How do I install the Ultrareview Claude Code skill?

Install via the ClaudSkills desktop app (one click) or copy SKILL.md from the source repository to ~/.claude/skills/ultrareview/SKILL.md and restart Claude Code. Both flows are detailed at https://claudskills.com/install/.

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.

ClaudSkills / Security / security-misc

Ultrareview

Category: Security · Sub-category: security-misc · Last updated: 2026-05-21

Multi-agent parallel code review system inspired by Claude Code's /ultrareview. Spawn 5-20 specialized agents (security, logic, performance, edge cases, architecture) to review code simultaneously, cross-validate findings, and produce a consolidated bug report. Use when asked to do deep code review, ultrareview, multi-agent review, comprehensive bug hunting, security audit, or thorough pre-merge code inspection.

From the source SKILL.md

Multi-agent parallel code review: spawn a fleet of specialized review agents, cross-validate findings, and output a consolidated report with severity levels.

What this skill does

Ultrareview is a community-contributed Claude Code skill in the security-misc sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/ultrareview/ and loads when your prompt matches the skill's trigger.

When to invoke it: Use when asked to do deep code review, ultrareview, multi-agent review, comprehensive bug hunting, security audit, or thorough pre-merge code inspection.

Who uses this skill

The Ultrareview Claude Code skill is built for security engineers, penetration testers, DevSecOps practitioners, and development teams hardening codebases and infrastructure. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 69,000+ 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/ultrareview
curl -L https://claudskills.com/skills/ultrareview/SKILL.md \
  -o ~/.claude/skills/ultrareview/SKILL.md

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

Skills live at ~/.claude/skills/ultrareview/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\ultrareview\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.

Pro

For the full experience including quality scoring and one-click install features for each skill — upgrade to Pro.

See pricing → Download desktop app

Attribution & license

Source: https://github.com/NafisRayan/100x-Agent-Toolkit/blob/HEAD/skills/ultrareview/SKILL.md
Author: NafisRayan

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Ultrareview

From the source SKILL.md

What this skill does

Who uses this skill

How to install

Manual install (2 steps)

One-click install via the desktop app

Attribution & license

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