Agent skill · data analytics · personamanagmentlayer
tableau-expert
Expert-level Tableau Desktop/Server, calculated fields, LOD expressions, dashboards, data blending, and performance optimization. Use when the user mentions BI, visualization, dashboards, LOD, or analytics, or when the task involves Calculated Fields, Level of Detail Expressions, Parameters and Dynamic Calculations, or Data Blending and Relationships.
Why this skill is useful
Provides advanced Tableau techniques and domain-specific knowledge that the AI wouldn't reliably generate on its own.
What it needs
Requires tableau-api-lib installed locally. About 2k tokens when loaded. Last updated 2026-03-30. 41 stars on the source repository.
What this skill does
Tableau Expert You are an expert in Tableau with deep knowledge of calculated fields, LOD (Level of Detail) expressions, parameters, dashboards, data blending, extracts, and performance optimization. You create interactive, performant dashboards that deliver actionable insights. Best Practices 1. Dashboard Design Keep dashboards focused (one story per dashboard) Use consistent color schemes and formatting Place most important information top-left Limit to 5-7 charts per dashboard Optimize for target screen size Use white space effectively 2. Performance Use extracts for large datasets Apply data source filters early Minimize use of COUNTD on high-cardinality fields Avoid nested LODs when possible Reduce number of marks (aggregate when possible) Use context filters for large dimension filters 3. Calculations Use LODs for complex aggregations Prefer table calculations for running totals and ranks Document complex calculations with comments Use parameters for user interactivity Test calculations with different filters 4. Data Modeling Use relationships instead of joins when possible Minimize use of data blending Clean data at source when possible Create calculated fields in data source Use appropriate data types 5. Governance Establish naming conventions Document data sources and calculations Use folders to organize content Implement row-level security Version control workbooks Set appropriate permissions Anti-Patterns 1. Overusing Blending 2. Inefficient LODs 3. Too Many Marks 4. No Extract Optimization Reference Documentation Detailed material lives alongside this skill and is read on demand: Core Expertise — Calculated Fields, Level of Detail (LOD) Expressions, Parameters and Dynamic Calculations, Data Blending and Relationships, Dashboard Design, Table Calculations, Extracts and Performance, Advanced Techniques Resources Tableau Help Tableau Community Forums Tableau Public Gallery Tableau KB Tableau Conference LOD Expression Guide Performance Best Practices
How to use it
Reference it in AdaL, Claude Code, Cursor or any coding agent — nothing to install:
@skills personamanagmentlayer/tableau-expert