Rule ID: opt_prepeakbid_003
Condition: Horizon signal T−3 to T−5 AND competitor spend declining AND CPM falling
Action: Increase bid 15–20% · Shift budget from awareness to conversion
Evidence: 5/5 successful · Avg CPA improvement 27% · Avg ROAS uplift 0.6
Confidence: HIGH · Apply autonomously within Fast Track band
Exceptions: Do not apply if no_trend_reactive set · Do not apply if CPA floor at risk