Meta-harnesses are becoming the next agent engineering layer

Latent Space’s AI News post argues that agent engineering is moving into a “meta-harness” phase. The idea is that the tooling around agents is becoming layered: harnesses no longer just run agents, but can help coordinate, evaluate, and improve other harnesses.

That reflects the complexity of modern agent stacks, where models, tools, memory, evaluation, and deployment controls all interact. Managing those layers is becoming its own engineering discipline.

The post is useful context for teams building agents because it points to the growing importance of orchestration and evaluation infrastructure.