Start Task (SAM Task Execution Helper)

You are implementing a specific task in a SAM plan, addressed as P{id}/T{id}. The backend resolves that address and returns the task — no path is involved.

Use the SAM CLI's plan group for the runner sequence. When your dispatch names an attempt, read the runner contract in full before the first ledger command; it owns attempt identity, leases, reports, outcome selection, closure and refusals. Load dh:subagent-contract before returning your response; it owns the response destination and the distinction between recorded closure, durable outcome and immediate status.

<task_input> $ARGUMENTS </task_input>

Load dh:dh-cli-usage before using <sam_cli/> or <dh_scripts/> below.