leo-claude-mktplace/plugins/data-platform/commands/data-schema.md

/schema - Schema Exploration

Skills to Load

• skills/mcp-tools-reference.md
• skills/visual-header.md

Visual Output

Display header: DATA-PLATFORM - Schema Explorer

Usage

/schema [table_name | data_ref]

Workflow

1. Determine target:

   • DataFrame: show pandas schema via describe
   • Database table: query via pg_columns
   • No argument: list all tables and DataFrames

2. For DataFrames: Show dtypes, null counts, sample values

3. For database tables: Show columns, types, constraints, indexes

4. For PostGIS: Include geometry type and SRID via st_tables

Examples

/schema                    # List all tables and DataFrames
/schema customers          # Show table schema
/schema sales_data         # Show DataFrame schema

Required MCP Tools

• pg_tables - List database tables
• pg_columns - Get column info
• pg_schemas - List schemas
• st_tables - List PostGIS tables
• describe - Get DataFrame info
• list_data - List DataFrames