Async Signal Safety Review

Quality score: 80/100 · Category: General · Sub-category: general-misc

type:review

Review code changes for async-signal-safety violations in KSCrash crash handlers, signal handlers, and monitor code. Verifies suspect system calls by reading the actual implementation in Apple's open-source repos on github.com/apple-oss-distributions rather than guessing. Use when the user asks to review a diff/branch/PR/file for signal safety, or before landing changes that touch signal handlers, Mach exception handlers, or anything reachable from `Sources/KSCrashRecording`, `Sources/KSCrashRecordingCore`, `Sources/KSCrashBootTimeMonitor`, or `Sources/KSCrashDiscSpaceMonitor`.

What this skill does

Async Signal Safety Review is a well-rated Claude Code skill (quality score 80/100) in the general-misc sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/async-signal-safety-review/ and loads when your prompt matches the skill's trigger.

When to invoke it: Use when the user asks to review a diff/branch/PR/file for signal safety, or before landing changes that touch signal handlers, Mach exception handlers, or anything reachable from `Sources/KSCrashRecording`, `Sources/KSCrashRecordingCore`, `Sources/KSCrashBootTimeMonitor`, or `Sources/KSCrashDiscSpaceMonitor`.

Who uses this skill

The Async Signal Safety Review skill is built for Claude Code users and developers across all disciplines looking for general-purpose AI assistance. 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/async-signal-safety-review
curl -L https://claudskills.com/skills/async-signal-safety-review/SKILL.md \
  -o ~/.claude/skills/async-signal-safety-review/SKILL.md

Or just download SKILL.md directly and drop it into ~/.claude/skills/async-signal-safety-review/. Claude Code auto-discovers it on next session.

Skills live at ~/.claude/skills/async-signal-safety-review/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\async-signal-safety-review\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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