List coding-agent sessions on this machine across Claude Code, Codex, and Cursor. live: 'attached' (a running process references this session), 'recent' (updated <5 min ago), or 'idle'.

Full-text search across all agents' session transcripts. Returns matching session ids.

Read a normalized transcript (user/assistant messages) of any agent's session.

Ask another local agent a question and get its answer (headless, blocking). Pass session_id to ask within an existing thread's context — the answer comes from a snapshot of that thread (for Claude Code, a hidden parallel branch in the same session); a live interactive view of it will not see the exchange. Codex runs sandboxed read-only unless allow_writes. Cursor is not askable (no CLI). Relay depth is capped at 2 to prevent agent-to-agent loops.

Hand a session's context from one agent to another. Builds a markdown brief from the source transcript, saves it under ~/.agent-bus/handoffs/, and either returns a ready-to-run launch command (launch=false) or seeds a new target session and returns its resume command (launch=true).