UIPrompt vs underfoot

A visual component editor that turns your design into spec-grade prompts for Claude Code, Cursor, and v0. Design buttons, badges, checkboxes, and inputs, then get...

Apple and Google swap the AI models inside your phone with OS updates.

About UIPrompt

A visual component editor that turns your design into spec-grade prompts for Claude Code, Cursor, and v0. Design buttons, badges, checkboxes, and inputs, then get pixel-perfect AI output. UIPrompt is a visual component editor that writes spec-grade prompts with exact values, state diffs, theme-aware tokens, and accessibility rules. You are implementing a UI component in this codebase. Where Tailwind has no utility for an exact value, use arbitrary values (e.g. Do not substitute your own design taste, do not round values, and do not add visual features the spec does not mention.

About underfoot

Apple and Google swap the AI models inside your phone with OS updates. underfoot freezes one prompt suite, captures every OS build's answers, and publishes exactly what moved. Once a build is superseded, its model can never be measured again: every trace below is history that cannot be re-taken. All 140 macOS runs succeeded and every prompt returned byte-identical output across its 5 greedy runs, including the creative canaries (the haiku never varied). Any future change on this platform is the OS's doing, not sampling noise.