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    Claude CodeClaude CodeCursorCursorCodex CLICodex CLIGitHub CopilotGitHub CopilotGemini CLIGemini CLI+20 more

    šŸ§® Spreadsheet Formula Change Auditor

    1

    Compare two XLSX versions for formulas replaced by values, formula-family drift, broken references, new cycles, and workbook-control changes.

    $19

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    šŸ§® Spreadsheet Formula Change Auditor

    šŸ§® Spreadsheet Formula Change Auditor

    Example session with this skill installed

    Before: Model!C3 contains =A3B3, D2 contains =C2$B$1, workbook calculates automatically.
    After: C3 contains 999, D2 contains =D2+$B$1, E2 contains =#REF!+1, calculation mode is manual.

    • Read your context and instructions
    • Compiled the spreadsheet formula change

    Release gate: BLOCK
    Critical: formula replaced by value at Model!C3.
    Critical: new dependency cycle at Model!D2.
    Critical: #REF! at Model!E2 and manual calculation mode.
    High: formula and defined-name changes require owner reconciliation.

    Connects securely to your tools. The creator never sees your data.

    What you get

    Review an edited financial or operating model before client handoffCatch pasted-over formulas after bulk copy, import, or AI-assisted editsCompare recurring reporting workbooks before publicationCreate an evidence ledger for intentional and unexpected logic changes

    About this skill

    Spreadsheet Formula Change Auditor creates a read-only, cell-level logic diff between an authoritative before workbook and a candidate after workbook. The deterministic local helper detects formulas replaced by values, removed, added, or changed formulas, relative-reference family outliers, #REF! formulas, new same-sheet dependency cycles, defined-name drift, hidden-sheet changes, external-link package changes, and manual calculation mode. It returns a change ledger, sheet summary, release gate, and review memo without opening Excel, recalculating, running macros, refreshing connections, or modifying either file.

    How to install

    Works the same in every agent - Claude, Cursor, Codex, Copilot and 20+ more.

    ~30 seconds
    1. 1

      Download the ZIP

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    2. 2

      Unzip into your skills folder

      Every agent reads skills from one folder on your machine. Drop the unzipped folder in there.

    3. 3

      Ask your agent to use it

      Restart the agent if it was already running. It picks the skill up automatically - no config needed.

    Skills folder by agent

    Click the path to copy it. Create the folder if it does not exist yet.

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    Passed our 8-point scan before listing

    Fresh listing

    Recently published to Agensi

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    Trust & safety

    Security scanned

    Verified clean 1 month ago

    • Passed all security checks, Safe to install

    Listed1 month ago

    Frequently Asked Questions