Weekstart Brief — Issue 2

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 frontier Responses model made sync tool-loop assumptions stale — turns keep going while tools finish, and operators can steer mid-flight.
Prompt-cache misses from tool/schema churn stopped being a mystery — diagnostics will expose who keeps rewriting defs.
Voice agents got a new full-duplex glue surface to reasoning/tools — the voice minute is a separate meter.
Key lifetime is now enforceable policy, and soft failures finally split “you’re bursting” from “the model is overloaded.”
A managed-agent preview lane renamed its tools under you — and an older preview shuts Oct 5.

Read free Issue 1 Get the full Issue 2

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.