Delegate a self-contained coding or research task to a LOCAL model running in its own sandboxed agent loop. USE PROACTIVELY to offload grunt work — codebase searches, boilerplate, mechanical multi-file edits, test scaffolding — instead of doing it inline. The subagent reads/edits files and runs shell commands confined to working_dir, and returns a summary plus a git change report. Give it ONE clear, self-contained task with enough context to act without follow-up questions. Safe to call multiple times concurrently; in-flight runs are bounded by LOCAL_VIBES_MAX_CONCURRENCY.