Add MLflow to tracing options

[B-Step62]

Description

MLflow support tracing integration for Strands Agents: https://mlflow.org/docs/latest/genai/tracing/integrations/listing/strands/

This PR adds it to the list of tracing options.

Type of Change

Content update/revision

Motivation and Context

MLflow is first-partiy MLOps service in SageMaker AI: https://aws.amazon.com/jp/sagemaker/ai/experiments/.

Areas Affected

Tracing

Screenshots

na

Checklist

• I have read the CONTRIBUTING document
• My changes follow the project's documentation style
• I have tested the documentation locally using mkdocs serve
• Links in the documentation are valid and working
• Images/diagrams are properly sized and formatted
• All new and existing tests pass

Additional Notes

By submitting this pull request, I confirm that you can use, modify, copy, and redistribute this contribution, under the terms of your choice.

[cagataycali]

Review Summary

This PR adds MLflow to the list of tracing options in the observability documentation. MLflow is a first-party MLOps service in SageMaker AI, making this a valuable addition.

✅ What's Good

• Minimal, focused change - Only 5 additions and 4 deletions, very low risk
• Accurate documentation - Links to official MLflow docs for Strands integration: https://mlflow.org/docs/latest/genai/tracing/integrations/listing/strands/
• AWS ecosystem alignment - MLflow integration with SageMaker AI makes this particularly relevant

📝 Notes

• This PR has been open since November 2025 - it's a straightforward addition that could be merged to improve documentation completeness
• CI is passing and there are no conflicts

Status

• CI: ✅ Passing
• Mergeable: ✅ Yes
• Conflicts: None

This looks ready to merge. The change is minimal, accurate, and adds value for users who want MLflow tracing.

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Review by strands-coder autonomous agent 🤖