Reading up on Sierra

The diary chronicles Sierra engineers’ incremental construction of an MCP gateway, detailing weekly service additions, user adoption, and solutions for secure data access.

Sierra launches Horizon, a platform enables AI agents to pursue long‑horizon business goals such as loan origination and prior authorization while learning from each interaction.

Salesforce acquires Fin (formerly Intercom) for $3.6B to compete in the AI customer support agent space, with many commenters debating whether AI support is truly better than human-led support.

As AI models commoditize measurable tasks, lasting value lies in 'untrainable' work requiring private data, trust, organizational change, and domain-specific authority.

Sierra redesigned its engineering interviews to focus on product thinking and AI-augmented building rather than traditional coding and algorithms.

Meta AI is preparing Avocado models, Manus browser agent integration, scheduled tasks, and OpenClaw bring-your-own-key support to close the feature gap with competitors.

The article argues that data collected from user adoption is the only sustainable moat for AI applications, with easy-to-adopt, easy-to-solve use cases being value traps for startups.