Boards

A board is a small app in a folder: an HTML page plus optional scripts. Persephone opens it in a tab like any other page. Your AI agent can write a board, open it, click through it, fix what it finds, and hand you a tool that already works.

A real session: asked for a todo board, Claude reads the guide, writes the board, opens it and tests it — then adds priorities and due dates on a follow-up request.

Core features

• Just a folder. index.html with your own CSS and JavaScript. There’s no build step, no framework and no server.
• Real backend scripts. .js, .py, .ps1 and .sh scripts run on your machine. Persephone ships Node, so JavaScript works without installing anything.
• One bridge. window.persephone runs scripts, reads and writes files, and opens results in other editors.
• Built and tested by the agent. Through the MCP server it creates, opens, clicks, screenshots and reloads the board until it works.
• Boards as editors. A board can claim *.xlsx, *.drawio or *.db, and Persephone offers it next to the built-in editors.
• Safe by default. A board runs only after you trust it, and it gets only the permissions it declares, such as running programs, file access or network. Catalog downloads are checksum-verified.

What you can build

• A dashboard for your build, your tickets or your server logs.
• A viewer for a file format nothing else opens.
• A project helper that deploys, seeds a database or cleans up a folder in one click.
• A personal tool: a todo list, a tracker or a report that stores its data next to it.

Try it

• Ask your agent: “make me a todo list that stores its data in the board folder.”
• Do it yourself: in the Explorer, click Boards, then New board. The caret next to it creates a full Demo board to explore.
• Install one from the board catalog.