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+# CLAUDE.md
+
+This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.
+
+## Project Overview
+
+Order backup CLI tool — backs up order data by time range to CSV, then deletes backed-up records from the production Azure Table store. Operates on production tables, so performance impact must be minimized.
+
+## Tech Stack
+
+- **Language**: Python
+- **Package management**: `uv` (install via `uv tool`)
+- **Storage**: Azure Table (Python SDK)
+
+## Reference Implementation
+
+Order data model and format: `/Users/tech/workspace/n3-world/N3-Server/n3backend/n3order`