[Bug]: skill integration tests may overwrite agentMetadata.md for different tests

[JasonYeMSFT]

We use dynamically computed date string in the agentMetadata.md file names to hopefully get separate files for each agent run. This approach fails when the host machine runs faster than the millisecond precision the date string has. On my mac book, I have seen more than once there are less than expected agentMetadata.md files produced and the ones that did get produced have very close date string values.

[github-actions]

Thanks for filing this, @JasonYeMSFT! 🙏

This has been labeled as a bug since it describes a race condition causing unexpected behavior, and integration-test because it specifically affects the skill integration test infrastructure. The skills label was added given the scope of the issue. Since this is a concrete code fix (replacing millisecond-precision timestamps with a more collision-resistant identifier like a UUID or counter), assign-to-copilot has also been applied and a coding agent will look into it.

Generated by Issue Triage for issue #1075

[JasonYeMSFT]

The problem is mitigated by auto-appending suffix to write reports with the same timestamp into separate files.