Prompt's marketing team was creating LinkedIn content manually across teams with no shared voice, no tracking, and no central system. I built PostPilot to fix that. Turns a brief into three on-brand post variations in under a minute using Claude AI. Brand voice learning extracts tone from uploaded style guides. Imagen 4 generates visuals matched to each post. Multi-workspace architecture lets teams work independently while leadership oversees everything. 13-tag feedback loop improves output over time. Stack: Next.js 16, Supabase, Claude API, Imagen 4.