ColdStartIQ

ColdStartIQ is a web app (with optional CLI) that pinpoints why your serverless functions are slow on first hit and tells you exactly what to change. It ingests traces and logs from your existing stack, detects cold-start patterns (runtime, memory, VPC, dependency size, init code, provisioned concurrency misconfig), and ranks fixes by impact and cost. It outputs actionable recommendations like “move init to handler,” “trim package by 40MB,” “switch to ARM,” “remove VPC,” or “use SnapStart/Provisioned Concurrency only on these routes.” It also simulates traffic to estimate p95 latency and monthly cost before you deploy changes. Brutal truth: many teams tolerate cold starts because debugging is annoying and vendor docs are generic; this product wins only if it saves real engineering hours and reduces latency without inflating bills.