diff --git a/docs/api/README.md b/docs/api/README.md
index 2a91911..293d227 100644
--- a/docs/api/README.md
+++ b/docs/api/README.md
@@ -246,11 +246,20 @@ Clients subscribe via [`GET /events`](routes/events.md) (`text/event-stream`). A
 
 | Signal | Emitted by |
 |--------|------------|
-| `article-<sku>` | `PUT /article/{sku}/brand`, `PUT /article/{sku}/categories`, `PUT /article/{sku}/eans`, `POST /article/{sku}/image`, `DELETE /article/{sku}/image/{fullHash}`, `PUT /article/{sku}/images/order`, `PUT /article/{sku}/prices`, `POST /article/{sku}/supplier`, `PUT /article/{sku}/supplier/order`, `DELETE /article/{sku}/supplier/{id}`, `PATCH /article/{sku}/supplier/{id}`, `PUT /article/{sku}/track_stock`, `PUT /article/{sku}/weight` |
-| `articles` | `POST /article`, `DELETE /article/{sku}`, `PATCH /article/{sku}`, `DELETE /category/{id}` |
+| `article-<sku>` | `PUT /article/{sku}/brand`, `PUT /article/{sku}/categories`, `PUT /article/{sku}/eans`, `POST /article/{sku}/image`, `DELETE /article/{sku}/image/{fullHash}`, `PUT /article/{sku}/images/order`, `PUT /article/{sku}/prices`, `POST /article/{sku}/supplier`, `PUT /article/{sku}/supplier/order`, `DELETE /article/{sku}/supplier/{id}`, `PATCH /article/{sku}/supplier/{id}`, `PUT /article/{sku}/track_stock`, `PUT /article/{sku}/weight`, `POST /stock/adjust` |
+| `articles` | `POST /article`, `DELETE /article/{sku}`, `PATCH /article/{sku}`, `DELETE /category/{id}`, `POST /stock/adjust` |
+| `attributename` | `POST /attributename`, `PUT /attributename/order`, `DELETE /attributename/{id}`, `PATCH /attributename/{id}` |
 | `brand` | `POST /brand`, `DELETE /brand/{id}`, `PATCH /brand/{id}`, `DELETE /brand/{id}/image`, `POST /brand/{id}/image` |
 | `category` | `POST /category`, `PUT /category/order`, `DELETE /category/{id}`, `PATCH /category/{id}`, `DELETE /category/{id}/image`, `POST /category/{id}/image` |
+| `labeltemplate` | `POST /labeltemplate`, `DELETE /labeltemplate/{id}`, `PATCH /labeltemplate/{id}`, `PUT /labeltemplate/{id}` |
+| `ledger` | `POST /stock/adjust` |
+| `modelconversation` | `POST /modelconversation`, `DELETE /modelconversation/{id}` |
+| `modelconversation-<id>` | `POST /modelconversation/{id}/message` |
+| `printer` | `POST /printer`, `PUT /printer/order`, `DELETE /printer/{id}`, `PATCH /printer/{id}`, `PUT /printer/{id}` |
+| `propertyname` | `POST /propertyname`, `PUT /propertyname/order`, `DELETE /propertyname/{id}`, `PATCH /propertyname/{id}` |
+| `stock` | `POST /stock/adjust` |
 | `vfs` | `POST /vfs/mkdir`, `POST /vfs/rename`, `POST /vfs/upload`, `DELETE /vfs/{*path}`, `PUT /vfs/{*path}` |
+| `warehouse` | `POST /warehouse`, `PUT /warehouse/order`, `DELETE /warehouse/{id}`, `PUT /warehouse/{id}` |
 
 ## DESIGN
 
diff --git a/docs/api/routes-all.md b/docs/api/routes-all.md
index 6504c9a..7cb1bc4 100644
--- a/docs/api/routes-all.md
+++ b/docs/api/routes-all.md
@@ -214,8 +214,8 @@ _none_
 - Params: `body: { companyId: int }`
 - Returns: `200 { user: T34 }`
 #### List brands — `GET /brand`
-- Params: `query: offset?: int, limit?: int`
-- Returns: `200 { brands: { id: int, name: str, pics: T36[], gsprpinfo?: str|null }[], total: int, offset: int, limit: int }`
+- Params: `query: offset?: int, limit?: int, includeSmallThumbs?: bool`
+- Returns: `200 { brands: { id: int, name: str, pics: { fullHash: str, thumbW: int, thumbH: int, thumbHash: str, smallThumbW?: int|null, smallThumbH?: int|null, smallThumbBinary?: str|null }[], gsprpinfo?: str|null }[], total: int, offset: int, limit: int }`
 #### Create brand — `POST /brand`
 - Params: `body: { name: str, gsprpinfo?: str }`
 - Returns: `201 { brand: { id: int, name: str, pics: T36[], gsprpinfo?: str|null } }`
@@ -327,6 +327,15 @@ _none_
 #### Parse document (SSE) — `POST /delivery/parse`
 - Params: `form: { file: str }`
 - Returns: `200 SSE`
+
+- Events:
+  - `status`: `{ "message": "…" }`
+  - `llm_call`: `{ "model": "…", "promptSize": 0, "messages": 0 }`
+  - `tool_call`: `{ "name": "output_manifest" }`
+  - `usage`: `{ "input": 0, "cached": 0, "output": 0, "cost": 0 }`
+  - `progress`: `ManifestResult`
+  - `result`: `ManifestResult`
+  - `error`: `{ "message": "…" }`
 #### Delete delivery — `DELETE /delivery/{id}`
 - Params: `id: int`
 - Returns: `204 void`
@@ -384,6 +393,22 @@ _none_
 #### Subscribe to update signals (SSE) — `GET /events`
 _none_
 - Returns: `200 SSE`
+
+- Events:
+  - `category`: `{}`
+  - `articles`: `{}`
+  - `article-<sku>`: `{}`
+  - `stock`: `{}`
+  - `ledger`: `{}`
+  - `attributename`: `{}`
+  - `propertyname`: `{}`
+  - `labeltemplate`: `{}`
+  - `printer`: `{}`
+  - `warehouse`: `{}`
+  - `vfs`: `{}`
+  - `modelconversation`: `{}`
+  - `modelconversation-<id>`: `{}`
+  - `brand`: `{ sender, brandId }`
 #### Database health check — `GET /health`
 _none_
 - Returns: `200 { ok: bool }`
@@ -573,6 +598,12 @@ _none_
 #### Search images via Serper.dev and stream WebP thumbnails (SSE) — `POST /serper/images`
 - Params: `body: { q: str, gl?: str, hl?: str, num?: int, preferSource?: bool }`
 - Returns: `200 SSE`
+
+- Events:
+  - `images`: `{ "images": [ { "id": 0, "url": "…", "width": 1000, "height": 800 } ] }`
+  - `thumb`: `{ "id": 0, "dataUrl": "data:image/webp;base64,…" }`
+  - `done`: `{ "total": 100 }`
+  - `error`: `{ "error": "…" }`
 #### Delete shipping — `DELETE /shipping/{id}`
 - Params: `id: int`
 - Returns: `204 void`
diff --git a/docs/api/routes.md b/docs/api/routes.md
index 44fa3dc..b31365f 100644
--- a/docs/api/routes.md
+++ b/docs/api/routes.md
@@ -197,8 +197,8 @@ _none_
 _none_
 - Returns: `200 { message: str }`
 #### List brands — `GET /brand`
-- Params: `query: offset?: int, limit?: int`
-- Returns: `200 { brands: { id: int, name: str, pics: T32[], gsprpinfo?: str|null }[], total: int, offset: int, limit: int }`
+- Params: `query: offset?: int, limit?: int, includeSmallThumbs?: bool`
+- Returns: `200 { brands: { id: int, name: str, pics: { fullHash: str, thumbW: int, thumbH: int, thumbHash: str, smallThumbW?: int|null, smallThumbH?: int|null, smallThumbBinary?: str|null }[], gsprpinfo?: str|null }[], total: int, offset: int, limit: int }`
 #### Create brand — `POST /brand`
 - Params: `body: { name: str, gsprpinfo?: str }`
 - Returns: `201 { brand: { id: int, name: str, pics: T32[], gsprpinfo?: str|null } }`
diff --git a/docs/api/routes/attributename.post.md b/docs/api/routes/attributename.post.md
index e1a26c9..f7ef090 100644
--- a/docs/api/routes/attributename.post.md
+++ b/docs/api/routes/attributename.post.md
@@ -22,6 +22,10 @@ Creates an attribute name for the selected company.
 }
 ```
 
+## Signals
+
+On success, emits SSE signal: `attributename` (see [`GET /events`](../events.md)).
+
 ## Response `201`
 
 Created attribute name
diff --git a/docs/api/routes/attributename/_id.delete.md b/docs/api/routes/attributename/_id.delete.md
index ad289e6..7353654 100644
--- a/docs/api/routes/attributename/_id.delete.md
+++ b/docs/api/routes/attributename/_id.delete.md
@@ -12,6 +12,10 @@ Deletes an attribute name and cascades to attribute values and article assignmen
 |-------|----------|------|-------------|
 | `id` | yes | integer |  |
 
+## Signals
+
+On success, emits SSE signal: `attributename` (see [`GET /events`](../events.md)).
+
 ## Response `200`
 
 Deleted successfully
diff --git a/docs/api/routes/attributename/_id.patch.md b/docs/api/routes/attributename/_id.patch.md
index 6ea57a3..cf111ec 100644
--- a/docs/api/routes/attributename/_id.patch.md
+++ b/docs/api/routes/attributename/_id.patch.md
@@ -28,6 +28,10 @@ Updates name, sort, and/or exclusive flag for an attribute name.
 }
 ```
 
+## Signals
+
+On success, emits SSE signal: `attributename` (see [`GET /events`](../events.md)).
+
 ## Response `200`
 
 Updated attribute name
diff --git a/docs/api/routes/attributename/order.md b/docs/api/routes/attributename/order.md
index bbe0a01..c906354 100644
--- a/docs/api/routes/attributename/order.md
+++ b/docs/api/routes/attributename/order.md
@@ -20,6 +20,10 @@ Updates the display sort order of attribute names for the selected company.
 }
 ```
 
+## Signals
+
+On success, emits SSE signal: `attributename` (see [`GET /events`](../events.md)).
+
 ## Response `200`
 
 Reordered successfully
diff --git a/docs/api/routes/brand/list.md b/docs/api/routes/brand/list.md
index 8718f77..4ca4227 100644
--- a/docs/api/routes/brand/list.md
+++ b/docs/api/routes/brand/list.md
@@ -4,7 +4,7 @@ Protected. Requires a valid session cookie (`credentials: 'include'`).
 
 List brands
 
-Lists brands for the authenticated user's selected company, sorted by name. Paged; `total` is the unpaged count.
+Lists brands for the authenticated user's selected company, sorted by name. Paged; `total` is the unpaged count. Small-thumbnail fields are omitted by default. Set `includeSmallThumbs=true` to include each picture's `smallThumbW`, `smallThumbH`, and `smallThumbBinary` (base64-encoded AVIF bytes, resized with a 40px maximum edge).
 
 ## Query parameters
 
@@ -12,6 +12,7 @@ Lists brands for the authenticated user's selected company, sorted by name. Page
 |-------|----------|------|-------------|
 | `offset` | no | integer | Number of brands to skip |
 | `limit` | no | integer | Number of brands to return |
+| `includeSmallThumbs` | no | boolean | Include each picture's small thumbnail dimensions and base64 AVIF bytes. |
 
 ## Response `200`
 
@@ -29,7 +30,10 @@ Brand list
           "fullHash": "…",
           "thumbW": 1,
           "thumbH": 1,
-          "thumbHash": "…"
+          "thumbHash": "…",
+          "smallThumbW": 1,
+          "smallThumbH": 1,
+          "smallThumbBinary": "…"
         }
       ]
     }
@@ -44,7 +48,7 @@ Brand list
 
 | Status | Description |
 |--------|-------------|
-| 400 | Invalid offset, invalid limit, or no company selected — `{"error":"…"}` |
+| 400 | Invalid offset, invalid limit, invalid includeSmallThumbs, or no company selected — `{"error":"…"}` |
 | 401 | Unauthorized — `{"error":"…"}` |
 | 403 | Not authorized — `{"error":"…"}` |
 | 404 | Company not found — `{"error":"…"}` |
diff --git a/docs/api/routes/events.md b/docs/api/routes/events.md
index f32f1c6..74583de 100644
--- a/docs/api/routes/events.md
+++ b/docs/api/routes/events.md
@@ -24,21 +24,36 @@ to the company at connect time).
 
 ## Signals
 
-| Signal | Emitted after successful |
-|--------|--------------------------|
-| `category` | `POST /category`, `PATCH /category/{id}`, `PUT /category/order`, `DELETE /category/{id}`, `POST /category/{id}/image`, `DELETE /category/{id}/image` |
-| `articles` | `POST /article`, `PATCH /article/{sku}`, `DELETE /article/{sku}` |
-| `article-<sku>` | `PUT /article/{sku}/weight`, `PUT /article/{sku}/prices`, `PUT /article/{sku}/eans`, `PUT /article/{sku}/categories`, `PUT /article/{sku}/brand`, `PUT /article/{sku}/images/order`, `POST /article/{sku}/image`, `DELETE /article/{sku}/image/{fullHash}` |
-| `brand` | `POST /brand`, `PATCH /brand/{id}`, `DELETE /brand/{id}`, `POST /brand/{id}/image`, `DELETE /brand/{id}/image` |
+Every SSE event uses the event name as the signal id; payloads are
+JSON and most events send an empty object `{}`. Only `brand` emits a
+richer payload.
 
-The `brand` signal carries a JSON payload `{ sender, brandId }`:
-`sender` echoes the caller's `x-client-id` header (empty string if
-absent) so the sender can ignore its own event; `brandId` is the
-affected brand id (`null` only if unknown). Other signals send `{}`.
+| Signal | Payload | Emitted after successful |
+|--------|---------|--------------------------|
+| `category` | `{}` | `POST /category`, `PATCH /category/{id}`, `PUT /category/order`, `DELETE /category/{id}`, `POST /category/{id}/image`, `DELETE /category/{id}/image`, `PUT /category/{id}/property` |
+| `articles` | `{}` | `POST /article`, `PATCH /article/{sku}`, `DELETE /article/{sku}`, `PUT /article/{sku}/articles`-style list-level changes, `POST /category/{id}/article` and related article-assigning category mutations |
+| `article-<sku>` | `{}` | `PUT /article/{sku}/weight`, `PUT /article/{sku}/prices`, `PUT /article/{sku}/eans`, `PUT /article/{sku}/categories`, `PUT /article/{sku}/brand`, `PUT /article/{sku}/images/order`, `POST /article/{sku}/image`, `DELETE /article/{sku}/image/{fullHash}`, supplier/article-property mutations affecting the article |
+| `stock` | `{}` | `POST /stock/adjust` |
+| `ledger` | `{}` | `POST /stock/adjust` |
+| `attributename` | `{}` | `POST /attributename`, `PUT /attributename/order`, `PATCH /attributename/{id}`, `DELETE /attributename/{id}` |
+| `propertyname` | `{}` | `POST /propertyname`, `PUT /propertyname/order`, `PATCH /propertyname/{id}`, `DELETE /propertyname/{id}` |
+| `labeltemplate` | `{}` | `POST /labeltemplate`, `PUT /labeltemplate/{id}`, `PATCH /labeltemplate/{id}`, `DELETE /labeltemplate/{id}` |
+| `printer` | `{}` | `POST /printer`, `PUT /printer/{id}`, `PATCH /printer/{id}`, `DELETE /printer/{id}` |
+| `warehouse` | `{}` | `POST /warehouse`, `PUT /warehouse/{id}`, `PATCH /warehouse/{id}`, `DELETE /warehouse/{id}` |
+| `vfs` | `{}` | VFS uploads and filesystem mutations such as `POST /vfs/upload`, `POST /vfs/mkdir`, `POST /vfs/rename`, `PUT /vfs/{*path}`, `DELETE /vfs/{*path}` |
+| `modelconversation` | `{}` | `POST /modelconversation`, `DELETE /modelconversation/{id}` |
+| `modelconversation-<id>` | `{}` | Conversation-specific updates on the same model conversation thread; the concrete ID is used in the event name |
+| `brand` | `{ sender, brandId }` | `POST /brand`, `PATCH /brand/{id}`, `DELETE /brand/{id}`, `POST /brand/{id}/image`, `DELETE /brand/{id}/image` |
+
+The `brand` payload is `{ sender, brandId }`: `sender` echoes the
+caller's `x-client-id` header (empty string if absent) so the sender
+can ignore its own event; `brandId` is the affected brand id (`null`
+only if unknown). All other signals send `{}`.
 
 Signals are only sent when the mutation actually succeeds (2xx).
 Failed or no-op validation errors do not emit. The `article-<sku>`
-event name uses the concrete SKU (e.g. `article-42000045`).
+and `modelconversation-<id>` event names use the concrete item id at
+runtime (for example `article-42000045` and `modelconversation-123`).
 
 
 ## Response `200`
diff --git a/docs/api/routes/labeltemplate/create.md b/docs/api/routes/labeltemplate/create.md
index 69ab417..8a19a94 100644
--- a/docs/api/routes/labeltemplate/create.md
+++ b/docs/api/routes/labeltemplate/create.md
@@ -46,6 +46,10 @@ and stored with the template.
 }
 ```
 
+## Signals
+
+On success, emits SSE signal: `labeltemplate` (see [`GET /events`](../events.md)).
+
 ## Response `201`
 
 Created label template
diff --git a/docs/api/routes/labeltemplate/delete.md b/docs/api/routes/labeltemplate/delete.md
index cc334e1..f9fdca3 100644
--- a/docs/api/routes/labeltemplate/delete.md
+++ b/docs/api/routes/labeltemplate/delete.md
@@ -12,6 +12,10 @@ Deletes a label template for the authenticated user's selected company.
 |-------|----------|------|-------------|
 | `id` | yes | integer | Label template ID |
 
+## Signals
+
+On success, emits SSE signal: `labeltemplate` (see [`GET /events`](../events.md)).
+
 ## Response `204`
 
 Label template deleted
diff --git a/docs/api/routes/labeltemplate/update.md b/docs/api/routes/labeltemplate/update.md
index af2e343..7f1710e 100644
--- a/docs/api/routes/labeltemplate/update.md
+++ b/docs/api/routes/labeltemplate/update.md
@@ -51,6 +51,10 @@ When `content` (or `width`/`height`) is provided, the thumbnail is automatically
 }
 ```
 
+## Signals
+
+On success, emits SSE signal: `labeltemplate` (see [`GET /events`](../events.md)).
+
 ## Response `200`
 
 Updated label template
diff --git a/docs/api/routes/modelconversation.post.md b/docs/api/routes/modelconversation.post.md
index 4a13e69..d75d180 100644
--- a/docs/api/routes/modelconversation.post.md
+++ b/docs/api/routes/modelconversation.post.md
@@ -20,6 +20,10 @@ Creates a new conversation in state `idle`.
 }
 ```
 
+## Signals
+
+On success, emits SSE signal: `modelconversation` (see [`GET /events`](../events.md)).
+
 ## Response `201`
 
 Created conversation
diff --git a/docs/api/routes/modelconversation/_id.delete.md b/docs/api/routes/modelconversation/_id.delete.md
index 9965d48..a6f98dc 100644
--- a/docs/api/routes/modelconversation/_id.delete.md
+++ b/docs/api/routes/modelconversation/_id.delete.md
@@ -12,6 +12,10 @@ Deletes one of the authenticated user's model conversations and all its messages
 |-------|----------|------|-------------|
 | `id` | yes | integer | Conversation ID |
 
+## Signals
+
+On success, emits SSE signal: `modelconversation` (see [`GET /events`](../events.md)).
+
 ## Response `204`
 
 Conversation deleted
diff --git a/docs/api/routes/modelconversation/_id/message.post.md b/docs/api/routes/modelconversation/_id/message.post.md
index 545400e..5115234 100644
--- a/docs/api/routes/modelconversation/_id/message.post.md
+++ b/docs/api/routes/modelconversation/_id/message.post.md
@@ -34,6 +34,10 @@ Refused with 409 unless the conversation state is `idle`.
 }
 ```
 
+## Signals
+
+On success, emits SSE signal: `modelconversation-<id>` (see [`GET /events`](../events.md)).
+
 ## Response `201`
 
 Created message
diff --git a/docs/api/routes/printer/_id.put.md b/docs/api/routes/printer/_id.put.md
index 38ebb50..0766982 100644
--- a/docs/api/routes/printer/_id.put.md
+++ b/docs/api/routes/printer/_id.put.md
@@ -34,6 +34,10 @@ Updates specified fields of an existing printer for the selected company.
 }
 ```
 
+## Signals
+
+On success, emits SSE signal: `printer` (see [`GET /events`](../events.md)).
+
 ## Response `200`
 
 Updated printer
diff --git a/docs/api/routes/printer/create.md b/docs/api/routes/printer/create.md
index b2d3087..7d981a1 100644
--- a/docs/api/routes/printer/create.md
+++ b/docs/api/routes/printer/create.md
@@ -30,6 +30,10 @@ Creates a new printer for the selected company.
 }
 ```
 
+## Signals
+
+On success, emits SSE signal: `printer` (see [`GET /events`](../events.md)).
+
 ## Response `201`
 
 Created printer
diff --git a/docs/api/routes/printer/delete.md b/docs/api/routes/printer/delete.md
index 5852742..1232847 100644
--- a/docs/api/routes/printer/delete.md
+++ b/docs/api/routes/printer/delete.md
@@ -12,6 +12,10 @@ Deletes a printer for the authenticated user's selected company.
 |-------|----------|------|-------------|
 | `id` | yes | integer | Printer ID |
 
+## Signals
+
+On success, emits SSE signal: `printer` (see [`GET /events`](../events.md)).
+
 ## Response `204`
 
 Printer deleted
diff --git a/docs/api/routes/printer/order.md b/docs/api/routes/printer/order.md
index 5466aac..3a1d9ea 100644
--- a/docs/api/routes/printer/order.md
+++ b/docs/api/routes/printer/order.md
@@ -22,6 +22,10 @@ Reorders printers for the selected company.
 }
 ```
 
+## Signals
+
+On success, emits SSE signal: `printer` (see [`GET /events`](../events.md)).
+
 ## Response `200`
 
 Applied printer order
diff --git a/docs/api/routes/printer/update.md b/docs/api/routes/printer/update.md
index b0704f4..8683e00 100644
--- a/docs/api/routes/printer/update.md
+++ b/docs/api/routes/printer/update.md
@@ -34,6 +34,10 @@ Updates specified fields of an existing printer for the selected company.
 }
 ```
 
+## Signals
+
+On success, emits SSE signal: `printer` (see [`GET /events`](../events.md)).
+
 ## Response `200`
 
 Updated printer
diff --git a/docs/api/routes/propertyname.post.md b/docs/api/routes/propertyname.post.md
index accdf31..267c5e2 100644
--- a/docs/api/routes/propertyname.post.md
+++ b/docs/api/routes/propertyname.post.md
@@ -22,6 +22,10 @@ Creates a new property name for the selected company.
 }
 ```
 
+## Signals
+
+On success, emits SSE signal: `propertyname` (see [`GET /events`](../events.md)).
+
 ## Response `201`
 
 Created property name
diff --git a/docs/api/routes/propertyname/_id.delete.md b/docs/api/routes/propertyname/_id.delete.md
index 8665ecf..1e45c9f 100644
--- a/docs/api/routes/propertyname/_id.delete.md
+++ b/docs/api/routes/propertyname/_id.delete.md
@@ -12,6 +12,10 @@ Deletes a property name and cascades to article properties.
 |-------|----------|------|-------------|
 | `id` | yes | integer |  |
 
+## Signals
+
+On success, emits SSE signal: `propertyname` (see [`GET /events`](../events.md)).
+
 ## Response `200`
 
 Deleted successfully
diff --git a/docs/api/routes/propertyname/_id.patch.md b/docs/api/routes/propertyname/_id.patch.md
index 9876390..74ff654 100644
--- a/docs/api/routes/propertyname/_id.patch.md
+++ b/docs/api/routes/propertyname/_id.patch.md
@@ -28,6 +28,10 @@ Updates name and/or sort for a property name.
 }
 ```
 
+## Signals
+
+On success, emits SSE signal: `propertyname` (see [`GET /events`](../events.md)).
+
 ## Response `200`
 
 Updated property name
diff --git a/docs/api/routes/propertyname/order.md b/docs/api/routes/propertyname/order.md
index a34d3ad..d8b0caa 100644
--- a/docs/api/routes/propertyname/order.md
+++ b/docs/api/routes/propertyname/order.md
@@ -20,6 +20,10 @@ Updates the display sort order of property names for the selected company.
 }
 ```
 
+## Signals
+
+On success, emits SSE signal: `propertyname` (see [`GET /events`](../events.md)).
+
 ## Response `200`
 
 Reordered successfully
diff --git a/docs/api/routes/stock/adjust.md b/docs/api/routes/stock/adjust.md
index b3c53e9..1ff15f6 100644
--- a/docs/api/routes/stock/adjust.md
+++ b/docs/api/routes/stock/adjust.md
@@ -41,6 +41,10 @@ of type "adjustment", allocating a number from the "adjustment" number scheme.
 }
 ```
 
+## Signals
+
+On success, emits SSE signals: `stock`, `ledger`, `articles`, `article-<sku>` (see [`GET /events`](../events.md)).
+
 ## Response `201`
 
 Stock adjusted successfully
diff --git a/docs/api/routes/warehouse/_id.put.md b/docs/api/routes/warehouse/_id.put.md
index e2c5a56..47e8671 100644
--- a/docs/api/routes/warehouse/_id.put.md
+++ b/docs/api/routes/warehouse/_id.put.md
@@ -26,6 +26,10 @@ Updates specified fields of an existing warehouse for the selected company.
 }
 ```
 
+## Signals
+
+On success, emits SSE signal: `warehouse` (see [`GET /events`](../events.md)).
+
 ## Response `200`
 
 Updated warehouse
diff --git a/docs/api/routes/warehouse/create.md b/docs/api/routes/warehouse/create.md
index b703ac3..60fcb61 100644
--- a/docs/api/routes/warehouse/create.md
+++ b/docs/api/routes/warehouse/create.md
@@ -22,6 +22,10 @@ Sort order will be automatically appended if omitted.
 }
 ```
 
+## Signals
+
+On success, emits SSE signal: `warehouse` (see [`GET /events`](../events.md)).
+
 ## Response `201`
 
 Created warehouse
diff --git a/docs/api/routes/warehouse/delete.md b/docs/api/routes/warehouse/delete.md
index 725af0b..c773ae2 100644
--- a/docs/api/routes/warehouse/delete.md
+++ b/docs/api/routes/warehouse/delete.md
@@ -12,6 +12,10 @@ Deletes a warehouse if not in use in the ledger.
 |-------|----------|------|-------------|
 | `id` | yes | integer | Warehouse ID |
 
+## Signals
+
+On success, emits SSE signal: `warehouse` (see [`GET /events`](../events.md)).
+
 ## Response `204`
 
 Warehouse deleted
diff --git a/docs/api/routes/warehouse/order.md b/docs/api/routes/warehouse/order.md
index 207b4a9..12dca10 100644
--- a/docs/api/routes/warehouse/order.md
+++ b/docs/api/routes/warehouse/order.md
@@ -22,6 +22,10 @@ Reorders warehouses for the selected company.
 }
 ```
 
+## Signals
+
+On success, emits SSE signal: `warehouse` (see [`GET /events`](../events.md)).
+
 ## Response `200`
 
 Applied warehouse order
diff --git a/scripts/generateApiDocs.js b/scripts/generateApiDocs.js
index de5bb56..6ab1199 100644
--- a/scripts/generateApiDocs.js
+++ b/scripts/generateApiDocs.js
@@ -361,7 +361,7 @@ function renderOperation(apiPath, method, operation) {
     }
 
     const sseEvents = operation['x-sse-events'];
-    if (Array.isArray(sseEvents) && sseEvents.length) {
+    if (apiPath !== '/events' && Array.isArray(sseEvents) && sseEvents.length) {
         lines.push('## SSE Events');
         lines.push('');
         lines.push('The response is a `text/event-stream`. Events are emitted in order until the stream closes.');
@@ -773,12 +773,23 @@ function renderRoutesOverview(operations, title = 'Dash API Routes Overview') {
     for (const op of operations) {
         const params = summarizeOperationParams(op.operation, aliases);
         const returns = summarizeOperationReturns(op.operation, aliases);
+        const hasSseResponse = Object.values(op.operation.responses || {}).some((response) =>
+            Object.hasOwn(response.content || {}, 'text/event-stream'),
+        );
         const method = op.method.toUpperCase();
         const summary = (op.summary || '').replace(/[\r\n]+/g, ' ').trim();
         const heading = summary ? `${summary} — \`${method} ${op.path}\`` : `\`${method} ${op.path}\``;
         lines.push(`#### ${heading}`);
         lines.push(params === '—' ? '_none_' : `- Params: \`${params}\``);
         lines.push(returns === '—' ? '_no response body_' : `- Returns: \`${returns}\``);
+        const sseEvents = op.operation['x-sse-events'];
+        if (hasSseResponse && Array.isArray(sseEvents) && sseEvents.length) {
+            lines.push('');
+            lines.push('- Events:');
+            for (const event of sseEvents) {
+                lines.push(`  - \`${event.name}\`: \`${event.payload || '{}'}\``);
+            }
+        }
     }
     lines.push('');
     return lines.join('\n');
diff --git a/src/api/openapi.js b/src/api/openapi.js
index 8f86488..8761ce2 100644
--- a/src/api/openapi.js
+++ b/src/api/openapi.js
@@ -369,6 +369,47 @@
  *           description: Brand pictures sorted by sort
  *           items:
  *             $ref: '#/components/schemas/BrandPic'
+ *     BrandListPic:
+ *       type: object
+ *       required: [fullHash, thumbW, thumbH, thumbHash]
+ *       properties:
+ *         fullHash:
+ *           type: string
+ *         thumbW:
+ *           type: integer
+ *         thumbH:
+ *           type: integer
+ *         thumbHash:
+ *           type: string
+ *         smallThumbW:
+ *           type: integer
+ *           nullable: true
+ *           description: Width in pixels of the small AVIF thumbnail
+ *         smallThumbH:
+ *           type: integer
+ *           nullable: true
+ *           description: Height in pixels of the small AVIF thumbnail
+ *         smallThumbBinary:
+ *           type: string
+ *           format: byte
+ *           nullable: true
+ *           description: Base64-encoded small AVIF thumbnail bytes
+ *     BrandList:
+ *       type: object
+ *       required: [id, name, pics]
+ *       properties:
+ *         id:
+ *           type: integer
+ *         name:
+ *           type: string
+ *         gsprpinfo:
+ *           type: string
+ *           nullable: true
+ *         pics:
+ *           type: array
+ *           description: Brand pictures sorted by sort, including the 40px-edge small thumbnail
+ *           items:
+ *             $ref: '#/components/schemas/BrandListPic'
  *     ArticleBrand:
  *       type: object
  *       required: [name]
@@ -1619,4 +1660,3 @@
  */
 
 export {};
-
diff --git a/src/api/routes/attributename.js b/src/api/routes/attributename.js
index 6e2edd0..0c7f0c8 100644
--- a/src/api/routes/attributename.js
+++ b/src/api/routes/attributename.js
@@ -55,6 +55,7 @@ export function register(app, basePath = '') {
      *     description: Creates an attribute name for the selected company.
      *     security:
      *       - cookieAuth: []
+     *     x-signals: [attributename]
      *     requestBody:
      *       required: true
      *       content:
@@ -118,6 +119,7 @@ export function register(app, basePath = '') {
      *     description: Updates the display sort order of attribute names for the selected company.
      *     security:
      *       - cookieAuth: []
+     *     x-signals: [attributename]
      *     requestBody:
      *       required: true
      *       content:
@@ -162,6 +164,7 @@ export function register(app, basePath = '') {
      *     description: Updates name, sort, and/or exclusive flag for an attribute name.
      *     security:
      *       - cookieAuth: []
+     *     x-signals: [attributename]
      *     parameters:
      *       - in: path
      *         name: id
@@ -197,6 +200,7 @@ export function register(app, basePath = '') {
      *     description: Deletes an attribute name and cascades to attribute values and article assignments.
      *     security:
      *       - cookieAuth: []
+     *     x-signals: [attributename]
      *     parameters:
      *       - in: path
      *         name: id
diff --git a/src/api/routes/brand.js b/src/api/routes/brand.js
index 0b7f4a4..2745a15 100644
--- a/src/api/routes/brand.js
+++ b/src/api/routes/brand.js
@@ -47,7 +47,7 @@ export function register(app, basePath = '') {
      *   get:
      *     tags: [Brand]
      *     summary: List brands
-     *     description: Lists brands for the authenticated user's selected company, sorted by name. Paged; `total` is the unpaged count.
+     *     description: Lists brands for the authenticated user's selected company, sorted by name. Paged; `total` is the unpaged count. Small-thumbnail fields are omitted by default. Set `includeSmallThumbs=true` to include each picture's `smallThumbW`, `smallThumbH`, and `smallThumbBinary` (base64-encoded AVIF bytes, resized with a 40px maximum edge).
      *     security:
      *       - cookieAuth: []
      *     parameters:
@@ -66,6 +66,12 @@ export function register(app, basePath = '') {
      *           minimum: 1
      *           maximum: 100
      *         description: Number of brands to return
+     *       - in: query
+     *         name: includeSmallThumbs
+     *         schema:
+     *           type: boolean
+     *           default: false
+     *         description: Include each picture's small thumbnail dimensions and base64 AVIF bytes.
      *     x-markdown: brand/list.md
      *     responses:
      *       200:
@@ -79,7 +85,7 @@ export function register(app, basePath = '') {
      *                 brands:
      *                   type: array
      *                   items:
-     *                     $ref: '#/components/schemas/Brand'
+     *                     $ref: '#/components/schemas/BrandList'
      *                 total:
      *                   type: integer
      *                   description: Total number of unpaged brands
@@ -90,7 +96,7 @@ export function register(app, basePath = '') {
      *                   type: integer
      *                   description: Number of brands returned
      *       400:
-     *         description: Invalid offset, invalid limit, or no company selected
+     *         description: Invalid offset, invalid limit, invalid includeSmallThumbs, or no company selected
      *         content:
      *           application/json:
      *             schema:
@@ -122,6 +128,15 @@ export function register(app, basePath = '') {
 
         const rawOffset = req.query.offset;
         const rawLimit = req.query.limit;
+        const rawIncludeSmallThumbs = req.query.includeSmallThumbs;
+
+        if (
+            rawIncludeSmallThumbs !== undefined
+            && rawIncludeSmallThumbs !== 'true'
+            && rawIncludeSmallThumbs !== 'false'
+        ) {
+            return res.status(400).json({ error: 'includeSmallThumbs must be true or false' });
+        }
 
         let offset = 0;
         let limit = 10;
@@ -141,7 +156,11 @@ export function register(app, basePath = '') {
         }
 
         try {
-            const result = await db.list(req.user.id, { offset, limit });
+            const result = await db.list(req.user.id, {
+                offset,
+                limit,
+                includeSmallThumbs: rawIncludeSmallThumbs === 'true',
+            });
             res.status(200).json(result);
         } catch (error) {
             const status = brandErrorStatus(error);
diff --git a/src/api/routes/events.js b/src/api/routes/events.js
index d4aa8de..6504afc 100644
--- a/src/api/routes/events.js
+++ b/src/api/routes/events.js
@@ -33,24 +33,68 @@ export function register(app, basePath = '') {
      *
      *       ## Signals
      *
-     *       | Signal | Emitted after successful |
-     *       |--------|--------------------------|
-     *       | `category` | `POST /category`, `PATCH /category/{id}`, `PUT /category/order`, `DELETE /category/{id}`, `POST /category/{id}/image`, `DELETE /category/{id}/image` |
-     *       | `articles` | `POST /article`, `PATCH /article/{sku}`, `DELETE /article/{sku}` |
-     *       | `article-<sku>` | `PUT /article/{sku}/weight`, `PUT /article/{sku}/prices`, `PUT /article/{sku}/eans`, `PUT /article/{sku}/categories`, `PUT /article/{sku}/brand`, `PUT /article/{sku}/images/order`, `POST /article/{sku}/image`, `DELETE /article/{sku}/image/{fullHash}` |
-     *       | `brand` | `POST /brand`, `PATCH /brand/{id}`, `DELETE /brand/{id}`, `POST /brand/{id}/image`, `DELETE /brand/{id}/image` |
+     *       Every SSE event uses the event name as the signal id; payloads are
+     *       JSON and most events send an empty object `{}`. Only `brand` emits a
+     *       richer payload.
      *
-     *       The `brand` signal carries a JSON payload `{ sender, brandId }`:
-     *       `sender` echoes the caller's `x-client-id` header (empty string if
-     *       absent) so the sender can ignore its own event; `brandId` is the
-     *       affected brand id (`null` only if unknown). Other signals send `{}`.
+     *       | Signal | Payload | Emitted after successful |
+     *       |--------|---------|--------------------------|
+     *       | `category` | `{}` | `POST /category`, `PATCH /category/{id}`, `PUT /category/order`, `DELETE /category/{id}`, `POST /category/{id}/image`, `DELETE /category/{id}/image`, `PUT /category/{id}/property` |
+     *       | `articles` | `{}` | `POST /article`, `PATCH /article/{sku}`, `DELETE /article/{sku}`, `PUT /article/{sku}/articles`-style list-level changes, `POST /category/{id}/article` and related article-assigning category mutations |
+     *       | `article-<sku>` | `{}` | `PUT /article/{sku}/weight`, `PUT /article/{sku}/prices`, `PUT /article/{sku}/eans`, `PUT /article/{sku}/categories`, `PUT /article/{sku}/brand`, `PUT /article/{sku}/images/order`, `POST /article/{sku}/image`, `DELETE /article/{sku}/image/{fullHash}`, supplier/article-property mutations affecting the article |
+     *       | `stock` | `{}` | `POST /stock/adjust` |
+     *       | `ledger` | `{}` | `POST /stock/adjust` |
+     *       | `attributename` | `{}` | `POST /attributename`, `PUT /attributename/order`, `PATCH /attributename/{id}`, `DELETE /attributename/{id}` |
+     *       | `propertyname` | `{}` | `POST /propertyname`, `PUT /propertyname/order`, `PATCH /propertyname/{id}`, `DELETE /propertyname/{id}` |
+     *       | `labeltemplate` | `{}` | `POST /labeltemplate`, `PUT /labeltemplate/{id}`, `PATCH /labeltemplate/{id}`, `DELETE /labeltemplate/{id}` |
+     *       | `printer` | `{}` | `POST /printer`, `PUT /printer/{id}`, `PATCH /printer/{id}`, `DELETE /printer/{id}` |
+     *       | `warehouse` | `{}` | `POST /warehouse`, `PUT /warehouse/{id}`, `PATCH /warehouse/{id}`, `DELETE /warehouse/{id}` |
+     *       | `vfs` | `{}` | VFS uploads and filesystem mutations such as `POST /vfs/upload`, `POST /vfs/mkdir`, `POST /vfs/rename`, `PUT /vfs/{*path}`, `DELETE /vfs/{*path}` |
+     *       | `modelconversation` | `{}` | `POST /modelconversation`, `DELETE /modelconversation/{id}` |
+     *       | `modelconversation-<id>` | `{}` | Conversation-specific updates on the same model conversation thread; the concrete ID is used in the event name |
+     *       | `brand` | `{ sender, brandId }` | `POST /brand`, `PATCH /brand/{id}`, `DELETE /brand/{id}`, `POST /brand/{id}/image`, `DELETE /brand/{id}/image` |
+     *
+     *       The `brand` payload is `{ sender, brandId }`: `sender` echoes the
+     *       caller's `x-client-id` header (empty string if absent) so the sender
+     *       can ignore its own event; `brandId` is the affected brand id (`null`
+     *       only if unknown). All other signals send `{}`.
      *
      *       Signals are only sent when the mutation actually succeeds (2xx).
      *       Failed or no-op validation errors do not emit. The `article-<sku>`
-     *       event name uses the concrete SKU (e.g. `article-42000045`).
+     *       and `modelconversation-<id>` event names use the concrete item id at
+     *       runtime (for example `article-42000045` and `modelconversation-123`).
      *     security:
      *       - cookieAuth: []
      *     x-markdown: events.md
+     *     x-sse-events:
+     *       - name: category
+     *         payload: "{}"
+     *       - name: articles
+     *         payload: "{}"
+     *       - name: article-<sku>
+     *         payload: "{}"
+     *       - name: stock
+     *         payload: "{}"
+     *       - name: ledger
+     *         payload: "{}"
+     *       - name: attributename
+     *         payload: "{}"
+     *       - name: propertyname
+     *         payload: "{}"
+     *       - name: labeltemplate
+     *         payload: "{}"
+     *       - name: printer
+     *         payload: "{}"
+     *       - name: warehouse
+     *         payload: "{}"
+     *       - name: vfs
+     *         payload: "{}"
+     *       - name: modelconversation
+     *         payload: "{}"
+     *       - name: modelconversation-<id>
+     *         payload: "{}"
+     *       - name: brand
+     *         payload: "{ sender, brandId }"
      *     responses:
      *       200:
      *         description: |
diff --git a/src/api/routes/labeltemplate.js b/src/api/routes/labeltemplate.js
index 03df190..4a98fa4 100644
--- a/src/api/routes/labeltemplate.js
+++ b/src/api/routes/labeltemplate.js
@@ -176,6 +176,7 @@ export function register(app, basePath = '') {
      *       and stored with the template.
      *     security:
      *       - cookieAuth: []
+     *     x-signals: [labeltemplate]
      *     x-markdown: labeltemplate/create.md
      *     requestBody:
      *       required: true
@@ -293,6 +294,7 @@ export function register(app, basePath = '') {
      *       When `content` (or `width`/`height`) is provided, the thumbnail is automatically re-rendered.
      *     security:
      *       - cookieAuth: []
+     *     x-signals: [labeltemplate]
      *     x-markdown: labeltemplate/update.md
      *     parameters:
      *       - in: path
@@ -343,6 +345,7 @@ export function register(app, basePath = '') {
      *       When `content` (or `width`/`height`) is provided, the thumbnail is automatically re-rendered.
      *     security:
      *       - cookieAuth: []
+     *     x-signals: [labeltemplate]
      *     x-markdown: labeltemplate/update.md
      *     parameters:
      *       - in: path
@@ -398,6 +401,7 @@ export function register(app, basePath = '') {
      *     description: Deletes a label template for the authenticated user's selected company.
      *     security:
      *       - cookieAuth: []
+     *     x-signals: [labeltemplate]
      *     x-markdown: labeltemplate/delete.md
      *     parameters:
      *       - in: path
diff --git a/src/api/routes/modelconversation.js b/src/api/routes/modelconversation.js
index c5e57d8..c77002d 100644
--- a/src/api/routes/modelconversation.js
+++ b/src/api/routes/modelconversation.js
@@ -104,6 +104,7 @@ export function register(app, basePath = '') {
      *     description: Creates a new conversation in state `idle`.
      *     security:
      *       - cookieAuth: []
+     *     x-signals: [modelconversation]
      *     requestBody:
      *       required: true
      *       content:
@@ -248,6 +249,7 @@ export function register(app, basePath = '') {
      *     description: Deletes one of the authenticated user's model conversations and all its messages.
      *     security:
      *       - cookieAuth: []
+     *     x-signals: [modelconversation]
      *     parameters:
      *       - in: path
      *         name: id
@@ -493,6 +495,7 @@ export function register(app, basePath = '') {
      *       Refused with 409 unless the conversation state is `idle`.
      *     security:
      *       - cookieAuth: []
+     *     x-signals: [modelconversation-<id>]
      *     parameters:
      *       - in: path
      *         name: id
diff --git a/src/api/routes/printer.js b/src/api/routes/printer.js
index ea5e652..129da4d 100644
--- a/src/api/routes/printer.js
+++ b/src/api/routes/printer.js
@@ -103,6 +103,7 @@ export function register(app, basePath = '') {
      *       `printerIds` must include all existing printer IDs exactly once.
      *     security:
      *       - cookieAuth: []
+     *     x-signals: [printer]
      *     x-markdown: printer/order.md
      *     requestBody:
      *       required: true
@@ -253,6 +254,7 @@ export function register(app, basePath = '') {
      *       `type` must be `"esc/pos"` (lines), `"zpl"` (pages), or `"ipp"`.
      *     security:
      *       - cookieAuth: []
+     *     x-signals: [printer]
      *     x-markdown: printer/create.md
      *     requestBody:
      *       required: true
@@ -355,6 +357,7 @@ export function register(app, basePath = '') {
      *     description: Updates specified fields of an existing printer for the selected company.
      *     security:
      *       - cookieAuth: []
+     *     x-signals: [printer]
      *     parameters:
      *       - in: path
      *         name: id
@@ -409,6 +412,7 @@ export function register(app, basePath = '') {
      *     description: Updates specified fields of an existing printer for the selected company.
      *     security:
      *       - cookieAuth: []
+     *     x-signals: [printer]
      *     parameters:
      *       - in: path
      *         name: id
@@ -469,6 +473,7 @@ export function register(app, basePath = '') {
      *     description: Deletes a printer for the authenticated user's selected company.
      *     security:
      *       - cookieAuth: []
+     *     x-signals: [printer]
      *     parameters:
      *       - in: path
      *         name: id
diff --git a/src/api/routes/propertyname.js b/src/api/routes/propertyname.js
index 57bac86..3c33c16 100644
--- a/src/api/routes/propertyname.js
+++ b/src/api/routes/propertyname.js
@@ -61,6 +61,7 @@ export function register(app, basePath = '') {
      *     description: Creates a new property name for the selected company.
      *     security:
      *       - cookieAuth: []
+     *     x-signals: [propertyname]
      *     requestBody:
      *       required: true
      *       content:
@@ -130,6 +131,7 @@ export function register(app, basePath = '') {
      *     description: Updates the display sort order of property names for the selected company.
      *     security:
      *       - cookieAuth: []
+     *     x-signals: [propertyname]
      *     requestBody:
      *       required: true
      *       content:
@@ -176,6 +178,7 @@ export function register(app, basePath = '') {
      *     description: Updates name and/or sort for a property name.
      *     security:
      *       - cookieAuth: []
+     *     x-signals: [propertyname]
      *     parameters:
      *       - in: path
      *         name: id
@@ -211,6 +214,7 @@ export function register(app, basePath = '') {
      *     description: Deletes a property name and cascades to article properties.
      *     security:
      *       - cookieAuth: []
+     *     x-signals: [propertyname]
      *     parameters:
      *       - in: path
      *         name: id
diff --git a/src/api/routes/stock.js b/src/api/routes/stock.js
index 406dbd0..37ea118 100644
--- a/src/api/routes/stock.js
+++ b/src/api/routes/stock.js
@@ -71,6 +71,7 @@ export function register(app, basePath = '') {
      *       **Note:** `sku` must be a string (e.g. `"25"`), not a number. For single-item adjustments, provide `sku` and `amount` at top-level. For batch adjustments, provide `lines: [{ sku, amount, ... }]`.
      *     security:
      *       - cookieAuth: []
+     *     x-signals: [stock, ledger, articles, article-<sku>]
      *     x-markdown: stock/adjust.md
      *     requestBody:
      *       required: true
diff --git a/src/api/routes/warehouse.js b/src/api/routes/warehouse.js
index 971e6cd..81f7ead 100644
--- a/src/api/routes/warehouse.js
+++ b/src/api/routes/warehouse.js
@@ -104,6 +104,7 @@ export function register(app, basePath = '') {
      *       `warehouseIds` must include all existing warehouse IDs exactly once.
      *     security:
      *       - cookieAuth: []
+     *     x-signals: [warehouse]
      *     x-markdown: warehouse/order.md
      *     requestBody:
      *       required: true
@@ -254,6 +255,7 @@ export function register(app, basePath = '') {
      *       Sort order will be automatically appended if omitted.
      *     security:
      *       - cookieAuth: []
+     *     x-signals: [warehouse]
      *     x-markdown: warehouse/create.md
      *     requestBody:
      *       required: true
@@ -408,6 +410,7 @@ export function register(app, basePath = '') {
      *     description: Updates specified fields of an existing warehouse for the selected company.
      *     security:
      *       - cookieAuth: []
+     *     x-signals: [warehouse]
      *     parameters:
      *       - in: path
      *         name: id
@@ -474,6 +477,7 @@ export function register(app, basePath = '') {
      *     description: Deletes a warehouse if not in use in the ledger.
      *     security:
      *       - cookieAuth: []
+     *     x-signals: [warehouse]
      *     parameters:
      *       - in: path
      *         name: id
diff --git a/src/tools/javascript-worker.js b/src/tools/javascript-worker.js
index a61dd83..5286d9e 100644
--- a/src/tools/javascript-worker.js
+++ b/src/tools/javascript-worker.js
@@ -10,7 +10,19 @@ import ExcelJS from 'exceljs';
 import PDFDocument from 'pdfkit';
 import { createVfs } from './vfs.js';
 
-const { code, root, vmTimeout, bufferLimit, network, dashbackUrl, dashbackToken, vfsDir, googleAuthId } = workerData;
+const {
+    code,
+    root,
+    vmTimeout,
+    bufferLimit,
+    network,
+    dashbackUrl,
+    dashbackToken,
+    vfsDir,
+    googleAuthId,
+    appletInput,
+    appletFile,
+} = workerData;
 
 function resolveDashbackUrl(inputUrl, baseApiUrl) {
     const raw = String(inputUrl || '').trim();
@@ -582,7 +594,13 @@ try {
     let value;
     let failed = null;
     try {
-        value = vm.run(code, 'javascript_execute.js');
+        value = vm.run(code, appletFile || 'javascript_execute.js');
+        if (appletFile) {
+            if (typeof value !== 'function') {
+                throw new TypeError('Applet must assign an exported function to module.exports.');
+            }
+            value = value(appletInput);
+        }
         if (value && typeof value.then === 'function') {
             const settleTimeout = Math.max(1000, vmTimeout - 500);
             value = await Promise.race([
diff --git a/src/tools/javascript.js b/src/tools/javascript.js
index 9194286..94988eb 100644
--- a/src/tools/javascript.js
+++ b/src/tools/javascript.js
@@ -1,10 +1,11 @@
 import { Worker } from 'worker_threads';
 import { fileURLToPath } from 'url';
+import fs from 'fs';
 import path from 'path';
 import jwt from 'jsonwebtoken';
 import { defineTool, ToolError } from 'libllmorbiter';
 import env from '../config/env.js';
-import { prepareVfs, syncVfsToDb } from './vfs.js';
+import { createVfs, prepareVfs, syncVfsToDb } from './vfs.js';
 
 const __dirname = path.dirname(fileURLToPath(import.meta.url));
 const ROOT_DIR = path.resolve(__dirname, '../..');
@@ -20,7 +21,7 @@ const DEFAULT_BUFFER_LIMIT = 32 * 1024 * 1024;
 // so warning per message floods the log. We warn once per distinct key instead.
 const WATCH_NOISE_WARNED = new Set();
 
-function runInWorker({ code, timeoutMs, vfsRoot, googleAuthId }) {
+function runInWorker({ code, timeoutMs, vfsRoot, googleAuthId, appletInput, appletFile }) {
     return new Promise((resolve) => {
         let settled = false;
         const token = jwt.sign({ id: googleAuthId }, env.jwtSecret, { expiresIn: '5m' });
@@ -35,6 +36,8 @@ function runInWorker({ code, timeoutMs, vfsRoot, googleAuthId }) {
                 dashbackToken: token,
                 vfsDir: vfsRoot,
                 googleAuthId,
+                appletInput,
+                appletFile,
             },
         });
 
@@ -104,6 +107,67 @@ function runInWorker({ code, timeoutMs, vfsRoot, googleAuthId }) {
     });
 }
 
+function readApplet(vfsRoot, appletvfsfile) {
+    if (typeof appletvfsfile !== 'string' || !appletvfsfile.trim()) {
+        throw new ToolError('"appletvfsfile" must be a non-empty VFS-relative file path.');
+    }
+    const appletPath = appletvfsfile.trim();
+    if (path.isAbsolute(appletPath) || /^[a-zA-Z]:/.test(appletPath) || appletPath.startsWith('vfs:')) {
+        throw new ToolError('"appletvfsfile" must be a VFS-relative file path.');
+    }
+    if (!appletPath.toLowerCase().endsWith('.applet.js')) {
+        throw new ToolError('"appletvfsfile" must refer to a .applet.js file.');
+    }
+
+    const vfs = createVfs(vfsRoot);
+    let source;
+    try {
+        const diskPath = vfs.resolveReadPath(appletPath);
+        const realRoot = fs.realpathSync(vfsRoot);
+        const realPath = fs.realpathSync(diskPath);
+        const relativePath = path.relative(realRoot, realPath);
+        if (relativePath.startsWith('..') || path.isAbsolute(relativePath)) {
+            throw new ToolError(`Applet "${appletPath}" resolves outside the VFS.`);
+        }
+        if (!fs.statSync(realPath).isFile()) {
+            throw new ToolError(`Applet "${appletPath}" is not a file.`);
+        }
+        source = fs.readFileSync(realPath, 'utf8');
+    } catch (err) {
+        if (err instanceof ToolError) throw err;
+        throw new ToolError(`Unable to read applet "${appletPath}" from the VFS: ${err.message}`);
+    }
+
+    const lines = source.replace(/^\uFEFF/, '').split(/\r?\n/, 3);
+    const inputHeader = lines[0]?.match(/^\/\/ @applet-input-schema (.+)$/);
+    const outputHeader = lines[1]?.match(/^\/\/ @applet-output-schema (.+)$/);
+    if (!inputHeader || !outputHeader) {
+        throw new ToolError(
+            'Applet metadata must be on the first two lines: ' +
+            '`// @applet-input-schema {JSON Schema}` followed by ' +
+            '`// @applet-output-schema {JSON Schema}`.'
+        );
+    }
+
+    let inputSchema;
+    let outputSchema;
+    try {
+        inputSchema = JSON.parse(inputHeader[1]);
+        outputSchema = JSON.parse(outputHeader[1]);
+    } catch (err) {
+        throw new ToolError(`Applet metadata must contain valid JSON schemas: ${err.message}`);
+    }
+    if (!inputSchema || typeof inputSchema !== 'object' || Array.isArray(inputSchema) ||
+        inputSchema.type !== 'object') {
+        throw new ToolError('Applet input schema must be a JSON Schema with type "object".');
+    }
+    if (!outputSchema || typeof outputSchema !== 'object' || Array.isArray(outputSchema)) {
+        throw new ToolError('Applet output schema must be a JSON Schema object.');
+    }
+
+    return source;
+}
+
 function formatSandboxError(code, report) {
     const errName = report.errorName || 'Error';
     const msg = report.error || 'Unknown error';
@@ -122,7 +186,10 @@ export function createJavascriptExecuteTool({ googleAuthId }) {
     return defineTool({
         name: 'javascript_execute',
         description:
-            'Execute JS in isolated worker sandbox. Assign `module.exports` to return value (sync value or Promise; wrap async in IIFE: `module.exports = (async () => { ... })()`). ' +
+            'Execute JS in an isolated worker sandbox using either inline `code` or a VFS applet. Provide exactly one of `code` and `appletvfsfile`. ' +
+            'Applets are the preferred method when the first execution may throw: save a `.applet.js` file in the VFS so it can be inspected and further edited with `patch`, then call it by VFS path. ' +
+            'Applet files must start with `// @applet-input-schema {JSON Schema}` and `// @applet-output-schema {JSON Schema}` on their first two lines. The input schema describes the GUI form passed as `applet_input`; the output schema describes the exported function result. Export a function that receives `applet_input`. ' +
+            'Inline code: assign `module.exports` to return value (sync value or Promise; wrap async in IIFE: `module.exports = (async () => { ... })()`). ' +
             'REST API: `await fetch("/path")` (authenticated). ' +
             'VFS: directly use global `fs.readFileSync`/`writeFileSync` for binary artifacts/buffers/images (`image/` is read-only; paths must be relative paths, root is not allowed). VFS can host a static website (HTML, CSS, JS, images, etc.). ' +
             'Embed generated images/links in markdown: `![alt](relative/path)`. Internet links use `https://...` or `hostname.com`/`hostname.com/filename`; a pure relative file with no dotted hostname is always a VFS relative path. Use find_files/read_file/patch for text. ' +
@@ -131,7 +198,6 @@ export function createJavascriptExecuteTool({ googleAuthId }) {
         parameters: {
             type: 'object',
             additionalProperties: false,
-            required: ['code'],
             properties: {
                 note: {
                     type: ['string', 'null'],
@@ -139,7 +205,16 @@ export function createJavascriptExecuteTool({ googleAuthId }) {
                 },
                 code: {
                     type: 'string',
-                    description: 'JavaScript code. Assign result to `module.exports`. Async code must use IIFE. Do not use require() or import.',
+                    description: 'Optional inline JavaScript code. Provide exactly one of this and appletvfsfile. Assign result to `module.exports`. Async code must use IIFE. Do not use require() or import.',
+                },
+                appletvfsfile: {
+                    type: 'string',
+                    description: 'Optional VFS-relative path to a .applet.js file. Provide exactly one of this and code. The file must begin with the two applet JSON Schema metadata lines described in the tool description.',
+                },
+                applet_input: {
+                    type: 'object',
+                    description: 'Input values passed to the exported function when running appletvfsfile. Omit to pass an empty object.',
+                    additionalProperties: true,
                 },
                 timeout: {
                     type: ['number', 'null'],
@@ -151,17 +226,48 @@ export function createJavascriptExecuteTool({ googleAuthId }) {
                 },
             },
         },
-        invoke: async ({ code, timeout = DEFAULT_TIMEOUT_MS, max_output = DEFAULT_MAX_OUTPUT, note }) => {
-            if (typeof code !== 'string' || !code.trim()) {
-                throw new ToolError('"code" must be a non-empty string.');
+        invoke: async ({
+            code,
+            appletvfsfile,
+            applet_input,
+            timeout = DEFAULT_TIMEOUT_MS,
+            max_output = DEFAULT_MAX_OUTPUT,
+            note,
+        }) => {
+            const hasCode = typeof code === 'string' && Boolean(code.trim());
+            const hasApplet = typeof appletvfsfile === 'string' && Boolean(appletvfsfile.trim());
+            if (hasCode === hasApplet) {
+                throw new ToolError('Provide exactly one of "code" or "appletvfsfile".');
+            }
+            if (code != null && !hasCode) {
+                throw new ToolError('"code" must be a non-empty string when provided.');
+            }
+            if (appletvfsfile != null && !hasApplet) {
+                throw new ToolError('"appletvfsfile" must be a non-empty VFS-relative file path.');
+            }
+            if (hasCode && applet_input !== undefined) {
+                throw new ToolError('"applet_input" can only be provided with "appletvfsfile".');
+            }
+            if (applet_input !== undefined &&
+                (!applet_input || typeof applet_input !== 'object' || Array.isArray(applet_input))) {
+                throw new ToolError('"applet_input" must be an object.');
             }
             const hardTimeout = Math.min(Math.max(1000, Number(timeout) || DEFAULT_TIMEOUT_MS), MAX_TIMEOUT_MS);
             const maxOutput = Math.max(1000, Number(max_output) || DEFAULT_MAX_OUTPUT);
 
             const vfsRoot = await prepareVfs({ googleAuthId });
+            const isApplet = hasApplet;
+            const source = isApplet ? readApplet(vfsRoot, appletvfsfile) : code;
             let report;
             try {
-                report = await runInWorker({ code, timeoutMs: hardTimeout, vfsRoot, googleAuthId });
+                report = await runInWorker({
+                    code: source,
+                    timeoutMs: hardTimeout,
+                    vfsRoot,
+                    googleAuthId,
+                    appletInput: isApplet ? (applet_input ?? {}) : undefined,
+                    appletFile: isApplet ? appletvfsfile.trim() : undefined,
+                });
             } finally {
                 await syncVfsToDb({ googleAuthId, vfsRoot });
             }
@@ -173,7 +279,7 @@ export function createJavascriptExecuteTool({ googleAuthId }) {
             }
 
             if (report.error) {
-                throw new ToolError(formatSandboxError(code, report));
+                throw new ToolError(formatSandboxError(source, report));
             }
 
             // The worker ALWAYS reports a `result` key (javascript-worker.js). Its absence