AI Blocks › Track your numbers
Analysis checker
Give it an analysis before you share it. Get a check of the method, the math and any bias.
Analysis checker is a free AI skill for the job "Track your numbers". Give the instructions to an AI assistant that supports the required files and tools, then review its output.
Free · No account · Apache 2.0 licence · Made by Anthropic · Thinking: high
Made by Anthropic. See the original on GitHub; we copied it as it is, with its licence.
What it does
Catch errors in your analysis before anyone else does. It checks the method, the maths and bias, then gives a confidence rating and fixes. It first asks whether you answered the right question, used the right data, defined the population well and made a fair comparison. Then it runs a pre-delivery checklist covering data quality, calculations, reasonableness and presentation. It hunts for known traps: join explosion, survivorship bias, part-period comparisons and a shifting denominator. It recalculates a few key numbers independently. It accepts a report, notebook, spreadsheet, SQL with results, or just a description.
You give it
- The analysis as a report, file, query or description
- The question it was meant to answer (optional)
- Who will read it (optional)
You get
- A review of method and assumptions
- Results of the pre-delivery checklist
- Any pitfalls found
- A confidence rating and fixes
Use it when
- You are about to send numbers to leadership and want a second look.
- A chart looks too good and you want to know why.
- You inherited someone else's analysis and do not trust it yet.
- You want to be sure your comparison is fair.
How to use it
- Add it to your AI once: download it and add the folder to Claude, ChatGPT or Codex as a skill.
- Ask for the job in your own words. Your AI opens the skill when it fits.
- It works best when your AI can run code.