univer-node-backend

univer-node-backend is a skill for Codex from dream-num/univer-sdk-skills. It costs 154 tokens per session (2,085 once invoked), scanned A, original, Apache-2.0.

A guide for using Univer spreadsheet features in Node.js without a browser. Node.js is a JavaScript runtime often used for servers and automated scripts.

In plain words
What is it for?
Use it for headless spreadsheet processing, batch report creation, server-side formula calculations, and automated workbook manipulation.
Why use it?
It enables spreadsheet calculations and workbook changes in server-side jobs rather than requiring an interactive web page.

Skill for Codex

Written for Codex: agents/openai.yaml present.

Good fit Use it for headless spreadsheet processing, batch report creation, server-side formula calculations, and automated workbook manipulation.

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Install with agentmods
npx agentmods add skills/dream-num/univer-sdk-skills/univer-node-backend
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add dream-num/univer-sdk-skills --skill univer-node-backend
Clone the repo
git clone --depth 1 https://github.com/dream-num/univer-sdk-skills

Made for: Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for univer-node-backend

README.md
[![agentmods](https://agentmods.dev/badge/skills/dream-num/univer-sdk-skills/univer-node-backend/github.svg)](https://agentmods.dev/skills/dream-num/univer-sdk-skills/univer-node-backend)
Your own site
<a href="https://agentmods.dev/skills/dream-num/univer-sdk-skills/univer-node-backend"><img src="https://agentmods.dev/badge/skills/dream-num/univer-sdk-skills/univer-node-backend/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for univer-node-backend

Your own site · 80×15
<a href="https://agentmods.dev/skills/dream-num/univer-sdk-skills/univer-node-backend"><img src="https://agentmods.dev/badge/skills/dream-num/univer-sdk-skills/univer-node-backend.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 154 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,085 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00154 $0.02085
Opus 5 $0.00077 $0.01043
Sonnet 5 $0.00031 $0.00417
Haiku 4.5 $0.00015 $0.00209

Measured 11d ago against content hash 9de66c5b19dc, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

univer-node-backend scanned grade A with 1 finding against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 11d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Runs shell commandslowCapability

Expected in a hook, worth knowing in a rule or an instructions file.

description: Use Univer (spreadsheet engine) in Node.js backend environments for headless data processing, batch report generation, server-side formula calculation, and automated workbook manipulation. Use when the user
skills/univer-node-backend/SKILL.md · 222 lines

How it starts

The opening of the file, as written. The whole thing — 222 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Univer Node.js Backend

Guide for running Univer in Node.js environments without a browser. Use this for headless spreadsheet processing, automated report generation, server-side formula calculation, and batch data manipulation.

Compatibility: This skill is written for Univer v0.21.x / Univer Pro v0.20.x. Node.js support is isomorphic with browser support per the Univer architecture.

Prerequisites: Familiarity with the univer-integrate skill (base plugin architecture, Facade API, plugin registration order) is assumed. This skill only covers Node.js-specific differences.

Quick Start

1. Install dependencies

npm install @univerjs/core @univerjs/engine-formula @univerjs/sheets @univerjs/sheets-formula @univerjs/rpc-node

For Pro features in Node.js:

npm install @univerjs-pro/license @univerjs-pro/engine-formula @univerjs-pro/sheets-pivot @univerjs-pro/collaboration-client-node

2. Create Univer instance on Node.js

import { LocaleType, Univer } from '@univerjs/core';
import { FUniver } from '@univerjs/core/facade';
import { UniverFormulaEnginePlugin } from '@univerjs/engine-formula';
import { UniverSheetsPlugin } from '@univerjs/sheets';
import { UniverSheetsFormulaPlugin } from '@univerjs/sheets-formula';
import { UniverSheetsFilterPlugin } from '@univerjs/sheets-filter';

// Facade side-effect imports for Node.js
import '@univerjs/sheets/facade';
import '@univerjs/engine-formula/facade';
import '@univerjs/sheets-formula/facade';
import '@univerjs/sheets-filter/facade';
import '@univerjs/sheets-numfmt/facade';

const univer = new Univer({
  locale: LocaleType.ZH_CN,
});

univer.registerPlugin(UniverFormulaEnginePlugin);
univer.registerPlugin(UniverSheetsPlugin);
univer.registerPlugin(UniverSheetsFormulaPlugin);
univer.registerPlugin(UniverSheetsFilterPlugin);

const univerAPI = FUniver.newAPI(univer);
const workbook = univerAPI.createWorkbook({});
const sheet = workbook.getActiveSheet();

sheet.getRange('A1').setValue({ v: 123 });
sheet.getRange('B1').setValue({ f: '=SUM(A1) * 6' });

console.log(workbook.save());

Read the full file on GitHub · 222 lines

Files

What ships with it

4 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 11d ago First seen · 222 lines · 154 tokens per session scan A 9de66c5b19dc

Subscribe to this mod's changes

univer-node-backend is a skill published in the GitHub repository dream-num/univer-sdk-skills (9 stars, last pushed 4mo ago), licensed Apache-2.0. It adds 154 tokens to every session and 2,085 once invoked, about $0.0008 per session on Opus 5. A static security scan graded it A with 1 finding (runs shell commands). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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