des-cost-and-performance-optimization

What problem does it solve?

This Skill prevents costly, slow, and unmeasurable data engineering changes by turning cost/performance concerns into a safe, evidence-ready optimization specification aligned with SLAs, contracts, governance, and quality.

Core Features & Use Cases

• Creates a Cost & Performance Optimization Specification: Defines cost and performance objectives, scope, and non-scope across storage, compute, ingestion, transformations, queries, semantic models, serving, orchestration, and monitoring.
• Builds a measurement-first baseline plan: Establishes how to measure before tuning so optimization decisions are testable and observable.
• Prepares Phase-Orchestrated Support deliverables: Produces the cost/performance artifact plus support plan, evidence pack, artifact revision notes, Done Gate, and a handoff to Phase 21.

Use Cases:

• When a project is moving toward implementation/release and needs explicit cost and performance targets with guardrails.
• When storage growth, query latency, refresh time, API latency, orchestration runtime, or FinOps constraints require structured optimization planning.
• When optimization must not weaken security, quality, contracts, lineage, or freshness.

Quick Start

Use the des-cost-and-performance-optimization skill to draft the Cost and Performance Optimization Specification in _des-output/planning-artifacts/20-cost-performance-optimization-specification.md based on the required Phase 7–19 planning artifacts and the Phase 19-to-20 handoff.