Engineering: Stop test messages cluttering dev channels instantly

Engineers seeing E2E test posts in dev channels miss real bug reports and waste triage time. Immediate rejection replies and reactions mark tests as rejected, keeping channels clear so engineers focus on real incidents.

Overview

Dev channels get clogged with E2E test petitions, causing engineers to miss real incidents and waste triage cycles. This workflow posts rejection replies and reactions so test posts are instantly dismissed and channels stay focused on real issues. The result is cleaner channels, faster triage, and fewer false positives reaching engineering.

Notable Features

Post rejection replies in thread
Add clear rejection emoji reaction
Detect E2E test posts by keywords