Mastra Launches Custom Harness Program with Embedded Forward-Deployed Engineers

Mastra launched the Custom Harness Program, in which forward-deployed engineers embed with customer teams to co-build tailored agent harnesses. The program includes observability, evals, custom MCP, human-in-the-loop workflows, auth and RBAC, plus early access to the Mastra Enterprise Platform. Mastra cites Workday, which moved off Amazon Bedrock Agents in 31 days, cut 3,000 lines of code and lowered vector-storage costs by 98%.