diff --git a/README.md b/README.md
index 5a2497c..79ec516 100644
--- a/README.md
+++ b/README.md
@@ -690,7 +690,7 @@ backup create` manually retains full control.
 The `clearhouse.submit` endpoint uses `paramiko` to push a batch of
 generated 837 files to the dzinesco SFTP server
 (`mft.gainwelltechnologies.com:22`, path
-`/CO XIX/PROD/coxix_prod_11525703/FromHPE`). The SFTP credential is
+`/CO XIX/PROD/coxix_prod_11525703/ToHPE`). The SFTP credential is
 fetched from the macOS Keychain at call time — never read from YAML,
 never logged, never written to disk. The wire-up honors the file-naming
 template stored in the `clearhouse` config:
@@ -898,7 +898,7 @@ Shipped sub-projects (most recent first):
 - **Sub-project 13 (shipped) — SFTP wire-up.** `paramiko`-backed
   `SftpClient` replaces the SP9 stub. The clearhouse.submit endpoint
   actually pushes to
-  `mft.gainwelltechnologies.com:/CO XIX/PROD/coxix_prod_11525703/FromHPE`.
+  `mft.gainwelltechnologies.com:/CO XIX/PROD/coxix_prod_11525703/ToHPE`.
   SFTP credentials are read from the macOS Keychain at call time.
 - **Sub-project 12 (shipped) — Encryption at rest.** Optional
   SQLCipher AES-256 encryption of the SQLite file, with the key
@@ -1160,7 +1160,7 @@ the one-time setup recipe.
 
 - `POST /api/clearhouse/submit` — same endpoint as SP9; the
   implementation is now a real `paramiko` `SftpClient.write` to
-  `mft.gainwelltechnologies.com:/CO XIX/PROD/coxix_prod_11525703/FromHPE`.
+  `mft.gainwelltechnologies.com:/CO XIX/PROD/coxix_prod_11525703/ToHPE`.
   SFTP credentials are fetched from the macOS Keychain at call time.
 
 ## License
diff --git a/backend/src/cyclone/edi/filenames.py b/backend/src/cyclone/edi/filenames.py
index 92157d1..52c213e 100644
--- a/backend/src/cyclone/edi/filenames.py
+++ b/backend/src/cyclone/edi/filenames.py
@@ -7,7 +7,7 @@ Outbound (we send):
     tp{tpid}-{transaction_type}-{yyyymmddhhmmssSSS_MT}-1of1.{ext}
     Example: tp11525703-837P-20260620132243505-1of1.x12
 
-Inbound (HPE sends to our ToHPE):
+Inbound (HPE sends to our FromHPE):
     TP{tpid}-{orig_tx}_M{tracking}-{ts}-1of1_{file_type}.x12
     Example: TP11525703-837P_M019048402-20260520231513488-1of1_999.x12
 
diff --git a/backend/src/cyclone/store.py b/backend/src/cyclone/store.py
index 5079658..7449357 100644
--- a/backend/src/cyclone/store.py
+++ b/backend/src/cyclone/store.py
@@ -2370,8 +2370,8 @@ class CycloneStore:
                         "port": 22,
                         "username": "colorado-fts\\coxix_prod_11525703",
                         "paths": {
-                            "outbound": "/CO XIX/PROD/coxix_prod_11525703/FromHPE",
-                            "inbound": "/CO XIX/PROD/coxix_prod_11525703/ToHPE",
+                            "outbound": "/CO XIX/PROD/coxix_prod_11525703/ToHPE",
+                            "inbound": "/CO XIX/PROD/coxix_prod_11525703/FromHPE",
                         },
                         "stub": True,
                         "staging_dir": "./var/sftp/staging",
diff --git a/backend/tests/test_api_clearhouse_patch.py b/backend/tests/test_api_clearhouse_patch.py
index 3717a0e..e4259d0 100644
--- a/backend/tests/test_api_clearhouse_patch.py
+++ b/backend/tests/test_api_clearhouse_patch.py
@@ -121,8 +121,8 @@ def test_patch_without_session_returns_401(client):
             "port": 22,
             "username": "colorado-fts\\coxix_prod_11525703",
             "paths": {
-                "outbound": "/CO XIX/PROD/coxix_prod_11525703/FromHPE",
-                "inbound": "/CO XIX/PROD/coxix_prod_11525703/ToHPE",
+                "outbound": "/CO XIX/PROD/coxix_prod_11525703/ToHPE",
+                "inbound": "/CO XIX/PROD/coxix_prod_11525703/FromHPE",
             },
             "stub": overrides.get("stub", False),
             "staging_dir": "./var/sftp/staging",
diff --git a/backend/tests/test_api_scheduler.py b/backend/tests/test_api_scheduler.py
index cb05a31..79b7dd6 100644
--- a/backend/tests/test_api_scheduler.py
+++ b/backend/tests/test_api_scheduler.py
@@ -34,13 +34,13 @@ def _stub_scheduler_env(tmp_path, monkeypatch):
     db._reset_for_tests()
 
     staging = tmp_path / "staging"
-    inbound = staging / "ToHPE"
+    inbound = staging / "FromHPE"
     inbound.mkdir(parents=True)
     sftp_block = SftpBlock(
         host="mft.example.com",
         port=22,
         username="test",
-        paths={"outbound": "/FromHPE", "inbound": "/ToHPE"},
+        paths={"outbound": "/ToHPE", "inbound": "/FromHPE"},
         stub=True,
         staging_dir=str(staging),
         poll_seconds=60,
@@ -54,7 +54,7 @@ def _stub_scheduler_env(tmp_path, monkeypatch):
 
 
 def _drop_file(staging: Path, name: str, body: bytes) -> Path:
-    p = staging / "ToHPE" / name
+    p = staging / "FromHPE" / name
     p.write_bytes(body)
     return p
 
diff --git a/backend/tests/test_clearhouse_api.py b/backend/tests/test_clearhouse_api.py
index 7057bbd..bf41827 100644
--- a/backend/tests/test_clearhouse_api.py
+++ b/backend/tests/test_clearhouse_api.py
@@ -30,8 +30,8 @@ def test_get_clearhouse_seeded(client):
     assert body["name"] == "dzinesco"
     assert body["tpid"] == "11525703"
     assert body["sftp_block"]["stub"] is True
-    assert "FromHPE" in body["sftp_block"]["paths"]["outbound"]
-    assert "ToHPE" in body["sftp_block"]["paths"]["inbound"]
+    assert "ToHPE" in body["sftp_block"]["paths"]["outbound"]
+    assert "FromHPE" in body["sftp_block"]["paths"]["inbound"]
 
 
 def test_list_providers(client):
diff --git a/backend/tests/test_providers_seed.py b/backend/tests/test_providers_seed.py
index 42d82b9..27bb18e 100644
--- a/backend/tests/test_providers_seed.py
+++ b/backend/tests/test_providers_seed.py
@@ -54,8 +54,8 @@ def test_seed_creates_clearhouse_singleton():
     assert ch.submitter_name == "Dzinesco"
     assert ch.sftp_block.host == "mft.gainwelltechnologies.com"
     assert ch.sftp_block.stub is True
-    assert "FromHPE" in ch.sftp_block.paths["outbound"]
-    assert "ToHPE" in ch.sftp_block.paths["inbound"]
+    assert "ToHPE" in ch.sftp_block.paths["outbound"]
+    assert "FromHPE" in ch.sftp_block.paths["inbound"]
 
 
 def test_seed_creates_co_txix_payer_with_both_configs():
diff --git a/backend/tests/test_scheduler.py b/backend/tests/test_scheduler.py
index 3a19fc4..db13929 100644
--- a/backend/tests/test_scheduler.py
+++ b/backend/tests/test_scheduler.py
@@ -35,15 +35,15 @@ from cyclone.scheduler import (
 @pytest.fixture
 def sftp_block(tmp_path):
     staging = tmp_path / "staging"
-    inbound_dir = staging / "ToHPE"
+    inbound_dir = staging / "FromHPE"
     inbound_dir.mkdir(parents=True)
     return SftpBlock(
         host="mft.example.com",
         port=22,
         username="test",
         paths={
-            "outbound": "/FromHPE",
-            "inbound": "/ToHPE",
+            "outbound": "/ToHPE",
+            "inbound": "/FromHPE",
         },
         stub=True,
         staging_dir=str(staging),
@@ -55,7 +55,7 @@ def sftp_block(tmp_path):
 @pytest.fixture
 def _drop_file(sftp_block):
     """Helper: drop a named file in the inbound dir. Returns the path."""
-    inbound_dir = Path(sftp_block.staging_dir) / "ToHPE"
+    inbound_dir = Path(sftp_block.staging_dir) / "FromHPE"
 
     def _drop(name: str, body: bytes) -> Path:
         inbound_dir.mkdir(parents=True, exist_ok=True)
diff --git a/backend/tests/test_sftp_paramiko.py b/backend/tests/test_sftp_paramiko.py
index fe0e4b0..affea05 100644
--- a/backend/tests/test_sftp_paramiko.py
+++ b/backend/tests/test_sftp_paramiko.py
@@ -40,8 +40,8 @@ def _block(
         port=22,
         username="testuser",
         paths={
-            "outbound": "/CO XIX/PROD/test/FromHPE",
-            "inbound": "/CO XIX/PROD/test/ToHPE",
+            "outbound": "/CO XIX/PROD/test/ToHPE",
+            "inbound": "/CO XIX/PROD/test/FromHPE",
         },
         stub=stub,
         staging_dir=staging_dir,
diff --git a/backend/tests/test_sftp_stub.py b/backend/tests/test_sftp_stub.py
index 8ce3548..bf390ec 100644
--- a/backend/tests/test_sftp_stub.py
+++ b/backend/tests/test_sftp_stub.py
@@ -19,8 +19,8 @@ def sftp_block(tmp_path):
         port=22,
         username="colorado-fts\\coxix_prod_11525703",
         paths={
-            "outbound": "/CO XIX/PROD/coxix_prod_11525703/FromHPE",
-            "inbound": "/CO XIX/PROD/coxix_prod_11525703/ToHPE",
+            "outbound": "/CO XIX/PROD/coxix_prod_11525703/ToHPE",
+            "inbound": "/CO XIX/PROD/coxix_prod_11525703/FromHPE",
         },
         stub=True,
         staging_dir=str(staging),
@@ -55,7 +55,7 @@ def test_stub_list_inbound_empty_when_no_local_files(sftp_block):
 
 def test_stub_list_inbound_returns_local_files(sftp_block):
     # Simulate operator dropping a file in the inbound staging dir
-    inbound_dir = Path(sftp_block.staging_dir) / "CO XIX/PROD/coxix_prod_11525703/ToHPE"
+    inbound_dir = Path(sftp_block.staging_dir) / "CO XIX/PROD/coxix_prod_11525703/FromHPE"
     inbound_dir.mkdir(parents=True, exist_ok=True)
     (inbound_dir / "TP11525703-837P_M019048402-20260520231513488-1of1_999.x12").write_bytes(b"X")
     client = SftpClient(sftp_block)
@@ -78,17 +78,17 @@ def test_stub_read_file_returns_bytes(sftp_block, tmp_path):
     Lets the inbound scheduler exercise the same code path on a
     workstation without a real MFT connection.
     """
-    inbound = tmp_path / "staging" / "ToHPE"
+    inbound = tmp_path / "staging" / "FromHPE"
     inbound.mkdir(parents=True)
     (inbound / "TP11525703-837P_M019048402-20260618130000000-1of1_TA1.x12").write_bytes(
         b"hello-world",
     )
     client = SftpClient(sftp_block)
-    body = client.read_file("/ToHPE/TP11525703-837P_M019048402-20260618130000000-1of1_TA1.x12")
+    body = client.read_file("/FromHPE/TP11525703-837P_M019048402-20260618130000000-1of1_TA1.x12")
     assert body == b"hello-world"
 
 
 def test_stub_read_file_missing_raises(sftp_block):
     client = SftpClient(sftp_block)
     with pytest.raises(FileNotFoundError):
-        client.read_file("/ToHPE/does-not-exist.x12")
+        client.read_file("/FromHPE/does-not-exist.x12")
diff --git a/backend/tests/test_store_update_clearhouse.py b/backend/tests/test_store_update_clearhouse.py
index 51fe765..c06f26d 100644
--- a/backend/tests/test_store_update_clearhouse.py
+++ b/backend/tests/test_store_update_clearhouse.py
@@ -27,8 +27,8 @@ def test_update_clearhouse_round_trip():
         port=22,
         username="colorado-fts\\coxix_prod_11525703",
         paths={
-            "outbound": "/CO XIX/PROD/coxix_prod_11525703/FromHPE",
-            "inbound": "/CO XIX/PROD/coxix_prod_11525703/ToHPE",
+            "outbound": "/CO XIX/PROD/coxix_prod_11525703/ToHPE",
+            "inbound": "/CO XIX/PROD/coxix_prod_11525703/FromHPE",
         },
         stub=False,
         staging_dir="./var/sftp/staging",
diff --git a/docs/reference/co-medicaid.md b/docs/reference/co-medicaid.md
index 009008a..fc8dd26 100644
--- a/docs/reference/co-medicaid.md
+++ b/docs/reference/co-medicaid.md
@@ -25,8 +25,8 @@ the 837P file.
 | Submitter contact | Tyler Martinez <tyler@dzinesco.com> |
 | SFTP host | `mft.gainwelltechnologies.com` |
 | SFTP username | `colorado-fts\coxix_prod_11525703` |
-| SFTP outbound dir | `/CO XIX/PROD/coxix_prod_11525703/FromHPE` |
-| SFTP inbound dir | `/CO XIX/PROD/coxix_prod_11525703/ToHPE` |
+| SFTP outbound dir | `/CO XIX/PROD/coxix_prod_11525703/ToHPE` |
+| SFTP inbound dir | `/CO XIX/PROD/coxix_prod_11525703/FromHPE` |
 
 ## dzinesco's 3 billing-provider NPIs
 
@@ -49,8 +49,8 @@ dzinesco submits 837P files to Gainwell's MFT (Managed File Transfer)
 at `mft.gainwelltechnologies.com`. The full SFTP path layout is
 specified by the user (2026-06-20):
 
-- **Outbound** (we send): `/CO XIX/PROD/coxix_prod_11525703/FromHPE`
-- **Inbound** (HPE/Gainwell sends to us): `/CO XIX/PROD/coxix_prod_11525703/ToHPE`
+- **Outbound** (we send): `/CO XIX/PROD/coxix_prod_11525703/ToHPE`
+- **Inbound** (HPE/Gainwell sends to us): `/CO XIX/PROD/coxix_prod_11525703/FromHPE`
 
 ### File naming
 
@@ -107,8 +107,8 @@ curl -X POST http://localhost:8000/api/clearhouse/submit \
   -H 'Content-Type: application/json' \
   -d '{"claim_ids": ["CLM-1", "CLM-2"], "payer_id": "CO_TXIX"}'
 
-# Files appear at ./var/sftp/staging/CO XIX/PROD/coxix_prod_11525703/FromHPE/
-ls -la "./var/sftp/staging/CO XIX/PROD/coxix_prod_11525703/FromHPE/"
+# Files appear at ./var/sftp/staging/CO XIX/PROD/coxix_prod_11525703/ToHPE/
+ls -la "./var/sftp/staging/CO XIX/PROD/coxix_prod_11525703/ToHPE/"
 ```
 
 ## Payer IDs
diff --git a/docs/superpowers/specs/2026-06-20-cyclone-multi-payer-npi-sftp-design.md b/docs/superpowers/specs/2026-06-20-cyclone-multi-payer-npi-sftp-design.md
index 55cb54a..0d0e69a 100644
--- a/docs/superpowers/specs/2026-06-20-cyclone-multi-payer-npi-sftp-design.md
+++ b/docs/superpowers/specs/2026-06-20-cyclone-multi-payer-npi-sftp-design.md
@@ -21,7 +21,7 @@ Replace the single hard-coded `PayerConfig` factory dict (currently in `api.py:9
 - **SP10** — 277CA parser + "Payer-Rejected" lane in the Inbox.
 - **SP11** — Tamper-evident hash-chained `audit_log` table.
 - **SP12** — SQLCipher encryption at rest + Keychain-stored DB key.
-- **SP13** — Replace the SFTP stub with real `paramiko` connection to `mft.gainwelltechnologies.com` and actually push to `/CO XIX/PROD/coxix_prod_11525703/FromHPE`.
+- **SP13** — Replace the SFTP stub with real `paramiko` connection to `mft.gainwelltechnologies.com` and actually push to `/CO XIX/PROD/coxix_prod_11525703/ToHPE`.
 - **Real SFTP credentials in Keychain** — schema and call sites are in place; the actual secret is created manually by the operator.
 
 ## 2. Goals
@@ -109,8 +109,8 @@ VALUES (1, 'dzinesco', '11525703', 'Dzinesco', 'Tyler Martinez', 'tyler@dzinesco
   '"inbound_template":"TP{tpid}-{orig_tx}_M{tracking}-{ts}-1of1_{file_type}.x12"}',
   '{"host":"mft.gainwelltechnologies.com","port":22,'
   '"username":"colorado-fts\\coxix_prod_11525703",'
-  '"paths":{"outbound":"/CO XIX/PROD/coxix_prod_11525703/FromHPE",'
-  '"inbound":"/CO XIX/PROD/coxix_prod_11525703/ToHPE"},'
+  '"paths":{"outbound":"/CO XIX/PROD/coxix_prod_11525703/ToHPE",'
+  '"inbound":"/CO XIX/PROD/coxix_prod_11525703/FromHPE"},'
   '"stub":true,"staging_dir":"./var/sftp/staging","poll_seconds":300}',
   '2026-06-20T00:00:00Z');
 ```
@@ -163,13 +163,13 @@ All 3 share the same address because all 3 are registered to the Montrose corpor
 
 Per the **HCPF X12 File Naming Standards Quick Guide** (https://hcpf.colorado.gov/tp-x12-filenaming):
 
-**Outbound** (we send to `/CO XIX/PROD/coxix_prod_11525703/FromHPE`):
+**Outbound** (we send to `/CO XIX/PROD/coxix_prod_11525703/ToHPE`):
 ```
 {tpid}-{transaction_type}-{yyyymmddhhmmssSSS_MT}-1of1.{ext}
 ```
 Example: `11525703-837P-20260620132243505-1of1.x12`
 
-**Inbound** (HPE sends to `/CO XIX/PROD/coxix_prod_11525703/ToHPE`):
+**Inbound** (HPE sends to `/CO XIX/PROD/coxix_prod_11525703/FromHPE`):
 ```
 TP{tpid}-{orig_tx}_M{tracking}-{ts}-1of1_{file_type}.x12
 ```
@@ -209,7 +209,7 @@ Handler:
      "ok": true,
      "submitted": [
        {"claim_id": "CLM-001", "filename": "11525703-837P-20260620132243505-1of1.x12",
-        "staging_path": "./var/sftp/staging/CO XIX/PROD/coxix_prod_11525703/FromHPE/11525703-..."}
+        "staging_path": "./var/sftp/staging/CO XIX/PROD/coxix_prod_11525703/ToHPE/11525703-..."}
      ],
      "stub": true
    }
@@ -367,7 +367,7 @@ All R200-R210 run on parse AND on serialize, so a 837 file with an unknown NPI f
 
 | # | Question | Resolution |
 |---|----------|-----------|
-| 1 | SFTP outbound + inbound paths on `mft.gainwelltechnologies.com` | `/CO XIX/PROD/coxix_prod_11525703/FromHPE` (out), `/CO XIX/PROD/coxix_prod_11525703/ToHPE` (in) — user-provided 2026-06-20 |
+| 1 | SFTP outbound + inbound paths on `mft.gainwelltechnologies.com` | `/CO XIX/PROD/coxix_prod_11525703/ToHPE` (out), `/CO XIX/PROD/coxix_prod_11525703/FromHPE` (in) — user-provided 2026-06-20 |
 | 2 | 3 NPI street addresses + ZIPs | All 3 NPIs share Montrose corporate address (user confirmed 2026-06-20) — seed from prod files |
 | 3 | 3 NPI taxonomy codes | `251E00000X` for all 3, self-served from 136 prod files |
 | 4 | 277CA filename suffix | Use `277` per HCPF doc; distinguish 277CA by `ST*277CA` content (user confirmed 2026-06-20) |