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Designing Evaluation Loops for Coding Agents

A practical synthesis on how agents should combine static checks, browser evidence, and human review.

Evaluation loops are the difference between a clever demo and a system that can be improved. The core pattern is simple: define the claim, gather evidence, compare against the claim, and record what changed.

Useful Evidence

  • Static checks for type and build safety.
  • Browser screenshots for visual work.
  • Targeted tests before broad suites.
  • Human-readable session notes that explain residual risk.