reference-preserving-edit

A careful editing workflow for existing HWPX documents, the format used by Hancom Word. It keeps a working copy, inspects the document structure, makes small changes, and checks the result.

In plain words
What is it for?
Use it to update text, formatting, or table cells in an existing HWPX while preserving its layout. It also helps inspect package contents when the document structure is difficult to judge visually.
Why use it?
Editing complex documents can accidentally shift tables, sections, or other layout details. This workflow reduces those changes by favoring targeted replacements and validation.

Skill for Claude CodeCodex

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.

agentmods
npx agentmods add skills/airmang/python-hwpx-automation/reference-preserving-edit
Any agent
npx skills add airmang/python-hwpx-automation --skill reference-preserving-edit
Clone the repo
git clone --depth 1 https://github.com/airmang/python-hwpx-automation

Made for: Claude Code, Codex.

Per session 46 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 436 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00046 $0.00436
Opus 5 $0.00023 $0.00218
Sonnet 5 $0.00009 $0.00087
Haiku 4.5 $0.00005 $0.00044

Measured 3d ago against content hash 418448953a19, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

reference-preserving-edit 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 3d 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.

examples/skills/reference-preserving-edit/SKILL.md · 41 lines

What it actually says

Reference-Preserving Edit

Use this workflow when the document already exists and layout stability matters more than editing speed.

Tool Order

  1. Create a working copy with copy_document.
  2. Read the current structure with get_document_outline, get_paragraphs_text, get_table_text, or hwpx_extract_json.
  3. In advanced mode, inspect sensitive package parts with package_parts, package_get_xml, package_get_text, object_find_by_tag, or object_find_by_attr.
  4. Validate the baseline with validate_structure if the source document is externally produced or suspicious.
  5. Apply the smallest possible edit:
    • search_and_replace or batch_replace for anchored text updates
    • format_text for localized styling
    • set_table_cell_text for fixed cells
    • paragraph insertion/deletion only when structure must change
  6. Re-read the touched areas and rerun validate_structure.

Minimize Layout Drift

  • Prefer replacement over insertion.
  • Avoid changing table geometry unless required.
  • Limit edits to the smallest paragraph or table region possible.
  • Use package inspection when memo anchors, section XML, or dense table layouts make visual assumptions risky.

When To Inspect Package Parts

  • The source was generated by another system.
  • The visible text is not enough to identify the true anchor.
  • You need to confirm which section or package part contains the target content.

Honest Limitations

  • apply_document_commands supports a typed set/add/remove/move/copy union, not arbitrary package mutation; use a domain-specific tool when its evidence or semantics are required.
  • There is no public layout-drift report or structure-diff tool on the active MCP surface.
  • Saving is implicit: mutating tools persist immediately, so always start from copy_document when the original must stay untouched.
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. 3d ago First seen · 41 lines · 46 tokens per session scan A 418448953a19

Subscribe to this mod's changes

reference-preserving-edit is a skill published in the GitHub repository airmang/python-hwpx-automation (67 stars, last pushed 9d ago), licensed Apache-2.0. It adds 46 tokens to every session and 436 once invoked, about $0.0002 per session on Opus 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.

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