Txt Measurement

Quality score: 70/100 · Category: Security · Sub-category: threat-hunting

Measure rendered size of strings and attributed strings, size views to fit text content, and read per-line metrics from NSLayoutManager and NSTextLayoutManager. Covers boundingRect with NSStringDrawingOptions, NSStringDrawingContext for auto-shrink, sizeThatFits, intrinsicContentSize, usedRect, enumerateLineFragments, usageBoundsForTextContainer, line-fragment typographic bounds, and the lineFragmentPadding/textContainerInset arithmetic that makes measurements match what UITextView actually renders. Use when text clips by a pixel, boundingRect returns a single-line size for multi-line text, a self-sizing UITextView refuses to size, intrinsicContentSize is wrong, or the user needs line counts. Do NOT use for paragraph style, hyphenation, or line height — see txt-line-breaking. Do NOT use for layout invalidation timing — see txt-layout-invalidation.

What this skill does

Txt Measurement is a production-ready Claude Code skill (quality score 70/100) in the threat-hunting sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/txt-measurement/ and loads when your prompt matches the skill's trigger.

When to invoke it: Use when text clips by a pixel, boundingRect returns a single-line size for multi-line text, a self-sizing UITextView refuses to size, intrinsicContentSize is wrong, or the user needs line counts. Do NOT use for paragraph style, hyphenation, or line height — see txt-line-breaking.

Who uses this skill

The Txt Measurement skill is built for security engineers, penetration testers, DevSecOps practitioners, and development teams hardening codebases and infrastructure. It is part of the open ClaudSkills registry, a community-curated catalog of 15,000+ capabilities you can install for Claude Code — the Claude CLI agent.

How to install

Free

Manual install (2 steps)

mkdir -p ~/.claude/skills/txt-measurement
curl -L https://claudskills.com/skills/txt-measurement/SKILL.md \
  -o ~/.claude/skills/txt-measurement/SKILL.md

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

Skills live at ~/.claude/skills/txt-measurement/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\txt-measurement\SKILL.md on Windows. See the full install guide for step-by-step instructions.

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.

More Security skills

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

Browse all Security skills → Top 100 skills

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

Part of Acreator Store — Adam Lankamer's AI tools: GifPerfect · AspectPerfect · SlomoPerfect · Ucaption · UTagger · AutoXPoster · TestYourSkills