Individual skill
databricks-uc-migration-pilot
Pilot a Databricks Hive Metastore (HMS) → Unity Catalog (UC) migration before the deadline — audit every table's migratability, produce a dependency-ordered migration plan, trace UC's two-level permission model, and pick an environment isolation pattern. Use when a user asks how to migrate off the Hive metastore, move to Unity Catalog, which tables are UC-ready, why a table won't migrate, why a user lacks access after migration, or how to isolate dev/test/prod under UC. Trigger with "migrate to unity catalog", "hive metastore migration", "uc migration", "which tables can migrate", "unity catalog permission".
skills/.curated/databricks-uc-migration-pilot/SKILL.md
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SKILL.mdcore · 17,543 bytesSKILL.mdcore · 17,543 bytesSKILL.mdcore · 17,543 bytesSKILL.mdcore · 17,543 bytesSKILL.mdcore · 17,543 bytesagents/migration-planner.mddoc · 4,236 bytesagents/uc-permission-tracer.mddoc · 4,530 bytescommands/audit-hms-readiness.mddoc · 1,552 bytescommands/trace-uc-permission.mddoc · 1,621 bytescommands/uc-env-pattern-picker.mddoc · 1,881 bytesdocs/ADR.mddoc · 11,405 bytesdocs/ONE-PAGER.mddoc · 4,921 bytesdocs/PRD.mddoc · 9,365 byteseval-spec.yamlasset · 6,289 bytesreferences/scim-bridge-patterns.mddoc · 15,311 bytesreferences/system-tables-access-model.mddoc · 12,847 bytesreferences/uc-environment-isolation-patterns.mddoc · 13,705 bytesreferences/uc-migration-blockers.mddoc · 15,860 bytesscripts/audit-hms-readiness.pyruns · 11,147 bytesscripts/enable-system-schemas.pyruns · 10,275 bytes
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# Databricks Unity Catalog Migration Pilot
Pilots a Hive Metastore → Unity Catalog migration end to end: it audits which
tables can migrate (and why the rest cannot), turns that audit into a
dependency-ordered execution plan, traces UC's two-level permission model when
access breaks, and picks an environment-isolation pattern for the
one-metastore-per-region constraint.
## Overview
**The September 30, 2026 forcing function.** Databricks is deprecating the legacy
Hive Metastore. On the cutover date the `hive_metastore` catalog goes
**read-only** — no new writes, no schema changes — and stays available only for
read-through while you migrate. Everything that writes to HMS (jobs, DLT