hwpx-editing-skill: Instructions file for Codex

AGENTS.md

hwpx-editing-skill AGENTS.md is an instructions file for Codex, OpenCode from kangdacool/hwpx-editing-skill. It costs 507 tokens per session, scanned A, original, MIT.

Instructions for editing HWPX files, the document format used by Hancom Hangul, a Korean word processor. They cover reading, changing, and safely repackaging these documents.

In plain words
What is it for?
Use it to edit text, tables, images, equations, notes, page layout, or tables of contents in HWPX and Korean Hangul documents.
Why use it?
HWPX files are packaged XML documents, so manual edits or repackaging can damage their structure or layout. The instructions provide the required workflow and verification scripts.

Instructions file for CodexOpenCode

Written for Codex and OpenCode: the file is AGENTS.md. Also seen: mentions AGENTS.md.

This is kangdacool/hwpx-editing-skill's own configuration. It tells Codex and OpenCode how to work on hwpx-editing-skill itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything hwpx-editing-skill configures →

Reuse

Borrowing it

Nothing to install: this file belongs to kangdacool/hwpx-editing-skill. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/kangdacool/hwpx-editing-skill/main/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/kangdacool/hwpx-editing-skill

Made for: Codex, OpenCode.

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 hwpx-editing-skill AGENTS.md

README.md
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Your own site
<a href="https://agentmods.dev/instructions/kangdacool/hwpx-editing-skill/agents-md"><img src="https://agentmods.dev/badge/instructions/kangdacool/hwpx-editing-skill/agents-md/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 hwpx-editing-skill AGENTS.md

Your own site · 80×15
<a href="https://agentmods.dev/instructions/kangdacool/hwpx-editing-skill/agents-md"><img src="https://agentmods.dev/badge/instructions/kangdacool/hwpx-editing-skill/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 507 This file is loaded in full into every session.
When invoked 507 The same file — it is already loaded in full.
Security scan A 0 findings. 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 $0.00507 $0.00507
Opus 5.5 $0.00203 $0.00203
Sonnet 5.5 $0.00101 $0.00101
Haiku 4.5 $0.00051 $0.00051

Measured 1mo ago against content hash 724bc255c3bb, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

hwpx-editing-skill AGENTS.md 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.

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.

AGENTS.md · 40 lines

What it actually says

AGENTS.md

This repository is an Agent Skill for editing HWPX (한글 / Hangul .hwpx) files. If you are an AI coding agent working in this repo — or the user pointed you here to work on a .hwpx file — use the skill instead of guessing.

When to use it

Any task touching a .hwpx file, a 한글/Hangul document, HWPML, or a Korean government/academic document: reading/extracting text or tables, editing paragraphs, tables, images, equations, footnotes/endnotes, memos; fixing layout (orphaned headings, blank pages, columns); building a table of contents; repackaging the zip.

How to use it

  1. Read the skill: skills/hwpx-editing/SKILL.md. It contains the workflow and points to the detailed guide and scripts.
  2. Read the relevant section of skills/hwpx-editing/references/hwpx-guide.md for the specific operation.
  3. Use the scripts in skills/hwpx-editing/scripts/ — do not hand-roll zip repacking:
    • inspect_hwpx.py FILE.hwpx --breaks — inspect structure and hidden page/column breaks
    • hwpxlib.py — repack_preserve, own, make_uid, strip_linesegarray, verify helpers
    • verify.py EDITED.hwpx --orig ORIG.hwpx — run the §7 build checklist
    • selftest.py — prove the repacker is lossless
  4. Dependency: pip install lxml (Python 3.10+).

The non-negotiable rule

Never re-zip an HWPX with a normal zip writer — 한글 will reject it. Use repack_preserve, which byte-copies unchanged entries and re-deflates only what you changed. Verify every build; then ask the user to round-trip the file in 한글, since LibreOffice cannot render HWPX.

Installing the skill elsewhere

To install this skill into an agent's global skills directory, run ./install.sh <agent> (or see docs/INSTALL_LLM.md). Do not handle the user's credentials; if publishing or auth is needed, ask the user to do it.

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 First seen · 40 lines · 507 tokens per session scan A 724bc255c3bb

Subscribe to this mod's changes

hwpx-editing-skill AGENTS.md is an instructions file published in the GitHub repository kangdacool/hwpx-editing-skill (8 stars, last pushed 15d ago), licensed MIT. It adds 507 tokens to every session, about $0.0020 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 2026-08-31.

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