The "synthesis-planning" topic on GitHub groups 1 open-source project in the DeepSeek Harness (DSH) ecosystem, led by dsh-synomega. dsh-synomega — Organic reaction prediction for DeepSeek Harness: retrosynthesis, forward prediction, route planning, SynScore, and multi-component evolution — with in-chat molecule, reaction, and route-tree visualisation. Every project here is indexed by DSH Universe with live GitHub data — stars, activity and install status — so you can compare and install directly.