[Coinbase Develops AI 'Digital Teammate' CEEcil: Capable of Remembering Team Context and Proactively Handling Tasks] Coinbase has unveiled the architecture and application of its internal AI system 'CEEcil.' This system is not a simple chatbot but is designed as an AI agent resembling a 'team member.' It can be mentioned in Slack using @ and is equipped with long-term memory, proactive follow-up, and decision-making capabilities. Currently, CEEcil can assist the team in handling production incidents and answering expert-level knowledge that previously required hours of waiting. In the future, Coinbase aims to expand this model into multiple AI agents tailored to specific teams, enabling AI not only to 'answer questions' but also to continuously remember, actively participate, and complete actual tasks. In practical applications, CEEcil can proactively join relevant Slack discussions, send emoji reactions, and automatically follow up on issues when no one else addresses them.