> For clean Markdown of any page, append .md to the page URL.
> For a complete documentation index, see https://docs.knapsack.cloud/llms.txt.
> For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://docs.knapsack.cloud/_mcp/server.

## Fixed tabs breaking after a block was deleted (v4.104.9)

Deleting a block and then adding a page's first tab before the undo message closed could leave the tab pointing at the deleted block, with only a "Could not find block with id" message and no tab bar. Deleting a block now removes it from every place it's listed.

If a page already refers to a missing block, editors see a banner in its place with a **Remove Block** button, and viewers see nothing. The Doctor also removes missing blocks from page tabs, so drafts already saved in this state load normally.

## Doctor appears in the settings menu for Contributors (v4.104.9)

Contributors could open the Doctor but couldn't find it. It now appears under **Settings** > **Tools** > **Doctor** for every role that can use it, and in the app menu and command bar.