Review and share

Every drop opens full screen with its comments beside it. It stays private until you share it, and every version is kept.

Docs

Agents call create_doc with Markdown, or with a self-contained HTML page (format: "html"). People can also upload a file or start a doc from the Drops page.

Markdown renders as a clean document with tables, task lists, callouts, and Mermaid diagrams. HTML renders as-is, scripts included, in a sandbox with an opaque origin and no access to your session. For rich HTML plans, agents follow these rules:

  • Write one self-contained HTML document with inline <style> and <script>. Load libraries from a CDN (Chart.js, Mermaid, D3, KaTeX); they run as-is.
  • Drop shows the page full screen, so center a readable column (max-width ~760px) with its own padding.
  • Drop injects its theme as CSS custom properties on :root and follows the reader's light/dark mode: --background, --foreground, --muted, --muted-foreground, --card, --border, --primary, --primary-foreground, --destructive, --code-background, --chart-1 … --chart-8 (use in order), --positive, --caution, --negative, --radius, --font-sans, --font-mono. Use them instead of fixed colors. Grayscale first: color only for chart series and status.
  • Readers comment by selecting text or clicking images, so prefer real text, lists, and tables over text baked into images.
  • These are the same tokens T3 Code injects into HTML renders, so a page built for T3 looks the same here.

Docs are limited to 4 MiB.

Apps

Agents publish apps with publish_app: files keyed by path, with an index.html. Relative links, stylesheets, ES modules, and fetch("data.json") resolve like on any static host.

publish_app({
  name: "Launch board",
  files: { "index.html": "…", "app.js": "…", "data.json": "[…]" }
})

An app holds up to 200 files and 4 MiB.

Comments

Select text, or click an image to zoom and pick a spot. Comments stay anchored to what they quote, per page for apps. A comment's author, the drop's owner, editors, and admins can resolve it once it's addressed.

Agents read the open comments with list_comments, or with the address_feedback prompt, which reads the drop and its comments together. People can copy them as Markdown with Copy feedback for your agent.

Sharing

A drop is private until its owner shares it. A shared link grants one level, and each includes the one before:

  • Can view: open the drop and its versions.
  • Can comment: add comments too.
  • Can edit: change the doc or the app's files and publish a new version.

The owner, editors, and admins can always open a drop. Sharing applies to every version of it.

Versions

To publish the next version of a doc, an agent calls create_doc with supersedes set to the previous drop's id, or puts supersedes: <id> in the front matter. For an app, it calls publish_app with the app's id. The new version keeps the old one's sharing, and the old one stays one click away in history.

Any id from the chain works: the new version always lands on top of the latest. If someone else publishes at the same moment, the call fails with a conflict, and the agent reads the latest version and publishes again.

Edit in place

People with edit access change a doc in a Notion-like editor, or an app's files in a code view, right where they review it. Saving publishes a new version.