Godot / GDScript support

[NiMv1]

Current situation

• A mature tree-sitter grammar for GDScript already exists (prestonknopp/tree-sitter-gdscript, also published as tree-sitter-gdscript on npm).
• Godot is widely used by indie developers and small teams.
• RagCode currently provides full AST-based indexing for Go, PHP (incl. Laravel), and Python, with JavaScript/TypeScript planned (tree-sitter based).
• GDScript is not supported. In Godot repositories, workspace detection typically resolves to the generic .git marker (project_type: git), so .gd files are not parsed by any language analyzer and do not produce semantic chunks in Qdrant.
• As a result, RagCode has limited usefulness for Godot projects: GDScript symbols, relationships, and semantic search are effectively unavailable.

Potential scope

Implementation could follow the existing per-language analyzer pattern under internal/ragcode/analyzers/<lang>/ (similar to the planned JS/TS tree-sitter approach):

1. Add tree-sitter-gdscript support — new GDScript analyzer with semantic chunking (functions, classes, signals, enums).
2. Extract and index:
   • class_name / classes
   • functions and methods
   • signals (signal declarations)
   • enums
   • optional: doc comments, @export, @onready metadata where useful for search
3. Add reference indexing — cross-file symbol references for navigation (find_implementations, get_function_details, etc.).
4. Workspace detection — recognize project.godot as a workspace marker and set an appropriate project_type (e.g. godot / gdscript) so the language manager selects the GDScript analyzer.
5. Optional: .tscn scene file support — parse ext_resource script references and node paths to link scenes and attached scripts.
6. Scene ↔ script navigation — where feasible, expose relationships between .tscn nodes and their attached .gd scripts through existing MCP tools (search_code, hybrid_search, get_code_context).

Expected outcome

• Better repository navigation for Godot projects.
• Meaningful semantic and hybrid search over GDScript codebases.
• Improved support for Godot developers using RagCode with Cursor, Windsurf, Copilot, and other MCP clients.
• Increased adoption among the Godot community.

Context

Validated against the current homiodev/rag-code-mcp repository (README language table, workspace detection docs, analyzer layout). No existing open or closed issues request Godot/GDScript support.