Every AI writing tool makes LinkedIn posts faster. None tell you if they're actually good. PostSmith scores every post 0-100 against LinkedIn best practices before you publish. Under the hood: 8 specialized AI agents handle research, writing, validation, visuals, carousels, voice matching, and scheduling. Connect GitHub/GitLab or upload your documents to find stories in your code. 4 audience modes (developer, marketing, leadership, general) tune vocabulary and scoring. Free to start.