hive-agent

The in-container harness serve-loop binary — one instance per agent. Long-polls the broker inbox and drives one claude --print turn per inbox message, over the hive-claude driver. There is one role here (agent); the Surface trait + AgentSurface zero-sized type tag keep the turn loop generic and testable for future roles without a parallel copy of the loop.

When to use it

You don't call into this crate from elsewhere — it's the top-level binary systemd starts per agent container. Look here when you need to understand or change: what happens between "a message lands in the inbox" and "claude produces a reply", how login/auth is bootstrapped, how the per-agent web UI is served, or how turn/event stats get recorded. Architecture detail lives in docs/turn-loop/; this README is just the map of the module tree.

Shape

• turn.rs — the turn-loop policy layer: renders the system prompt + MCP config, invokes hive-claude, classifies the outcome, and feeds the event/turn-stats sinks.
• client.rs — broker client (inbox poll, ack, send) speaking the hive-sh4re wire protocol.
• login.rs / login_session.rs — first-run and session-resume auth flow for the claude CLI.
• mcp_config.rs — renders the per-turn --mcp-config / --allowedTools blob from tool groups + capabilities.
• todos.rs / reminders.rs / todo_server.rs — the harness-local loose-ends v2 stores (sqlite-backed) and the in-agent socket server extra MCP daemons + hive-agent-mcp dial into for todo/reminder ops.
• vacuum.rs — periodic sqlite vacuum sweep for the harness-local stores.
• events.rs / turn_stats.rs / stats.rs — append-only event sink and per-turn telemetry recording (context usage, cost, tool favorites) under harness/.
• forge_notify.rs — subscribes to forge notifications and wakes the harness on new activity.
• prompt.rs — system-prompt renderer (persona + tool docs + environment facts).
• web_ui/ — the per-agent dashboard (terminal pane, status, schedules) served over the built-in hive-agent web port.
• paths.rs — canonical path resolution for state/harness dirs and the harness-local sqlite files.

Sibling: hive-agent-mcp (the MCP server this loop points claude at every turn). Both are described together in docs/turn-loop/::Harness binary shape.