agent skill design
How to write and maintain instructions for agent skills across model changes. Every Jev Daily story on agent skill design, newest first. 3 stories since October 2026.
- Isenberg posts the agent stack for his 50-person company
A long list of tools and prompts, with no cost, latency or error numbers attached to any of it.
- Greg Isenberg says agents breed cobras when you give them a number
A 19th century bounty story, repurposed as a warning about what happens when you score an agent on throughput.
Know what Jev is good at before you bet on it
One email a day. Under three minutes. What builders found out about Jev yesterday.
- Mike Taylor calls a skill's short half-life an eval failure
An argument about where agent instructions should live, with no task set behind it yet.
People on agent skill design
Get the next one by email
Jev, read daily so you do not have to. The builds, the benchmarks, the criteria that worked and the cases where it lost, from the people shipping on TypeSafe AI's System One model.