state-hub/docs/workplan-terminology-legacy-retirement-backlog.md

Workplan Terminology Legacy Retirement Backlog

Date: 2026-07-08
Owner: STATE-WP-0069 (child of CUST-WP-0055)
Baseline: the-custodian/docs/evidence/workstream-terminology-baseline-20260708.json

This backlog ranks every metered legacy workstream interface still present in State Hub. Removal requires legacy-meter evidence — zero measured calls in the review window, replacement verified, no manual hold.

Authoritative interface matrix: docs/workplan-terminology-transition.md.

Retirement rule (unchanged)

1. Registered in legacy-meter
2. Replacement reference verified
3. No manual hold
4. Zero measured calls in the review window

Activity-core runs the weekly review; State Hub owns usage state and removal.

Scan allowlist (grep tooling)

Exclude these paths from non-compat prose counts (see the-custodian/tools/scan_workstream_allowlist.yaml):

Area	Paths
Compat REST	api/routers/workstreams.py, api/routers/workstream_dependencies.py
Legacy meter	api/routers/legacy_meter.py, api/services/legacy_meter.py, api/models/legacy_meter.py, migrations/
MCP aliases	mcp_server/
Transition docs	docs/workplan-terminology-transition.md, this file, docs/nats-event-subjects.md
Regression tests	tests/test_legacy_meter.py, tests/test_routers_core.py
CLI compat	custodian_cli.py, scripts/consistency_check.py

Dashboard prose is not allowlisted — STATE-WP-0069 T02 drives it to zero prose:workstream in dashboard/src/.

Ranked backlog

Risk order: REST > MCP > events > dashboard prose > internal identifiers.

Phase	Legacy-meter key	Replacement	Risk	Owner task
1	rest_api:GET /workstreams/ retired (410)	GET /workplans/	REST	T04 ✓
1	rest_api:POST /workstreams/ retired (410)	POST /workplans/	REST	T04 ✓
1	rest_api:GET /workstreams/{workstream_id} retired (410)	GET /workplans/{workplan_id}	REST	T04 ✓
1	rest_api:PATCH /workstreams/{workstream_id} retired (410)	PATCH /workplans/{workplan_id}	REST	T04 ✓
1	rest_api:DELETE /workstreams/{workstream_id} retired (410)	DELETE /workplans/{workplan_id}	REST	T04 ✓
1	rest_api:GET /workstreams/workplan-index retired (410)	GET /workplans/index	REST	T04 ✓
2	rest_api:GET /workstreams/{workstream_id}/dependencies/ retired (410)	GET /workplans/{workplan_id}/dependencies/	REST	T04 ✓
2	rest_api:POST /workstreams/{workstream_id}/dependencies/ retired (410)	POST /workplans/{workplan_id}/dependencies/	REST	T04 ✓
2	rest_api:DELETE /workstreams/{workstream_id}/dependencies/{dep_id} retired (410)	DELETE /workplans/{workplan_id}/dependencies/{dep_id}	REST	T04 ✓
2	rest_api:PATCH /execution/workstreams/{workstream_id}/intent retired (410)	PATCH /execution/workplans/{workplan_id}/intent	REST	T04 ✓
3	mcp:create_workstream	create_workplan	MCP	T03
3	mcp:update_workstream	update_workplan	MCP	T03
3	mcp:update_workstream_status	update_workplan_status	MCP	T03
3	mcp:list_workstreams	list_workplans	MCP	T03
3	state://workstreams/{topic_slug}	state://workplans/{topic_slug} (proposed)	MCP resource	T03

Phase-3 MCP keys metered + registered 2026-07-10 (STATE-WP-0070 T03): _meter_legacy_mcp() records usage from the alias tools/resource; zero-window streaks accrue from registration. | 4 | event_subject:org.statehub.workstream.completed retired | org.statehub.workplan.completed | Event | T05 ✓ | | 5 | Dashboard nav label Workstreams | Workplans (URL compat retained) | Prose | T02 | | 5 | dashboard/src/index.md user-facing copy | workplan-first strings | Prose | T02 | | 6 | open_workstreams summary cache key | open_workplans | Internal | T06 | | 6 | flows/workstream.yaml entity id | flows/workplan.yaml (custodian.workplan.v1) | Internal | T06 (workplan flow shipped; workstream yaml retained) |

Query-param aliases (metered from 2026-07-09)

These accept workstream_id alongside workplan_id on preferred routes:

Legacy-meter key	Route	Replacement
rest_api:GET /tasks/?workstream_id	GET /tasks/	GET /tasks/?workplan_id=
rest_api:GET /tasks/counts?workstream_id	GET /tasks/counts	GET /tasks/counts?workplan_id=
rest_api:GET /decisions/?workstream_id	GET /decisions/	GET /decisions/?workplan_id=
rest_api:GET /token-events/?workstream_id	GET /token-events/	GET /token-events/?workplan_id=
rest_api:GET /execution/launch-requests?workstream_id	GET /execution/launch-requests	GET /execution/launch-requests?workplan_id=
rest_api:GET /progress/?workstream_id	GET /progress/	GET /progress/?workplan_id=
rest_api:POST /progress/ workstream_id	POST /progress/	POST /progress/ with workplan_id body field
rest_api:POST /tasks/ workstream_id	POST /tasks/	POST /tasks/ with workplan_id body field
rest_api:POST /decisions/ workstream_id	POST /decisions/	POST /decisions/ with workplan_id body field

Retire param aliases in T04 after zero-usage windows; callers surface via X-StateHub-Component in weekly review.

Grep budget by phase

Measured with:

python ~/the-custodian/tools/scan_workstream_terminology.py --repo state-hub --apply-allowlist --json
python ~/the-custodian/tools/scan_workstream_terminology.py --repo state-hub --check-prose-gate

Phase	Target
After T02	Zero prose:workstream in dashboard/src/
After T03	MCP tool docstrings and error messages workplan-first
After T04	OpenAPI lists /workplans only; /workstreams returns 410 or unmounted
After T07	Total repo hits reduced ≥50% from 2026-07-08 baseline

Sequencing

T01 backlog (this document) ──► T02 dashboard prose
                           ├─► T03 MCP deprecation warnings → alias removal
                           ├─► T04 REST retirement (per-key zero usage)
                           ├─► T05 stop dual-publish (after CUST-WP-0055 T03)
                           ├─► T06 internal renames
                           └─► T07 closeout

Related workplans

• STATE-WP-0054 — compatibility layer and legacy-meter (finished)
• STATE-WP-0069 — this retirement plan
• CUST-WP-0055 — fleet coordination; activity-core catalog alignment (T03)