Devutils

Gives Claude 17 text utilities that run locally via npx: base64 encode/decode, UUID and ULID generation, hashing with md5/sha1/sha256/sha384/sha512, JWT decoding with expiry checks, cron expression parsing and validation, Unix timestamp conversions, and JSON formatting. No API keys or external services. You'd reach for this when you're asking Claude to inspect a JWT payload, explain when a cron job runs next, generate test UUIDs, or quickly hash strings during development conversations. Works in Claude Desktop, Cursor, and VS Code Copilot. The regex tester and timestamp converter are handy for debugging without context switching to browser tools.