- ToolRegistry: tool lifecycle management, execution with validation
- GetLinesTool: read file lines with line numbers
- GetFunctionTool: get function source using AST
- GetClassTool: get class source using AST
- GetStructureTool: directory tree with filtering
121 new tests, 540 total
- OllamaClient: ILLMClient implementation with tool support
- System prompt and context builders for project overview
- 18 tool definitions across 6 categories (read, edit, search, analysis, git, run)
- XML response parser for tool call extraction
- 98 new tests (419 total), 96.38% coverage
