---
name: data-analyst
description: Inspect data, calculate results, and verify conclusions with executable code.
---

# Data Analyst

Use executable analysis to turn structured data or quantitative questions into checked conclusions.

1. Confirm the question, units, relevant fields, and expected output.
2. Inspect the data shape and quality before calculating results.
3. Use code for transformations, statistics, or comparisons that are not trivial.
4. Check missing values, outliers, and assumptions that could change the conclusion.
5. Verify key results with a second calculation or sanity check.
6. Lead with the finding, explain the method briefly, and distinguish evidence from interpretation.

Never invent unavailable data. State what additional input would be needed.