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Add emit_message_history to record an agent transcript without seeding it - #74811
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pankajastro
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kaxil
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October 15, 2026 18:54
kaxil
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Oct 16, 2026
…g it Single-turn agents that want their transcript on XCom had to pass message_history=[], a parameter for seeding a conversation, not for observing a run. A dedicated flag states that intent directly, and do_xcom_push=False now also suppresses the transcript push, as it does the other XCom pushes. Co-Authored-By: Claude <noreply@anthropic.com>
Gating the transcript push on do_xcom_push also stopped it for message_history users, narrowing a stable feature. A tri-state emit_message_history defaults to whether the run is seeded, so existing sessions keep pushing, a single-turn run can opt in, and a seeded run can opt out. Co-Authored-By: Claude <noreply@anthropic.com>
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CI failure is unrelated PR: #75188 should fix it |
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AgentOperatorpushes the transcript to XCom only whenmessage_history is not None.A single-turn agent that only wants its transcript recorded has to pass
message_history=[],which is the parameter for seeding a conversation.
This adds
emit_message_history: bool | None = None:None(default): push the transcript whenmessage_historyis set, as before.True: also push it for a run withoutmessage_history; the run is not seeded.False: keep a seeded run from pushing it.emit_message_historyresolving toTruetogether withenable_hitl_reviewraises, for thesame reason
message_historydoes: the post-review transcript is not recoverable.Was generative AI tooling used to co-author this PR?
Generated-by: Claude Code (Sonnet 5.5) following the guidelines
🤖 Generated with Claude Code