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ClaudSkills / Engineering / testing

Pantheon

Category: Engineering  ·  Sub-category: testing  ·  Last updated:
ai:agent
A skill that runs a hard, testable coding task through a multi-agent harness instead of a single model pass (base variant, no external model needed). It takes implementations, large refactors, or migrations whose correctness can be expressed as tests and runs them through plan → parallel variants (with a test-driven self-correction loop) → adversarial verification (Claude itself) → synthesis, raising correctness over a single pass. Works on Claude Code's Workflow orchestration alone. Use when the user says "pantheon", "run it through pantheon", "build several variants, gate on tests, then adversarially verify", "really hammer this implementation", or wants to solve a hard coding/agentic task with multiple agents. For cross-model (GPT-5.5) adversarial verification, use the pantheon-x skill instead. Don't use for easy one-shot questions or trivial edits (cost is high).
Security AStatic scan found no risk patternsHow grading works ›

From the source SKILL.md

A harness that wraps a coding task in multiple agents instead of a single pass. It does not change model weights; via plan → parallel variants → test-driven self-correction → adversarial verification → synthesis it raises correctness on work whose answer you can express as tests. It's proven techniques (best-of-N, self-correction, adversarial verification) bundled into one command — not a change to the model's single-shot reasoning.

What this skill does

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

When to invoke it: Use when the user says "pantheon", "run it through pantheon", "build several variants, gate on tests, then adversarially verify", "really hammer this implementation", or wants to solve a hard coding/agentic task with multiple agents. For cross-model (GPT-5.

Who uses this skill

The Pantheon Claude Code skill is built for software engineers, backend developers, full-stack teams, and technical leads building and maintaining production systems. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 146,000+ 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/pantheon
curl -L https://claudskills.com/skills/pantheon/SKILL.md \
  -o ~/.claude/skills/pantheon/SKILL.md

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

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

See pricing → Download desktop app

Frequently asked questions

How do I install the Pantheon Claude Code skill?
Install via the ClaudSkills desktop app (one click) or copy SKILL.md from the source repository to ~/.claude/skills/pantheon/SKILL.md and restart Claude Code. Both flows are detailed at claudskills.com/install/.
What does the Pantheon skill do?
A skill that runs a hard, testable coding task through a multi-agent harness instead of a single model pass (base variant, no external model needed). It takes implementations, large refactors, or migrations whose correctness can be expressed as tests and runs them through plan → parallel variants (with a test-driven self-correction loop) → adversarial verification (Claude itself) → synthesis, raising correctness over a single pass. Works on Claude Code's Workflow orchestration alone. Use when the user says "pantheon", "run it through pantheon", "build several variants, gate on tests, then adversarially verify", "really hammer this implementation", or wants to solve a hard coding/agentic task with multiple agents. For cross-model (GPT-5.5) adversarial verification, use the pantheon-x skill instead. Don't use for easy one-shot questions or trivial edits (cost is high).
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 Pantheon skill?
Use Pantheon when your Claude Code task falls under the Engineering category — specifically in the testing 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 Pantheon" or describe the task and let Claude pick). Browse related skills at /category/engineering/.
What is a Claude Code skill and how does the Pantheon 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. Pantheon is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Engineering 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
lolu1032. (2026). Pantheon [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/pantheon/
BibTeX
@misc{pantheon-2026,
  author    = {lolu1032},
  title     = {Pantheon [Claude Code skill]},
  year      = {2026},
  publisher = {ClaudSkills},
  url       = {https://claudskills.com/skills/pantheon/}
}

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Security scan

Grade A · scanned 2026-07-06 — 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 ›

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