InboundFile records and
caches files locally; skips dirs
Removes 2 obsolete tests in test_sftp_stub.py that expected
SP13-mode to raise NotImplementedError.
pyproject.toml: new optional 'sftp' extra (paramiko>=3.4,<6).
- New cyclone.db_crypto module:
* is_sqlcipher_available() — capability check
* is_encryption_enabled() — Keychain key + sqlcipher3 present
* get_db_key() — reads 'cyclone.db.key' from Keychain
* make_sqlcipher_connect_creator(url, key) — SQLAlchemy creator
- db._make_engine() now switches to SQLCipher when key is present
- pyproject.toml: optional 'sqlcipher' extra (sqlcipher3>=0.6,<1)
- Fallback: without Keychain key, DB stays plain SQLite (no surprise
behavior for operators who haven't set up encryption yet)
- Verified: encrypted file is unreadable as plain SQLite, wrong key
raises on first query, migrations + ORM work transparently
- HIPAA §164.312(a)(2)(iv) compliance note in docs
Tests: 705 -> 717 (12 new for SQLCipher). All 717 backend tests pass.
Add an optional ``?download=true`` query param to
``POST /api/inbox/rejected/resubmit`` that returns the same operation
result as a ZIP archive of regenerated 837P files (one
``claim-{id}.x12`` per successfully resubmitted claim) rather than the
JSON envelope.
Why: operators who mass-resubmit rejected claims want to hand the
files straight to their clearinghouse; round-tripping through copy-
paste is error-prone.
Implementation notes:
* Uses ``serialize_837_for_resubmit`` so each X12 file in the bundle
gets a unique interchange/group control number (back-to-back
resubmits would otherwise collide on ISA13/GS06 = "000000001").
* Conflicts and missing ids are deliberately excluded from the ZIP
— the user already saw them in the JSON path on prior calls; the
download is the "give me the files I asked for" payload.
* Empty resubmit + download returns 200 with an empty ZIP so the UI
can still hand the user a downloadable artifact.
Tests (test_inbox_endpoints.py): 2 new tests covering the success
shape (one .x12 per accepted claim) and the conflict-exclusion
contract.
X12 835 SVC segment:
SVC01 = composite procedure
SVC02 = charge
SVC03 = payment
SVC04 = Unit or Basis for Measurement Code (UN, MJ, DA, ...)
SVC05 = Service Unit Count
The parser previously read SVC04 as the units count and SVC05 as the
unit type — backwards. On real 835s (and the canonical minimal
fixture), SVC04 carries the code 'UN' which fails Decimal parsing, so
the units always came out as None and the code string was assigned to
unit_type. SP7's line-level matcher couldn't compare units on the SVC
side against the claim side because of this.
- _consume_service_payment: SVC04 → unit_type, SVC05 → units count
- Default unit_type to 'UN' when only the count is present
- minimal_835.txt + unbalanced_835.txt: swap positions to match spec
- Add 2 regression tests (units-and-unit-type, default-unit-type-to-UN)
Returns the persisted ClaimOutput as a regenerated X12 837P file via
the new outbound serializer (Approach A — full rebuild from canonical
fields). 404 on missing claim, 422 if the stored raw_json cannot be
validated as a ClaimOutput. text/x12 content-type, attachment
disposition with the claim id as the filename.
3 tests:
- endpoint returns text/x12 attachment starting with ISA*
- 404 for missing claim id
- regenerated text round-trips back through parse()
- backend/src/cyclone/parsers/serialize_837.py — full-rebuild 837P serializer.
Emits envelope (ISA/GS/ST/SE/GE/IEA + BHT) + submitter/receiver/billing
provider/subscriber/payer hierarchy + editable segments (CLM/REF*G1/HI)
+ per-service-line LX/SV1/DTP*472/REF*6R — all from canonical
ClaimOutput fields.
Pivoted from spec §3.1 hybrid to full rebuild because ClaimOutput.raw_segments
only captures post-CLM segments (CLM, REF*G1, HI, LX, SV1 pairs) — not the
envelope or hierarchies. A pass-through approach cannot regenerate those
without expanding raw_segments in parse_837.py (out of scope for this SP).
- backend/tests/test_serialize_837.py — 36 tests covering envelope shape,
hierarchy segments, claim-level builders, service-line builders, edited-field
propagation, round-trip, custom sender/receiver IDs, and resubmit helper.
- backend/tests/test_prodfiles_smoke.py::test_claims_prodfile_round_trip —
every file in docs/prodfiles/claims/ (113 files) round-trips through
serialize_837 → parse_837_text with deep-equal ClaimOutput (modulo
validation, which is recomputed by the parser).
- docs/superpowers/plans/2026-06-20-cyclone-serialize-837.md — full plan
with amendment note documenting the Approach A pivot.
Per session convention, plan note about unrelated modifications to
parse_835.py / fixtures stashed separately.
manual_match previously only flipped the claim↔remit FK and the
claim state — it never ran line-level reconciliation, so manually-
paired claims surfaced empty line-reconciliation rows to the UI
and skipped CLP-level CAS aggregate recompute.
Refactor reconcile.run() to call a new per-pair helper
_reconcile_pair(session, claim, remittance) that:
- clears any existing LineReconciliation rows for the claim
(idempotent re-run; safe across manual_unmatch + manual_rematch
cycles that may pair the claim with a different remittance),
- reads 837 SV1 lines from Claim.raw_json and 835 SVC rows from
ServiceLinePayment,
- runs match_service_lines() and persists a LineReconciliation row
per side,
- recomputes Remittance.claim_level_adjustment_amount (CLP-level
CAS) and Remittance.adjustment_amount (total CAS).
manual_match now calls this helper after the FK is set and before
commit, mirroring the auto-match path. Reversals are skipped (they
don't have SV1↔SVC line pairs; per §7.3).
Tests (test_store_reconcile.py):
- test_manual_match_populates_line_reconciliation_rows: end-to-end
check that a manual pair writes the expected matched +
unmatched_837_only rows plus zero CAS aggregates.
- test_manual_match_idempotent_line_reconciliation: after
manual_unmatch + manual_rematch + inserting a CLP-level CAS row
directly, the claim has exactly two fresh LineReconciliation rows
(no duplicates) and the remittance aggregate reflects the new CAS.
Smoke tested end-to-end via TestClient: parse co_medicaid_837p.txt
+ co_medicaid_835.txt, auto-matcher skips (PCNs differ), manual
match via POST /api/reconciliation/match, then
GET /api/claims/{id}/line-reconciliation returns 2 rows and
GET /api/inbox/lanes shows matched_remittance.total_lines=2.
Note: matched_lines may be 0 on real 835 fixtures due to a
pre-existing parser bug in _consume_service_payment that swaps
SVC04 (units) and SVC05 (unit-of-measure) when reading units from
the segment. The SP7 strict-match criterion requires units parity,
so the misread produces None on the SVC side and strict-match
never succeeds. Surfaced as a follow-up; the SP7 work itself is
correct (line counts are computed and persisted).
Migration renumbered from 0005 to 0006 because 0005_create_ta1_acks.sql
(another agent's WIP, unmerged) already claims version 5. Bumping our
migration to version 6 avoids stepping on it; user_version will land
at 6 once both migrations run.
T7-T10 combined (single edit: all endpoints share a section).
- GET /api/inbox/lanes — four lanes in one call
- POST /api/inbox/candidates/{remit_id}/match — 409 on conflict
- POST /api/inbox/candidates/dismiss — session-scoped dismissed set
- POST /api/inbox/rejected/resubmit — 200 with conflicts list
- GET /api/inbox/export.csv?lane=<lane> — streams CSV
Also adds module-level imports (db, Claim, ClaimState, Remittance,
csv, io, datetime) that the new endpoints need; cleans up the
duplicated local imports in the parse-999 SP6 T4 block.
T4 — calls apply_999_rejections inside /api/parse-999, then
publishes a claim.rejected event for each transitioned claim so
the Inbox live-tail refetches.
T3 — moves claims to ClaimState.REJECTED on 999 AK5 R/E/X.
- New module: src/cyclone/inbox_state.py
- New tests: tests/test_inbox_state.py (4 cases)
- Adds ORM mappings for rejection_reason / rejected_at / resubmit_count
/ state_changed_at on Claim (db.py) — these were added to the
schema by migration 0004 but not yet exposed to the ORM.
Adds:
- claims.rejection_reason, claims.rejected_at, claims.resubmit_count
- claims.state_changed_at (was missing, needed for Done-today lane)
- ix_claims_state_changed_at composite index
Also fixes the ClaimState count assertion in test_db_models.py
(7 → 8) to match the REJECTED enum value added in the previous
commit, and bumps the user_version expectation in test_acks.py
(3 → 4) for the same reason.
The store dedupes remittances by PCN. Refine the assertions:
- total_clps counts the raw CLP segments across all files (3374)
- unique_pcns counts distinct PCNs (persisted row count)
- Read claimId via the API response shape, not the SQLAlchemy attribute
Three related changes for real CO Medicaid data:
1. Drop UNIQUE(batch_id, patient_control_number) on claims and
UNIQUE(batch_id, payer_claim_control_number) on remittances. The X12
spec allows multiple CLM segments per 2000B subscriber loop and 835
ERAs can repeat a payer_claim_control_number for reversals. Claim/
remittance identity is provided by the primary key (claims.id = CLM01,
remittances.id = CLP01).
2. Add validator rule R835_MULTI_BPR warning for files with multiple BPR
segments (CO Medicaid split-payment pattern). The parser already sums
BPR02 paid_amounts; this surfaces the non-standard data to operators.
3. Skip R835_BAL_BPR_vs_CLP04 when BPR01='I' (Information Only 835).
In that mode BPR02 is informational and the per-claim CLP04 totals
are authoritative — a diff is expected, not an error.
Migration 0003 handles the drop with IF EXISTS so fresh DBs skip cleanly.
Updates affected tests to reflect new schema (no UNIQUE constraint on
batch_id + patient_control_number / payer_claim_control_number).
Fixes test_api_835::test_prodfile_round_trip_persists_separately which
was failing on real production data.
Adds three live-tail streaming endpoints that emit an NDJSON snapshot
then forward new event-bus events as they arrive, with a 15s idle
heartbeat (overridable via CYCLONE_TAIL_HEARTBEAT_S for tests).
Each endpoint:
1. yields a snapshot of existing rows as {"type":"item","data":<row>}
2. terminates the snapshot with {"type":"snapshot_end","data":{"count":N}}
3. subscribes to its event kind and forwards each new event as an
{"type":"item","data":<event>} line
4. emits a {"type":"heartbeat","data":{"ts":<iso>}} line every
CYCLONE_TAIL_HEARTBEAT_S seconds when idle
5. checks request.is_disconnected() before each yield and unsubscribes
from the bus on cleanup so a closed stream releases its queue
The shared tail loop lives in api._tail_events, which polls
bus.subscribe_raw()'s queue directly instead of using the bus's
async-iterator wrapper — wait_for on an async generator cancels the
inner future on timeout, which poisons subsequent __anext__ calls with
StopAsyncIteration. Queue.get() is idempotent under cancellation, so
heartbeats don't break the subscription.
EventBus gains an unsubscribe(queue, kinds) method (idempotent) so
the tail loop can release its queue in a try/finally. The disconnect
test asserts the subscriber list is empty after the body iterator is
closed, validating no queue leak per open stream.
Tests in test_api_stream_live.py: 8 tests covering snapshot shape,
post-snapshot publish, heartbeat timing, multi-item snapshots, and
client disconnect cleanup. Plus 2 tests in test_pubsub.py for the
new unsubscribe method.
- api.parse_837 / parse_835: pass request.app.state.event_bus into store.add()
- conftest: autouse fixture wires a fresh EventBus onto app.state for every
test, since TestClient does not invoke the FastAPI lifespan handler
unless used as a context manager
- test_pubsub: split get_event_bus coverage into a raises-when-missing test
and a returns-attached-bus test, both save/restore app.state.event_bus
around the assertion so the autouse fixture's bus is preserved
Phase 2 complete: db init moved to lifespan, EventBus is the process-wide
publish point, and the two ingest endpoints publish claim_written /
remittance_written / activity_recorded events on every store.add().