Sst Dev

SST (Ion) is the modern iteration of the Serverless Stack framework — TypeScript-first infrastructure definitions for AWS, with a component library that makes common AWS patterns (Lambda + API Gateway, RDS + Postgres, DynamoDB, queues, S3) as easy as importing a class. The Live development mode is a standout feature: local code changes reflect instantly in a cloud-connected dev environment without full redeploys. For agents deploying AWS infrastructure: SST provides declarative TypeScript IaC that deploys via sst deploy, leveraging Pulumi/Terraform under the hood. Confidence is docs-derived.

CLI-based (no REST API — IaC framework). sst deploy deploys infrastructure from SST config (sst.config.ts). sst dev starts live development mode. sst remove tears down infrastructure. Component library: new sst.aws.Function("Fn", {handler: "src/fn.handler"}), new sst.aws.RDS("DB", {engine: "postgresql16"}), etc. Resources are linked: use Resource.DB.connectionString in Lambda code. Outputs from sst deploy available as typed exports.

AWS credentials: SST uses standard AWS credential chain (env vars, ~/.aws/credentials, IAM roles). No SST-specific API key. Access scoped by IAM policies attached to deploying credentials. Least-privilege IAM policies recommended for CI/CD deployments. Open-source Apache 2.0.

Deployment errors: TypeScript compilation errors catch config issues before deploy. AWS CloudFormation/Pulumi error messages surface for infrastructure failures. Live mode: Lambda errors in local process with full stack traces. SST actively maintained with frequent releases. Pulumi/Terraform state management handles deployment idempotency.

sst.dev/docs covers component library reference, getting started guides, live development, and AWS pattern examples. Getting started: npx sst@latest init, configure AWS credentials, sst deploy in under 15 minutes. Open-source (GitHub: sst/sst, 20k+ stars). Very active Discord community. Extensive examples repository.