Skill Labs: plan your moment, and clearer AI ground rules

Two Skill Labs refinements:

Plan your moment. When you start a lab you can jot one line about when you'll actually do it -- "if it's Saturday morning coffee, then I'll do this lab." Research on implementation intentions shows this simple move meaningfully raises follow-through. It's optional, it's in your own words, and we show it back when you return. No streaks, no reminders, no guilt.

Clearer AI ground rules. The two AI labs now teach the full responsibility set inside the exercises themselves -- verifying AI output against sources, recording where content came from and its license, handling uncertainty and failure honestly, and never pasting anyone's confidential material into an AI tool. Both labs also score your reasoning, explicitly never your prompt tricks. The full policy is published and versioned.