budget-control

name	budget-control
description	Per-workflow budget enforcement: tripwire at 80% (downgrade model tier), HITL at 100%. Telemetry pattern for cost-per-task tracking.

Budget Control

Workflows declare Constraints.budget_usd. Every squad return updates HydraState.budget.spent_usd. The CFO gate (hydra-cfo-gate) tripwires at thresholds.

Tiers

• < 0.5 consumed: opus-tier free use.
• 0.5..0.8: prefer sonnet for non-creative-quality tasks.
• 0.8..1.0: downgrade to haiku where rubric allows; emit budget_tripwire trace event.
• >= 1.0: PAUSE; emit HITL_REQUEST(reason="budget_approval").

Cost Attribution

Every record_attempt event posted by the dispatcher includes tokens_in, tokens_out, cost_usd. Roll up per squad and per task to detect unit-economics anomalies (cost-per-task >> rolling-avg → defer to executive cfo for investigation).

Override Semantics

/hydra:resume <wf> --modify-budget <usd> is the only way to lift a budget pause. It writes a budget_override audit row. There is no auto-renewal.