> This is the Markdown rendition of https://pyxle.dev/docs/guides/editor-setup, served for AI agents and assistants. > Append `.md` to any pyxle.dev URL to fetch its Markdown; the links below already do. > Index of every page: https://pyxle.dev/llms.txt · Whole docs in one file: https://pyxle.dev/llms-full.txt > Search the docs: https://pyxle.dev/api/docs-search?q=YOUR+QUERY (returns matching pages as Markdown links) # Editor setup Pyxle Language Tools brings first-class IDE support to `.pyxl` files — syntax highlighting, diagnostics, completions, hover documentation, go-to-definition, formatting, and breakpoint debugging, plus a **Pyxle: Open Studio** command. Everything works out of the box with a single install. > **Beta release.** The language toolkit is production-usable but still > evolving. [Report issues on GitHub.](https://github.com/pyxle-dev/pyxle-langkit/issues) --- ## VS Code (recommended) ### 1. Install the extension Search for **"Pyxle"** in the VS Code Extensions panel, or install from the terminal: ```bash code --install-extension pyxle.pyxle-language-tools ``` The extension is also available on the [VS Code Marketplace](https://marketplace.visualstudio.com/items?itemName=pyxle.pyxle-language-tools). ### 2. Install the language server The VS Code extension is a thin client — the actual intelligence comes from the `pyxle-langserver` process. As of 0.7.0 it ships with the framework itself — if you've run `pip install pyxle-framework`, `pyxle-langserver` is already in your environment. (On older framework versions, `pip install pyxle-langkit` installs it separately.) That's it. Open any `.pyxl` file and you'll see the **✓ Pyxle** indicator in the status bar when the language server connects. --- ## Features ### Syntax highlighting `.pyxl` files get dual-language highlighting — Python sections are highlighted as Python, JSX sections as JavaScript/React. The grammar correctly handles template literals, so code snippets inside backtick strings won't confuse the highlighter. ### Diagnostics Errors and warnings appear inline as you type: - **Python analysis** — powered by [pyflakes](https://pypi.org/project/pyflakes/) with 40+ rules. Catches undefined names, unused imports, syntax errors, unreachable code, and more. - **JSX analysis** — powered by [Babel](https://babeljs.io/). Catches syntax errors in your JSX code. - **Pyxle-specific rules** — validates `@server` loaders (async, request parameter, return statement), `@action` functions, `