From Prompt to Harness: Coderlet from Scratch
Quick summary
arXiv:2608.09480v1 Announce Type: new Abstract: A model alone does not determine how a programming agent acts. What the model sees, how actions enter the environment, how feedback returns, and how one run affects the next all depend on how the harness is organized. Minimal examples usually show only the basic interaction between a model and tools, while production systems spread these relationships across complex components and dependencies. This paper studies a compact harness design by following a single request through context formation, model decision, environmental action, observation ret
Key takeaways
- arXiv:2608.09480v1 Announce Type: new Abstract: A model alone does not determine how a programming agent acts.
- What the model sees, how actions enter the environment, how feedback returns, and how one run affects the next all depend on how the harness is organized.
- Minimal examples usually show only the basic interaction between a model and tools, while production systems spread these relationships across complex components and dependencies.
Why it matters
The value of this work lies as much in how it was tested as in the claim itself. Sample design, baselines, uncertainty and replication help separate a laboratory result from real-world impact.
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