Mastra adds Langfuse trace imports to its platform for migrating observability history

Mastra platform now imports existing traces from third-party observability providers, starting with Langfuse, so users can debug and compare them alongside Mastra-generated traces.

Imports preserve span types such as agent_run, model_generation and tool_call, along with parent-child structure, timestamps, inputs, outputs, usage and cost.

Scores, feedback, datasets, attachments and logs are not imported, and the feature requires mastra@1.34.1 and @mastra/core@1.77.0 or later.