diff --git a/README.md b/README.md
index 1b550d5..670bd56 100644
--- a/README.md
+++ b/README.md
@@ -418,6 +418,35 @@ was a one-file change (`sftp_paramiko.py` replacing `sftp_stub.py`).
 the `paramiko` extras aren't installed so the test suite stays green on
 Linux dev boxes.
 
+## Inbound MFT Scheduler (SP16)
+
+The dzinesco SFTP server accepts inbound files (835 remits, 999/TA1
+acks, 271 eligibility responses, 277/277CA claim acknowledgments) that
+need to be pulled on a cadence, parsed, and persisted. SP16 ships the
+**operator-facing control surface** for the polling loop, even though
+the actual background scheduler is still in flight:
+
+| Method | Path                                          | Notes                                                            |
+| ------ | --------------------------------------------- | ---------------------------------------------------------------- |
+| POST   | `/api/admin/scheduler/start`                  | Start the background MFT polling loop (idempotent).              |
+| POST   | `/api/admin/scheduler/stop`                   | Stop the background loop. Waits for the current tick to finish.  |
+| GET    | `/api/admin/scheduler/status`                 | Running state + last tick summary.                               |
+| POST   | `/api/admin/scheduler/tick`                   | Force a single poll cycle. Coalesces with an in-flight tick.     |
+| GET    | `/api/admin/scheduler/processed-files`        | Recently processed inbound files. `?status=ok|error|skipped|pending`, `?limit=` (1–500, default 50). |
+
+The endpoints read from a `cyclone.scheduler` module and a
+`cyclone.db.ProcessedInboundFile` ORM model that are being landed
+alongside SP16 — the admin router's import surface is in place, the
+implementation is in progress. The control surface is forward-compatible
+with the eventual scheduler: starting / stopping / ticking / listing
+processed files will all work as soon as the loop lands.
+
+The `paramiko` SFTP client from [SP13](#sftp-wire-up-paramiko) is the
+underlying transport; the scheduler reuses it to list + download files
+under the inbound SFTP path, then dispatches each downloaded file to
+the matching parser based on the `<FileType>` token in the filename
+(see [SP13 file-naming template](#sftp-wire-up-paramiko)).
+
 ## Batches, Reconciliation, and Activity
 
 These read/write endpoints are the core operator surface for browsing
@@ -474,20 +503,31 @@ backup API).
 .
 ├── backend/
 │   ├── src/cyclone/
-│   │   ├── api.py             # FastAPI app + parse routes; mounts api_routers/* sub-apps
+│   │   ├── api.py             # FastAPI app + middleware; mounts api_routers/* sub-apps
 │   │   ├── api_helpers.py     # NDJSON / content-negotiation / live-tail helpers
 │   │   ├── api_routers/       # FastAPI APIRouters extracted from api.py
 │   │   │   ├── health.py      #   GET /api/health
 │   │   │   ├── acks.py        #   GET /api/acks, /api/acks/{id}
 │   │   │   ├── ta1_acks.py    #   GET /api/ta1-acks, /api/ta1-acks/{id}
 │   │   │   ├── activity.py    #   GET /api/activity, /api/activity/stream
-│   │   │   ├── batches.py     #   GET /api/batches, /api/batches/{id}, /api/batch-diff
+│   │   │   ├── batches.py     #   GET /api/batches, /api/batches/{id}
 │   │   │   ├── claims.py      #   GET /api/claims, /api/claims/stream, /api/claims/{id},
 │   │   │   │                  #   /api/claims/{id}/serialize-837, /api/claims/{id}/line-reconciliation
 │   │   │   ├── remittances.py #   GET /api/remittances, /api/remittances/stream, /api/remittances/{id}
 │   │   │   ├── providers.py   #   GET /api/providers
+│   │   │   ├── inbox.py       #   GET /api/inbox/lanes, POST /api/inbox/* (match/dismiss/acknowledge/resubmit),
+│   │   │   │                  #   GET /api/inbox/export.csv
+│   │   │   ├── reconciliation.py #   GET /api/reconciliation/unmatched, /api/batch-diff,
+│   │   │   │                     #   POST /api/reconciliation/match, /api/reconciliation/unmatch
+│   │   │   ├── eligibility.py #   POST /api/eligibility/request, /api/eligibility/parse-271
 │   │   │   ├── clearhouse.py  #   GET /api/clearhouse, POST /api/clearhouse/submit
-│   │   │   └── config.py      #   /api/config/providers[/...], /api/config/payers[/...], /api/admin/reload-config
+│   │   │   ├── config.py      #   /api/config/providers[/...], /api/config/payers[/...], /api/admin/reload-config
+│   │   │   ├── parse_835.py   #   POST /api/parse-835
+│   │   │   ├── parse_837.py   #   POST /api/parse-837
+│   │   │   ├── parse_999.py   #   POST /api/parse-999
+│   │   │   ├── parse_ta1.py   #   POST /api/parse-ta1
+│   │   │   └── admin.py       #   /api/admin/audit-log[/verify], /api/admin/db/rotate-key,
+│   │   │                      #   /api/admin/scheduler/* (SP16)
 │   │   ├── pubsub.py          # in-process EventBus (drop-oldest, per-kind fan-out)
 │   │   ├── store.py           # CycloneStore, mappers, publish-on-write
 │   │   ├── db.py              # SQLAlchemy engine, session factory, ORM models