Weekstart Brief · Issue 4

Get your agent stack set straight before the week starts.

Weekstart is a weekly Monday brief for people who run AI agents in production. It covers the changes that break your agents or change their costs, with what to do about each one.

This week, in short:

A Managed Agent preview ID shuts off the day this issue lands. Callers still pinned to it fail on the first run.
The default workhorse model tier got a new version that rejects request shapes that worked last week.
Hosted-browser agents pause on every new origin and private sign-in unless someone is listening for the approval.
A macOS CI runner label starts brownouts the same morning — jobs still on it will flake.
Retention settings that used to keep only logs and artifacts now wipe checks, runs, and statuses too.

Get the full Issue 4 Members: read Issue 4 Read free Issue 1

This is the free teaser. Operator ($10/mo) gets the full brief and Monday checklist. Operator + Agents ($20/mo) adds the JSON pack for your agents. Issue 1 stays free.

From Issue 2 on, the public version is a teaser only. The full brief is for members.