Here’s a list of all writings:
Why MCP Doesn’t Work: Lessons from the Trenches at FINN
When we first heard of function calling (MCP), we at the Customer Ops Team thought we’d finally found the silver bullet for customer care! MCP (Model Context Protocol) promised a dream: giving our Slack chatbot (beloved Finny) the power to autonomously call any API, figure out exactly which endpoints to use, and seamlessly answer complex customer questions. FINN is a car subscription service that simplifies car ownership for B2C and B2B customers. But under the hood, it’s complex. Hundreds of internal APIs power everything from booking to billing, logistics to returns. As a software engineer in the Operations team, I own parts of that complexity—like the Subscriptions API and our customer care tooling. ...