budget-check

Pre-wave usage gate. Before launching an expensive multi-agent wave or fan-out, check the active usage block against a threshold (default 95%) via ccusage and return go / no-go / unknown — fail-closed, never a fabricated go. Trigger via /budget-check, or as a reflex before any large dispatch. Not /ask-gate (governs a handler-facing question) or /orchestrate-mode and /multi-agent-mode (which run the wave) —…