Uno Reverse
Radical simplification, red-teaming, and Occam's Razor devil's advocate for software architecture, PRDs, agent workflows, and technical designs. Challenges feature creep, speculative abstractions, and bloated specifications by proposing minimum viable primitives that deliver 90% of value with 10% of moving parts. Prefers impartial dedicated subagent delegation to prevent context contamination and confirmation bias. Activate when reviewing complex technical proposals, pruning bloated architectures, red-teaming design docs, eliminating speculative features, or seeking the simplest possible path to production.
Security AStatic scan found no risk patternsHow grading works ›
From the source SKILL.md
The uno-reverse skill provides a rigorous contrarian simplification and red-teaming framework. While standard engineering processes naturally drift toward feature accretion, defensive layering, and speculative generalization, uno-reverse forces the opposite trajectory: aggressive subtraction, primitive collapsing, and minimum viable execution.
What this skill does
Uno Reverse is a community-contributed Claude Code skill in the red-team sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/uno-reverse/ and loads when your prompt matches the skill's trigger.
Who uses this skill
The Uno Reverse 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 196,000+ 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/uno-reverse
curl -L https://claudskills.com/skills/uno-reverse/SKILL.md \
-o ~/.claude/skills/uno-reverse/SKILL.md
Or just download SKILL.md directly and drop it into ~/.claude/skills/uno-reverse/. Claude Code auto-discovers it on next session.
Skills live at ~/.claude/skills/uno-reverse/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\uno-reverse\SKILL.md on Windows. See the full install guide for step-by-step instructions.
Telegram
📱 Install from your phone or desktop Telegram
Open @claudskills_bot on Telegram, tap Open Desktop App, and the desktop app installs this skill for you. Or share the bot link with a colleague — they get the same one-tap install. Learn more →
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.
Frequently asked questions
How do I install the Uno Reverse Claude Code skill?
Install via the ClaudSkills desktop app (one click) or copy
SKILL.md from the source repository to
~/.claude/skills/uno-reverse/SKILL.md and restart Claude Code. Both flows are detailed at
claudskills.com/install/.
What does the Uno Reverse skill do?
Radical simplification, red-teaming, and Occam's Razor devil's advocate for software architecture, PRDs, agent workflows, and technical designs. Challenges feature creep, speculative abstractions, and bloated specifications by proposing minimum viable primitives that deliver 90% of value with 10% of moving parts. Prefers impartial dedicated subagent delegation to prevent context contamination and confirmation bias. Activate when reviewing complex technical proposals, pruning bloated architectures, red-teaming design docs, eliminating speculative features, or seeking the simplest possible path to production.
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.
When should I use the Uno Reverse skill?
Use Uno Reverse when your Claude Code task falls under the Security category — specifically in the red team area. Claude Code auto-discovers installed skills and invokes the right one based on the task description, so you can also ask Claude directly (e.g. "use Uno Reverse" or describe the task and let Claude pick). Browse related skills at
/category/security/.
What is a Claude Code skill and how does the Uno Reverse skill fit in?
A Claude Code skill is a
SKILL.md file that lives under
~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. Uno Reverse is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Security category. Learn more at
/learn/what-is-a-claude-skill/.
Attribution & license
Cite this skill
If you reference this skill in a blog post, paper, or documentation, you can cite it as:
APA
danicat. (2026). Uno Reverse [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/uno-reverse/
BibTeX
@misc{uno-reverse-2026,
author = {danicat},
title = {Uno Reverse [Claude Code skill]},
year = {2026},
publisher = {ClaudSkills},
url = {https://claudskills.com/skills/uno-reverse/}
}Embed this skill
Promote, attribute, or link this skill from your own README, blog post, or documentation. All three snippets are free to use — no sign-up, no API key. More distribution surfaces →
Badge
[](https://claudskills.com/skills/uno-reverse/?utm_source=badge&utm_medium=readme&utm_campaign=skill_badge)
<script>
<script src="https://claudskills.com/embed/uno-reverse.js" async></script>
<iframe>
<iframe src="https://claudskills.com/embed/uno-reverse.html" width="100%" height="160" frameborder="0" loading="lazy" title="ClaudSkills: Uno Reverse"></iframe>
Security scan
Grade A · scanned 2026-09-28 — free static scan against the OWASP Agentic Skills Top 10.
No risk patterns were found in any of the ten OWASP-aligned categories. How grading works ›
- ✓ Prompt injection
- ✓ Data exfiltration
- ✓ Supply chain
- ✓ Reverse shell
- ✓ Credentials
- ✓ Execution
- ✓ Filesystem
- ✓ Persistence
- ✓ Obfuscation
- ✓ Network
Show this grade on your repo (click to copy):
[](https://claudskills.com/skills/uno-reverse/#security)
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