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Readability Line Length

Category: Content  ·  Sub-category: content-misc  ·  Last updated:
Set line length (measure) for prose — capping the maximum width of body text so lines stay in the 45–75 character range that supports comfortable sustained reading. Use when designing article layouts, documentation, email templates, dashboard copy, or any container that holds paragraphs of prose. Line length is the most fundamental readability decision because it directly affects the reader''s eye movement; lines that are too long or too short both cost reading comfort.
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From the source SKILL.md

Line length, also called measure in typography, is the number of characters per line. It's the most fundamental readability decision because it directly affects the reader's eye movement: at the end of each line, the eye must jump back and find the start of the next line, and the difficulty of that jump scales with line length.

What this skill does

Readability Line Length is a community-contributed Claude Code skill in the content-misc sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/readability-line-length/ and loads when your prompt matches the skill's trigger.

When to invoke it: Use when designing article layouts, documentation, email templates, dashboard copy, or any container that holds paragraphs of prose. Line length is the most fundamental readability decision because it directly affects the reader''s eye movement; lines that are too long or too short both cost reading comfort.

Who uses this skill

The Readability Line Length Claude Code skill is built for content creators, marketers, copywriters, SEO professionals, and editorial teams. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 178,000+ 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/readability-line-length
curl -L https://claudskills.com/skills/readability-line-length/SKILL.md \
  -o ~/.claude/skills/readability-line-length/SKILL.md

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

Skills live at ~/.claude/skills/readability-line-length/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\readability-line-length\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 Readability Line Length Claude Code skill?
Install via the ClaudSkills desktop app (one click) or copy SKILL.md from the source repository to ~/.claude/skills/readability-line-length/SKILL.md and restart Claude Code. Both flows are detailed at claudskills.com/install/.
What does the Readability Line Length skill do?
Set line length (measure) for prose — capping the maximum width of body text so lines stay in the 45–75 character range that supports comfortable sustained reading. Use when designing article layouts, documentation, email templates, dashboard copy, or any container that holds paragraphs of prose. Line length is the most fundamental readability decision because it directly affects the reader''s eye movement; lines that are too long or too short both cost reading comfort.
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 Readability Line Length skill?
Use Readability Line Length when your Claude Code task falls under the Content category — specifically in the content misc 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 Readability Line Length" or describe the task and let Claude pick). Browse related skills at /category/content/.
What is a Claude Code skill and how does the Readability Line Length 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. Readability Line Length is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Content 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
Alex0nder. (2026). Readability Line Length [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/readability-line-length/
BibTeX
@misc{readability-line-length-2026,
  author    = {Alex0nder},
  title     = {Readability Line Length [Claude Code skill]},
  year      = {2026},
  publisher = {ClaudSkills},
  url       = {https://claudskills.com/skills/readability-line-length/}
}

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