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## Why Terminal task correctness alone does not guard Buzz-native collaboration behavior such as exact reply routing, non-waking narrative names, batched agent synthesis, thread isolation, and ambiguous identity targeting. ## What - Add five medium/hard Harbor tasks for multiline delivery, narrative agent names, interleaved agent reports, cross-thread requests, and ambiguous user mentions - Add signed scripted-event fixtures, duplicate-display-name profiles, and public-only evidence export support - Add positive and adversarial verifier fixtures covering dropped inputs, extra posts, incorrect routing, and unintended mentions ## Risk Assessment Low — changes are limited to benchmark tooling and datasets; production behavior is exercised but not modified. ## References - Grounded in behavior reported in `buzz-community` and public issues #5787, #5176, #5839, #4942, #4072, #4303, and #6257 - Live Claude Sonnet 4.6 smoke run: 2/5 passed; the three failures exposed top-level instead of threaded delivery, empty narrative output, and silent ambiguous-identity completion - Live GPT-5.6 Luna run (`buzz-native-solo-luna.yaml`): 3/5 passed. Passed `ambiguous-user-mention`, `cross-thread-requests`, and `interleaved-agent-reports`. Failed `multiline-message` and `narrative-agent-names` because both omitted the event-level user mention despite otherwise-correct content and threading. <img width="1176" height="805" alt="Screenshot 2026-08-21 at 11 11 17 AM" src="https://github.com/user-attachments/assets/fc259ec9-892c-4436-b022-1bf85415617d" /> Signed-off-by: Salman Mohammed <smohammed@squareup.com>
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492 B
Markdown
10 lines
492 B
Markdown
# cross-thread-requests
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The harness posts ALPHA and BETA as separate top-level human mentions in the
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same channel before the queue flushes. Passing requires two different replies,
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each anchored to its own triggering event with only its own answer. This is a
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deliberately hard guard for the cross-thread contamination reported in
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[block/buzz#5839](https://github.com/block/buzz/issues/5839) and the exact
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reply-target contract in
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[block/buzz#4072](https://github.com/block/buzz/issues/4072).
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