Bilig

vlibraries-v0.57.0 scope: libraries Feature

This release adds 4 notable features for engineering teams evaluating rollout.

Published 12d Developer Productivity

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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 11d

Libraries v0.57.0 introduces multiple formula‑handling improvements and headless performance optimizations.

Why it matters: The release adds structured reference preservation, immutable plan verification, conditional format artifact handling, and skips empty structural inserts in headless mode—impacting workbooks and Excel processing efficiency.

Summary

AI summary

Libraries v0.57.0 updates formula handling, workbook metadata validation, engine conditional format support, and headless performance optimizations.

Changes in this release

Type	Severity	Summary	CVE
Feature
Feature	Medium	feat(formula): preserve native structured references feat(formula): preserve native structured references Source: llm_adapter@2026-05-23 Confidence: high	—
Feature	Medium	feat(workbook): avoid mutating model configs feat(workbook): avoid mutating model configs Source: llm_adapter@2026-05-23 Confidence: high	—
Feature	Medium	feat(workbook): require own action metadata feat(workbook): require own action metadata Source: llm_adapter@2026-05-23 Confidence: high	—
Feature	Medium	feat(workbook): freeze planned action handoffs feat(workbook): freeze planned action handoffs Source: llm_adapter@2026-05-23 Confidence: high	—
Feature	Medium	feat(engine): execute excel autofilters feat(engine): execute excel autofilters Source: llm_adapter@2026-05-23 Confidence: high	—
Feature	Medium	feat(engine): support precision as displayed feat(engine): support precision as displayed Source: llm_adapter@2026-05-23 Confidence: high	—
Feature	Medium	feat(workbook): verify immutable plan refs feat(workbook): verify immutable plan refs Source: llm_adapter@2026-05-23 Confidence: high	—
Feature	Medium	feat(engine): preserve excel conditional format artifacts feat(engine): preserve excel conditional format artifacts Source: llm_adapter@2026-05-23 Confidence: high	—
Feature	Medium	feat(workbook): validate selector contracts feat(workbook): validate selector contracts Source: llm_adapter@2026-05-23 Confidence: high	—
Feature	Medium	feat(engine): rewrite conditional format artifacts feat(engine): rewrite conditional format artifacts Source: llm_adapter@2026-05-23 Confidence: high	—
Feature	Medium	feat(workbook): attach readback proof feat(workbook): attach readback proof Source: llm_adapter@2026-05-23 Confidence: high	—
Performance	Medium	perf(headless): skip empty structural insert planning perf(headless): skip empty structural insert planning Source: llm_adapter@2026-05-23 Confidence: low	—
Performance	Medium	perf(headless): append fresh formula family runs perf(headless): append fresh formula family runs Source: llm_adapter@2026-05-23 Confidence: low	—
Bugfix	Medium	ci(runtime): fix WorkPaper external smoke contract ci(runtime): fix WorkPaper external smoke contract Source: llm_adapter@2026-05-23 Confidence: low	—
Refactor	Medium	refactor(core): split structured reference resolver refactor(core): split structured reference resolver Source: llm_adapter@2026-05-23 Confidence: low	—
Other	Medium	chore(release): runtime packages v0.56.0 chore(release): runtime packages v0.56.0 Source: llm_adapter@2026-05-23 Confidence: low	—

Full changelog

Libraries v0.57.0

Release type: minor
Previous libraries tag: libraries-v0.55.0
Manual override: no

Features

feat(formula): preserve native structured references (9e417452)
feat(workbook): avoid mutating model configs (5c42661b)
feat(workbook): require own action metadata (be1bfc42)
feat(workbook): freeze planned action handoffs (c3ac870f)
feat(engine): execute excel autofilters (c4994591)
feat(engine): support precision as displayed (308415f0)
feat(workbook): verify immutable plan refs (55859f20)
feat(engine): preserve excel conditional format artifacts (492ebfd0)
feat(workbook): validate selector contracts (2c15f1d2)
feat(engine): rewrite conditional format artifacts (fae790a0)
feat(workbook): attach readback proof (87638938)

Fixes

perf(headless): skip empty structural insert planning (ed08fc47)
perf(headless): append fresh formula family runs (e2569f4c)

Internal runtime changes

refactor(core): split structured reference resolver (f8e83d75)
ci(runtime): fix WorkPaper external smoke contract (3da277b8)
chore(release): runtime packages v0.56.0 (33e7c2b5)

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