Report whether the Chrome extension bridge is connected and on what port. When disconnected, returns step-by-step setup guidance — call this first if any other tool fails to reach the browser.

List bookmarks as a flat array of {id, title, url, folder}. Optionally scope to a folder path (e.g. 'Bookmarks bar/Dev') to avoid returning the whole tree; omit to list everything.

List every folder with its id, title, depth, and full path — useful before adding/moving.

Search bookmarks by text in title or URL.

Return counts of bookmarks and folders.

Ensure a nested folder path exists (e.g. 'Bookmarks bar/Work/Reports'), creating missing levels. Returns the leaf folder. Top level must be 'Bookmarks bar', 'Other bookmarks', or 'Mobile bookmarks'.

Add a bookmark. Target a folder by folder_path (created if missing, default 'Bookmarks bar') or by parent_id. A folder_path's top level must be 'Bookmarks bar', 'Other bookmarks', or 'Mobile bookmarks'.

Create a folder under parent_path (created if missing, default 'Bookmarks bar') or parent_id. A parent_path's top level must be 'Bookmarks bar', 'Other bookmarks', or 'Mobile bookmarks'.

Update a node's title and/or a bookmark's URL, by id.

Move a node into a folder by to_path (created if missing) or to_parent_id. A to_path's top level must be 'Bookmarks bar', 'Other bookmarks', or 'Mobile bookmarks'.

Remove a bookmark by id, or a folder and its contents (set recursive=true for folders).

List groups of bookmarks that share the same URL.

Remove duplicate-URL bookmarks, keeping the first in each group. Use dry_run=true to preview without deleting.

Export the whole bookmark tree as portable JSON. If file_path is given, write it server-side and return the path; otherwise return the JSON.

Import a previously exported bookmark JSON file (see export_json) under a target folder. Recreates the tree; it does NOT deduplicate, so importing into a folder that already has the same bookmarks will create copies. Target via into_path (created if missing, default 'Other bookmarks') or into_parent_id.

Apply a catalogue plan TSV (columns: id, proposed, current, via, title, url). Creates each target folder and moves the bookmark into it. dry_run=true previews counts without changing anything. delete_junk=true also removes rows whose proposed folder is 'DELETE?'.

Sweep the tree and delete folders that contain no bookmarks (bottom-up), e.g. folders left empty after a re-catalogue. Skips the permanent roots. dry_run=true lists them without deleting.