Bilig

vlibraries-v0.40.30 scope: libraries Feature

This release adds 2 notable features for engineering teams evaluating rollout.

Published 14d Developer Productivity

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✓ No known CVEs patched

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✓ No known CVEs patched in this version

Topics

agent-tools ai-agents excel excel-formulas formula-engine formula-recalculation

+14 more

headless-spreadsheet mcp mcp-server model-context-protocol nodejs spreadsheet spreadsheet-automation spreadsheet-engine spreadsheet-formulas typescript workbook-api xlsx xlsx-formulas xlsx-recalculation

ReleasePort's take

Light signal

editorial:auto 14d

Bilig v0.40.30 reduces XLSX import memory pressure and aligns versions across @bilig libraries. Adds bilig-workpaper.mcpb for Claude Desktop MCP integration.

Why it matters: Test XLSX import efficiency improvements in dev; teams using multiple @bilig packages should update for version consistency. Claude Desktop MCP integration now available.

Summary

AI summary

Updates What changed, Release metadata, and Commit across a mixed release.

Changes in this release

Type	Severity	Summary	CVE
Feature	Medium	Published the bilig-workpaper.mcpb bundle for Claude Desktop / MCP-style WorkPaper tool use. Published the bilig-workpaper.mcpb bundle for Claude Desktop / MCP-style WorkPaper tool use. Source: granite4.1:8b-q6_K@2026-05-21 Confidence: low	—
Dependency	Medium	Kept the latest library release aligned across @bilig/workpaper, @bilig/headless, @bilig/xlsx-formula-recalc, @bilig/sheetjs-formula-recalc, and @bilig/exceljs-formula-recalc. Kept the latest library release aligned across @bilig/workpaper, @bilig/headless, @bilig/xlsx-formula-recalc, @bilig/sheetjs-formula-recalc, and @bilig/exceljs-formula-recalc. Source: granite4.1:8b-q6_K@2026-05-21 Confidence: low	—
Performance	Medium	Reduced memory pressure in XLSX import by storing rare arena integers sparsely. Reduced memory pressure in XLSX import by storing rare arena integers sparsely. Source: granite4.1:8b-q6_K@2026-05-21 Confidence: high	—

Full changelog

Libraries v0.40.30

Bilig is a formula WorkPaper runtime for Node.js services and agent tools: edit cells, recalculate, verify readback, and persist JSON without driving Excel, LibreOffice, or a browser grid.

What changed

Reduced memory pressure in XLSX import by storing rare arena integers sparsely.
Kept the latest library release aligned across @bilig/workpaper, @bilig/headless, @bilig/xlsx-formula-recalc, @bilig/sheetjs-formula-recalc, and @bilig/exceljs-formula-recalc.
Published the bilig-workpaper.mcpb bundle for Claude Desktop / MCP-style WorkPaper tool use.

Try it

npm create @bilig/workpaper@latest pricing-agent -- --agent
npm install @bilig/workpaper
npm install @bilig/xlsx-formula-recalc
npm exec --package @bilig/[email protected] -- bilig-workpaper-mcp --workpaper ./pricing.workpaper.json --init-demo-workpaper --writable

Ask the indexed docs: https://context7.com/proompteng/bilig

Repo: https://github.com/proompteng/bilig
Docs: https://proompteng.github.io/bilig/
MCPB bundle: https://github.com/proompteng/bilig/releases/download/libraries-v0.40.30/bilig-workpaper.mcpb

Fit

Use this release when you need spreadsheet-shaped business logic in a backend job, MCP server, or coding-agent workflow and you need explicit readback after writes. Keep validating Excel-compatibility-sensitive XLSX files against Excel or LibreOffice when exact desktop behavior matters.

Release metadata

Release type: patch
Previous libraries tag: libraries-v0.40.29
Manual override: no

Commit

perf(xlsx): store rare arena integers sparsely (1a52eb87)

View diff on GitHub

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