diff --git a/discussion/index.ndjson b/discussion/index.ndjson
index 36948f8..98c5ad1 100644
--- a/discussion/index.ndjson
+++ b/discussion/index.ndjson
@@ -1,2 +1,2 @@
 {"type":"meta","next_id":{"DSC":2,"AGD":2,"DEC":2,"PLN":5,"LSN":1,"CLSN":1}}
-{"type":"discussion","id":"DSC-0001","status":"accepted","ticket":"world-editor-journey-spec","title":"World Editor / Journey Spec","created_at":"2026-06-19","updated_at":"2026-06-19","tags":["world-editor","journey","stage-contract","architecture"],"agendas":[{"id":"AGD-0001","file":"AGD-0001-world-editor-journey-spec.md","status":"accepted","created_at":"2026-06-19","updated_at":"2026-06-19"}],"decisions":[{"id":"DEC-0001","file":"DEC-0001-world-editor-journey-v1.md","status":"accepted","created_at":"2026-06-19","updated_at":"2026-06-19","ref_agenda":"AGD-0001"}],"plans":[{"id":"PLN-0001","file":"PLN-0001-world-journey-spec.md","status":"review","created_at":"2026-06-19","updated_at":"2026-06-19","ref_decisions":["DEC-0001"]},{"id":"PLN-0002","file":"PLN-0002-journey-runtime-model.md","status":"review","created_at":"2026-06-19","updated_at":"2026-06-19","ref_decisions":["DEC-0001"]},{"id":"PLN-0003","file":"PLN-0003-world-editor-authoring.md","status":"review","created_at":"2026-06-19","updated_at":"2026-06-19","ref_decisions":["DEC-0001"]},{"id":"PLN-0004","file":"PLN-0004-journey-commit-validation.md","status":"review","created_at":"2026-06-19","updated_at":"2026-06-19","ref_decisions":["DEC-0001"]}],"lessons":[]}
+{"type":"discussion","id":"DSC-0001","status":"accepted","ticket":"world-editor-journey-spec","title":"World Editor / Journey Spec","created_at":"2026-06-19","updated_at":"2026-06-19","tags":["world-editor","journey","stage-contract","architecture"],"agendas":[{"id":"AGD-0001","file":"AGD-0001-world-editor-journey-spec.md","status":"accepted","created_at":"2026-06-19","updated_at":"2026-06-19"}],"decisions":[{"id":"DEC-0001","file":"DEC-0001-world-editor-journey-v1.md","status":"accepted","created_at":"2026-06-19","updated_at":"2026-06-19","ref_agenda":"AGD-0001"}],"plans":[{"id":"PLN-0001","file":"PLN-0001-world-journey-spec.md","status":"done","created_at":"2026-06-19","updated_at":"2026-06-19","ref_decisions":["DEC-0001"]},{"id":"PLN-0002","file":"PLN-0002-journey-runtime-model.md","status":"review","created_at":"2026-06-19","updated_at":"2026-06-19","ref_decisions":["DEC-0001"]},{"id":"PLN-0003","file":"PLN-0003-world-editor-authoring.md","status":"review","created_at":"2026-06-19","updated_at":"2026-06-19","ref_decisions":["DEC-0001"]},{"id":"PLN-0004","file":"PLN-0004-journey-commit-validation.md","status":"review","created_at":"2026-06-19","updated_at":"2026-06-19","ref_decisions":["DEC-0001"]}],"lessons":[]}
diff --git a/discussion/workflow/plans/PLN-0001-world-journey-spec.md b/discussion/workflow/plans/PLN-0001-world-journey-spec.md
index 63b48aa..462d05e 100644
--- a/discussion/workflow/plans/PLN-0001-world-journey-spec.md
+++ b/discussion/workflow/plans/PLN-0001-world-journey-spec.md
@@ -2,7 +2,7 @@
 id: PLN-0001
 ticket: world-editor-journey-spec
 title: World Editor / Journey V1 Spec
-status: review
+status: done
 created: 2026-06-19
 decisions:
   - DEC-0001
diff --git a/specs/world-editor-journey-v1.md b/specs/world-editor-journey-v1.md
new file mode 100644
index 0000000..c669dc8
--- /dev/null
+++ b/specs/world-editor-journey-v1.md
@@ -0,0 +1,229 @@
+# World Editor / Journey V1 Specification
+
+Source decision: `discussion/workflow/decisions/DEC-0001-world-editor-journey-v1.md`
+
+## Purpose
+
+The World Editor defines the macro-world contract for Gardens of Nil. It does not edit internal Stage content. Journey is the runtime-readable logical graph published from the World Editor.
+
+This specification defines the V1 authoring and runtime boundary.
+
+## Ownership Boundary
+
+The World Editor SHALL own:
+
+- macro WorldLayers;
+- WorldTile occupancy;
+- logical Stage placement;
+- Journey endpoints;
+- Journey connections;
+- commit-time validation;
+- publication of logical Journey data.
+
+The Stage Editor SHALL own:
+
+- internal Stage geometry;
+- floors inside a Stage;
+- Stage props;
+- Stage objects;
+- Stage scene generation;
+- Stage bake.
+
+The World Editor commit MUST NOT create Stage scenes, Stage geometry, internal Stage objects, or baked Stage content.
+
+## Authoring Asset
+
+`WorldLayoutSO` is the editor-only authoring ScriptableObject for the World Editor.
+
+`WorldLayoutSO` MUST contain:
+
+- a stable layout id;
+- `worldTileSize`, defaulting to `24m`;
+- `worldLayerHeight`, defaulting to `24m`;
+- authoring Stage records;
+- occupied WorldTiles per Stage;
+- authoring endpoint records;
+- authoring connection records;
+- editor metadata.
+
+`worldTileSize` and `worldLayerHeight` MUST be configurable. V1 defaults are `24m`.
+
+`WorldLayoutSO` MAY reference editor-only Stage authoring data, including `StageDefinition`, but runtime code MUST NOT consume `WorldLayoutSO`.
+
+## Runtime Asset
+
+`JGraphSO` is the runtime Journey ScriptableObject.
+
+Journey elements MUST use the `J` prefix. Journey ScriptableObjects MUST also use the `SO` suffix.
+
+`JGraphSO` MUST contain:
+
+- `sourceWorldLayoutId`;
+- `publishedAt`;
+- `schemaVersion`;
+- optional `contentHash`;
+- `JStage` records;
+- `JEndpoint` records;
+- `JConnection` records.
+
+Runtime Journey code MUST consume `JGraphSO`. Runtime Journey code MUST NOT depend on `WorldLayoutSO`, `StageDefinition`, or any type under `Assets/Scripts/Editor`.
+
+## World Model
+
+The World Editor is 2D per `WorldLayer`.
+
+A Stage:
+
+- belongs to exactly one `WorldLayer`;
+- occupies a set of WorldTiles;
+- MUST NOT overlap another Stage on the same WorldLayer tile.
+
+A WorldTile can be occupied by at most one Stage within a WorldLayer.
+
+All physical space MUST belong to a Stage. `JConnection` MUST NOT own physical space. If a corridor, transition room, long lift, loading mask, or similar physical traversal space is needed, it MUST be represented as a Stage.
+
+## JStage
+
+`JStage` is the runtime logical representation of a Stage inside `JGraphSO`.
+
+`JStage` MUST have a stable GUID/string id. Tags MAY be used for classification and lookup, but tags MUST NOT replace stable identity.
+
+`JStage` is not Stage scene generation data and is not Stage bake data.
+
+## Endpoints
+
+Initial endpoint types are:
+
+- `JEndpointSocket`;
+- `JEndpointAnchor`;
+- `JEndpointLift`.
+
+Every endpoint MUST have:
+
+- a stable GUID/string id;
+- an owning `JStage` id;
+- a WorldTile coordinate;
+- an endpoint type;
+- a required/optional flag.
+
+### JEndpointSocket
+
+`JEndpointSocket` represents a physical side connection on a free tile face.
+
+It MUST:
+
+- exist only on a free face of a Stage WorldTile;
+- use one of `North`, `South`, `East`, or `West`;
+- accept at most one `JConnection`;
+- connect only to another `JEndpointSocket`.
+
+Socket-to-socket physical connections MUST connect opposite faces on adjacent WorldTiles.
+
+### JEndpointAnchor
+
+`JEndpointAnchor` represents an abstract travel point such as a portal, hub, or fast-travel anchor.
+
+It MAY have multiple `JConnections`. Runtime destination selection for multi-connection anchors is outside V1.
+
+### JEndpointLift
+
+`JEndpointLift` represents macro vertical travel between WorldLayers.
+
+It MUST:
+
+- accept exactly one `JConnection` in V1;
+- connect only to another `JEndpointLift`;
+- align on the same 2D WorldTile coordinate as its paired lift;
+- connect across different WorldLayers.
+
+## Endpoint Coexistence
+
+A WorldTile MAY contain sockets and one non-socket endpoint.
+
+`JEndpointAnchor` and `JEndpointLift` MUST NOT coexist on the same WorldTile.
+
+Sockets MAY coexist with anchors or lifts.
+
+## Connections
+
+`JConnection` is a logical edge between exactly two endpoints.
+
+`JConnection` MUST:
+
+- have a stable GUID/string id;
+- reference endpoint A by id;
+- reference endpoint B by id;
+- connect endpoints of compatible type;
+- not own physical space.
+
+Endpoint compatibility in V1 is same-type only:
+
+- socket to socket;
+- anchor to anchor;
+- lift to lift.
+
+Directionality MAY be represented in V1. Concrete requirement modeling and loading hints are outside V1, but `JConnection` SHOULD remain extensible so those fields can be added later.
+
+## Commit Flow
+
+The World Editor SHALL publish Journey data through an explicit commit action.
+
+The commit action MUST:
+
+- validate `WorldLayoutSO`;
+- abort if commit-blocking errors exist;
+- allow publication when only warnings exist;
+- create or update `JGraphSO`;
+- write `JStage`, `JEndpoint`, and `JConnection` records;
+- write publication metadata.
+
+The commit action MUST NOT:
+
+- generate Stage scenes;
+- generate Stage geometry;
+- generate internal Stage objects;
+- run Stage bake;
+- write Stage Editor content.
+
+## Validation
+
+Commit-blocking errors include:
+
+- same-layer WorldTile overlap between Stages;
+- connection referencing a missing endpoint;
+- connection linking an endpoint to itself;
+- incompatible endpoint types;
+- socket with more than one connection;
+- socket on an internal Stage face;
+- socket connected to a non-opposite or non-adjacent socket;
+- anchor and lift on the same WorldTile;
+- lift connected to a lift with a different 2D coordinate;
+- required endpoint without connection.
+
+Warnings include:
+
+- optional endpoint without connection;
+- Stage without endpoints;
+- authoring metadata missing from non-critical fields.
+
+## Editor Technology
+
+World Editor V1 SHALL use the same window technology as the existing Stage Editor:
+
+- `EditorWindow`;
+- UI Toolkit via `UnityEngine.UIElements` and `UnityEditor.UIElements`;
+- custom canvas based on `VisualElement.generateVisualContent`.
+
+Stage Editor integration remains manual in V1.
+
+## V1 Non-Goals
+
+V1 does not include:
+
+- loading hints;
+- streaming policies;
+- concrete `JRequirement` structures;
+- runtime destination selection UI or logic for multi-connection anchors;
+- deep Stage Editor marker sync;
+- automatic Stage Editor opening from the World Editor;
+- unified World/Stage Editor shell.