fix(slack): add message deduplication for Socket Mode retransmissions#364
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leighstillard wants to merge 1 commit intochenhg5:mainfrom
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fix(slack): add message deduplication for Socket Mode retransmissions#364leighstillard wants to merge 1 commit intochenhg5:mainfrom
leighstillard wants to merge 1 commit intochenhg5:mainfrom
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…issions Slack Socket Mode retransmits events when ack is delayed or after reconnects. Without dedup, the same message gets processed multiple times, causing "message queued for busy session" spam and duplicate bot responses. Every other platform (Feishu, DingTalk, QQ, QQBot, WeCom) already uses core.MessageDedup — Slack was the only one missing it. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
chenhg5
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Mar 29, 2026
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LGTM. Good fix following the established pattern.
Review notes:
- ✅ CI passes
- Matches dedup pattern used by other platforms (Feishu, DingTalk, QQ, WeCom)
- Uses
ev.TimeStampas unique message ID - Prevents duplicate processing from Socket Mode retransmissions
Approved for merge.
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Final checks have been done, ready for merge |
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Merged locally into feature/thread-affinity-router — dedup fix now included in #533 |
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Summary
core.MessageDedupto the Slack platform adapter, matching the pattern used by every other platform (Feishu, DingTalk, QQ, QQBot, WeCom)AppMentionEventandMessageEventusingev.TimeStampas the unique message IDProblem
Slack Socket Mode retransmits events when acknowledgment is delayed or after connection drops/reconnects. Without dedup, the same message is processed multiple times:
This causes "message queued for busy session" spam and can trigger duplicate bot responses after the current turn completes.
Test plan
go build ./...passesgo test ./core/passes (614 tests)🤖 Generated with Claude Code