MathKernel exposes 162+ math tools across SymPy, Z3, Lean and mpmath with per-claim provenance.

Created September 6, its stated split is "The LLM interprets intent; the MathKernel establishes mathematical evidence" (GitHub). It orchestrates SymPy, mpmath for arbitrary-precision and interval arithmetic, Z3, Lean, SciPy, NumPy/CuPy and Numba behind one typed MathIR, speaking MCP over stdio with math_-prefixed tools including math_parse, math_solve, math_reason and math_derivation_trace. Carrying trust labels and assumption provenance per claim, rather than returning a bare number, is the design decision to copy.