Title: Intermittent Threading Bug — Agent Responses Posted Outside Originating Thread

Severity: Medium-High | Intermittent / Recurring
Agent ID: ff1379fe-51d1-4bd4-a870-e5ef6dc11d88 (Ask_Sam)
Internal Ref: ANT-3200

Bug Description
When Ask_Sam auto-triggers on a new message in #analytics (CCWKC4Z41), responses intermittently post as top-level channel messages instead of thread replies. A secondary related behavior: occasional duplicate responses — two messages fire on the same trigger within seconds.

Expected: All auto-trigger responses post inside the originating thread.
Actual: Response posts at channel level — unanchored, invisible to requestor, clutters channel.

Frequency: Intermittent (~5–10% of triggers). Ongoing for several months. Previously reported; partially resolved; still recurring as of July 6, 2026 (screenshot attached showing ANT-3388 response orphaned at channel level).

Business Impact

• Requestors miss their answers

• Channel noise accumulates with context-free orphaned messages

• Erodes stakeholder trust in agent reliability

• Directly impacts our internal N6 Operational Reliability KPI (95% target)

Attachment: Screenshot provided showing orphaned response referencing ANT-3388 posted at top-level in #analytics.