Microsoft releases Scope, an open-source evaluator for coding agents

What the research found

Microsoft released Scope, an MIT-licensed Kubernetes-based open-source platform for evaluating how AI coding agents use software, with an Azure Cosmos DB case showing measurable doc and SDK gains.

Claims and how well the evidence supports them

1. Scope is open source under the MIT License and built on Kubernetes 99%
2. Cosmos DB team resolved 20 Agent Kit and 27 documentation issues using Scope 98%
3. Hierarchical partition-key adoption rose from 47% to 100% after one Agent Kit update 99%
4. Scope evaluated eight end-to-end Cosmos DB scenarios in five languages 99%

Evidence

• opensource.microsoft.com https://opensource.microsoft.com/blog/2026/10/19/introducing-scope-open-source-evaluation-for-ai-coding-agents

Actionability rated medium.