Open Data Infrastructure
dbt Core Semantic Contracts for Retrieval Context
How dbt Core semantic models, metrics, contracts, tests, and documentation can give retrieval systems context they can inspect.
Retrieval systems love text. Business users need meaning. Those are not the same problem.
Retrieval needs semantic contracts
A retrieval system can return documentation, metric definitions, lineage notes, and model descriptions. That does not mean it understands which definition is authoritative, which metric changed, or which model contract still applies.
dbt Core sits close to transformation logic, source definitions, model contracts, tests, exposures, and semantic modeling. That makes it a useful input to AI-ready context when the retrieval layer treats dbt metadata as structured evidence instead of text decoration.
dbt already carries useful meaning
dbt documentation describes semantic models, metrics, sources, source freshness, and model contracts. Those objects can describe entities, measures, dimensions, source SLAs, downstream use, and shape expectations. Retrieval should preserve those distinctions.
Core idea: a semantic contract for retrieval says which context is authoritative, current, allowed, and tied to a real data product.
Make context inspectable
Treat dbt metadata as a structured context source. Store model name, version, contract state, freshness signal, owner, tests, metrics, exposures, and lineage. When a retrieval result cites a metric, the answer should show the semantic model and contract that made it safe to use.
For related guidance, read dbt source contracts for AI-ready lineage, dbt contracts and catalog metadata drift, and AI-ready context source ranking tests.
What breaks first
- Retrieval prefers the most popular metric definition instead of the current semantic model.
- A model contract fails, but the context index still serves old documentation.
- Source freshness is visible in dbt but not in the answer path.
- Exposures show downstream use, yet the agent response omits consumer impact.
Semantic contract questions
Ask whether the retrieval layer can identify the authoritative model, metric, freshness status, owner, and contract state. If the system only retrieves prose, it is not a semantic contract yet.
Sources to start with
These primary sources anchor the technical claims in this guide.
- dbt semantic models documentation
- dbt metrics documentation
- dbt model contracts documentation
- OpenLineage object model documentation
The context layer should retrieve meaning, not just words that sound relevant.