@@ -18,6 +18,6 @@ The model: `type` says how the form lays out its sections. Where a form opens is
 - **FROM → TO.** `type: 'split'` → `type: 'tabbed'` (one tab per section) or delete the value for `simple`; delete each section's `pane` and the form's `splitSize` / `splitResizable`; declare `subforms` to edit child records beside the parent. `type: 'drawer'` or `type: 'modal'` → delete the value for `simple`, or write the layout you want. A list opens a clicked record as its `navigation.mode` says (the drawer by default), and the console's New and Edit entries open the record form themselves, sized by the form's `modalSize`.
 - **The one-line fix.** Delete the retired value and the three split-only keys. `os migrate meta --from 17` lists the edits for existing sources, and `--write` applies them. A stored `sys_metadata` row is converted when it is read (the `form-view-presentation-types-removed` conversion), so a form view saved with one of the three values keeps loading as a `simple` form.
 - **What the parse says.** Each retired value is refused by name with its prescription, for example "'modal' was removed from the form view `type` enum in @objectstack/spec 18.3.0 (ADR-0050) — …", at every form view door (a view's `form` and `formViews.*`, a form view item record, a flattened form overlay) and at `defineStack` as `STACK_SCHEMA_INVALID` / 422. `pane`, `splitSize` and `splitResizable` are refused on every layout. TypeScript rejects each at the authoring site. A misspelt value keeps zod's own message.
-- **Unchanged.** `splitDirection`, `drawerSide`, `drawerWidth` and `modalSize` stay declared: the console reads `modalSize` for its record dialog, and the React `ObjectForm` block contract still takes the other three from this schema until its renderer follows.
+- **Unchanged.** `modalSize` stays declared: the console reads it for its record dialog. `splitDirection` (#27159) and `drawerSide` / `drawerWidth` (#29012) retire from the form view in the same release; the React `ObjectForm` block keeps the drawer pair as its own props.
 
 The console (`@object-ui/app-shell`): Studio's New View form offers the three form layouts only. It offered all six, and a form view created with `split`, `drawer` or `modal` would now be refused when saved.
@@ -0,0 +1,23 @@
+---
+'@objectstack/spec': minor
+'@objectstack/skills': patch
+---
+
+feat(spec)!: a form view no longer declares `drawerSide` / `drawerWidth`; no form view opens in a drawer, so neither key was ever read there
+
+Clause-②: no (narrowing)
+
+Metadata-protocol: narrowed
+
+Skills-docs: regenerated here — `skills/objectstack-ui/references/react-blocks.md` (`gen:react-blocks`) lists `<ObjectForm>`'s `drawerSide` / `drawerWidth` as binding props from the block's overlay instead of data props from the form view schema, with the same types; `drawerWidth`'s description drops the form view's `[DEPRECATED → size buckets]` tag (the block's drawer has no size bucket) and says the value is the drawer's width, or its height from the top or bottom edge; no hand-written file under `skills/**` teaches either key on a form view (a `git grep` of `skills/` names only that contract and `rules/record-page.md`'s list-drawer width on `navigation`, which this does not touch).
+
+<!-- adr-0087: registered form-view-drawer-keys-removed, ui-form-view-drawer-keys-retired -->
+
+**BREAKING** accept-set narrowing on the form view surface (`@objectstack/spec`), ADR-0049 enforce-or-remove.
+
+`type: 'drawer'` left the form view earlier in this release, so no form view opens in a drawer. No form-view surface read the two keys either: the console's form page, its New and Edit dialogs, the record form page and Studio all ignored them, so a form view saved with `drawerSide: 'left', drawerWidth: '480px'` was accepted, served and drawn exactly as one without them.
+
+- **FROM → TO.** `form: { …, drawerSide, drawerWidth }` (and `formViews.<key>`, a form view item's `config`) → `form: { … }`. Nothing on the form view replaces them. A list opens a clicked record in its drawer (`navigation.mode`) and sizes it with the `navigation.size` bucket; a React page that opens a form in a drawer writes the props on the block, `ObjectForm` with `formType='drawer'`.
+- **The one-line fix.** Delete `drawerSide` and `drawerWidth` from the form view. `os migrate meta --from 17` lists the edits for existing sources, and `--write` applies them. A stored `sys_metadata` row is converted when it is read (the `form-view-drawer-keys-removed` conversion), so a form view saved with the keys keeps loading, and nothing a reader sees changes.
+- **What the parse says.** "`view.form.drawerSide` was removed in @objectstack/spec 18.3.0 (ADR-0049) — no form view opens in a drawer, so no form view ever read it. …" (and the same for `drawerWidth`), at every form view door (a view's `form` and `formViews.*`, a form view item record, a flattened form overlay) and at `defineStack` as `STACK_SCHEMA_INVALID` / 422. TypeScript rejects the keys at the authoring site.
+- **Unchanged.** The React `ObjectForm` block still takes `drawerSide` / `drawerWidth` for the drawer it opens with `formType='drawer'`: the react-tier contract now declares them on the block itself, with the same types and descriptions. The `object-form` page block keeps both in its own props. `modalSize` stays on the form view; the console's record dialog reads it.
@@ -1916,8 +1916,8 @@ The published metadata item body, opaque by ruling (1C). Shape is the item's own
 | **splitDirection** | `never` | optional | [REMOVED] `view.form.splitDirection` was removed in @objectstack/spec 18.3.0 (ADR-0050) — it set the pane orientation of a split form, and the split form renderer retired in the same release, so no form draws panes. Delete the key. Run `os migrate meta --from 17` to list the mechanical edits for existing sources; `--write` applies the ones it can prove, and you apply the rest by hand. |
 | **splitSize** | `never` | optional | [REMOVED] `view.form.splitSize` was removed in @objectstack/spec 18.3.0 (ADR-0050) — it sized the primary pane of a `type: 'split'` form, and `split` left the form view `type` in the same release, so no form view draws panes. Delete the key. Run `os migrate meta --from 17` to list the mechanical edits for existing sources; `--write` applies the ones it can prove, and you apply the rest by hand. |
 | **splitResizable** | `never` | optional | [REMOVED] `view.form.splitResizable` was removed in @objectstack/spec 18.3.0 (ADR-0050) — it made the panes of a `type: 'split'` form resizable, and `split` left the form view `type` in the same release, so no form view draws panes. Delete the key. Run `os migrate meta --from 17` to list the mechanical edits for existing sources; `--write` applies the ones it can prove, and you apply the rest by hand. |
-| **drawerSide** | `Enum<'top' \| 'bottom' \| 'left' \| 'right'>` | optional | Edge the drawer container opens from, when the React `ObjectForm` block opens this form with formType 'drawer' |
-| **drawerWidth** | `string` | optional | [DEPRECATED → size buckets] Width of the drawer container the React `ObjectForm` block opens with formType 'drawer', e.g. "480px". A pixel width cannot be chosen without knowing the client viewport — the renderer derives it. |
+| **drawerSide** | `never` | optional | [REMOVED] `view.form.drawerSide` was removed in @objectstack/spec 18.3.0 (ADR-0049) — no form view opens in a drawer, so no form view ever read it. Delete the key: a list opens a clicked record in its drawer (`navigation.mode`), and the React `ObjectForm` block keeps its own `drawerSide` prop for the drawer it opens with `formType='drawer'`. Run `os migrate meta --from 17` to list the mechanical edits for existing sources; `--write` applies the ones it can prove, and you apply the rest by hand. |
+| **drawerWidth** | `never` | optional | [REMOVED] `view.form.drawerWidth` was removed in @objectstack/spec 18.3.0 (ADR-0049) — no form view opens in a drawer, so no form view ever read it, and a pixel width cannot be chosen without knowing the client viewport. Delete the key: a list's record drawer takes its starting width from the `navigation.size` bucket, and the React `ObjectForm` block keeps its own `drawerWidth` prop for the drawer it opens. Run `os migrate meta --from 17` to list the mechanical edits for existing sources; `--write` applies the ones it can prove, and you apply the rest by hand. |
 | **modalSize** | `Enum<'sm' \| 'default' \| 'lg' \| 'xl' \| 'full'>` | optional | Size bucket of the dialog a caller opens this form in: the console's New / Edit dialog, or the modal container of the React `ObjectForm` block (formType 'modal') |
 | **data** | `{ provider: 'object'; object: string } \| { provider: 'value'; items: any[] } \| { provider: 'schema'; schemaId: string; schema?: Record<string, any> }` | optional | Data source configuration (defaults to "object" provider) |
 | **sections** | `{ name?: string; label?: string \| Record<string, string>; description?: string; collapsible?: boolean; … }[]` | optional |  |
@@ -1995,8 +1995,8 @@ The published metadata item body, opaque by ruling (1C). Shape is the item's own
 | **splitDirection** | `never` | optional | [REMOVED] `view.form.splitDirection` was removed in @objectstack/spec 18.3.0 (ADR-0050) — it set the pane orientation of a split form, and the split form renderer retired in the same release, so no form draws panes. Delete the key. Run `os migrate meta --from 17` to list the mechanical edits for existing sources; `--write` applies the ones it can prove, and you apply the rest by hand. |
 | **splitSize** | `never` | optional | [REMOVED] `view.form.splitSize` was removed in @objectstack/spec 18.3.0 (ADR-0050) — it sized the primary pane of a `type: 'split'` form, and `split` left the form view `type` in the same release, so no form view draws panes. Delete the key. Run `os migrate meta --from 17` to list the mechanical edits for existing sources; `--write` applies the ones it can prove, and you apply the rest by hand. |
 | **splitResizable** | `never` | optional | [REMOVED] `view.form.splitResizable` was removed in @objectstack/spec 18.3.0 (ADR-0050) — it made the panes of a `type: 'split'` form resizable, and `split` left the form view `type` in the same release, so no form view draws panes. Delete the key. Run `os migrate meta --from 17` to list the mechanical edits for existing sources; `--write` applies the ones it can prove, and you apply the rest by hand. |
-| **drawerSide** | `Enum<'top' \| 'bottom' \| 'left' \| 'right'>` | optional | Edge the drawer container opens from, when the React `ObjectForm` block opens this form with formType 'drawer' |
-| **drawerWidth** | `string` | optional | [DEPRECATED → size buckets] Width of the drawer container the React `ObjectForm` block opens with formType 'drawer', e.g. "480px". A pixel width cannot be chosen without knowing the client viewport — the renderer derives it. |
+| **drawerSide** | `never` | optional | [REMOVED] `view.form.drawerSide` was removed in @objectstack/spec 18.3.0 (ADR-0049) — no form view opens in a drawer, so no form view ever read it. Delete the key: a list opens a clicked record in its drawer (`navigation.mode`), and the React `ObjectForm` block keeps its own `drawerSide` prop for the drawer it opens with `formType='drawer'`. Run `os migrate meta --from 17` to list the mechanical edits for existing sources; `--write` applies the ones it can prove, and you apply the rest by hand. |
+| **drawerWidth** | `never` | optional | [REMOVED] `view.form.drawerWidth` was removed in @objectstack/spec 18.3.0 (ADR-0049) — no form view opens in a drawer, so no form view ever read it, and a pixel width cannot be chosen without knowing the client viewport. Delete the key: a list's record drawer takes its starting width from the `navigation.size` bucket, and the React `ObjectForm` block keeps its own `drawerWidth` prop for the drawer it opens. Run `os migrate meta --from 17` to list the mechanical edits for existing sources; `--write` applies the ones it can prove, and you apply the rest by hand. |
 | **modalSize** | `Enum<'sm' \| 'default' \| 'lg' \| 'xl' \| 'full'>` | optional | Size bucket of the dialog a caller opens this form in: the console's New / Edit dialog, or the modal container of the React `ObjectForm` block (formType 'modal') |
 | **data** | `{ provider: 'object'; object: string } \| { provider: 'value'; items: any[] } \| { provider: 'schema'; schemaId: string; schema?: Record<string, any> }` | optional | Data source configuration (defaults to "object" provider) |
 | **sections** | `{ name?: string; label?: string \| Record<string, string>; description?: string; collapsible?: boolean; … }[]` | optional |  |