Are AI Agent Logs Discoverable? Rule 26, Spoliation, and the Record You Cannot Make Later

Yes. US courts through 2026 have treated AI prompts, outputs and agent records as discoverable evidence under Rule 26. Unlike a compliance deadline, discovery reaches backwards: it asks for records of what already happened. What that means for agent logging, why reconstruction is weak evidence, and the properties a contemporaneous record needs to survive a third party reading it.