New Empirical Study Breaks Down Which Harness Components Actually Help Coding Agents
SinclairWang1 · x · 2026-09-18
Vfrz525 shares an empirical study of harness design for coding agents. Most evaluations compare complete agent systems end-to-end, making it hard to isolate the contributions of individual harness components like planning, tool use, and context management. The study decomposes the harness and tests each component separately to determine which parts actually help, and under what conditions.
More from coding & agent
- 25M tokens later, a local Qwen user says prompt adherence is the real breakthrough — mateszhun · 2026-09-18
- After 4 forced days on open-weight models, Burkov is impressed: $10/mo beats $20/mo Anthropic — burkov · 2026-09-18
- Open-source Chrome extension skips YouTube sponsor reads in real time for ~$0.005 per video — yangyi · 2026-09-18
- Log the boring stuff now: why unattended AI pipelines need decision journals before they break — Ok_Print8251 · 2026-09-18
- What's the worst thing a coding agent has ever done? Devs swap agent failure stories — MyCode83 · 2026-09-18
- mitsuhiko: Anthropic context compaction loses reasoning on retained messages — mitsuhiko · 2026-09-18