Plan Preview

Q: What is a Claude Code skill and how does the Plan Preview 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. Plan Preview is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the General category. Learn more at https://claudskills.com/learn/what-is-skill-md/.

Category: General · Sub-category: ai-tooling · Last updated: 2026-07-31

ai:agent type:review

Plan Mode の `<proposed_plan>` を出す直前に、計画の段階・依存関係・検証観点を一時HTMLで視覚確認したい時に使う agent-internal skill。Use this agent-internal skill to create a temporary HTML preview for a plan just before presenting `<proposed_plan>`. plugin配布だけで発火し、ユーザーにCLI実行を求めず、agentが `plan-preview` CLIでセッション限定URLを作り、本文に自然に差し込む。Triggers: planをグラフィカルに見たい, planを図で確認したい, この計画をHTMLでプレビューして, 計画をHTMLで確認したい, graphical plan review, proposed_planをプレビューして, 計画URLを入れて, preview this plan as HTML, show this plan visually, graphical plan preview, add a plan preview URL, preview the proposed plan。使用しない場面: 通常の最終HTML生成、レビュー可能な設計資料作成、コメント取り込み、恒久成果物の公開、外部アップロードが必要な図式化。Do not use for: final HTML artifacts, reviewable design docs, comment ingestion, permanent publication, or external-upload diagrams.

Security AStatic scan found no risk patternsHow grading works ›

What this skill does

Plan Preview is a community-contributed Claude Code skill in the ai-tooling sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/plan-preview/ and loads when your prompt matches the skill's trigger.

Who uses this skill

The Plan Preview Claude Code skill is built for Claude Code users and developers across all disciplines looking for general-purpose AI assistance. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 191,000+ 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/plan-preview
curl -L https://claudskills.com/skills/plan-preview/SKILL.md \
  -o ~/.claude/skills/plan-preview/SKILL.md

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

Skills live at ~/.claude/skills/plan-preview/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\plan-preview\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 Plan Preview Claude Code skill?

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

What does the Plan Preview 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 Plan Preview skill?

Use Plan Preview when your Claude Code task falls under the General category — specifically in the ai tooling 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 Plan Preview" or describe the task and let Claude pick). Browse related skills at /category/general/.

What is a Claude Code skill and how does the Plan Preview 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. Plan Preview is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the General category. Learn more at /learn/what-is-a-claude-skill/.

Attribution & license

Source: https://github.com/u-ichi/reviewable-html-workbench/blob/HEAD/skills/plan-preview/SKILL.md
License: MIT
Author: u-ichi

Cite this skill

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

APA

u-ichi. (2026). Plan Preview [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/plan-preview/

BibTeX

@misc{plan-preview-2026,
  author    = {u-ichi},
  title     = {Plan Preview [Claude Code skill]},
  year      = {2026},
  publisher = {ClaudSkills},
  url       = {https://claudskills.com/skills/plan-preview/}
}

Embed this skill

Promote, attribute, or link this skill from your own README, blog post, or documentation. All three snippets are free to use — no sign-up, no API key. More distribution surfaces →

Badge

[![ClaudSkills](https://claudskills.com/badge/plan-preview.svg)](https://claudskills.com/skills/plan-preview/?utm_source=badge&utm_medium=readme&utm_campaign=skill_badge)

Security scan

Grade A · scanned 2026-08-26 — free static scan against the OWASP Agentic Skills Top 10.

The scan flagged 1 of 10 categories (network), including lower-severity patterns. Patterns shown inside code fences are weighted as examples rather than instructions — read the grading methodology for what this does and does not guarantee.

✓ Prompt injection
✓ Data exfiltration
✓ Supply chain
✓ Reverse shell
✓ Credentials
✓ Execution
✓ Filesystem
✓ Persistence
✓ Obfuscation
⚠ Network

Show this grade on your repo (click to copy):

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

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Browse all General skills → Top 100 skills

Part of ClaudSkills — the open registry for Claude Skills & Claude Code Skills. · What's New · Install guide · About · llms.txt

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