aws-sst-development

# SST v4 for AWS SST v4 (the "Ion" engine) is a Pulumi-backed IaC framework: you describe AWS resources in TypeScript and SST/Pulumi reconciles them into your account. It gives you high-level `sst.aws.*` components (Function, Bucket, Dynamo, Cron, Service, …) that expand into many underlying resources, plus an escape hatch to *any* raw Pulumi `aws.*` resource for the long tail. This skill encodes a production-proven way to author, link, test, deploy, and troubleshoot SST stacks on AWS — distilled from real multi-stack projects that have paid for each lesson with a prod incident. **SST and Pulumi are third-party — verify current syntax with Context7** (`resolve-library-id` → `query-docs` for `sst` or `pulumi-aws`) when you're unsure about a component's options. Verify AWS-side facts (service limits, model IDs, IAM action names, region availability) with the AWS docs MCP, never from memory. The patterns here are the *how*; the docs are the *what*. ## When you're invoked Figure out which mode you're in and jump to the right reference: | Situation | Go to | |-----------|-------| | New project, or adding a resource/module to an existing SST app | **Author** → `references/authoring.md` | | Wiring one module's output into another (links, SSM, IAM scope) | **Author** → `references/authoring.md` § Sharing | | Writing tests for infra so changes don't silently break | **Test** → `references/testing.md` | | Running a deploy, or a deploy just failed | **Deploy/Operate** → `references...