Create, extract, and publish TypeScript SDKs. Covers analyzing existing applications to extract reusable logic, designing clean SDK APIs, implementing typed clients with proper error handling, bundling for multiple targets (ESM/CJS/browser), and publishing to npm (public or private registries). Use this skill when building SDKs, extracting shared code into packages, or creating developer tooling libraries.
View on GitHubFebruary 2, 2026
Select agents to install to:
npx add-skill https://github.com/srstomp/pokayokay/blob/main/plugins/pokayokay/skills/sdk-development/SKILL.md -a claude-code --skill sdk-developmentInstallation paths:
.claude/skills/sdk-development/# SDK Development Create professional TypeScript SDKs from scratch or by extraction. ## Development Process ``` ┌─────────────────────────────────────────────────────────────┐ │ SDK DEVELOPMENT PROCESS │ ├─────────────────────────────────────────────────────────────┤ │ │ │ 1. ANALYZE 2. DESIGN 3. IMPLEMENT │ │ ┌─────────────┐ ┌─────────────┐ ┌─────────────┐ │ │ │ Find code │ → │ Define API │ → │ Build SDK │ │ │ │ Map deps │ │ Plan types │ │ Add types │ │ │ │ Set bounds │ │ Error strat │ │ Handle errs │ │ │ └─────────────┘ └─────────────┘ └─────────────┘ │ │ │ │ 4. BUILD 5. TEST 6. PUBLISH │ │ ┌─────────────┐ ┌─────────────┐ ┌─────────────┐ │ │ │ Bundle │ → │ Unit tests │ → │ npm publish │ │ │ │ ESM/CJS │ │ Integration │ │ Docs │ │ │ │ Types │ │ Examples │ │ Changelog │ │ │ └─────────────┘ └─────────────┘ └─────────────┘ │ │ │ └─────────────────────────────────────────────────────────────┘ ``` ## Extraction Workflow When extracting SDK from existing application: ``` ┌─────────────────────────────────────────────────────────────┐ │ EXTRACTION WORKFLOW │ ├─────────────────────────────────────────────────────────────┤ │ │ │ EXISTING APP NEW SDK PACKAGE │ │ ┌─────────────────────┐ ┌─────────────────────┐│ │ │ src/ │ │ @org/auth-sdk/ ││ │ │ ├── services/ │ │ ├── src/ ││ │ │ │ └── auth/ │ ────────► │ │ ├── client.ts ││ │ │ │ ├── client