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docx

docx is a skill for Codex from PracticalSwan/agent-skills. It costs 48 tokens per session (2,122 once invoked), scanned A, original, MIT.

A set of instructions for creating, reading, editing, and repairing Microsoft Word .docx files. It covers document formatting, tracked changes, comments, images, and safe file conversion.

In plain words
What is it for?
Creating new documents, extracting text, editing existing documents, updating images, and making XML-level repairs.
Why use it?
It gives an agent a defined way to handle Word files without damaging their internal structure or layout.

Skill for Codex

Written for Codex: reads $CODEX_HOME. Also seen: mentions Claude Code; mentions Codex.

Needs its repository: it reads a path above its own folder, which exists only inside the repository. The line is (cd unpacked && rm -f ../out.docx && zip -Xr ../out.docx .).

not rated 21repo changed 1mo ago A scan SkillSpector: warn 48 tokens original MIT

Good fit Creating new documents, extracting text, editing existing documents, updating images, and making XML-level repairs.

Compare 6 skills from other repositories ↓
View source ↗ PracticalSwan/agent-skills
Install

Getting it into your agent

It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.

Clone the repo
git clone --depth 1 https://github.com/PracticalSwan/agent-skills
agentmods
npx agentmods add skills/practicalswan/agent-skills/docx

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 docx

README.md
[![agentmods](https://agentmods.dev/badge/skills/practicalswan/agent-skills/docx/github.svg)](https://agentmods.dev/skills/practicalswan/agent-skills/docx)
Your own site
<a href="https://agentmods.dev/skills/practicalswan/agent-skills/docx"><img src="https://agentmods.dev/badge/skills/practicalswan/agent-skills/docx/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 docx

Your own site · 80×15
<a href="https://agentmods.dev/skills/practicalswan/agent-skills/docx"><img src="https://agentmods.dev/badge/skills/practicalswan/agent-skills/docx.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 48 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,122 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 3 findings, up to high

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • high Tool Misuse · line 58
    Tool parameters are crafted to achieve unintended or unsafe behavior. Parameter abuse can bypass intended safety checks (e.g. shell=True, --force, dangerous glob patterns).
    Fix: Validate all tool parameters against an allowlist. Reject dangerous parameter values (shell=True, --force, -rf /) and use safe defaults.
  • high Tool Misuse · line 58
    Tool calls are chained to bypass individual safety checks or escalate capabilities beyond what any single tool call would allow.
    Fix: Limit tool chaining depth and validate the output of each tool before passing it to the next. Require explicit user approval for multi-step chains.
  • high Prompt Injection · line 95
    Hidden instructions were detected in comments or invisible text. These could contain malicious directives. Manual review is recommended.
    Fix: Audit all comments and invisible characters. Remove any instructions that direct the agent to perform unauthorized actions. Use plain, reviewable content.
How audits are shown
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 $0.00048 $0.02122
Opus 5.5 $0.00019 $0.00849
Sonnet 5.5 $0.00010 $0.00424
Haiku 4.5 $0.00005 $0.00212

Measured 1mo ago against content hash 90c9ef686587, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

docx scanned grade A with 0 findings 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 1mo ago.

The scan reads SKILL.md. This mod also ships 15 executable files (scripts/__init__.py, scripts/accept_changes.py, scripts/comment.py, …), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

docx/SKILL.md · 144 lines

How it starts

The opening of the file, as written. The whole thing — 144 lines — stays where its author put it; the contents beside it link to each section on GitHub.

DOCX creation, editing, and analysis

A .docx is a ZIP archive of XML files. Choose your approach by task:

Task Approach
Create a new document Write a docx (npm) script — see gotchas below
Edit an existing document unzip → edit word/document.xml → zip (docx-js cannot open existing files)
Read content pandoc -t markdown file.docx

Script paths below are relative to this skill's directory.

Creating with docx-js — gotchas

docx is preinstalled — do not run npm install first; write the script and require('docx') directly. Only if that require fails: npm install docx. The model knows the API; these are the footguns:

  • Page size defaults to A4. For US Letter set page: { size: { width: 12240, height: 15840 } } (DXA; 1440 = 1″).
  • Landscape: pass portrait dimensions and orientation: PageOrientation.LANDSCAPE — docx-js swaps width/height internally.
  • Tables need dual widths: set columnWidths on the table AND width on every cell, both in WidthType.DXA (PERCENTAGE breaks in Google Docs). Column widths must sum to the table width.
  • Table shading: use ShadingType.CLEAR, never SOLID (renders black).
  • Lists: never insert • literally; use a numbering config with LevelFormat.BULLET.
  • ImageRun requires type: ("png", "jpg", …).
  • PageBreak must be inside a Paragraph.
  • Never use \n — use separate Paragraph elements.
  • TOC: headings must use built-in HeadingLevel.*; custom heading styles need outlineLevel set or they won't appear.
  • Don't use a table as a horizontal rule — use a paragraph bottom border instead.
  • Dot-leader / right-aligned-on-same-line: use PositionalTab (alignment: PositionalTabAlignment.RIGHT, leader: PositionalTabLeader.DOT) inside a TextRun, not literal . or space padding.

Verify the output

After writing a .docx, render it and look at it:

python scripts/office/soffice.py --headless --convert-to pdf output.docx
pdftoppm -jpeg -r 100 output.pdf page
ls page-*.jpg   # then Read the images

Read the full file on GitHub · 144 lines

Files

What ships with it

60 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. 1mo ago Changed · +5 lines 90c9ef686587
  2. 1mo ago Changed 18ff9e3a67d7
  3. 1mo ago Changed 05e134d96c3c
  4. 1mo ago First seen · 139 lines · 48 tokens per session scan A 8b81c6402e1f

Subscribe to this mod's changes

docx is a skill published in the GitHub repository PracticalSwan/agent-skills (21 stars, last pushed 2d ago), licensed MIT. It adds 48 tokens to every session and 2,122 once invoked, about $0.0002 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

Documentsdocxformattingofficeword
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