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type: initiative slug: external-context-sources title: External Context Sources workstream: context-catalog-nimble owner: data-ai-engineer-architect status: planned milestone: mx-far-future-ideas

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External Context Sources

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Objective

Enrich the catalog with context from sources outside the warehouse: application source code repos, BI tools (LookML, Tableau, Metabase, Superset, Power BI), query log mining, and BI usage corpus. Brings human-validated business logic, metric definitions, code-level schema intent, and usage patterns into the catalog.

Scope

Semantic Modeling Connectors

LookML, dbt MetricFlow, Power BI, Tableau, Superset, Metabase — formal metric definitions and join logic.

BI Usage Corpus

Searchable index of existing dashboards and charts across connected BI tools.

Query Intelligence

Mine warehouse query logs for join patterns, implicit required filters, and common GROUP BY granularity.

Deliverables

• [ ] Define scope and decision boundaries.
• [ ] Produce implementation plan and execution checkpoints.
• [ ] Capture rollout and validation approach.

Links

• Research
• Spec
• Decisions