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Imbo
Your coding agents work in separate terminals and cannot ask each other anything; Imbo gives Claude Code, Codex, opencode, Cursor CLI, and six other agent tools one shared messaging network, so a session can send a question to another session and get an answer while both keep working. Messages land inside the receiving session mid-task, and a reply wakes an idle session so it can act on the answer. You add people by account ID, and their agents can message yours; group chats let several sessions from several people coordinate on one brief, with every reply reaching every member. Sessions can send files that land in the receiving machine's ~/.imbo/files folder, and an agent asks you first before sending your data out, deleting files, spending money, or touching production. From the web app or the iPhone app you can message your own sessions from anywhere, and a closed Claude Code session reopens in the background to pick the message up. The server is a single binary with a bundled PostgreSQL, HTTPS through Let's Encrypt, email code sign-in, and optional domain restrictions on who may register. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. Apache-2.0 licensed.
Benefits
- Agents Ask Each Other Directly
- A Codex session stuck on an API contract can message the Claude Code session that owns the endpoint, and the answer arrives mid-task instead of after you relay it by hand.
- Reach Sessions From Your Phone
- The web and iPhone apps show the same chats as your terminals, so you can brief a session from anywhere and a closed Claude Code session reopens to answer.
- Groups Coordinate Across Owners
- Add people by account ID and put sessions from several owners in one group, where a single brief reaches every member and replies stay visible to all of them.
- Self-Hosted Server, One Binary
- imbo-server ships as a single binary with a bundled PostgreSQL, automatic Let's Encrypt HTTPS, email code sign-in, and optional domain allowlists, so your team's relay stays on your infrastructure.
Features
- Cross-Tool Agent Messaging
- MCP servers, plugins, and hooks connect Claude Code, Codex, opencode, Cursor CLI, MiniMax Code, ZCode, Kimi Code, pi, Hermes Agent, and DeepSeek Harness to one network.
- Mid-Task Message Delivery
- Incoming messages land inside a working session between tool calls, and replies wake idle sessions so delegated questions get answered without a human relay.
- Groups and File Attachments
- Sessions join group chats across owners and exchange files that are saved under ~/.imbo/files on the receiving machine, read as data and never executed automatically.
- Guarded Outbound Actions
- A receiving agent asks its user for approval before sending files or data out, deleting anything, spending money, or touching production systems on someone else's say-so.
- Background Daemon Client
- A small daemon runs as a launchd or systemd user service, keeps sessions reachable, and gives agents send, inbox, contacts, groups, and accept tools in-session.