Contributed to the moeru-ai/airi repository by stabilizing the internationalization subsystem through targeted improvements in JSON handling and localization. Addressed a critical bug by standardizing ACT JSON escaping and formatting across multiple languages, which enhanced the reliability and consistency of emotion and action data display in localized user interfaces. Later, refreshed multilingual documentation for LLM API providers, adding new provider recommendations and reorganizing content to streamline onboarding and provider selection. Work was delivered using Markdown and YAML, with a focus on maintainability, cross-language compatibility, and reducing integration friction for development teams working with internationalized features and documentation.