zed-extension

Reference Zed extension for Strata, per proposal/14-toolchain.md §18 (D-066): "Zed is the reference client ... its extension surface is small (extension.toml pinning the grammar rev, config.toml, .scm queries, one WASM shim wiring language_server_command)."

This is intentionally minimal — a reference extension proving the tree-sitter grammar is consumable by a real editor extension surface, not a polished package. It provides syntax highlighting, bracket matching, indentation, and outline/symbol navigation from tree-sitter-strata. It does not wire strata-ls (language_server_command) yet; that is Tier-A strata-ls work tracked separately in the roadmap (11-roadmap.md Phase 1), not part of this grammar-conformance pass.

Layout

• extension.toml — extension manifest; [grammars.strata] pins the grammar repository and revision (see the caveat below), [languages.strata] registers the language.
• languages/strata/config.toml — language config: comment syntax, bracket auto-close, tab size.
• languages/strata/highlights.scm — syntax highlighting queries, kept in sync with tree-sitter-strata/queries/highlights.scm.
• languages/strata/brackets.scm, outline.scm, indents.scm — minimal bracket-matching, symbol-outline, and indent queries.

Grammar repository caveat

D-066 calls for "one tree-sitter-strata repo under the project org." Today tree-sitter-strata/ is a subdirectory of this monorepo. Zed clones a grammar's repository/rev and expects grammar.js/src/parser.c at that repository's root, so extension.toml's [grammars.strata] currently points at the monorepo as a placeholder — installing this extension in a real Zed build will not resolve the grammar until tree-sitter-strata is split into its own top-level repository (or Zed's extension format grows a subpath option). This extension is otherwise structurally complete and its queries are validated against the grammar directly (see tree-sitter-strata/'s test suite), so the split is a packaging step, not a rewrite.

Validating the queries without a Zed install

(or any other .scm file / fixture under crates/strata-syntax/tests/fixtures/).