← Refinery/Stratum S2Weeks 2–6 · semantic layer live by day 35Pressure 88

Shape — Data contracts · dbt · OpenLineage

Shape is where raw signal becomes a contract. Every metric has an owner, every column has lineage, every breaking change has a deprecation path. Your AI ecosystem stops asking 'which number is right?' because there's only one.

Schema stability

99.1%

Test coverage

>92% of gold

Lineage depth

Column-level

Commission this stratum →See deliverables

Deliverables

Everything that ships

Data contracts (per producer)
Versioned, code-reviewed, CI-enforced producer contracts.
dbt semantic layer
Conformed dimensions, metric definitions, exposure mapping.
OpenLineage graph
Column-level lineage from source → metric → dashboard → model.
Quality test suite
Great Expectations / dbt tests on every silver+gold model.
Glossary & ownership
Single source of truth for terms, owners, SLAs.

Pod composition

Analytics Engineer
Domain Architect
Product Owner

Example output · Metric definition · revenue_netsql

metric: revenue_net
  description: Net booked revenue, ex-VAT, post-refund
  type: sum
  sql: orders.gross - orders.refund - orders.vat
  dimensions: [region, channel, sku]
  owner: finance-platform
  sla: refresh<5m, freshness<10m

Timeline

Weeks 2–6 · semantic layer live by day 35

1
Weeks 2–3
Contract authoring
Producers commit versioned contracts; CI blocks breaking changes.
2
Weeks 3–5
Semantic layer
dbt models, conformed dims, metric layer exposed to BI + agents.
3
Weeks 5–6
Lineage + tests
OpenLineage column graph + GE/dbt tests gating every gold model.

FAQs

Things prospects ask

Do you require dbt?

Strongly preferred but not mandatory — we support SQLMesh and Dataform in regulated stacks.

What happens when a producer breaks contract?

CI blocks the PR, the metric pauses, consumers fall back to the last known good snapshot. No silent corruption.

Commission · S2 Shape

Stand up Shape in Weeks 2–6.

We'll respond within one business day with a scoping note, a fixed-price outcome contract, and a named principal. Your details sync straight into our concierge queue.

• Outcome-priced — no T&M.
• Sovereign by default — your data, your region, your keys.
• Wired into the Fuel Pressure gauge from day one.