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+# CLAUDE.md
+
+## Plugin Overview
+
+Weather forecast plugin for GUI Chat. Display weather information from Japan Meteorological Agency.
+
+## Common Guidelines
+
+For standard plugin development guidelines, see:
+https://github.com/receptron/GUIChatPluginTemplate/blob/main/CLAUDE.md
+
+## Plugin-Specific Notes
+
+### Features
+- Weather forecast display
+- Japan Meteorological Agency data
+- Location-based forecasts
+
+### External Services
+- **Japan Meteorological Agency API**: Weather data source
+
+### Dependencies
+- `gui-chat-protocol`: Core protocol for GUI Chat plugins
+
+## Updating This Document
+
+When making spec changes through discussion with Claude, update this file to reflect new constraints or architectural decisions.