diff --git a/docs/reference/plugin-manifest.md b/docs/reference/plugin-manifest.md
index 6f57b9ca093..93da71de22e 100644
--- a/docs/reference/plugin-manifest.md
+++ b/docs/reference/plugin-manifest.md
@@ -163,7 +163,7 @@ An editor for the listed files, shown in the editor tab beside Source. It must l
 | `extensions` | string[] | no | 1.4.245 | File-name suffixes, with the dot, this editor opens, ignoring case. A longer suffix such as `.excalidraw.json` wins over a shorter one, and a file named only the suffix never matches. At most 32. Example: `[".excalidraw",".excalidraw.json"]` |
 | `filenames` | string[] | no | 1.4.245 | Exact file names this editor opens, ignoring case; a name beats any extension. Names must be portable: no path separators, `.`, `..` or characters Windows forbids. At most 32. Example: `[]` |
 | `entry` | string | yes | 1.4.245 | HTML file rendered inside an editor frame, like a panel, or a `.ts`/`.tsx` module that Orca transpiles and loads in a generated page (needs `engines.orca` `>=1.4.246`). It receives the open document and posts edits back; it never gets a file path or file system. It is trusted code: install editors you trust. Relative to the plugin root; `..` segments and Windows device names such as `CON` are refused. Example: `"editor/index.html"` |
-| `priority` | `"default"` \| `"option"` | no | 1.4.245 | `default` (the default) opens matching files in this editor; `option` only offers it in the view toggle, so files open in Source. Files Orca opens itself (such as `.json`, `.ts`, `.md`, `.csv`, `.yaml`, lockfiles and `.env` files) always behave as `option`. Example: `"default"` |
+| `priority` | `"default"` \| `"option"` | no | 1.4.245 | `default` (the default) opens matching files in this editor; `option` only offers it in the view toggle, so files open in Source. Files Orca opens itself (such as `.json`, `.ts`, `.md`, `.csv`, `.yaml`, lockfiles and `.env` files) always behave as `option`; a longer suffix such as `.sketch.json` is not one of them and opens by default. Example: `"default"` |
 | `contentKind` | `"text"` \| `"bytes"` | no | 1.4.245 | `text` (the default) sends the file as text and accepts full-text edits. `bytes` sends the file's raw bytes, for binary formats such as spreadsheets, and accepts full-byte edits. Example: `"bytes"` |
 | `frame` | `"any"` \| `"isolated"` | no | 1.4.248 | `any` (the default) runs in whatever frame the client gives. `isolated` runs only in the desktop app's isolated frame, never the browser-client fallback: browser clients, and desktop with isolated frames switched off, open the file in Source with a notice that the editor needs the Orca desktop app. Example: `"isolated"` |
 
diff --git a/docs/schemas/plugins/orca-plugin.v2.schema.json b/docs/schemas/plugins/orca-plugin.v2.schema.json
index 103a11d655a..cae77596876 100644
--- a/docs/schemas/plugins/orca-plugin.v2.schema.json
+++ b/docs/schemas/plugins/orca-plugin.v2.schema.json
@@ -1116,7 +1116,7 @@
           ]
         },
         "priority": {
-          "description": "`default` (the default) opens matching files in this editor; `option` only offers it in the view toggle, so files open in Source. Files Orca opens itself (such as `.json`, `.ts`, `.md`, `.csv`, `.yaml`, lockfiles and `.env` files) always behave as `option`.",
+          "description": "`default` (the default) opens matching files in this editor; `option` only offers it in the view toggle, so files open in Source. Files Orca opens itself (such as `.json`, `.ts`, `.md`, `.csv`, `.yaml`, lockfiles and `.env` files) always behave as `option`; a longer suffix such as `.sketch.json` is not one of them and opens by default.",
           "x-orca-since": "1.4.245",
           "examples": [
             "default"