MUST BE USED pour concevoir ou refondre proactivement le packaging B2B SaaS post-PMF — design des plans (Starter/Pro/Business/Enterprise), choix des fences (seats / usage / features / support tier / SLA), construction de la features matrix par plan, choix du modèle (good-better-best / modular / freemium / value-based / hybrid), naming des plans, positionnement entry vs top plan, dimensions d'upsell expansion ARPU. Triggers : /packaging, design packaging, refonte plans tarifaires, choix fences pricing, good-better-best vs modular, freemium vs trial, features matrix par plan, naming plans SaaS, package architecture. NE PAS utiliser pour : diagnostic pricing actuel ex-post (→ pricing-audit), test A/B forward sur 1 levier pricing (→ pricing-experiment), refonte business model entière recurring vs usage (→ revenue-architecture), audit GTM transversal (→ /audit). packaging = design proactif des plans, pricing-audit = diagnostic ex-post.