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Ollama tool/function calling integration allows the LLM to create tasks, create notes, and search existing notes on behalf of the user during chat. Multi-round tool loop (max 5 rounds) lets the model execute tools then produce a natural language response. Tool results are persisted in a new JSONB column on messages and rendered as compact cards with linked titles. - Migration 0013: add tool_calls JSONB column to messages - New services/tools.py: tool definitions + execute_tool dispatcher - llm.py: ChatChunk dataclass, stream_chat_with_tools(), date in system prompt - generation_task.py: multi-round tool call loop with SSE tool_call events - Frontend: ToolCallRecord type, streamingToolCalls in store, ToolCallCard component, rendering in ChatMessage and ChatView streaming bubble Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>