Braintrust CLI and MCP

The emergence of AI coding agents is reshaping the traditional approach of "going where the developers are" by enabling tools to be accessed and utilized on behalf of developers. Within this context, both Command Line Interface (CLI) and Model Context Protocol (MCP) play significant roles, with CLI being a more reliable and scriptable foundation for repeatable operations across local, CI, and script environments. MCP, on the other hand, is beneficial for querying and exploring data within editors, particularly for non-technical users or platforms with native MCP support, despite its current limitations like re-authentication issues and configuration inconsistencies across IDEs. Braintrust supports both CLI and MCP, with CLI being integral to running evaluations, integrating into CI, and managing configurations, while MCP enhances diagnostic capabilities within editors by allowing natural language queries and data exploration. This dual approach enables Braintrust to transition from a mere web application to a comprehensive engineering system, leveraging CLI for consistent operations and MCP for conversational data interactions.

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