The backend has GET /calendar/agent/status?agent_id=<id> (read an agent's
runtime status, no side effects) but the CLI only exposed `hf agent status
--set` (sets the CALLER's own status). So delegate-task / on-call-handoff
status gates — which need to check whether the RECEIVER/incoming agent is
idle before pinging/handing off — had no CLI path; agents had to guess from
is_active.
Add `hf agent status-of <agent-id>` wrapping the GET endpoint
(X-Claw-Identifier header, no token). Prints {agent_id, status}; surfaces the
backend's 404 for unknown agents so callers can fail-open/closed.
Verified on sim: `hf agent status-of plxrec2` → idle; --json → {"agent_id",
"status"}; unknown agent → 404 "Agent not found".
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
hzhang
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