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Behavior-Structure Separation 振る舞い変更と構造変更の分離・外部挙動維持

Category: Engineering  ·  Sub-category: code-quality  ·  Last updated:
type:audit
リファクタリング(構造変更)と機能変更(behavior change)が同一 diff に混在していないかを識別し、structural change に対する external behavior preservation の証拠(テスト・型・静的解析)が揃っているかを diff-time で確認する。証拠不足のときは Characterization Test 追加を促すか question とする。DTO/公開 API の破壊的変更検出は api-compatibility、完了主張の反証や抽出リファクタの性能特性退行は refactor-claim-audit、新知識の命名・責務・境界への反映は knowledge-to-code-alignment、投機的抽象化・スコープ逸脱は altitude-generalization / fix-scope-integrity へ委譲する
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About this skill (catalog notes)

Behavior-Structure Separation 振る舞い変更と構造変更の分離・外部挙動維持 includes at least one code block. The SKILL.md is on the shorter side at about 586 words.

Source
river-review.the3396.com
License
MIT
Original author
s977043
Indexed lastmod
Catalog position
Engineering · code-quality
Indexed related skills
10

How Behavior-Structure Separation 振る舞い変更と構造変更の分離・外部挙動維持 fits the catalog

Behavior-Structure Separation 振る舞い変更と構造変更の分離・外部挙動維持 sits in the Engineering category under the code-quality sub-topic in the ClaudSkills catalog. There are 10 related skills indexed alongside it; comparing a few before installing usually reveals which fits your workflow best.

These notes are auto-generated from features detected in the SKILL.md file and from this catalog's structure — they aren't part of the source repository.

What this skill does

Behavior-Structure Separation 振る舞い変更と構造変更の分離・外部挙動維持 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/behavior-structure-separation/ and loads when your prompt matches the skill's trigger.

Who uses this skill

The Behavior-Structure Separation 振る舞い変更と構造変更の分離・外部挙動維持 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 174,000+ 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/behavior-structure-separation
curl -L https://claudskills.com/skills/behavior-structure-separation/SKILL.md \
  -o ~/.claude/skills/behavior-structure-separation/SKILL.md

Or just download SKILL.md directly and drop it into ~/.claude/skills/behavior-structure-separation/. Claude Code auto-discovers it on next session.

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

Telegram

📱 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.

Frequently asked questions

How do I install the Behavior-Structure Separation 振る舞い変更と構造変更の分離・外部挙動維持 Claude Code skill?
Install via the ClaudSkills desktop app (one click) or copy SKILL.md from the source repository to ~/.claude/skills/behavior-structure-separation/SKILL.md and restart Claude Code. Both flows are detailed at claudskills.com/install/.
What does the Behavior-Structure Separation 振る舞い変更と構造変更の分離・外部挙動維持 skill do?
リファクタリング(構造変更)と機能変更(behavior change)が同一 diff に混在していないかを識別し、structural change に対する external behavior preservation の証拠(テスト・型・静的解析)が揃っているかを diff-time で確認する。証拠不足のときは Characterization Test 追加を促すか question とする。DTO/公開 API の破壊的変更検出は api-compatibility、完了主張の反証や抽出リファクタの性能特性退行は refactor-claim-audit、新知識の命名・責務・境界への反映は knowledge-to-code-alignment、投機的抽象化・スコープ逸脱は altitude-generalization / fix-scope-integrity へ委譲する
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 Behavior-Structure Separation 振る舞い変更と構造変更の分離・外部挙動維持 skill?
Use Behavior-Structure Separation 振る舞い変更と構造変更の分離・外部挙動維持 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 Behavior-Structure Separation 振る舞い変更と構造変更の分離・外部挙動維持" or describe the task and let Claude pick). Browse related skills at /category/engineering/.
What is a Claude Code skill and how does the Behavior-Structure Separation 振る舞い変更と構造変更の分離・外部挙動維持 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. Behavior-Structure Separation 振る舞い変更と構造変更の分離・外部挙動維持 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
s977043. (2026). Behavior-Structure Separation 振る舞い変更と構造変更の分離・外部挙動維持 [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/behavior-structure-separation/
BibTeX
@misc{behavior-structure-separation-2026,
  author    = {s977043},
  title     = {Behavior-Structure Separation 振る舞い変更と構造変更の分離・外部挙動維持 [Claude Code skill]},
  year      = {2026},
  publisher = {ClaudSkills},
  url       = {https://claudskills.com/skills/behavior-structure-separation/}
}

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