@@ -118,8 +118,9 @@ const McpAuthMiddlewareLive = HttpRouter.middleware<{
  * the agent a notice instead, so a snapshot that carries the full
  * accessibility tree and page text loses its locators too. Claude Code also
  * shows the model `structuredContent` in place of the text blocks when a
- * result has both, so both carry the same bounded snapshot. Keep it near 20k
- * characters and tell the agent what was cut.
+ * result has both, so both carry the same bounded snapshot. Keep it near
+ * 20 KB and tell the agent what was cut. The short `omitted` notes may go a
+ * little over; the provider limit is far above this.
  */
 export const MAX_SNAPSHOT_TEXT_BYTES = 20_000;
 const MAX_SNAPSHOT_VISIBLE_TEXT_CHARS = 8_000;
 
@@ -119,7 +119,7 @@ const PreviewSetAppearanceTool = safeBrowserTool(
 export const PreviewSnapshotTool = readonlyBrowserTool(
   Tool.make("preview_snapshot", {
     description:
-      "Inspect a page before interacting. Pass tabId to inspect a specific tab; omit it to use this agent session's current tab. Returns page state, semantic elements, diagnostics, action history, and a PNG screenshot. The text is capped near 20k characters and lists what it omitted; use preview_evaluate to read more. Set includeImage=false for text-only output with the same page metadata. Set save=true to also write the PNG to disk and get screenshotPath back; with includeImage=false, save=true returns only the url and screenshotPath. Embed that path in your reply as ![alt](screenshotPath) so the user sees it. This is the only way to show the user a screenshot; the image in the tool result is not saved anywhere.",
+      "Inspect a page before interacting. Pass tabId to inspect a specific tab; omit it to use this agent session's current tab. Returns page state, semantic elements, diagnostics, action history, and a PNG screenshot. The text is capped near 20 KB and lists what it omitted; use preview_evaluate to read more. Set includeImage=false for text-only output with the same page metadata. Set save=true to also write the PNG to disk and get screenshotPath back; with includeImage=false, save=true returns only the url and screenshotPath. Embed that path in your reply as ![alt](screenshotPath) so the user sees it. This is the only way to show the user a screenshot; the image in the tool result is not saved anywhere.",
     parameters: Schema.Struct({
       ...PreviewAutomationTabTargetInput.fields,
       includeImage: Schema.optional(