AST-targeted code editing MCP server with 28 surgical tools for structural edits across 11 languages. Built on tree-sitter, replaces brittle search/replace with byte-correct edits keyed by symbol names.
Provides evidence-backed, transactional code refactoring for JavaScript/TypeScript and other languages via MCP, enabling semantic renames, signature changes, edits, and safe bulk operations with preview, atomic apply, and rollback.