diff --git a/packages/editor/src/index.tsx b/packages/editor/src/index.tsx
index 93b69ca7f..0500ce195 100644
--- a/packages/editor/src/index.tsx
+++ b/packages/editor/src/index.tsx
@@ -11,6 +11,12 @@ export { default as Editor } from './components/editor'
 // they're referenced throughout the editor's own internals; the public
 // surface uses the shorter, shell-friendly names from the unified
 // preset-system spec.
+// Headless-composition surface: lets embedders compose `<viewer>` +
+// tool routing + camera + keyboard directly (without mounting the full
+// `<editor>` chrome). Tool/affordance implementations stay kind-owned via
+// the registry (`def.tool` / `def.affordanceTools`); these exports are the
+// thin editor-side glue that routes and hosts them.
+export { CustomCameraControls } from './components/editor/custom-camera-controls'
 export { FloatingActionMenu as FloatingMenu } from './components/editor/floating-action-menu'
 export { formatMeasurement, MeasurementPill } from './components/editor/measurement-pill'
 export {
@@ -26,6 +32,15 @@ export {
 buildSvgArrowHeadPoints,
 getArcPlanPoint,
 } from './components/editor-2d/svg-paths'
+// Edit-affordance systems for kinds whose geometry editing lives outside
+// their registry tools (ceiling boundaries, roof slope handles, stair
+// segments, zone boundaries). Mounted by `<editor>` internally; exported so
+// self-composed shells get the same editing affordances.
+export { CeilingSelectionAffordanceSystem } from './components/systems/ceiling/ceiling-selection-affordance-system'
+export { CeilingSystem } from './components/systems/ceiling/ceiling-system'
+export { RoofEditSystem } from './components/systems/roof/roof-edit-system'
+export { StairEditSystem } from './components/systems/stair/stair-edit-system'
+export { ZoneSystem } from './components/systems/zone/zone-system'
 // Phase 5 Stage D transitional exports — pure drafting / angle helpers
 // consumed by kind-owned drag actions in @pascal-app/nodes. Stage F
 // cleanup moves these into @pascal-app/nodes (fence/drafting.ts +
@@ -58,6 +73,12 @@ export {
 type PlacementCoordinatorConfig,
 usePlacementCoordinator,
 } from './components/tools/item/use-placement-coordinator'
+// Screen-space marquee selection — mounted by `<editor>` internally;
+// exported for self-composed shells.
+export { BoxSelectTool } from './components/tools/select/box-select-tool'
+// Resolves a kind's drag affordance component from `def.affordanceTools`
+// (the registry contract) — the dispatcher `ToolManager` uses internally.
+export { getRegistryAffordanceTool } from './components/tools/shared/affordance-dispatch'
 export { CursorSphere } from './components/tools/shared/cursor-sphere'
 export { DragBoundingBox } from './components/tools/shared/drag-bounding-box'
 export { getFloorStackPreviewPosition } from './components/tools/shared/floor-stack-preview'
@@ -96,6 +117,11 @@ export {
 DEFAULT_STAIR_TYPE,
 DEFAULT_STAIR_WIDTH,
 } from './components/tools/stair/stair-defaults'
+// The tool router: reads `useEditor` (phase/mode/tool) + the node registry
+// and lazy-mounts the active kind-owned tool / affordance / legacy fallback.
+// The single component a self-composed shell mounts inside `<viewer>` to get
+// the complete interaction layer.
+export { ToolManager } from './components/tools/tool-manager'
 export {
 createWallOnCurrentLevel,
 getSegmentGridStep,
@@ -172,7 +198,7 @@ export type { SaveStatus } from './hooks/use-auto-save'
 // can express their affordances declaratively in their own folder.
 export { type UseDragActionArgs, useDragAction } from './hooks/use-drag-action'
 // Phase 5 Stage D — extras for kind-owned placement tools (FenceTool etc.).
-export { markToolCancelConsumed } from './hooks/use-keyboard'
+export { markToolCancelConsumed, useKeyboard } from './hooks/use-keyboard'
 export { type Selection, useSelection } from './hooks/use-selection'
 export {
 CEILING_ALIGNMENT_THRESHOLD_M,
@@ -286,6 +312,7 @@ export type {
 FloorplanSelectionTool,
 MovingFenceEndpoint,
 MovingWallEndpoint,
+ Phase,
 SplitOrientation,
 Tool,
 ToolDefaults,
</div><div class="naked_ctrl">
<form action="/index.cgi/contrast" method="get" name="gate">
<p><a href="http://altstyle.alfasado.net">AltStyle</a> によって変換されたページ <a href="https://patch-diff.githubusercontent.com/raw/pascalorg/editor/pull/396.diff">(-&gt;オリジナル)</a>
/ <label>アドレス: <input type="text" name="naked_post_url" value="https://patch-diff.githubusercontent.com/raw/pascalorg/editor/pull/396.diff" size="22" /></label> <label>モード: <select name="naked_post_mode">
<option value="default">デフォルト</option>
<option value="speech">音声ブラウザ</option>
<option value="ruby">ルビ付き</option>
<option value="contrast" selected="selected">配色反転</option>
<option value="larger-text">文字拡大</option>
<option value="mobile">モバイル</option>
</select>
<input type="submit" value="表示" />
</p>
</form>
</div>