Agent skill

Preview Site

by dpc in dpc/tau

A skill your agent uses when changing or reviewing Tau's static site under site/ and needing visual verification of layout, spacing, colors, alignment, desktop rendering, mobile rendering, or…

MPL-2.0Auto-check passedFrontend & Design

Install Preview Site

skills CLI
$ npx skills add dpc/tau --skill preview-site -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install dpc/tau preview-site --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/dpc/tau.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.agents/skills/preview-site .claude/skills/preview-site && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
preview-site
GitHub stars
104
Token cost
~308 tokens
SKILL.md length
104 words
Files
1
Skills in repo
15
Repo updated
First seen
Licence
MPL-2.0

At a glance

A skill your agent uses when changing or reviewing Tau's static site under site/ and needing visual verification of layout, spacing, colors, alignment, desktop rendering, mobile rendering, or…

  • Works in 4 steps: Run headless Chromium to capture a… → Read the screenshot image at… → Inspect the rendering and report any… → …
  • Reviewing Taus static site under site/ and needing visual verification of layout
  • SKILL.md covers Steps and Notes
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Preview Site is an agent skill from dpc/tau. Use this skill when changing or reviewing Tau's static site under site/ and needing visual verification of layout, spacing, colors, alignment, desktop rendering, mobile rendering, or screenshot-based regressions.

Its SKILL.md is about 310 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in Frontend & Design, covering Static sites and blogs. The repository describes itself as: Tau Coding Agent - like Pi, but twice as much. The licence is MPL-2.0.

When your agent uses it

  • Reviewing Taus static site under site/ and needing visual verification of layout
  • Desktop rendering
  • Mobile rendering
  • Screenshot-based regressions

Example prompts

  • “/preview-site”

Workflow steps

4 steps, taken from the first numbered list in SKILL.md.

  1. Run headless Chromium to capture a full-page screenshot
  2. Read the screenshot image at /tmp/tau-site-preview.png using the Read tool -- it supports images natively.
  3. Inspect the rendering and report any issues with layout, alignment, spacing, colors, or font consistency.
  4. Clean up: rm /tmp/tau-site-preview.png

What it can do on your machine

Read from SKILL.md and the folder at commit d2e1955. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    No scripts in the folder and no shell commands in SKILL.md (its code samples are bash).

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Preview Site loads about 308 tokens when it runs. Until then it costs about 56 tokens; SKILL.md has 104 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~56
When it runs · the whole SKILL.md, loaded when a task matches
~308

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from dpc/tau at commit d2e1955, republished under its MPL-2.0 licence (© dpc). 104 words, ~308 tokens.

Download SKILL.mdSave it as .claude/skills/preview-site/SKILL.md (or your agent's skills folder).
name
preview-site
description
Use this skill when changing or reviewing Tau's static site under site/ and needing visual verification of layout, spacing, colors, alignment, desktop rendering, mobile rendering, or screenshot-based regressions.
user-invocable
true

Preview Site

Take a headless browser screenshot of site/index.html to visually inspect layout, colors, spacing, and alignment.

Steps

  1. Run headless Chromium to capture a full-page screenshot:
bash
chromium --headless \
  --screenshot=/tmp/tau-site-preview.png \
  --window-size=1280,4000 \
  --disable-gpu --no-sandbox \
  "file://$(pwd)/site/index.html"
  1. Read the screenshot image at /tmp/tau-site-preview.png using the Read tool -- it supports images natively.

  2. Inspect the rendering and report any issues with layout, alignment, spacing, colors, or font consistency.

  3. Clean up: rm /tmp/tau-site-preview.png

Notes

  • The --window-size=1280,4000 height should be tall enough to capture the full page without scrolling. Increase if the page grows.
  • Chromium will emit dbus/vaapi warnings on headless servers -- these are harmless and can be ignored.
  • For mobile layout testing, use --window-size=375,2000.

© dpc, MPL-2.0. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

Just SKILL.md in .agents/skills/preview-site of dpc/tau.

Open the folder on GitHubat commit d2e1955

Compare with similar skills

Preview Site next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Preview Site compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Preview Site this skilldpc/tau104—~308Automated safety check: PassMPL-2.0
Tabler Astro Dev Servertabler/tabler42k—~1.2kAutomated safety check: PassMIT
Create Docsvictorgarciaesgi/nuxt-typed-router4132 repos~2.8kAutomated safety check: PassMIT
Tabler Astro Component Scriptstabler/tabler42k—~2.1kAutomated safety check: PassMIT
Paperclip Pagepaperclipai/paperclip98k—~1kAutomated safety check: PassMIT
Kill AI Slopyetone/kill-ai-slop1.3k—~1.4kAutomated safety check: PassApache-2.0

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Questions about Preview Site

What does Preview Site do?

A skill your agent uses when changing or reviewing Tau's static site under site/ and needing visual verification of layout, spacing, colors, alignment, desktop rendering, mobile rendering, or…. Preview Site is an agent skill from dpc/tau. Use this skill when changing or reviewing Tau's static site under site/ and needing visual verification of layout, spacing, colors, alignment, desktop rendering, mobile rendering, or screenshot-based regressions.

When should I use Preview Site?

Preview Site fits situations like: reviewing Taus static site under site/ and needing visual verification of layout; desktop rendering; mobile rendering; screenshot-based regressions.

How do I install Preview Site in Claude Code?

Run `npx skills add dpc/tau --skill preview-site -a claude-code`. Or copy the skill folder (.agents/skills/preview-site in dpc/tau) into .claude/skills/preview-site in your project. Claude Code loads it when a task matches its description.

How do I install Preview Site in Codex?

Run `npx skills add dpc/tau --skill preview-site -a codex`. Or copy the skill folder (.agents/skills/preview-site in dpc/tau) into .agents/skills/preview-site in your project. Codex loads it when a task matches its description.

Can I use Preview Site in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add dpc/tau --skill preview-site -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/preview-site, .gemini/skills/preview-site, .github/skills/preview-site and .opencode/skills/preview-site in your project.

What does Preview Site need to run?

SKILL.md names no scripts, command-line tools or credentials: Preview Site is instructions for the agent only.

Does Preview Site access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Preview Site safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Preview Site use?

Preview Site is published under the MPL-2.0 licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Preview Site use?

About 308 tokens (SKILL.md is roughly 1.2k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Preview Site?

Skills that share tags, products or a category with Preview Site: Tabler Astro Dev Server (tabler/tabler, 42k stars), Create Docs (victorgarciaesgi/nuxt-typed-router, 413 stars), Tabler Astro Component Scripts (tabler/tabler, 42k stars) and Paperclip Page (paperclipai/paperclip, 98k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Preview Site?

dpc (a GitHub user) maintains it in dpc/tau, which has 104 GitHub stars. The repository holds 15 skills in this directory. The repository was last updated on October 5, 2026.

Source: dpc/tau on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.