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Agent skill

Hyphens

by thedaviddias in thedaviddias/Front-End-Checklist

A skill your agent uses when auditing URL structures for word separator format, generating slugs from titles, or planning a URL migration from underscores or spaces to hyphens with appropriate…

MITAuto-check passed

Install Hyphens

skills CLI
$ npx skills add thedaviddias/Front-End-Checklist --skill hyphens -a claude-code

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

GitHub CLI
$ gh skill install thedaviddias/Front-End-Checklist hyphens --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/thedaviddias/Front-End-Checklist.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/hyphens .claude/skills/hyphens && 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
hyphens
GitHub stars
74k
Token cost
~720 tokens
SKILL.md length
338 words
Files
2 (incl. references)
Skills in repo
390
Repo updated
First seen
Licence
MIT

At a glance

A skill your agent uses when auditing URL structures for word separator format, generating slugs from titles, or planning a URL migration from underscores or spaces to hyphens with appropriate…

  • Works in 7 steps: Identify all pages with underscores or… → Generate the hyphenated equivalent:… → Set up 301 permanent redirects from the… → …
  • Auditing URL structures for word separator format
  • SKILL.md covers Quick Reference, Check, Fix and Explain, plus 1 more section
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Hyphens is an agent skill from thedaviddias/Front-End-Checklist. Use when auditing URL structures for word separator format, generating slugs from titles, or planning a URL migration from underscores or spaces to hyphens with appropriate redirects.

Its SKILL.md is about 720 tokens, which your agent loads only when the skill is triggered. The skill folder holds 2 other files, including reference files (for example `references/rule.md`).

The repository describes itself as: 🗂 The essential checklist for modern web development, for humans and AI agents. The licence is MIT.

When your agent uses it

  • Auditing URL structures for word separator format
  • Generating slugs from titles
  • Planning a URL migration from underscores
  • Spaces to hyphens with appropriate redirects

Example prompts

  • “/hyphens”

Workflow steps

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

  1. Identify all pages with underscores or spaces in URL path segments.
  2. Generate the hyphenated equivalent: replace _ with -, spaces/%20 with -.
  3. Set up 301 permanent redirects from the old URLs to the new hyphenated URLs.
  4. Update internal links throughout the site to point to the new URLs.
  5. Submit the new URLs to Google Search Console for re-indexing.
  6. Update your sitemap.xml to include only the new hyphenated URLs.
  7. In your CMS or slug-generation function, enforce hyphens going forward

What it can do on your machine

Read from SKILL.md and the folder at commit e8d14d0. 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.

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

  • Network

    Links to these hosts (documentation or services it may open):

    • frontendchecklist.io

    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

Hyphens loads about 720 tokens when it runs, and up to ~1.6k if it reads all its reference files. Until then it costs about 48 tokens; SKILL.md has 338 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~48
When it runs · the whole SKILL.md, loaded when a task matches
~720
With references · SKILL.md plus every file in references/, read only if the agent opens them
~1.6k

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 thedaviddias/Front-End-Checklist at commit e8d14d0, republished under its MIT licence (© thedaviddias). 338 words, ~720 tokens.

Download SKILL.mdSave it as .claude/skills/hyphens/SKILL.md (or your agent's skills folder). This skill also uses 1 other file; get the full folder from GitHub.
name
hyphens
description
Use when auditing URL structures for word separator format, generating slugs from titles, or planning a URL migration from underscores or spaces to hyphens with appropriate redirects.
metadata.category
seo
metadata.priority
medium
metadata.difficulty
intermediate
metadata.estimatedTime
10
metadata.source
frontendchecklist.io
metadata.url
https://frontendchecklist.io/rules/seo/hyphens

Use hyphens in URLs

Google's search systems interpret hyphens in URLs as word boundaries, enabling it to match the URL against individual keyword queries. Underscores join words into a single token, meaning /seo_practices is seen as one word 'seopractices' rather than two separate words 'seo' and 'practices'.

Quick Reference

  • Use hyphens (-) to separate words in URLs — Google treats hyphens as word separators, underscores as part of the word
  • /best-seo-practices is better than /best_seo_practices or /bestseopractices
  • Changing existing URLs from underscores to hyphens requires 301 redirects to preserve link equity

Check

Inspect the URL path segment of each page. Flag any URL that contains: (1) Underscores (_) as word separators (e.g., /best_practices). (2) Spaces encoded as %20 or + in path segments. (3) Mixed separators in the same URL (e.g., /best-practices_guide). Report the count of non-hyphenated URLs by category.

Fix

  1. Identify all pages with underscores or spaces in URL path segments.
  2. Generate the hyphenated equivalent: replace _ with -, spaces/%20 with -.
  3. Set up 301 permanent redirects from the old URLs to the new hyphenated URLs.
  4. Update internal links throughout the site to point to the new URLs.
  5. Submit the new URLs to Google Search Console for re-indexing.
  6. Update your sitemap.xml to include only the new hyphenated URLs.
  7. In your CMS or slug-generation function, enforce hyphens going forward:
    • Slug: title.toLowerCase().replace(/\s+/g, '-').replace(/[^a-z0-9-]/g, '')

Explain

Google's John Mueller has confirmed that Google interprets hyphens as word separators in URLs, but treats underscores as word joiners. This means a URL with underscores matches fewer individual keyword queries. For example, /web_design would match 'web_design' as a single token, while /web-design matches both 'web design' and 'webdesign' queries.

Code Review

Parse all URL paths used in the application's router or CMS slug fields. Flag any path segment containing _ characters between words or any %20 space encoding. Verify slug-generation utilities produce lowercase hyphenated output. Check redirect rules to confirm old underscore URLs are permanently (301) redirected to their hyphenated equivalents.

For full implementation details, code examples, and framework-specific guidance, see references/rule.md.

Rule page: https://frontendchecklist.io/rules/seo/hyphens

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

Files

SKILL.md and 1 other file (references) in skills/hyphens of thedaviddias/Front-End-Checklist.

  • SKILL.md
  • references/rule.md

Open the folder on GitHubat commit e8d14d0

Compare with similar skills

Hyphens 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.

Hyphens compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Hyphens this skillthedaviddias/Front-End-Checklist74k—~720Automated safety check: PassMIT
Structured Image Generationbytedance/deer-flow84k4 repos~2.9kAutomated safety check: PassMIT
Structured Autonomy Generategithub/awesome-copilot40k1 repos~1kAutomated safety check: PassMIT
Folder Structure Blueprint Generatorgithub/awesome-copilot40k1 repos~3.5kAutomated safety check: PassMIT
Generatealirezarezvani/claude-skills28k1 repos~1.1kAutomated safety check: PassMIT
Video Generationbytedance/deer-flow84k3 repos~1.4kAutomated safety check: PassMIT

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    84k GitHub starsUsed in 4 repos~2.9k tokens
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Questions about Hyphens

What does Hyphens do?

A skill your agent uses when auditing URL structures for word separator format, generating slugs from titles, or planning a URL migration from underscores or spaces to hyphens with appropriate…. Hyphens is an agent skill from thedaviddias/Front-End-Checklist. Use when auditing URL structures for word separator format, generating slugs from titles, or planning a URL migration from underscores or spaces to hyphens with appropriate redirects.

When should I use Hyphens?

Hyphens fits situations like: auditing URL structures for word separator format; generating slugs from titles; planning a URL migration from underscores; spaces to hyphens with appropriate redirects.

How do I install Hyphens in Claude Code?

Run `npx skills add thedaviddias/Front-End-Checklist --skill hyphens -a claude-code`. Or copy the skill folder (skills/hyphens in thedaviddias/Front-End-Checklist) into .claude/skills/hyphens in your project. Claude Code loads it when a task matches its description.

How do I install Hyphens in Codex?

Run `npx skills add thedaviddias/Front-End-Checklist --skill hyphens -a codex`. Or copy the skill folder (skills/hyphens in thedaviddias/Front-End-Checklist) into .agents/skills/hyphens in your project. Codex loads it when a task matches its description.

Can I use Hyphens 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 thedaviddias/Front-End-Checklist --skill hyphens -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/hyphens, .gemini/skills/hyphens, .github/skills/hyphens and .opencode/skills/hyphens in your project.

What does Hyphens need to run?

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

Does Hyphens access the network?

SKILL.md names 1 domain. As links in the text: frontendchecklist.io. This is read from the text; nothing was executed.

Is Hyphens 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 Hyphens use?

Hyphens is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Hyphens use?

About 720 tokens (SKILL.md is roughly 2.9k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 903 tokens, read only when the agent opens those files.

What are the alternatives to Hyphens?

Skills that share tags, products or a category with Hyphens: Structured Image Generation (bytedance/deer-flow, 84k stars), Structured Autonomy Generate (github/awesome-copilot, 40k stars), Folder Structure Blueprint Generator (github/awesome-copilot, 40k stars) and Generate (alirezarezvani/claude-skills, 28k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Hyphens?

thedaviddias (a GitHub user) maintains it in thedaviddias/Front-End-Checklist, which has 74,421 GitHub stars. The repository holds 390 skills in this directory. The repository was last updated on October 6, 2026.

Source: thedaviddias/Front-End-Checklist on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.