
Worked on the braintrustdata/braintrust-sdk repository to deliver foundational sandbox capabilities over a three-month period, focusing on API development and full stack engineering with Python and TypeScript. Established new API types and structural changes to support future sandbox workflows while maintaining production stability. Introduced and later reverted experimental sandbox registration features to ensure a disciplined release process and minimize integration risk. Enhanced the SDK by adding a runtime parameter for Python-based sandboxes, implementing backward compatibility safeguards for older data-plane versions. The work emphasized risk management, stable interfaces, and developer experience, laying groundwork for broader runtime-based sandboxing features and future integrations.
April 2026: Delivered Sandbox Registration runtime parameter to enable Python-based sandboxes while preserving backward compatibility. The change passes the runtime into sandbox eval listings and includes safeguards to strip the value on outdated data-plane versions, maintaining stability. This feature expands sandboxing capabilities and improves developer experience with Python-based workloads.
April 2026: Delivered Sandbox Registration runtime parameter to enable Python-based sandboxes while preserving backward compatibility. The change passes the runtime into sandbox eval listings and includes safeguards to strip the value on outdated data-plane versions, maintaining stability. This feature expands sandboxing capabilities and improves developer experience with Python-based workloads.
March 2026 — Braintrust SDK: sandbox scaffolding was introduced and subsequently rolled back to maintain stability, with a decisive push-bug fix and disciplined feature lifecycle. The month focused on establishing sandbox registration groundwork for future data-plane integration, then removing sandbox functionality to avoid partial, unstable deployments. Overall, the work demonstrates strong release discipline, risk management, and readiness for a future reintroduction if needed.
March 2026 — Braintrust SDK: sandbox scaffolding was introduced and subsequently rolled back to maintain stability, with a decisive push-bug fix and disciplined feature lifecycle. The month focused on establishing sandbox registration groundwork for future data-plane integration, then removing sandbox functionality to avoid partial, unstable deployments. Overall, the work demonstrates strong release discipline, risk management, and readiness for a future reintroduction if needed.
February 2026 monthly summary for braintrust-sdk. Delivered foundational groundwork for sandbox capabilities by introducing Sandbox Route API Types and updating the API types (typespec) to support future sandbox operations. Structural changes prepared for upcoming sandbox APIs while keeping existing production interfaces stable. This work positions the SDK to rapidly enable sandbox workflows once APIs are implemented, accelerating feature delivery and reducing integration risk for client applications.
February 2026 monthly summary for braintrust-sdk. Delivered foundational groundwork for sandbox capabilities by introducing Sandbox Route API Types and updating the API types (typespec) to support future sandbox operations. Structural changes prepared for upcoming sandbox APIs while keeping existing production interfaces stable. This work positions the SDK to rapidly enable sandbox workflows once APIs are implemented, accelerating feature delivery and reducing integration risk for client applications.

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