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Claude Code Guidelines

About

ts-punycode is a modern, zero-dependency TypeScript implementation of Punycode (RFC 3492) with full RFC 5891 support and Unicode 15.1 compatibility. It provides bidirectional conversion between Unicode and ASCII for domain names and email addresses via encode/decode, toASCII/toUnicode, and UCS-2 utility methods. The library is fully type-safe and self-contained.

Linting

  • Use pickier for linting — never use eslint directly
  • Run bunx --bun pickier . to lint, bunx --bun pickier . --fix to auto-fix
  • When fixing unused variable warnings, prefer // eslint-disable-next-line comments over prefixing with _

Frontend

  • Use stx for templating — never write vanilla JS (var, document.*, window.*) in stx templates
  • Use crosswind as the default CSS framework which enables standard Tailwind-like utility classes
  • stx <script> tags should only contain stx-compatible code (signals, composables, directives)

Dependencies

  • buddy-bot handles dependency updates — not renovatebot
  • better-dx provides shared dev tooling as peer dependencies — do not install its peers (e.g., typescript, pickier, bun-plugin-dtsx) separately if better-dx is already in package.json
  • If better-dx is in package.json, ensure bunfig.toml includes linker = "hoisted"

Commits

  • Use conventional commit messages (e.g., fix:, feat:, chore:)