TL;DR

Reverting or adjusting the replay hook changes introduced in version 4.2 may resolve the issue of agents repeating content they've already said.

Guidance

• Investigate the transcript policy and cleanup logic in the replay hook to see if it's causing the loss of prior assistant turns during history reconstruction.
• Review the logs to confirm that the issue is indeed related to the history reconstruction and not a delivery or compaction problem.
• Test the system with a shorter session to see if the issue is still present, which could help determine if the problem is related to the length of the session.
• Consider rolling back to version 3.31 or a previous version where this issue was not present to see if the problem is specific to version 4.2.

Example

No code snippet is provided as the issue does not include specific code details.

Notes

The issue seems to be specific to version 4.2 and the changes made to the replay hook. The fact that it's intermittent and worse in longer sessions suggests that it might be related to how the conversation history is being reconstructed.

Recommendation

Apply workaround: Revert to a previous version (e.g., 3.31) until the issue with the replay hook changes in version 4.2 is resolved, as this will likely prevent the loss of prior assistant turns during history reconstruction.