Skills calc
📦

calc

v1.0.0 Content revision r1 Medium Risk ⚙️ External commands🌐 Network access

Create LibreOffice Calc Spreadsheets

Spreadsheet workflows often need reliable file conversion and repeatable data setup. This skill guides Claude, Codex, and Claude Code through LibreOffice Calc creation, conversion, formulas, and automation.

Supports: Claude Codex Code(CC)
📊 71 Adequate

Install with my Agent

Copy this request to your Agent. It includes the canonical Skill page and manifest.

Agent request
Review the Skillstore skill "calc" from https://skillstore.io/skills/sickn33-calc.md and its manifest at https://skillstore.io/api/skills/sickn33-calc/manifest. Verify the artifact. You may proceed after verification, subject to the environment's own policy.

Your Agent should still show its plan and request any confirmation required by the security policy.

Agent-readable resources

Use these links when an AI agent, crawler, or script needs clean context instead of reading the full page.

Markdown detail GET /skills/sickn33-calc.md Signed manifest GET /api/skills/sickn33-calc/manifest Signed lockfile GET /api/skills/sickn33-calc/lockfile

Test it

Using "calc". Create an ODS budget workbook for a small team.

Expected outcome:

A workbook plan with sheets for income, expenses, and totals, plus formatting guidance and formula placement.

Using "calc". Convert a set of ODS reports to XLSX and PDF.

Expected outcome:

A step-by-step conversion plan that checks backups, uses LibreOffice headless mode, and verifies exported files.

Using "calc". Automate formulas for a sales report.

Expected outcome:

  • A proposed sheet layout with calculated totals.
  • Recommended validation rules for key inputs.
  • A summary of formatting and review steps.

Security Audit

Medium Risk
v6 • 7/9/2026 Open versioned report

Most static findings are Markdown code fences, documentation links, or local LibreOffice examples rather than hidden execution. The remaining risks are the troubleshooting commands that kill LibreOffice processes, open a localhost UNO socket, and reference one plain HTTP documentation URL.

1
Files scanned
202
Lines analyzed
2
Review items
0
False positives ignored

Confirmed security concerns (1)

Medium
SKILL.md:185
Network reconnaissance
soffice --headless --accept="socket,host=localhost,port=8100;urp;"
The command starts a LibreOffice UNO socket listener on localhost port 8100. It is not reconnaissance, but it creates a local control surface without visible authentication.
Capability review items (2)

These are real local capabilities that may be expected for this skill, so they require review but are not counted as confirmed malicious behavior.

Medium
SKILL.md:183-186
Ruby/shell backtick execution
```bash
The troubleshooting block includes commands that kill all soffice.bin processes and start a local UNO socket listener. These are user-visible examples, but they can disrupt work or expose local automation if run without confirmation.
Low
SKILL.md:192
Hardcoded URL
- [ezodf Documentation](http://ezodf.rst2.org/)
This is a plain HTTP external documentation link. If opened, the page content could be modified in transit, although the skill does not fetch it automatically.

Risk Factors

⚙️ External commands (15)
SKILL.md:61-63 SKILL.md:63-66 SKILL.md:66-85 SKILL.md:85-88 SKILL.md:88-96 SKILL.md:96-100 SKILL.md:100-117 SKILL.md:117-120 SKILL.md:120-143 SKILL.md:143-155 SKILL.md:155-159 SKILL.md:159-163 SKILL.md:163-167 SKILL.md:167-183 SKILL.md:183-186
🌐 Network access (3)
SKILL.md:190 SKILL.md:191 SKILL.md:192

Detected Patterns

Network reconnaissance
Audited by: codex View Audit History →
Share & cite this report

Share the versioned assessment report, neutral badge, embed card, and citations. Skillstore reports evidence without deciding whether this Skill is safe.

Open versioned report
Security Assessment

Copy report link

https://skillstore.io/skills/sickn33-calc/audits/6?utm_source=security_passport&utm_medium=share&utm_campaign=versioned_report

Markdown badge

[![Skillstore security assessment](https://skillstore.io/badges/skills/sickn33-calc/security.svg)](https://skillstore.io/skills/sickn33-calc?utm_source=security_passport_badge)

HTML badge

<a href="https://skillstore.io/skills/sickn33-calc?utm_source=security_passport_badge"><img src="https://skillstore.io/badges/skills/sickn33-calc/security.svg" alt="Skillstore security assessment" loading="lazy"></a>

Embed card

<iframe src="https://skillstore.io/embed/skills/sickn33-calc.html" title="Skillstore Security Assessment" sandbox="allow-popups allow-popups-to-escape-sandbox" loading="lazy" referrerpolicy="no-referrer" width="420" height="180"></iframe>
Academic citations (APA · BibTeX · CFF)

APA citation

sickn33. (2026). calc security audit report (audit version 6) [Author version 1.0.0]. Skillstore. https://skillstore.io/skills/sickn33-calc/audits/6

BibTeX citation

@techreport{sickn33-sickn33-calc-2026, author = {sickn33}, title = {calc security audit report (audit version 6)}, institution = {Skillstore}, year = {2026}, number = {6}, url = {https://skillstore.io/skills/sickn33-calc/audits/6}, note = {Author version 1.0.0} }

CITATION.cff

cff-version: 1.2.0 message: "If you use this Skill, cite its author and this versioned security audit report." title: "calc security audit report (audit version 6)" version: "1.0.0" type: report authors: - name: "sickn33" date-released: "2026-07-09" url: "https://skillstore.io/skills/sickn33-calc/audits/6" identifiers: - type: other value: "skillstore:sickn33-calc:audit:6" description: "Skillstore immutable audit report identifier"

Skillstore Score

Why this score Evidence Confidence: High
55
Architecture
100
Maintainability
85
Content
69
Community
83
Spec Compliance

What You Can Build

Build Department Reports

Create recurring ODS reports with formulas, totals, formatting, and export steps for sharing.

Convert Client Files

Plan safe conversion between ODS, XLSX, CSV, and PDF formats while preserving source files.

Automate Spreadsheet Setup

Use UNO or ezodf examples to design repeatable spreadsheet creation and formula workflows.

Try These Prompts

Create a Basic Spreadsheet 
Create an ODS spreadsheet plan for a monthly budget. Include income, expenses, totals, and clear formatting.
Convert Spreadsheet Formats 
Convert an ODS file to XLSX and PDF. Explain the LibreOffice command steps and backup checks.
Automate Formulas and Validation 
Design a Calc workbook for sales tracking. Include formulas, input validation, conditional formatting, and a summary sheet.
Build a Batch Workflow 
Plan a batch workflow that converts spreadsheets, validates results, logs failures, and avoids overwriting source files.

Best Practices

  • Review shell commands before running them on real files.
  • Keep source spreadsheets and backups before conversion.
  • Use sample files to test formulas and exports first.

Avoid

  • Running commands against broad file patterns without checking the directory.
  • Opening a local automation socket longer than needed.
  • Assuming format conversion preserves every formula or chart exactly.

Frequently Asked Questions

Does this skill create spreadsheets directly?
It provides guidance and examples for creating spreadsheets with LibreOffice Calc, UNO, and ODS libraries.
Does it require LibreOffice?
LibreOffice is required for soffice commands and UNO automation. Python library examples require separate package installation.
Can it convert XLSX and CSV?
Yes. It describes conversions among ODS, XLSX, XLS, CSV, PDF, HTML, and related formats.
Does it run commands automatically?
No. The skill contains command examples that an agent or user must review before execution.
Is it safe for sensitive spreadsheets?
Use local files, avoid unnecessary network access, and review commands before processing sensitive data.
Can it build complex reports?
It can guide formulas, summaries, validation, formatting, and dashboards, but advanced macros need extra review.

Developer Details

Author

sickn33

License

MIT

Author version

v1.0.0

Skillstore revision

r1

Repository

https://github.com/sickn33/antigravity-awesome-skills/tree/main/skills/libreoffice/calc

Ref

26421118b848d9f1efc0aa169d8a7a9e7e0a877e

Maintenance freshness

7/18/2026

Usage

16 downloads · 113 views

File structure

📄 SKILL.md

More from sickn33

View all

Related Skills

View all