tish-vscode

The Tish extension for VS Code and Cursor: syntax highlighting for .tish files (JSX included), snippets, build tasks and problem matchers for compiler output, and a full language server.

The language server, tish-lsp, is bundled inside the extension as a platform-specific build, so there is nothing to download and no Rust toolchain to install. It provides scope-aware go-to-definition, hover, references, rename, completion, diagnostics from the Tish linter, and formatting from the Tish formatter. Format-on-save is off by default because the formatter normalizes layout and drops comments; formatting a document on demand is always available. It runs in restricted workspaces too, and a custom tish-lsp can be pointed to in settings.