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Harness engineering emerges as the next frontier in AI agent development

The concept of "harness engineering" is emerging as the next critical skill in AI development, building upon prompt and context engineering. This new layer focuses on the systems surrounding large language models, managing aspects like tool access, memory, permissions, and oversight. Harness engineering involves creating a loop where external code interprets model outputs, decides on tool execution, and feeds results back to the model, allowing for more robust and controlled agent behavior. This approach aims to prevent agent failures by implementing checks, budgets, and error handling within the surrounding code rather than relying solely on the model's internal capabilities. AI

IMPACT Harness engineering is presented as a crucial skill for building more reliable and controllable AI agents, moving beyond prompt and context management.

RANK_REASON The item discusses a conceptual shift in AI development skills rather than a specific product release or research finding.

Read on dev.to — LLM tag →

AI-generated summary · Google Gemini · from 1 sources. How we write summaries →

Harness engineering emerges as the next frontier in AI agent development

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The item discusses a conceptual shift in AI development skills rather than a specific product release or research finding.
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COVERAGE [1]

  1. dev.to — LLM tag TIER_1 English(EN) · Ahmad Dogar ·

    Harness engineering: the skill that took over from prompt engineering

    <p>In 2024 the skill everyone talked about was prompting: find the right words and the model does the right thing. In 2025 it was context: hand the model the right files and docs, and the exact wording matters less. In 2026, when an agent fails, it is rarely the wording or the co…