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<title id="title">Loop Engineering stack</title>
<desc id="desc">Prompt, Context, and Harness Engineering improve one agent run. Loop Engineering is the governing layer above them for recurring work over time.</desc>
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<text x="64" y="52" fill="#155eef" font-size="13" font-weight="800">MENTAL MODEL / FOUR LAYERS</text>
<text x="64" y="91" fill="#121722" font-size="34" font-weight="800">Loop Engineering Stack</text>
<text x="1136" y="88" text-anchor="end" fill="#5c6678" font-size="16">From one agent run to recurring, governed work</text>
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<text x="756" y="211" fill="#155eef" font-size="20" font-weight="800">Loop Engineering</text>
<text x="756" y="237" fill="#3f4856">Recurring contract, verification, state, and next action.</text>
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<text x="756" y="306" fill="#087f99" font-size="20" font-weight="800">Harness Engineering</text>
<text x="756" y="332" fill="#3f4856">Tools, permissions, sandboxes, traces, and checks.</text>
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<text x="756" y="401" fill="#087b53" font-size="20" font-weight="800">Context Engineering</text>
<text x="756" y="427" fill="#3f4856">State, memory, documents, and examples the agent sees.</text>
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<text x="756" y="496" fill="#121722" font-size="20" font-weight="800">Prompt Engineering</text>
<text x="756" y="522" fill="#3f4856">The instruction and interaction for one model call.</text>
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<text x="64" y="665" fill="#5c6678" font-size="14">Prompt, context, and harness improve one run.</text>
<text x="1136" y="665" text-anchor="end" fill="#155eef" font-size="14" font-weight="700">Loop Engineering governs work over time.</text>
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