diff --git a/workplans/archived/260702-RAIL-PL-WP-0002-openbao-platform-secrets-service.md b/workplans/archived/260702-RAIL-PL-WP-0002-openbao-platform-secrets-service.md
index 119b9ae..f4f2471 100644
--- a/workplans/archived/260702-RAIL-PL-WP-0002-openbao-platform-secrets-service.md
+++ b/workplans/archived/260702-RAIL-PL-WP-0002-openbao-platform-secrets-service.md
@@ -16,6 +16,8 @@ depends_on:
 state_hub_workstream_id: "fd1c045a-01d4-43be-980f-acbda6c64e6c"
 ---
 
+> **Terminology note:** Historical text in this archived workplan may use the legacy term "workstream". The fleet term is **workplan** (`canon/standards/workplan-terminology-fleet_v0.1.md`).
+
 # RAIL-PL-WP-0002 - OpenBao Platform Secrets Service
 
 ## Goal
diff --git a/workplans/archived/260702-RAILIANCE-WP-0003-apps-pg-shared-cluster.md b/workplans/archived/260702-RAILIANCE-WP-0003-apps-pg-shared-cluster.md
index 9e64c30..1b9f2eb 100644
--- a/workplans/archived/260702-RAILIANCE-WP-0003-apps-pg-shared-cluster.md
+++ b/workplans/archived/260702-RAILIANCE-WP-0003-apps-pg-shared-cluster.md
@@ -14,6 +14,8 @@ updated: "2026-05-19"
 state_hub_workstream_id: "665b3b9b-608a-4be4-84b6-dcb8261ff57b"
 ---
 
+> **Terminology note:** Historical text in this archived workplan may use the legacy term "workstream". The fleet term is **workplan** (`canon/standards/workplan-terminology-fleet_v0.1.md`).
+
 # RAILIANCE-WP-0003 - Provision shared CNPG cluster apps-pg
 
 ## Goal
diff --git a/workplans/archived/260702-RAILIANCE-WP-0004-argocd-gitops-bootstrap.md b/workplans/archived/260702-RAILIANCE-WP-0004-argocd-gitops-bootstrap.md
index 8f03c89..c7d2338 100644
--- a/workplans/archived/260702-RAILIANCE-WP-0004-argocd-gitops-bootstrap.md
+++ b/workplans/archived/260702-RAILIANCE-WP-0004-argocd-gitops-bootstrap.md
@@ -14,6 +14,8 @@ updated: "2026-06-25"
 state_hub_workstream_id: "e57e487b-8557-439d-8093-0457c73ede93"
 ---
 
+> **Terminology note:** Historical text in this archived workplan may use the legacy term "workstream". The fleet term is **workplan** (`canon/standards/workplan-terminology-fleet_v0.1.md`).
+
 # RAILIANCE-WP-0004 - Establish ArgoCD GitOps Bootstrap Contract
 
 ## Goal
diff --git a/workplans/archived/260702-RAILIANCE-WP-0006-workload-kv-access-lanes.md b/workplans/archived/260702-RAILIANCE-WP-0006-workload-kv-access-lanes.md
index f1b9c96..12a35e9 100644
--- a/workplans/archived/260702-RAILIANCE-WP-0006-workload-kv-access-lanes.md
+++ b/workplans/archived/260702-RAILIANCE-WP-0006-workload-kv-access-lanes.md
@@ -20,6 +20,8 @@ related_state_hub_messages:
 state_hub_workstream_id: "96c8a93d-7a5a-4fa9-8f7b-865119551da3"
 ---
 
+> **Terminology note:** Historical text in this archived workplan may use the legacy term "workstream". The fleet term is **workplan** (`canon/standards/workplan-terminology-fleet_v0.1.md`).
+
 # RAILIANCE-WP-0006 - Workload KV Access Lanes for ops-warden Fetch
 
 ## Goal
diff --git a/workplans/archived/260702-RAILIANCE-WP-0007-credential-change-approval-workflow.md b/workplans/archived/260702-RAILIANCE-WP-0007-credential-change-approval-workflow.md
index 9123edc..ea98d6a 100644
--- a/workplans/archived/260702-RAILIANCE-WP-0007-credential-change-approval-workflow.md
+++ b/workplans/archived/260702-RAILIANCE-WP-0007-credential-change-approval-workflow.md
@@ -18,6 +18,8 @@ depends_on_workplans:
 state_hub_workstream_id: "4d7ce243-f40a-4249-a46a-a24f75d6fe4c"
 ---
 
+> **Terminology note:** Historical text in this archived workplan may use the legacy term "workstream". The fleet term is **workplan** (`canon/standards/workplan-terminology-fleet_v0.1.md`).
+
 # RAILIANCE-WP-0007 - Credential Change Proposal Review Workflow
 
 ## Goal
diff --git a/workplans/archived/RAIL-PL-WP-0001-platform-baseline.md b/workplans/archived/RAIL-PL-WP-0001-platform-baseline.md
index 0a13e16..645319b 100644
--- a/workplans/archived/RAIL-PL-WP-0001-platform-baseline.md
+++ b/workplans/archived/RAIL-PL-WP-0001-platform-baseline.md
@@ -13,6 +13,8 @@ created: "2026-03-11"
 updated: "2026-05-17"
 ---
 
+> **Terminology note:** Historical text in this archived workplan may use the legacy term "workstream". The fleet term is **workplan** (`canon/standards/workplan-terminology-fleet_v0.1.md`).
+
 # S3 Platform Services Baseline
 
 > **SUPERSEDED** by `RAIL-HO-WP-0004` (2026-03-26).