kgbuilder.dev
in

Knowledge graphs,
built to be used.

Practical Neo4j and graph-AI work — ontology design, multi-source ingestion, and retrieval that holds up in production. By Konrad Kaliciński.

// patterns from graphs in production
// context graphs — grounding LLM answers(:Document)-[:MENTIONS]->(:Entity)-[:GROUNDED_IN]->(:Context)
// supply chain — component traceability(:Supplier)-[:SHIPS]->(:Component)-[:ASSEMBLED_INTO]->(:Product)
// crop protection — biorationals against pests(:Biorational)-[:TARGETS]->(:Pest)-[:THREATENS]->(:Crop)
// legal — case law over regulations(:Ruling)-[:INTERPRETS]->(:Article)-[:PART_OF]->(:Regulation)
01 — ABOUT

I build and ship knowledge graphs on Neo4j — ontology design, multi-source ingestion, GraphRAG, and the unglamorous plumbing that makes a graph survive contact with real data.

I write about this work every week: what is working, what is not, and what most teams get wrong on their first knowledge-graph project.

— Knowledge graph practitioner and writer: building, teaching, and consulting on graph-AI projects.

02 — WRITING
Medium ↗LONG-FORM · WEEKLY Long-form articles on Neo4j, GraphRAG, and applied graph-AI.
RECENT ARTICLESAUG 19, 2026Do Knowledge Graphs Fail as Agent Memory? What Two 2026 Benchmarks Actually ShowTwo studies say graph memory loses on cost and accuracy. A closer read — plus the memory tools worth trying, for coders and non-coders alike.AUG 13, 2026How Do You Know That? Adding a Provenance Layer to a Supply-Chain Knowledge Graph in Neo4jA traceability graph says where a batch came from. It usually can't say how you know — and that gap is a modeling choice, not a tooling problem.AUG 11, 2026The Supplier That Stops Everything: Finding Supply Chain Chokepoints with Neo4j and GDSToyota paused hybrid SUV orders over a part four tiers deep. BASF shut ammonia plants that fed four industries. Both are the same graph problem.AUG 7, 2026Beef Lasagne, Five Countries, One Graph: The Horsemeat Scandal and Neo4jA frozen lasagne crossed five countries before anyone could name what was in it. The fix wasn't more paperwork — it was modelling the supply chain.AUG 1, 2026From Spreadsheet to Substitution Engine: Building an Agricultural Knowledge Graph in Neo4j, Layer by LayerBuild an agricultural knowledge graph one public data source at a time, and watch the questions it can answer get more interesting with every layer.JUL 22, 2026Agriculture Already Has Its Ontologies. The Knowledge Graph Is Where They Expire.The ontology is the easy part. Keeping its facts from going stale is the whole job.
LinkedIn ↗SHORT TAKES Shorter takes and project notes from ongoing graph work.
03 — SELECTED WORK
Polish plant-protection product register → NEO4J · GRAPHRAG · Q&A DEMO

A graph of registered pesticide products, active substances, crops, target pests, application windows and dosage — built from official register data and product labels, with a working question-answering demo.

04 — CONTACT

Working on a graph?

I take on consulting engagements, knowledge-graph reviews, and collaboration on graph projects. Send me a few lines about your graph on LinkedIn — I reply to every serious message.

Message me on LinkedIn ↗