THE
LAB ENGINE
AI experiments by Walid
MonÉlu turns French parliamentary archives into a public, queryable data product.
Writing about production data engineering, civic AI, and the architecture behind useful agents.
AI Lab / Civic intelligence
MonÉlu
Evidence-first civic intelligence
MonÉlu treats AI as a governed interface to public data: deterministic questions route to SQL; semantic questions retrieve evidence from pgvector before a French-language answer is generated. Confidence comes from retrieval quality; answers identify PostgreSQL or RAG as their data source, and retrieved evidence is exposed when available.
Latest writing / 02
Field notes from the build
I Cut My Claude Code Token Usage by 87%, Without Changing a Single Prompt
How building Slide-Hustle revealed that the bottleneck was never the prompt. It was the architecture.
Read on Medium Apr 09, 2026 / 10 min readI Tried to Call a Government API. It Didn’t Exist.
Seven production bugs from building a civic data pipeline on French parliamentary data, and what each one taught me.
Read on Medium Medium / 02 storiesField Notes from the Build
Cloud data engineering, MonÉlu, agent architecture, and the lessons that survived production.
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