Function record_loop_step 

pub fn record_loop_step()

One loop step executed (loop.step). Drives agent_loop_steps_total.

Process-local / unwired: loop.step is emitted inside the re-exec’d child agentic loop, a different process from the supervisor that /metrics scrapes, so calling this would only bump the child’s own registry — there is no cross-process rollup. It is therefore intentionally NOT called from the loop; the series renders the supervisor’s own process only and agentctl derives step counts from loop.step log lines.