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Invisible Unicode Injection Scan 不可視 Unicode コード注入検出

Category: Security  ·  Sub-category: appsec-build  ·  Last updated:
差分に追加されたソースコードへ混入した不可視・危険な Unicode 文字（タグ文字・異体字セレクター・ゼロ幅文字・双方向制御/マーク・変則空白）を検出する。GlassWorm 型サプライチェーン攻撃・ASCII smuggling・Trojan Source（CVE-2021-42574）でコードを不可視化する手口を、決定論的な静的解析（列挙した code point 集合に限定）として捕捉し、canary テストで誤検出の再発を防ぐ
Security AStatic scan found no risk patternsHow grading works ›

What this skill does

Invisible Unicode Injection Scan 不可視 Unicode コード注入検出 is a community-contributed Claude Code skill in the appsec-build sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/invisible-unicode-injection/ and loads when your prompt matches the skill's trigger.

Who uses this skill

The Invisible Unicode Injection Scan 不可視 Unicode コード注入検出 Claude Code skill is built for security engineers, penetration testers, DevSecOps practitioners, and development teams hardening codebases and infrastructure. 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/invisible-unicode-injection
curl -L https://claudskills.com/skills/invisible-unicode-injection/SKILL.md \
  -o ~/.claude/skills/invisible-unicode-injection/SKILL.md

Or just download SKILL.md directly and drop it into ~/.claude/skills/invisible-unicode-injection/. Claude Code auto-discovers it on next session.

Skills live at ~/.claude/skills/invisible-unicode-injection/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\invisible-unicode-injection\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.

See pricing → Download desktop app

Frequently asked questions

How do I install the Invisible Unicode Injection Scan 不可視 Unicode コード注入検出 Claude Code skill?
Install via the ClaudSkills desktop app (one click) or copy SKILL.md from the source repository to ~/.claude/skills/invisible-unicode-injection/SKILL.md and restart Claude Code. Both flows are detailed at claudskills.com/install/.
What does the Invisible Unicode Injection Scan 不可視 Unicode コード注入検出 skill do?
差分に追加されたソースコードへ混入した不可視・危険な Unicode 文字（タグ文字・異体字セレクター・ゼロ幅文字・双方向制御/マーク・変則空白）を検出する。GlassWorm 型サプライチェーン攻撃・ASCII smuggling・Trojan Source（CVE-2021-42574）でコードを不可視化する手口を、決定論的な静的解析（列挙した code point 集合に限定）として捕捉し、canary テストで誤検出の再発を防ぐ
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 Invisible Unicode Injection Scan 不可視 Unicode コード注入検出 skill?
Use Invisible Unicode Injection Scan 不可視 Unicode コード注入検出 when your Claude Code task falls under the Security category — specifically in the appsec build 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 Invisible Unicode Injection Scan 不可視 Unicode コード注入検出" or describe the task and let Claude pick). Browse related skills at /category/security/.
What is a Claude Code skill and how does the Invisible Unicode Injection Scan 不可視 Unicode コード注入検出 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. Invisible Unicode Injection Scan 不可視 Unicode コード注入検出 is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Security 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). Invisible Unicode Injection Scan 不可視 Unicode コード注入検出 [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/invisible-unicode-injection/
BibTeX
@misc{invisible-unicode-injection-2026,
  author    = {s977043},
  title     = {Invisible Unicode Injection Scan 不可視 Unicode コード注入検出 [Claude Code skill]},
  year      = {2026},
  publisher = {ClaudSkills},
  url       = {https://claudskills.com/skills/invisible-unicode-injection/}
}

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Security scan

Grade A · scanned 2026-08-02 — free static scan against the OWASP Agentic Skills Top 10.

No risk patterns were found in any of the ten OWASP-aligned categories. How grading works ›

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[![Security: A](https://img.shields.io/badge/Security-A-2e7d32)](https://claudskills.com/skills/invisible-unicode-injection/#security)

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More Security skills

Browse all Security skills in the ClaudSkills registry, or explore these other picks from the same category:

Browse all Security skills → Top 100 skills
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