Jakub focused on stabilizing Telegram integration within the openclaw/openclaw repository by addressing a critical bug affecting proxy support for API calls. He identified that Node.js’s global fetch lacked the dispatcher option required by ProxyAgent, which disrupted proxy usage. To resolve this, Jakub imported fetch directly from the undici library, ensuring the ProxyAgent dispatcher was properly utilized and restoring reliable proxy functionality for Telegram workflows. His work demonstrated practical expertise in Node.js, TypeScript, and API integration, with a targeted approach that improved system reliability. The depth of his fix addressed both the technical root cause and the operational impact on Telegram connectivity.