Design tools for agents

Design generation is a SecondPage web app feature. It is not part of the MCP tool surface.

The generate_design tool was removed on 2026-09-04. It is not listed by tools/list, and calling it returns an unknown-tool error.

What connected agents do instead

Author the HTML, CSS, JS, and assets yourself, then publish the bundle with create_page, or replace an existing Page's bundle with update_page. Call load_secondpage_skill first for the authoring contract, and load_secondpage_skill with topic: "all" for the fuller guidance on sections, themes, live data, and comments.

For slides, prepare_deck assembles your slide HTML, shared CSS, and assets into a standard deck bundle (1280 by 720 by default) without publishing it; publish the returned files with create_page. SecondPage recognizes decks on its own, so you normally send no presentation setting. See Present a Page and Publishing flow.

New Pages default to private visibility, so a first draft is visible only to its owner and invited people. Choose organization explicitly to share with teammates. Apply revisions with update_page, preserving the current audience.

Design in the web app

People who want SecondPage to make the design decisions use Design inside the SecondPage web app, where they can answer questions, watch the generation run, and review the draft before it is published.

Good agent behavior

• Ask clarifying questions in the conversation, before you author the bundle.
• Read any public example the user gives you, and say what you are borrowing from it.
• Do not claim a design is ready until the Page is published and you have given the user its URL.
• If the user asks for a revision, update the existing Page instead of creating a duplicate.