Show and tell: WorkPaper MCP extension for spreadsheet formula readback

[gregkonush]

I made a Gemini CLI extension for a local WorkPaper MCP server:

https://github.com/proompteng/bilig

Install:

gemini extensions install https://github.com/proompteng/bilig --ref main

What it is for: when Gemini needs spreadsheet-style business logic, but a browser or Excel session is the wrong execution boundary. The extension starts Bilig's WorkPaper MCP server, so Gemini can list sheets, edit an input cell, recalculate formulas, read the computed output, and persist JSON state.

The default local smoke path is intentionally no-credential. A useful first prompt is:

Use the Bilig WorkPaper tools. List sheets, read Inputs!B3, set Inputs!B3 to =0.4, read the recalculated output, and tell me whether the WorkPaper JSON persisted.

Docs:
https://proompteng.github.io/bilig/gemini-cli-workpaper-extension.html

Manifest:
https://github.com/proompteng/bilig/blob/main/gemini-extension.json

This is not asking Gemini CLI to add anything. I am sharing the extension because spreadsheet formula readback is one of those places where an agent should have a deterministic tool contract instead of trying to drive a spreadsheet UI.

[aniruddhaadak80]

Hey there. Thanks for sharing this.

MCP extensions are incredibly powerful. We are always excited to see the community building new server protocols.

Feel free to share a link to your repository so others can try it out.