estimate-cost

name	estimate-cost
description	Estimate compute, IO, and runtime cost for a candidate query, migration, or schema operation.

Estimate Cost

Use when

• User needs execution cost estimate before confirmation.

Workflow

1. Run dry estimates from plan/cost model plus historical baselines.
2. Convert to understandable unit economics (CPU, IO, storage, lock occupancy).
3. Provide confidence interval and alternative lower-cost variants.
4. Attach optimization preconditions.

Governance

• Flag high-cost operations and require explicit human confirmation.
• Include environmental impact assumptions used in estimate.

Output

• estimatedCost, confidence, assumptions, optimizationLevers