Data Lake Platform

Build and operate production data lakes and lakehouses: ingest, transform, store in open formats, and serve analytics reliably.

When to Use

• Design data lake/lakehouse architecture
• Set up ingestion pipelines (batch, incremental, CDC)
• Build SQL transformation layers (SQLMesh, dbt)
• Choose table formats and catalogs (Iceberg, Delta, Hudi)
• Deploy query/serving engines (Trino, ClickHouse, DuckDB)
• Implement streaming pipelines (Kafka, Flink)
• Set up orchestration (Dagster, Airflow, Prefect)
• Add governance, lineage, data quality, and cost controls

Triage Questions

1. Batch, streaming, or hybrid? What is the freshness SLO?
2. Append-only vs upserts/deletes (CDC)? Is time travel required?
3. Primary query pattern: BI dashboards (high concurrency), ad-hoc joins, embedded analytics?
4. PII/compliance: row/column-level access, retention, audit logging?
5. Platform constraints: self-hosted vs cloud, preferred engines, team strengths?

Default Baseline (Good Starting Point)

• Storage: object storage + open table format (usually Iceberg)
• Catalog: REST/Hive/Glue/Nessie/Unity (match your platform)
• Transforms: SQLMesh or dbt (pick one and standardize)
• Lake query: Trino (or Spark for heavy compute/ML workloads)
• Serving (optional): ClickHouse/StarRocks/Doris for low-latency BI
• Governance: DataHub/OpenMetadata + OpenLineage
• Orchestration: Dagster/Airflow/Prefect

Workflow

1. Pick table format + catalog:

   references/storage-formats.md

   (use

   assets/cross-platform/template-schema-evolution.md

   and

   assets/cross-platform/template-partitioning-strategy.md

   )
2. Design ingestion (batch/incremental/CDC):

   references/ingestion-patterns.md

   (use

   assets/cross-platform/template-ingestion-governance-checklist.md

   and

   assets/cross-platform/template-incremental-loading.md

   )
3. Design transformations (bronze/silver/gold or data products):

   references/transformation-patterns.md

   (use

   assets/cross-platform/template-data-pipeline.md

   )
4. Choose lake query vs serving engines:

   references/query-engine-patterns.md

5. Add governance, lineage, and quality gates:

   references/governance-catalog.md

   (use

   assets/cross-platform/template-data-quality-governance.md

   and

   assets/cross-platform/template-data-quality.md

   )
6. Plan operations + cost controls:

   references/operational-playbook.md

   and

   references/cost-optimization.md

   (use

   assets/cross-platform/template-data-quality-backfill-runbook.md

   and

   assets/cross-platform/template-cost-optimization.md

   )

Architecture Patterns

• Medallion (bronze/silver/gold):

  references/architecture-patterns.md

• Data mesh (domain-owned data products):

  references/architecture-patterns.md

• Streaming-first (Kappa):

  references/streaming-patterns.md

• Diagrams/mermaid snippets:

  references/overview.md

Quick Start

dlt + ClickHouse

pip install "dlt[clickhouse]"
dlt init rest_api clickhouse
python pipeline.py

SQLMesh + DuckDB

pip install sqlmesh
sqlmesh init duckdb
sqlmesh plan && sqlmesh run

Reliability and Safety

Do

• Define data contracts and owners up front
• Add quality gates (freshness, volume, schema, distribution) per tier
• Make every pipeline idempotent and re-runnable (backfills are normal)
• Treat access control and audit logging as first-class requirements

Avoid

• Skipping validation to "move fast"
• Storing PII without access controls
• Pipelines that can't be re-run safely
• Manual schema changes without version control

Resources

Resource	Purpose
references/overview.md	Diagrams and decision flows
references/architecture-patterns.md	Medallion, data mesh
references/ingestion-patterns.md	dlt vs Airbyte, CDC
references/transformation-patterns.md	SQLMesh vs dbt
references/storage-formats.md	Iceberg vs Delta
references/query-engine-patterns.md	ClickHouse, DuckDB
references/streaming-patterns.md	Kafka, Flink
references/orchestration-patterns.md	Dagster, Airflow
references/bi-visualization-patterns.md	Metabase, Superset
references/cost-optimization.md	Cost levers and maintenance
references/operational-playbook.md	Monitoring and incident response
references/governance-catalog.md	Catalog, lineage, access control

Templates

Template	Purpose
assets/cross-platform/template-medallion-architecture.md	Baseline bronze/silver/gold plan
assets/cross-platform/template-data-pipeline.md	End-to-end pipeline skeleton
assets/cross-platform/template-ingestion-governance-checklist.md	Source onboarding checklist
assets/cross-platform/template-incremental-loading.md	Incremental + backfill plan
assets/cross-platform/template-schema-evolution.md	Schema change rules
assets/cross-platform/template-cost-optimization.md	Cost control checklist
assets/cross-platform/template-data-quality-governance.md	Quality contracts + SLOs
assets/cross-platform/template-data-quality-backfill-runbook.md	Backfill incident/runbook

Related Skills

Skill	Purpose
ai-mlops	ML deployment
ai-ml-data-science	Feature engineering
data-sql-optimization	OLTP optimization