BeClaude

jailbreak-fable

New
14GitHub TrendingGeneralby keirsalterego

High-fidelity Claude Fable 5 (Mythos) environment emulation and automated multi-agent jailbreak (Pack Hunt) research laboratory.

First seen 6/16/2026

Summary

This skill emulates the Claude Fable 5 (Mythos) environment for high-fidelity testing and research.

  • It enables automated multi-agent jailbreak simulations (Pack Hunt) to probe safety boundaries and improve model robustness, making it valuable for security researchers and alignment engineers.

Install & Usage

1
Create the skills directory
mkdir -p .claude/skills
2
Download the skill file

Add the configuration to .claude/skills/jailbreak-fable.md

3
Invoke in Claude Code
/jailbreak-fable

Use Cases

Simulate multi-agent jailbreak scenarios to test Claude's resistance to coordinated attacks.
Automate red-teaming workflows by running Pack Hunt experiments with configurable agent personas.
Evaluate the effectiveness of safety filters under adversarial prompt engineering.
Generate detailed logs of jailbreak attempts for post-hoc analysis and model improvement.
Benchmark different Claude versions against a standardized set of jailbreak techniques.
Train new safety classifiers using synthetic data produced by the Mythos environment.

Usage Examples

1

/jailbreak-fable run pack-hunt --agents 5 --rounds 10

2

Run a Pack Hunt simulation with 3 adversarial agents targeting a base Claude model.

3

/jailbreak-fable analyze-logs --session last --output report.json

View source on GitHub
agent

Security Audits

LicenseUnknownSourceWarnRepositoryPass

Frequently Asked Questions

What is jailbreak-fable?

This skill emulates the Claude Fable 5 (Mythos) environment for high-fidelity testing and research. It enables automated multi-agent jailbreak simulations (Pack Hunt) to probe safety boundaries and improve model robustness, making it valuable for security researchers and alignment engineers.

How to install jailbreak-fable?

To install jailbreak-fable: create the skills directory (mkdir -p .claude/skills), then add the config to .claude/skills/jailbreak-fable.md. Finally, /jailbreak-fable in Claude Code.

What is jailbreak-fable best for?

jailbreak-fable is a community categorized under General. It is designed for: agent. Created by keirsalterego.

What can I use jailbreak-fable for?

jailbreak-fable is useful for: Simulate multi-agent jailbreak scenarios to test Claude's resistance to coordinated attacks.; Automate red-teaming workflows by running Pack Hunt experiments with configurable agent personas.; Evaluate the effectiveness of safety filters under adversarial prompt engineering.; Generate detailed logs of jailbreak attempts for post-hoc analysis and model improvement.; Benchmark different Claude versions against a standardized set of jailbreak techniques.; Train new safety classifiers using synthetic data produced by the Mythos environment..