THThreadlines
Threadlines is an open-source desktop app (macOS, Windows, Linux) for running coding agents — an agentic development environment (ADE) for Claude Code, Codex, OpenCode, Cursor, and agents from the ACP registry. Several agents can share one thread, agents can start their own threads, and pull requests, CI checks, source control, and a built-in browser sit beside the chat. It runs on the user's computer with no hosted backend.