Prompt Contracts for Teams: Sharing AI Specs Without the Merge Hell

If you've been writing Prompt Contracts for a while, you know they work. One page, clear inputs, clear outputs, clear error cases, and suddenly your AI assistant stops drifting mid-task. Then your teammate opens yours, tweaks three lines, and everyone on the team has a slightly different version floating around in a Notion doc, a Slack thread, and somebody's ~/prompts/ folder. Now you're back to the chaos Prompt Contracts were supposed to fix. Here's the workflow I landed on after the third week of reconciling "which contract is current?" The problem with shared prompts Prompts are code.