Disclosure: I work on Darkmoon, and I tried to make this a fair map of the open source field rather than a pitch. If you are choosing an open source AI pentester, here is how the main options actually differ.
Strix
usestrix/strix runs code dynamically and validates web and app vulnerabilities with real proof of concept exploits. It is strong and fast on the application layer. If your scope is mostly web and API, look at it seriously.
PentAGI and Shannon
PentAGI (vxcontrol) is a self hosted multi agent system with 20 plus built in tools. Shannon (KeygraphHQ) is a white box, Claude based pentester that reads source and proves exploitation, and it scores very well on the XBOW benchmark. Both are excellent at what they focus on.
Where Darkmoon is different
Darkmoon focuses on multi surface coverage (web, cloud, Active Directory, Kubernetes, API and internal networks) orchestrated through MCP, with the methodology written as Markdown playbooks you can read and fork, and an evidence trail on every finding.
How to choose honestly
For source aware web testing, Shannon and Strix are compelling. For broad multi host chaining across AD and Kubernetes with an auditable method, try Darkmoon. They are not mutually exclusive.
Try it
Read the playbooks and run whichever fits your scope against a lab. Feedback and corrections to this comparison are welcome.
- Repo (GPLv3): https://github.com/ASCIT31/Dark-Moon
- Docs: https://docs.dark-moon.org/
- Demo: https://youtu.be/1bFRVuMkZzY
Built by pentesters, open sourced for pentesters. Feedback on the methodology and the evidence trail is genuinely welcome.
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