Herder keeps familiar terminal-multiplexer features such as workspaces, tabs, split panes and persistent sessions, then adds a sidebar that understands supported coding agentsAn artificial intelligence coding agent is a software system that can plan and carry out bounded development tasks by reading code, editing files and using development tools.. Instead of manually checking every pane, a developer can see which agent is still working, waiting for approval, idle or finished but not yet reviewed.
State detectionArtificial intelligence agent state detection determines an agent's current operational status from runtime events or conservative analysis of its observable output. combines direct lifecycle integrations with conservative screen matching for agents that do not expose hooks. Optional notifications surface blocked or completed background work, while unsupported tools still run as ordinary terminal processes without rich status tracking.
The local CLI and socket API make the multiplexer an orchestration layerArtificial intelligence agent orchestration coordinates agent tasks, sessions, messages, tools, state and execution order across an agent-based workflow. rather than just a dashboard. One agent can split a pane, launch another agentArtificial intelligence agent-to-agent communication is the structured exchange of messages, results, requests, or state between autonomous artificial intelligence agents., submit review instructions, wait for a target state and read the result back, enabling structured multi-agent workflowsA multi-agent system is an environment in which multiple autonomous agents act, exchange information, and sometimes coordinate to pursue individual or shared objectives. without brittle key-sending scripts.
A client-server design keeps terminal sessions running across disconnects and can restore supported agent conversations after a restart. Remote mode moves the server to another machine while preserving the local interface, although pre-1.0 protocol changes, heuristic detection, incomplete Windows support and nested multiplexers remain practical limitations.
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