ClaudSkills / Engineering / engineering-misc

Txt Layout Invalidation

Quality score: 70/100 · Category: Engineering · Sub-category: engineering-misc

Configure and reason about text layout invalidation across TextKit 1 (NSLayoutManager) and TextKit 2 (NSTextLayoutManager). Covers what triggers invalidation, the lazy-recompute model, ensureLayout / invalidateLayout / invalidateGlyphs / invalidateDisplay scoping, the editing transaction in TextKit 2, NSTextContentStorage element regeneration, viewport-driven layout updates, and why rendering attributes do not invalidate layout. Use when reasoning about how layout gets recomputed after a text edit, after a container size change, or after exclusion-path mutation. Do NOT use for symptom-driven debugging — see txt-textkit-debug. Do NOT use for fallback issues — see txt-fallback-triggers.

What this skill does

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

When to invoke it: Use when reasoning about how layout gets recomputed after a text edit, after a container size change, or after exclusion-path mutation. Do NOT use for symptom-driven debugging — see txt-textkit-debug.

Who uses this skill

The Txt Layout Invalidation skill is built for software engineers, backend developers, full-stack teams, and technical leads building and maintaining production systems. 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-layout-invalidation
curl -L https://claudskills.com/skills/txt-layout-invalidation/SKILL.md \
  -o ~/.claude/skills/txt-layout-invalidation/SKILL.md

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

Skills live at ~/.claude/skills/txt-layout-invalidation/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\txt-layout-invalidation\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.

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