- **Verification**: Run minimal targeted verification commands for non-trivial changes. Report exact commands and output. Never claim unexecuted validation.
- **Task Delegation**: When delegating to sub-agents, pass clear, self-contained imperative instructions and report their outputs concisely and faithfully.
+- **Background Sub-agents**: Always launch subagents in the background when the tool supports it (e.g. `background: true`). Only run a subagent in the foreground when its result is strictly required before you can continue the current step.
