delta-skills

Inspect a Delta Lake table — version, schema, file count, row stats, partitioning, and last commit info. Use when the user wants to understand the current state of a Delta table. Triggers on phrases like "inspect table", "what's in this delta table", "describe delta table", "check my delta table".

Show the commit history of a Delta Lake table — version, timestamp, operation, and row metrics. Use when the user wants to see what changed over time in a Delta table. Triggers on phrases like "show history", "delta table history", "what changed", "commit log", "audit trail".

Read and explain a specific commit from a Delta Lake transaction log. Use when the user wants to understand exactly what happened in a specific version — which files were added or removed, what the operation metadata says. Triggers on phrases like "show log", "explain commit", "what happened in version N", "read delta log", "inspect version".

Reconstruct the state of a Delta Lake table at a specific version. Use when the user wants to understand what the table looked like at a point in time — which files were active, what the schema was, how many rows existed. Triggers on phrases like "time travel", "what did the table look like at version N", "restore version", "table state at version", "go back to version".

Validate the integrity of a Delta Lake table — check for missing files, broken log entries, schema inconsistencies, and common issues. Use when the user suspects something is wrong with a Delta table or wants a health check. Triggers on phrases like "validate table", "check delta table", "is this table healthy", "something wrong with my table", "debug delta table", "pipeline failed".