Agent Human Input Pause/Resume

Agents can pause a durable run when the model needs a human decision before it can continue. This keeps the services → agents → workflows lifecycle in one runtime: services expose tools, the agent decides it needs operator input, and the same checkpointed run resumes once that input arrives.

Pattern

cp := flow.StoreCheckpoint(nil, "deploy-agent")
ag := agent.New(
    agent.Name("deploy-agent"),
    agent.WithCheckpoint(cp),
)

resp, err := ag.Ask(ctx, "Deploy the service")
if err != nil {
    // If the model called the built-in request_input tool, the run is saved as
    // paused/input-required instead of losing state or completing early.
    pending, _ := agent.Pending(ctx, ag)
    runID := pending[0].ID

    // Later, after an operator supplies the missing answer, the same run ID
    // continues with the original prompt, human input, memory, and completed
    // tool history intact.
    resp, err = agent.ResumeInput(ctx, ag, runID, "Deploy to us-east-1")
}
_ = resp

The model sees a built-in request_input tool with a prompt argument. When it calls that tool, Go Micro persists the run with status paused and stage input-required. Plain agent.Resume continues to support completed, failed, and approval-paused runs; input-required runs are resumed with agent.ResumeInput so the human response is explicit.