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Timothé Le Chatelier
Excel, but Agent-Ready: How Fred Turns Spreadsheets into Queryable Knowledge
Excel is not a document — it's a data source wearing a document's clothes. Here is how Fred rebuilds the structure of a workbook deterministically, hands the agent a global map plus queryable tables, and adds a server-side value locator that collapses a dozen blind queries into a single targeted one.
July 24, 2026 in data, agents, architecture by Timothé Le Chatelier14 minutes
Ingestion Shouldn't Be a Choice
A look at why three ingestion modes create more problems than they solve, how the PDF extraction pipeline was rebuilt to be ten times faster with 90% fewer LLM calls, and the unified ingestion architecture that points toward removing the choice entirely.
June 10, 2026 in architecture by Timothé Le Chatelier10 minutes