What does a forward deployed AI engineer do in the first month?
Week 1: repo, Slack, standups, and one shipped change. Week 2: a narrow production slice on the client's stack with an eval. Day 30: a system running in the client's repo with a named owner on their side.
Why does the first week end with a shipped change?
Because access, review flow, and deployment are the real risks of putting an outsider in a repo. Shipping one small change in week 1 surfaces all three while the blast radius is minimal.
Why is there an eval in week 2?
An agent without an eval has no success condition, so every later conversation about quality is an argument about vibes. The eval is written before the slice ships so production runs are scored from day one.
What happens after 30 days?
The engagement continues on the flat monthly fee: extending the slice, hardening the exception path, and transferring ownership. The system stays in the client's GitHub throughout — there is no vendor copy to reclaim.