Subframe

Enables an AI agent to read and write a product's design screens on a shared, versioned canvas: creating and editing HTML screens and shared parts, taking screenshots, linking flows, posting comments and annotations, and opening or approving proposals. Every drawing is returned with its screenshot so the agent can see what it produced, letting screens persist and evolve across chats instead of starting from zero.

Provides an editable, locally persisted design canvas inside the Codex desktop app, letting an agent create and modify frames, text, vectors, groups, and layouts through MCP tools. Humans can review, drag, pan, zoom, and undo alongside the agent, with edits autosaved to disk and exportable as images, SVG, design JSX, or .fig backups.

Enables AI-driven UI/UX design and prototyping in Figma by letting agents generate AutoLayout screens, modify canvas elements, and wire interactive prototype flows through natural language.

Open-source multiplayer design canvas (alternative to Paper.design) with a built-in MCP server. Agents create and stream HTML artboards live next to human collaborators, review them via screenshots, comment on elements, search icons/images/logos and follow shared design guidelines.