PI 4 — solves a regular problem, would use frequently.
The question this answers is one Katy asks every time a change is picked back up after a gap, which in this repo is often: tell-the-story sat untouched for 31 days and then produced four pull requests in a single day. Coming back to it meant reconstructing where it stood from five sources by hand.
Not a 5, because it is not a daily tool. It is a re-entry tool — read hard at the moment you return to something, ignored while you are in flow on it. The honest frequency is per-change, not per-day.
The strongest personal signal is that it caught a mistake in its own design while being built: the evidence split for tell-the-story had been read by hand as 5 of 8 outcomes test-backed, and derived from the record it is 8 of 8. That error had already reached the proposal, the design and the Figma frames.