2026-06-27 - AI Spend and Product Design Agents

Added

• brian-armstrong-ai-spend-management - Brian Armstrong argues that AI spend can stay flat as token usage grows by changing defaults, routing, caching, and context discipline instead of relying on tighter usage caps; linked to moc-ai-spend-management.
• vercel-product-design-agents - Vercel explains how it teaches agents product design with skills, lint rules, Vercel Agent reviews, evals, and a human-led update loop.