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Phase 3 · Prepare

Clean up before you cut. Small steps that save answers.

For search, every document is cut into small pieces of text. Before that, we clean it up. Three examples from a client project with regulated technical documents:

Page headers and page numbers end up as tiny pieces of their own in the index.

Search finds empty snippets instead of the passage with the answer.

Step: remove page headers and page numbers

Pieces with no content, only a header or page number · fewer is better61

The product name at the top of every page is taken for a heading.

Pieces of text sit under the wrong heading. The AI puts a fact in the wrong section.

Step: stop treating the product name as a heading

Pieces under the wrong heading, out of all pieces · fewer is better4 of 350 of 33

Section headings get lost when the document is read in.

The AI cannot tell which section a fact comes from, so it cannot cite it.

Step: rebuild headings from the official numbering

Headings found in ten documents · more is better149178

Each step is small. Together they decide whether the AI finds the right passage. Windtunnel measures each step on its own, so you see which one is worth it.

Small samples: one document for the first two examples, ten documents of the same type for the third. They show what each check catches, not an average. Client and documents not named.

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No slides. No demo. Five questions on your system, and an honest answer on fit.

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