Txt Audit

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

type:audittype:review

Review Apple text code for correctness, performance, and modernization risk in a single pass with severity-ranked findings. Covers TextKit 1 fallback triggers, NSTextStorage subclass correctness (edited / changeInLength / batched edits), didProcessEditing character-mutation bugs, deprecated glyph APIs, full-document ensureLayout, missing allowsNonContiguousLayout, NSLinguisticTagger / UIMenuController deprecations, missing performEditingTransaction wrappers on TextKit 2, Writing Tools coordinator gaps (writingToolsIgnoredRangesIn, isWritingToolsActive), String-vs-NSString length confusion in range arithmetic, and main-thread storage rules. Use when a user asks to audit, scan, or review a text editor codebase, when preparing an editor for shipping, when triaging a post-release regression in TextKit code, or when a pull request needs a structured pass focused on text-specific risks.

What this skill does

Txt Audit 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-audit/ and loads when your prompt matches the skill's trigger.

When to invoke it: Use when a user asks to audit, scan, or review a text editor codebase, when preparing an editor for shipping, when triaging a post-release regression in TextKit code, or when a pull request needs a structured pass focused on text-specific risks.

Who uses this skill

The Txt Audit 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-audit
curl -L https://claudskills.com/skills/txt-audit/SKILL.md \
  -o ~/.claude/skills/txt-audit/SKILL.md

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

Skills live at ~/.claude/skills/txt-audit/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\txt-audit\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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Part of ClaudSkills — the open registry for Claude Code skills. · What's New · Install guide · About · llms.txt

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