CCB (Claude Codex Bridge)

CCB (Claude Codex Bridge) is an open-source multi-agent TUI from SeemSeam that coordinates CLI coding agents such as Codex, Claude and Gemini from one command. Agents run in visible terminal panes that users can take over directly, while a background daemon keeps project state alive. The latest release listed is v8.7.11.

What It Is

CCB is a terminal workspace and collaboration layer for CLI AI agents. Per the README, it supports 16 CLI provider families, including Codex, Claude, Gemini, Pi, OMP, Kimi, OpenCode, Grok, Qwen, Cursor, Copilot, Crush, Kiro, Antigravity and Droid. Agents can pass work to each other through /ask, enabling collaboration graphs such as A -> B -> C, A,B -> C and A -> B,C.

How the Workflow Runs

Running ccb in a project directory opens a workspace. A blank project starts with a single agent named demo, using the first supported CLI found on the machine. Larger topologies are defined in .ccb/ccb.config or edited in a local Config UI (opened from the sidebar Settings icon or ccb config ui) that edits windows, pane splits, providers, models and thinking levels, validates changes, and supports reload dry-runs. Project-wide shared memory lives in .ccb/ccb_memory.md.

Message Queues and Input Protection

Requests and returned results share one chronological FIFO queue per target agent. In human/agent mode, incoming messages wait while a user is composing a draft, for up to 180 seconds before the draft is cleared and delivery proceeds. The README recommends testing these modes with Claude, Codex and OMP in managed tmux panes.

Mobile, Rich Mode and Roles

An Android app, installed through ccb update mobile, acts as a remote controller. It supports agent chat, voice input, a terminal view and file transfer, and the gateway binds to loopback by default. Rich mode (ccb update rich) adds a file browser and media preview in the terminal. CCB also supports the Agent Roles Spec for installable role packs.

Setup Path

Install with npm install -g @seemseam/ccb@latest, or use release packages or a source install. A native Windows x64 beta is available separately. Updates use ccb update, which can also check installed provider CLIs.