diff --git a/backend/app/infra/schedule/__init__.py b/backend/app/infra/schedule/__init__.py
index 71da9cbdc..792b35005 100644
--- a/backend/app/infra/schedule/__init__.py
+++ b/backend/app/infra/schedule/__init__.py
@@ -1 +1,10 @@
-"""Secondary adapters for the schedule bounded context."""
+"""Secondary adapters for the schedule bounded context.
+
+Grouped by context rather than by technology, mirroring `domain/schedule/`:
+everything the outer ring provides to this one context lives here, whether it
+talks to SQL (`task_sql`, `run_sql`), converts a wire/storage shape
+(`spec_mapping`), or wraps a runtime.
+
+`app/infra/persistence/feedback.py` still follows the older technology-first
+layout because it belongs to a separate migration; the two will converge.
+"""
diff --git a/backend/app/infra/persistence/scheduled_task_runs.py b/backend/app/infra/schedule/run_sql.py
similarity index 100%
rename from backend/app/infra/persistence/scheduled_task_runs.py
rename to backend/app/infra/schedule/run_sql.py
diff --git a/backend/app/infra/persistence/scheduled_tasks.py b/backend/app/infra/schedule/task_sql.py
similarity index 99%
rename from backend/app/infra/persistence/scheduled_tasks.py
rename to backend/app/infra/schedule/task_sql.py
index b4ac3a774..c2f0d029d 100644
--- a/backend/app/infra/persistence/scheduled_tasks.py
+++ b/backend/app/infra/schedule/task_sql.py
@@ -1,5 +1,7 @@
 """SQL adapter for the schedule context's task repository.
 
+Sibling of `run_sql.py`; both consume `spec_mapping` for the stored JSON spec.
+
 Secondary adapter implementing `ScheduledTaskRepository`. SQL/ORM vocabulary
 stops at this file: methods exchange domain objects and normalize SQLite's
 tz-naive reads.
diff --git a/backend/tests/test_schedule_fakes.py b/backend/tests/test_schedule_fakes.py
index 8f632900f..004c55a4f 100644
--- a/backend/tests/test_schedule_fakes.py
+++ b/backend/tests/test_schedule_fakes.py
@@ -28,8 +28,8 @@ from schedule_fakes import (
     InMemoryScheduledTaskRepository,
 )
 
-from app.infra.persistence.scheduled_task_runs import SqlScheduledRunRepository
-from app.infra.persistence.scheduled_tasks import SqlScheduledTaskRepository
+from app.infra.schedule.run_sql import SqlScheduledRunRepository
+from app.infra.schedule.task_sql import SqlScheduledTaskRepository
 from deerflow.config.database_config import DatabaseConfig
 from deerflow.domain.schedule.model import (
     ACTIVE_RUN_STATUSES,