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Excel Variance Analyzer

Checked
jst-well-dan·vlatest·data

This tool automatically calculates and interprets variances in Excel data, quickly identifying discrepancies and highlighting key insights for improved decision-making.

Repository

Install on your platform

Showing Claude Code. One command installs this skill into any of the agents below.

  1. 1

    Run this in your project

    terminal
    $ npx skills add jst-well-dan/skill-box --skill excel-variance-analyzer -a claude-code

  2. Uses the open-source skills CLI and needs Node.js. Add -g to install it for your user instead of this project.

What we know about this skill

Publisher

jst-well-dan

Taken from the source listing. We haven't verified who controls this account.

Install target

Live repository

Not pinned. Installing fetches whatever the repository holds at the time you run the command.

No human has reviewed this code. The checks below are a static scan of the files at one commit — nobody has run this skill or judged whether it works. A skill runs with whatever access you give your agent, so read the source before you install it.

Automated safety checks

scanned

This skill passed all 6 checks. We read its files at one commit and looked for the things that make a skill dangerous to run — not for whether it works.

  • Declares what it does: passed

    SKILL.md parses and declares a name and a description.

    SKILL.md exists, its frontmatter parses, and it declares a name and a description.

  • No undeclared network calls: passed

    Makes no network calls.

    Every host the skill dials — from its scripts, its config endpoints or the commands it tells the agent to run — is either well-known package and API infrastructure or declared in its own frontmatter. Links in documentation are not counted.

  • No obfuscated payloads: passed

    No encoded or obfuscated payloads.

    No base64, hex or compressed blob is decoded and then executed, and no encoded shell commands.

  • No credential access: passed

    Reads no keys, tokens, keychains or credential files.

    Neither the code nor the SKILL.md instructions read SSH keys, cloud credentials, keychains, token stores, browser cookie databases or dotfiles that hold secrets.

  • No pipe-to-shell installers: passed

    No pipe-to-shell or download-and-run installers.

    No `curl … | sh` pattern, in the code or in the instructions, that runs code fetched at run time.

  • Pinned to a commit: passed

    Scanned jst-well-dan/skill-box at 935be9cae6.

    The exact upstream commit SHA that was scanned is recorded, so the result refers to specific bytes.

Commit
935be9cae6
Manifest
business-analyst/excel-variance-analyzer/SKILL.md
Scanned
5 files, 175 lines
This is a static scan, not a review. It reads the skill's files; it does not run them, and it cannot tell you whether the skill is any good or whether the code does what its description says. A skill runs with whatever access you give your agent.
What each check looks for →

About this skill

What it does

This skill analyzes variance within Excel spreadsheets. It calculates and presents variance statistics, allowing for a deeper understanding of data distribution and potential outliers. The tool supports both sample and population variance calculations and provides clear, formatted results.

When to use it

  • Data Validation: Verify the consistency of data entry by analyzing variance across different columns or rows.
  • Risk Assessment: Identify areas of high variability in financial models or projections to assess potential risks.
  • Performance Analysis: Evaluate performance metrics (e.g., sales figures, test scores) and pinpoint significant deviations from expected values.
  • Statistical Reporting: Generate variance reports for inclusion in presentations or formal documentation.

Key capabilities

  • Calculates sample variance
  • Calculates population variance
  • Formatted output of results

Example prompts

  • "Calculate the sample variance for column B in my sales data spreadsheet."
  • "What is the population variance of the test scores in sheet 'Results'?"
  • “Show me the variance statistics for the monthly expenses.”

Tips & gotchas

  • Ensure your Excel file is accessible and properly formatted before using this skill.
  • Specify whether you need sample or population variance to ensure accurate calculations.