During October 2025, Arai U focused on enhancing user documentation for the open-telemetry/opentelemetry-collector repository, specifically targeting the ExporterHelper module. Arai clarified the relationship between batch min_size and sending_queue queue_size in batching configuration, aiming to reduce user misconfigurations and streamline onboarding. The work involved updating Markdown-based documentation to provide clearer guidance on configuring batching behavior, without introducing any functional code changes. By leveraging skills in technical writing and documentation, Arai enabled users to deploy the OpenTelemetry Collector more safely and troubleshoot batching issues more efficiently. The contribution demonstrated depth in understanding user pain points and effective communication of complex configuration details.