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How to trace a wrong cell to its source and send notes back with Open Sheet

Use inspect mode to see a cell's source line and formula, then leave a note for your agent.

Who it is forA reviewer who must check a model's numbers before a board, client or colleague sees them.

The problemReviewing a binary spreadsheet diff is slow, and it is hard to tell which logic produced a wrong number.

The outcomeEach questioned cell traced to its source line, resolved formula and computed value, with the agent applying the notes.

What you need first

  • Node
  • npm or pnpm
  • A coding agent or text editor
  • A local dev server to preview the sheet

Steps

  1. cd my-sheets && npm install && npm run dev
  2. Open the viewer and turn on inspect mode.
  3. Click a cell to see its source line, its resolved formula and its computed value.
  4. Leave a note on any cell that looks wrong.
  5. Ask your agent to apply the comments with the /apply-comments skill, then check any cell still showing #NOT_EVALUATED.

Prompt for your agent

In the open-sheet project at <project path>, collect the notes left in inspect mode on the sheet <sheet name> and apply them with the /apply-comments skill. Expected output: the source file edited for each note. Verify by listing any cell that still shows #NOT_EVALUATED and explaining why.

Caveat. The README names /apply-comments as a skill but does not say which agents load it, so confirm your agent reads the scaffolder's skills.

Use this in your AI agent

Ask your agent

Using the Deduped MCP, get the setup steps for lianghsun/open-sheet and "Trace a wrong cell to its source and send notes back"

Add Deduped to Claude Code once

claude mcp add --transport http deduped https://dedupedai.com/mcp

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