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SKILLS & PROMPTING · 25 OCTOBER 2026

Harness engineering paper: the 7 building blocks every coding agent shares

1 source · Part of the 25 October 2026 edition

A Wavestone AI Lab paper studied the source code of 11 coding agents and found the same seven building blocks in each: the loop, the model layer, tools, memory, safety, orchestration and extensions. @Arindam_1729 summarised it.

Why it mattersA simple checklist for judging any agent product: before you trust it with client work, ask where its memory, safety rules and tools come from.

Sources

How we knowCompany figures are labelled as their own claims; anything we couldn't verify is labelled as a report or a claim.

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