Anthropic Accused of Plagiarizing Mononoke's Source Control Tech

Anthropic’s Scion project has been accused of intentionally copying Mononoke’s source control technology, including its data model and API structures. The author initially believed the similarities were unintentional but later confirmed that Scion’s team knew about Mononoke and deliberately copied its Bonsai data model and other features. The core issue is not the copying itself but the lack of proper attribution, with Anthropic only crediting the broader Sapling ecosystem rather than Mononoke specifically. The author emphasizes that while rebuilding an existing system in a short time is impressive, presenting it as an original achievement diminishes the work of the original Mononoke team.