dsh-diffgeom: A Differential Geometry Symbolic Computation Plugin for DSH

The DeepSeek Harness plugin dsh-diffgeom integrates SymPy's differential geometry capabilities into DSH for handling geometry, physics, and tensor field problems. It provides support for manifolds, tensor fields, and differential operators (such as the exterior derivative d, the wedge product ∧, and the Lie derivative), along with Riemannian geometry computation tools (Christoffel symbols, Ricci/Riemann components). By invoking a Python backend, it enables direct manifold calculations in code and comes with 2D/3D Euclidean environments preset by default, allowing developers to quickly perform complex geometric computations without manually setting up their own scripts.