# Bilig WorkPaper MCP server

Formula-backed WorkPaper tools for workbook readback, input edits, and JSON persistence.

## Links
- Registry page: https://www.getdrio.com/mcp/io-github-proompteng-bilig-workpaper
- Repository: https://github.com/proompteng/bilig

## Install
- Command: `npx -y @bilig/headless`
- Endpoint: https://bilig.proompteng.ai/mcp
- Auth: Not captured

## Setup notes
- Package: Npm @bilig/headless v0.27.0
- Remote endpoint: https://bilig.proompteng.ai/mcp

## Tools
- list_sheets (List WorkPaper Sheets) - Discover sheet names and used dimensions before reading or editing a WorkPaper. Returns metadata only; use read_range or read_cell for values. Endpoint: https://bilig.proompteng.ai/mcp
- read_range (Read WorkPaper Range) - Read calculated values plus serialized formulas/inputs for an A1 range. Use for audit readback after edits; use read_cell for one address. Endpoint: https://bilig.proompteng.ai/mcp
- read_cell (Read WorkPaper Cell) - Read one cell with calculated value, display text, formula text, and serialized content. Use after set_cell_contents to verify readback. Endpoint: https://bilig.proompteng.ai/mcp
- set_cell_contents (Set WorkPaper Cell Contents) - Write raw content to one cell and recalculate dependents in memory only. Start with --writable when the edit should persist to JSON. Endpoint: https://bilig.proompteng.ai/mcp
- get_cell_display_value (Get WorkPaper Cell Display Value) - Return the formatted display string for one cell. Use when an agent needs what a user would see, not the raw numeric value. Endpoint: https://bilig.proompteng.ai/mcp
- export_workpaper_document (Export WorkPaper Document) - Export the current WorkPaper JSON document for persistence, review, or handoff to another agent. Does not write files by itself. Endpoint: https://bilig.proompteng.ai/mcp
- validate_formula (Validate WorkPaper Formula) - Validate formula syntax with the WorkPaper parser before writing it to a cell. This checks syntax only; use set_cell_contents plus readback to evaluate. Endpoint: https://bilig.proompteng.ai/mcp

## Resources
- bilig://workpaper/manifest - WorkPaper MCP Manifest Live manifest of the current WorkPaper file, available tools, prompts, resources, and verification contract. MIME type: application/json
- bilig://workpaper/agent-handoff - WorkPaper Agent Handoff Compact instructions for agents that need to edit workbook formulas without spreadsheet UI automation. MIME type: text/markdown
- bilig://workpaper/sheets - WorkPaper Sheets Current sheet names and used dimensions for the loaded WorkPaper document. MIME type: application/json
- bilig://workpaper/current-document - Current WorkPaper Document Current persisted WorkPaper JSON document as exported from the in-memory engine. MIME type: application/json

## Prompts
- edit_and_verify_workpaper - Edit And Verify WorkPaper Guide an agent through a safe WorkPaper edit: read before, validate target, write one cell, read computed output, export JSON, and report proof. Arguments: task, target_cell, output_range
- debug_workpaper_formula - Debug WorkPaper Formula Guide an agent through formula validation and readback when a WorkPaper formula or dependent output looks wrong. Arguments: formula, cell, symptom

## Metadata
- Owner: io.github.proompteng
- Version: 0.27.0
- Runtime: Npm
- Transports: STDIO, HTTP
- License: Not captured
- Language: Not captured
- Stars: Not captured
- Updated: May 19, 2026
- Source: https://registry.modelcontextprotocol.io