Agent skill · magnus919
capacity-and-cost-engineering
Model technical capacity, unit cost, and budget constraints connected to demand, performance, and reliability decisions. Use when projecting capacity from growth forecasts, sizing for peak events, designing cost-aware scaling policies, defining budget thresholds or quota/rate-limit enforcement, running or planning load/soak tests as capacity evidence, or resolving SLO-cost tradeoffs. Do NOT use for financial P&L statements, fundraising scenarios, or SaaS metrics (route to financial-modeling); for infrastructure implementation or cloud-resource provisioning (route to platform-engineering); or for generic cloud-cost tips and universal utilization targets — this skill does not prescribe fixed savings rates or one-size-fits-all thresholds.
What it needs
About 9k tokens when loaded.
What this skill does
Capacity and Cost Engineering Connect demand, performance, reliability, and spend into defensible capacity and cost decisions. This skill models technical capacity, calculates unit cost at the infrastructure level, defines budget and quota controls, requires load/soak evidence for capacity claims, and makes cost-performance tradeoffs explicit — producing evidence that feeds production-readiness launch decisions and constrains or supports site-reliability-engineering SLO choices. Connected dimensions Demand (traffic and growth), performance (latency and throughput), reliability (SLOs and error budgets), and spend (cost) are treated as connected dimensions — a change in any one dimension affects the others. The skill's core method is tracing the connection: Dimension Capacity impact Cost impact ----------- ---------------- ------------- Demand (traffic, growth rate) Drives compute, storage, network requirements Drives baseline and projected spend Performance (latency, throughput target) Constrains resource headroom per request Tighter targets increase unit cost Reliability (SLO, error budget) Requires redundancy, over-provisioning, or isolation Higher SLOs increase cost non-linearly Spend (budget, cost constraint) Caps capacity; may force degraded-mode operation Limits what SLO/performance targets are achievable A capacity decision that changes one dimension without modeling the others is incomplete. Every capacity model, unit-cost calculation, and budget decision in this skill must name at least one connection to another dimension with evidence or an explicit assumption. …
How to use it
Reference it in AdaL, Claude Code, Cursor or any coding agent — nothing to install:
@skills magnus919/capacity-and-cost-engineering