Prompt Lab is the back-of-house for everything in the Piano House workshop. As work happens across each project — every conversation with an AI assistant, every commit, every decision — it's quietly logged and threaded by project. A nightly pass turns the raw stream into something readable: daily summaries, weekly rollups, and a living list of what each project is currently focused on, what's stalled, and what just shipped.
The point isn't surveillance, it's memory. With many parallel projects moving at once, it's easy to forget what was tried, why a direction was abandoned, what was promised. Prompt Lab is the part of the system that remembers, and that surfaces those memories where they're useful — in private dashboards, in periodic email recaps, and increasingly in this site itself.
This very page exists because Prompt Lab made it easy to recall, in detail, what each of the projects on this site has been about lately.