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JavaScript, TypeScript and WebAssembly runtime with built-in formatting, linting, testing and compilation. Scripts get no file, network or environment access unless granted with --allow-* flags, making agent-generated scripts safer to run.

All-in-one JavaScript and TypeScript toolchain: a single bun binary is a Node.js-compatible runtime, package manager, test runner and script runner, with noticeably faster installs and test runs.

JS/TS development plugin with javascript-pro and typescript-pro subagents, a TypeScript project scaffolding command, and 4 skills on modern JavaScript, advanced TypeScript types, Node.js backends and JS testing. Part of the wshobson/agents marketplace.

Connects Claude Code to a TypeScript/JavaScript language server for go-to-definition, find references and live type error checking. Install typescript-language-server globally first. Official Anthropic plugin.

All-in-one toolchain for web projects: fast formatting and linting with 500+ rules for JS, TS, JSX, JSON, CSS and GraphQL. Formatting is highly compatible with Prettier, and check --write applies all fixes in one pass.