AI Agents Market: Slashy's Cross-App Agent Architecture Detailed

This article provides a technical deep dive into Slashy (YC S25), a cross-app AI agent. It outlines the architecture's three core primitives: custom tools, semantic search, and personalized memory. The agent coordinates actions across various SaaS APIs, such as Slack and Google Calendar, using a session object to manage state and error handling. The piece discusses failure modes, including rate limits and auth errors, and mitigation strategies. It also covers the security boundaries, observability, deployment details, and the trade-offs of this design, concluding that it is best suited for exploratory workflows tolerating eventual consistency, not for real-time or transactional applications.