SubKill: SaaS Trial-Trap, Zombie Seat & Retention Discount Detector Chrome Extension (MV3) + 120-Vendor Cancellation Playbook

Stop bleeding $500–$3,000/mo to SaaS auto-renewal traps, 30/60-day cancellation notice clauses, and accidental "Zombie Editor Seats" in Figma, Notion, Slack, HubSpot, Datadog, Asana, and Adobe. Includes: (1) SubKill Manifest V3 Chrome Extension (full unminified source code + Load Unpacked ready) that automatically detects 120+ B2B SaaS pricing/billing domains, reveals hidden 25%–60% retention discount triggers in cancellation flows, flags zombie-seat billing rules, and tracks local renewal cutoff alarms via chrome.storage.local, plus (2) The 120-Vendor B2B SaaS Cancellation Dark-Patterns, Retention Discounts & CFO Negotiation Scripts Master CSV.