New Site Feature: Running Wrap-Ups

Since I’ve got a working pipe line to get running data from my watch to my phone to mac and into run log entries, I can summarize some details into weekly (or monthly or quarterly, etc.) wrap-ups.

I gave Claude some vague details of what I was looking for and a couple of hints about what I think it needed to pull it off.

lets add a periodic running wrap up. make a script that:

• find run log blog entries for last 7 days by default.
• aggregate stats for
  • total number of runs
  • total distance covered
  • average pace (in mm::ss per mile)
  • total calories.
• add sparklines for
  • miles/day
  • pace/day
  • calories/day
• add a historygram for vibes.

please make an archetype called running-wrapup.md

I thought it was going ask me a few questions about what I was looking for or some technical details, but it had a good idea of what to do on its own. It ground away for about 5 minutes and I could see it testing the back and front end code and fixing its own small bugs and missed assumptions.

It came back with something that was really good. I thought it would shell out to a javascript charting library for the sparklines and histogram, but it just used inline SVG; clean and fast. All of the calculations where correct and only a few small formatting changes were needed. Nice!

Checking the number again when I ran the script for reals. I found a tiny problem with rounding for pace. I gave it a plain English description of the problem:

take a look at /blog/running-wrapup-2026-08-02/ the pace per day sparkline seems to have a rounding bug. it reports pace was “10:60”

Claude knew exactly what I was talking about and quickly fixed and tested the updated code. It even corrected the problematic figures in the previously generated post. Cool.