■ Agent AI Daily Trend Watch (Execution Date: September 21, 2026)|阿南 共樹
Target period: September 18–20 (includes weekend data due to Monday). Important cases from September 16–17 have been moved to “Minor Movements”. 1. Today’s Highlights (within 3 lines) The biggest topic of the weekend is “Plugin4Shell,” a zero-click RCE common to four major coding agent products. Two products have been patched, while two remain unpatched or…