# Query Building -- Technical Specification

**Version**: v1.0.0 | **Status**: Active | **Last Updated**: March 2026

## Overview

Placeholder submodule for tree-sitter AST query patterns and query builder utilities. Intended to provide reusable query templates for common code analysis patterns (function definitions, class declarations, imports, etc.).

## Architecture

This submodule is currently a namespace placeholder. The `__init__.py` exports an empty `__all__` list. Query execution is currently handled directly by `TreeSitterParser.query()` in the sibling `parsers/` submodule using raw S-expression strings.

## Current State

- `__init__.py`: Module docstring ("AST query patterns") and empty `__all__` -- no query builder classes implemented yet.
- Future scope: pre-built query templates per language and a fluent query builder API.

## Planned Interface

When implemented, the module would expose:

| Class / Function | Purpose |
|-----------------|---------|
| `QueryBuilder` | Fluent API for composing tree-sitter S-expression queries |
| `QueryLibrary` | Pre-built query patterns for common AST structures (functions, classes, imports) |
| `QueryResult` | Wrapper around tree-sitter captures with named access |

## Dependencies

- **Internal**: `tree_sitter.parsers` (query execution), `tree_sitter.languages` (language-specific query patterns)
- **External**: `tree_sitter` (query syntax and captures API)

## Constraints

- Not yet implemented; importing yields an empty namespace.
- Tree-sitter queries use S-expression syntax; any builder must generate valid S-expressions.
- Zero-mock: `NotImplementedError` for unimplemented paths.

## Navigation

- [README.md](README.md) | [AGENTS.md](AGENTS.md)
- Parent: [tree_sitter](../README.md)
