How do I install the Roll Spar Claude Code skill?

Install via the ClaudSkills desktop app (one click) or copy SKILL.md from the source repository to ~/.claude/skills/roll-spar/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

Roll Spar

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

Adversarial TDD mode with Attacker/Defender agents. Attacker writes tests to break the system, Defender writes minimal code to pass. Use for high-risk logic like auth, payments, data integrity, or complex state machines.

From the source SKILL.md

Adversarial TDD: two agents collaborate in attack-and-defend mode to build a more robust system.

What this skill does

Roll Spar 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/roll-spar/ and loads when your prompt matches the skill's trigger.

Who uses this skill

The Roll Spar 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 70,000+ 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/roll-spar
curl -L https://claudskills.com/skills/roll-spar/SKILL.md \
  -o ~/.claude/skills/roll-spar/SKILL.md

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

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

License: MIT

Cite this skill

If you reference this skill in a blog post, paper, or documentation, you can cite it as:

APA

ClaudSkills. (2026). Roll Spar [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/roll-spar/

BibTeX

@misc{roll-spar-2026,
  author    = {ClaudSkills},
  title     = {Roll Spar [Claude Code skill]},
  year      = {2026},
  publisher = {ClaudSkills},
  url       = {https://claudskills.com/skills/roll-spar/}
}

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

[![ClaudSkills](https://claudskills.com/badge/roll-spar.svg)](https://claudskills.com/skills/roll-spar/?utm_source=badge&utm_medium=readme&utm_campaign=skill_badge)

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Part of ClaudSkills — the open registry for Claude Skills & Claude Code Skills. · What's New · Install guide · About · llms.txt

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