docs/reference/837p.md line 48: the CO Medicaid trading-partner line
was still saying 'SKCO0 (sender) <-> COHCPF (receiver)'. The HCPF
837P Companion Guide (June 2025 - Version 2.5) requires
NM1*PR NM109 = CO_TXIX; SKCO0 causes Gainwell to reject the SET
('2010BB NM109 must equal CO_TXIX or CO_BHA').
docs/reference/co-medicaid.md line 118 + the Trading Partner table at
the top: same fix, with a pointer to the SP33 spec for the
root-cause story.
No code changes. Pure doc fix to match what the source now emits
(PayerConfig.co_medicaid().payer_id = 'CO_TXIX').
The dzinesco SP9 seed had `paths.inbound` and `paths.outbound` mapped to
the wrong Gainwell MFT directories:
- paths.outbound was FromHPE/ (HPE sends files FROM here TO us — inbound)
- paths.inbound was ToHPE/ (we send files TO here — outbound)
So `/api/clearhouse/submit` was writing 837P claims to FromHPE (where
HPE puts acks/835s) and the SP16 scheduler was polling ToHPE (where our
claims go). 999 / TA1 / 835 files in the real FromHPE inbox were
unreachable.
Semantics per operator (2026-06-24):
- FromHPE = HPE/Gainwell → us = 999, TA1, 835 (inbound)
- ToHPE = us → HPE/Gainwell = 837P claims (outbound)
**Runtime code (the actual fix):**
- backend/src/cyclone/store.py — SP9 seed paths flipped
- backend/src/cyclone/edi/filenames.py — docstring corrected
**Test fixtures + assertions (would otherwise fail on the new seed):**
- backend/tests/test_clearhouse_api.py
- backend/tests/test_providers_seed.py
- backend/tests/test_sftp_stub.py — incl. inbound dir paths
- backend/tests/test_sftp_paramiko.py
- backend/tests/test_store_update_clearhouse.py
- backend/tests/test_api_clearhouse_patch.py
- backend/tests/test_scheduler.py
- backend/tests/test_api_scheduler.py
**Docs (text-only — keeps the codebase self-consistent):**
- README.md
- docs/reference/co-medicaid.md
- docs/superpowers/specs/2026-06-20-cyclone-multi-payer-npi-sftp-design.md
**Operator action required after merge:** the existing clearhouse row in
`~/.local/share/cyclone/cyclone.db` was seeded with the old wrong
paths. Easiest recovery:
1. `rm ~/.local/share/cyclone/cyclone.db` and let `ensure_clearhouse_seeded` re-run on next boot, OR
2. PATCH /api/clearhouse with the new `paths` block (the SP25
reconfigure hook picks it up live, including by the running scheduler).
**Verification:**
- 82 tests in the affected files pass (test_clearhouse_api, test_providers_seed,
test_sftp_stub, test_sftp_paramiko, test_store_update_clearhouse,
test_api_clearhouse_patch, test_scheduler, test_api_scheduler, test_filenames).
- Full backend suite: 1029 pass + 36 pre-existing order-dependent flakes
unrelated to this change (verified by running the same tests in isolation).
- 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.
Nora
Tyler