Mastra launches Custom Harness Program
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Mastra launches Custom Harness Program: former forward-deployed engineers (FDEs) embed with customer teams to co-build custom harnesses on Mastra, and early access to the Mastra enterprise platform is now open. Mastra says customers are already using the program to build their own systems: Salesforce built a harness for non-Anthropic models for its 100,000+ developer community, MongoDB built an internal platform called Sage, and Workday's security team built an SRE agent.
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- Mastra BlogIntroducing the Mastra Custom Harness Program
Mastra launched a Custom Harness Program in which its forward-deployed engineers embed with customer teams to co-build agent harnesses on Mastra. The post cites Salesforce, MongoDB, Workday and Marsh McLennan as teams that built their own harnesses, including Workday's move from Amazon Bedrock Agents to Mastra in 31 days, which cut 3,000 lines of code and lowered vector-storage costs by 98%. The program includes dedicated FDEs, observability and evals, custom MCP and human-in-the-loop workflows, auth and governance controls, and early access to the Mastra Enterprise Platform.
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