AI Dev 26 x SF | Matthew Xu: The 4-Legged Identity Challenge

As MCP systems scale from local setups to shared infrastructure, developers face new challenges around security, identity, and access control that aren't solved by standard patterns. This talk by Agentic Fabriq's Matthew Xu breaks down common failure modes (like over-permissioned tools and weak auditing) and shows how to implement practical fixes such as least-privilege access, guardrails, and privacy-aware logging. It also covers the "4-legged" identity problem and developer-friendly approaches like token exchange and structured auth flows for production MCP deployments.