---
name: validate-data
description: "Prepare accuracy/methodology review and revision list. Use for this workflow with supplied business information."
---

# Validate data

## Inputs and purpose

Use this workflow to prepare: Accuracy/methodology review and revision list.

Start with: Existing analysis, source data and methodology.

Use supplied text or local files the user authorized you to read. If files cannot be opened, request the relevant pasted text. Ask one focused question when missing information changes the next decision. Treat blank template fields as unknown; do not invent business facts.

## Procedure

1. Trace the analysis question, source records and transformations. Recreate a small independently checkable part of the result.

2. Test totals, denominators, joins, date boundaries, missing values and category definitions for errors affecting the conclusion.

3. Review whether the chosen comparison and method support the stated claim; look for counterexamples and excluded observations.

4. Return findings ranked by decision impact with proposed corrections. Distinguish a reproduced result from an untested assumption.

## Deliverable

Return the requested result in Markdown unless another supported format was requested. Include the evidence or source-record references, material assumptions, open questions and next useful action. Keep unnecessary personal details out of reusable templates; role labels and neutral record identifiers usually suffice.

Business value: Make business analysis more trustworthy and repeatable.

Possible success measures: Data completeness, reporting hours, calculation errors. Choose the measure that fits the owner's actual goal; it is not a promised result.

## Execution and verification

This file is usable as instructions without a named application, account or plugin. Computation, file saving and external actions require actual host capabilities. Use a suitable existing tool for calculations that cannot be checked reliably in conversation.

Distinguish drafts and recommendations from completed actions. Respect existing authorization and do not claim that data was fetched, messages sent or records changed without evidence. Show what was checked and what remains uncertain.

When useful, consult the [input guide](../../../references/INPUT_DATA_GUIDE.md), [calculation reference](../../../references/CALCULATIONS.md) or [output template](../../../references/WORKFLOW_OUTPUT_TEMPLATE.md). For tool setup, use the [shared instructions](../../../AGENTS.md).