Nest handoff history by default #1996
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seratch
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Oct 29, 2025
rm-openai
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Oct 29, 2025
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All of kaz's feedback seems right. In addition, I'd say two major things:
- This setting should be on the
Handoffobject - Since you're updating the default, this is a breaking change, so please update the changelog.
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jhills20
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Nov 8, 2025
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moved to Handoff, added handoff history .py file for non extension parts of handoff filter, added changelog
rm-openai
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Nov 14, 2025
docs/release.md
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| - By default handoff history is now packaged into a single assistant message instead of exposing the raw user/assistant turns, giving downstream agents a concise, predictable recap | ||
| - The existing single-message handoff transcript now by default starts with "For context, here is the conversation so far between the user and the previous agent:" before the `<CONVERSATION HISTORY>` block, so downstream agents get a clearly labeled recap |
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we;ve release 0.5.0 so you'll need to move this to a 0.6.0 section
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| filter_name = getattr(input_filter, "__qualname__", repr(input_filter)) | ||
| from_agent = getattr(agent, "name", agent.__class__.__name__) | ||
| to_agent = getattr(new_agent, "name", new_agent.__class__.__name__) | ||
| logger.debug( | ||
| "Filtering handoff inputs with %s for %s -> %s", | ||
| filter_name, | ||
| from_agent, | ||
| to_agent, | ||
| ) |
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weird syntax - also can you use f-strings and get rid of getattr?
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| __all__ = [ | ||
| "remove_all_tools", | ||
| "nest_handoff_history", | ||
| "default_handoff_history_mapper", | ||
| ] |
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can remove this, not super useful
seratch
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Nov 14, 2025
rm-openai
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Nov 17, 2025
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codex/add-nest_handoff_history-field-and-functionality
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Summary
nest_handoff_historyflag toRunConfigand call a new helper that condenses the prior transcript into a developer-role summary when handing offTesting
uv run pytest tests/test_extension_filters.pyuv run pytest tests/test_agent_runner.py -k handoffuv run pytest tests/test_agent_runner_streamed.py -k handoffhttps://chatgpt.com/codex/tasks/task_i_68ff73bda0f4832496f3d1fa9103905f