STATE-WP-0070 T04 (partial): drop open_workstreams from /state/summary

Removes the redundant open_workstreams mirror field from StateSummary (schema,
router, MCP get_domain_summary reader, dashboard consumers + empty-state stub,
and tests). Consumers already preferred open_workplans, so this is the
low-risk half of T04.

Deferred (still have live callers — not yet retirement-ready):
- workstream_id query/body field alias on preferred routes — external
  session-close curls/scripts fleet-wide still send it.
- flows/workstream.yaml — /flows/workstream/{id} routes are still served and
  exercised by tests; retire only once no callers remain.

Staged on branch state-wp-0070-legacy-retirement — do not merge until the 7th
documented zero-usage window is captured.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

api/routers/state.py

@@ -199,7 +199,7 @@ async def build_state_summary(session: AsyncSession) -> StateSummary:
     )
     open_ws = list(open_ws_rows.scalars().all())
 
-    # Task counts per workplan (used to enrich open_workplans / open_workstreams)
+    # Task counts per workplan (used to enrich open_workplans)
     task_per_ws: dict = {}
     task_statuses_per_ws: dict = {}
     for ws_id, tstat, cnt in await session.execute(
@@ -430,7 +430,6 @@ async def build_state_summary(session: AsyncSession) -> StateSummary:
         open_capability_requests=open_cap_req_count,
         ranked_suggestions=ranked_suggestions,
         open_workplans=open_workplan_rows,
-        open_workstreams=open_workplan_rows,
     )
     return result
 
@@ -793,7 +792,7 @@ async def _build_domain_summaries(session: AsyncSession) -> list[DomainSummary]:
 async def get_deps(session: AsyncSession = Depends(get_session)) -> list[WorkstreamWithDeps]:
     """Lightweight dep-graph endpoint: open workstreams with their dependency edges only.
 
-    Returns the same structure as open_workstreams in /state/summary but skips
+    Returns the same structure as open_workplans in /state/summary but skips
     the 10-table full-summary computation. Task counts are omitted (all zero).
     Used by workstreams.md and dependencies.md which only need dep edges.
     """

api/schemas/state.py

@@ -83,7 +83,6 @@ class StateSummary(BaseModel):
     waiting_tasks: list[TaskRead]
     blocked_tasks: list[TaskRead] = []
     recent_progress: list[ProgressEventRead]
-    open_workstreams: list[WorkstreamWithDeps]
     open_workplans: list[WorkstreamWithDeps] = []
     next_steps: list[NextStep] = []
     domains: list[DomainSummary] = []

dashboard/src/data/summary.json.py

@@ -38,5 +38,4 @@ except urllib.error.URLError as e:
         "blocked_tasks": [],
         "recent_progress": [],
         "open_workplans": [],
-        "open_workstreams": [],
     }))

dashboard/src/index.md

@@ -437,7 +437,7 @@ display(html`<div class="grid grid-cols-3" style="gap:1rem;margin-bottom:1.5rem"
 
 ```js
 const waitingTasks = summary.waiting_tasks ?? summary.blocked_tasks ?? [];
-const wsById = Object.fromEntries((summary.open_workplans ?? summary.open_workstreams ?? []).map(w => [w.id, w]));
+const wsById = Object.fromEntries((summary.open_workplans ?? []).map(w => [w.id, w]));
 const todayCount = (summary.recent_progress ?? []).filter(e =>
   e.created_at?.startsWith(new Date().toISOString().slice(0, 10))).length;
 const decCount = (decisions.open ?? 0) + (decisions.escalated ?? 0);

mcp_server/server.py

@@ -263,9 +263,7 @@ def get_domain_summary(domain_slug: str) -> str:
     topic_id = topic["id"]
 
     state_summary = _get("/state/summary")
-    open_workplans = state_summary.get("open_workplans") or state_summary.get(
+    open_workplans = state_summary.get("open_workplans", [])
-        "open_workstreams", []
-    )
     workstreams = [ws for ws in open_workplans if ws.get("topic_id") == topic_id]
     blocking = _get("/decisions", {"decision_type": "pending", "topic_id": topic_id})
     recent = _get("/progress", {"topic_id": topic_id, "limit": 5})

tests/test_mcp_smoke.py

@@ -48,14 +48,14 @@ class TestGetStateSummary:
         assert r.status_code == 200
         body = r.json()
         # Required top-level fields
-        for key in ("open_workstreams", "blocking_decisions", "blocked_tasks",
+        for key in ("open_workplans", "blocking_decisions", "blocked_tasks",
                     "domains", "contribution_counts", "licence_risk_count"):
             assert key in body, f"missing key: {key}"
 
     async def test_empty_db_returns_zero_counts(self, client):
         r = await client.get("/state/summary")
         body = r.json()
-        assert body["open_workstreams"] == []
+        assert body["open_workplans"] == []
         assert body["blocking_decisions"] == []
         assert body["blocked_tasks"] == []
 

tests/test_routers_core.py

@@ -433,9 +433,7 @@ class TestStateSummary:
         r = await client.get("/state/summary")
         assert r.status_code == 200
         body = r.json()
-        assert "open_workstreams" in body
         assert "open_workplans" in body
-        assert body["open_workplans"] == body["open_workstreams"]
         assert "blocking_decisions" in body
         assert "blocked_tasks" in body
         assert "domains" in body
@@ -471,7 +469,7 @@ class TestStateSummary:
         r = await client.get("/state/summary")
         assert r.status_code == 200
         body = r.json()
-        summaries = {item["id"]: item for item in body["open_workstreams"]}
+        summaries = {item["id"]: item for item in body["open_workplans"]}
 
         assert summaries[blocked_ws["id"]]["status"] == "blocked"
         assert summaries[blocked_ws["id"]]["blocked_reasons"][0]["id"] == "dependencies.all_complete"

tests/test_summary_cache.py

@@ -142,7 +142,7 @@ def test_summary_cache_unit_progress_section():
         blocking_decisions=[],
         waiting_tasks=[],
         recent_progress=[],
-        open_workstreams=[],
+        open_workplans=[],
     )
     cache.store(summary, rev)
 
@@ -181,7 +181,7 @@ def test_invalidate_summary_cache_scopes():
         blocking_decisions=[],
         waiting_tasks=[],
         recent_progress=[],
-        open_workstreams=[],
+        open_workplans=[],
     )
     cache.store(summary, rev)