What makes an effective eval harness for coding agents
A useful eval harness for coding agents measures repeatable workflows, not only prompt outputs, and keeps results tied to concrete developer tasks.
By Agent Software

Scheduled article
This post is scheduled to publish in full on July 24, 2026. The final URL is already live so social previews, search crawlers, and future readers all resolve to the same article.
An effective agent eval harness needs scenario design, clear pass criteria, and enough operational realism to catch regressions that demos hide.
- Final publish date: July 24, 2026
- Primary categories: Testing
- Tags: #agent-harness #testing #agent-evals #architecture
In the meantime, the related posts below cover the adjacent product and engineering context this article builds on.


