Three posts from this week, for people who build software.

The Long Thread Was Not the Expensive Part A hub session had 17 user messages and 26 subagents. The main thread processed 37.5M input tokens and the subagents about 280M, 7x as much.

Four Blog Tooling Paths Now Share One Function and 16057 Tests Passed Four places in our blog tooling, the digest, social, lesson and dailybackfill, now get a post's URL id from one function, and that id carries no date.

Moving leads.jsonl Off One PC Into a Durable Object The lead ledger was one file, .runs/blog-leads/leads.jsonl, and if the file wasn't there, readleads returned []. The module's docstring said its sources were verified on 2026-09-30.

If one of these sounds like your week, hit reply and tell us what broke. If you want a second pair of eyes on it, book a short call with us.

DX