ClaudSkills / Engineering / code-quality

Pre Refactor Analyze

Q: What is a Claude Code skill and how does the Pre Refactor Analyze skill fit in?

A Claude Code skill is a SKILL.md file that lives under ~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. Pre Refactor Analyze is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Engineering category. Learn more at https://claudskills.com/learn/what-is-skill-md/.

Category: Engineering · Sub-category: code-quality · Last updated: 2026-06-13

type:audit

迁移或大规模重构前，按四层递进的静态+语义分析产出可机器消费的 JSON 与简短摘要（BLIR → 业务推理 → v1/v2 语义差分 → 模式/反模式）。适用于框架升级、模块拆分、遗留改造、分支对比、Breaking change 审计、以及需要论证业务等价而不仅是文本 diff 的场景。 Triggers：迁移前分析、重构预分析、语义 diff、BLIR、legacy refactor、migration audit、behavior parity、v1 vs v2、迁移评审、breaking change。

From the source SKILL.md

定位：分析模式默认只读；除非用户明确要求进入实现，不修改业务代码。

What this skill does

Pre Refactor Analyze is a community-contributed Claude Code skill in the code-quality sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/pre-refactor-analyze/ and loads when your prompt matches the skill's trigger.

Who uses this skill

The Pre Refactor Analyze Claude Code skill is built for software engineers, backend developers, full-stack teams, and technical leads building and maintaining production systems. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 116,000+ SKILL.md files for Anthropic's Claude Code agent and the wider Claude ecosystem (Claude API, Claude Agent SDK).

How to install

Free

Manual install (2 steps)

mkdir -p ~/.claude/skills/pre-refactor-analyze
curl -L https://claudskills.com/skills/pre-refactor-analyze/SKILL.md \
  -o ~/.claude/skills/pre-refactor-analyze/SKILL.md

Or just download SKILL.md directly and drop it into ~/.claude/skills/pre-refactor-analyze/. Claude Code auto-discovers it on next session.

Skills live at ~/.claude/skills/pre-refactor-analyze/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\pre-refactor-analyze\SKILL.md on Windows. See the full install guide for step-by-step instructions.

📱 Install from your phone or desktop Telegram

Open @claudskills_bot on Telegram, tap Open Desktop App, and the desktop app installs this skill for you. Or share the bot link with a colleague — they get the same one-tap install. Learn more →

Pro

One-click install via the desktop app

The ClaudSkills desktop app installs any skill directly into ~/.claude/skills/ with one click — no terminal required. Pro starts at $9/mo or $149 lifetime.

Pro

For the full experience including quality scoring and one-click install features for each skill — upgrade to Pro.

See pricing → Download desktop app

Frequently asked questions

How do I install the Pre Refactor Analyze Claude Code skill?

Install via the ClaudSkills desktop app (one click) or copy SKILL.md from the source repository to ~/.claude/skills/pre-refactor-analyze/SKILL.md and restart Claude Code. Both flows are detailed at claudskills.com/install/.

What does the Pre Refactor Analyze skill do?

Is this skill free to install?

Yes. ClaudSkills is an open registry — every skill keeps its source repository's license, and manual install via copy is free. ClaudSkills Pro ($9/mo, $79/yr, or $149 one-time) adds one-click install via the desktop app and a multi-signal Quality Score.

When should I use the Pre Refactor Analyze skill?

Use Pre Refactor Analyze when your Claude Code task falls under the Engineering category — specifically in the code quality area. Claude Code auto-discovers installed skills and invokes the right one based on the task description, so you can also ask Claude directly (e.g. "use Pre Refactor Analyze" or describe the task and let Claude pick). Browse related skills at /category/engineering/.

What is a Claude Code skill and how does the Pre Refactor Analyze skill fit in?

A Claude Code skill is a SKILL.md file that lives under ~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. Pre Refactor Analyze is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Engineering category. Learn more at /learn/what-is-a-claude-skill/.

Attribution & license

Cite this skill

If you reference this skill in a blog post, paper, or documentation, you can cite it as:

APA

DylanLIiii. (2026). Pre Refactor Analyze [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/pre-refactor-analyze/

BibTeX

@misc{pre-refactor-analyze-2026,
  author    = {DylanLIiii},
  title     = {Pre Refactor Analyze [Claude Code skill]},
  year      = {2026},
  publisher = {ClaudSkills},
  url       = {https://claudskills.com/skills/pre-refactor-analyze/}
}

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Badge

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