We build tools for developers working with AI agents
Tools for people coding with Claude Code, Codex, Cursor and other agents.

Tools

Jotbus
A shared scratchpad for coding agents. Your agents on different machines leave notes, hand off work and review each other's changes.

Handler
Sandboxes and a control plane for AI coding agents. Run each agent in isolation, watch its terminal, and fork to try another approach.

Hackerpad
A browser canvas for diagrams. Sketch the system before your agents build it.

claude-code-rail
A session rail for Claude Code in tmux. See every session live: what each one is doing, and which ones are waiting on you.