Simulation Convergence Check Agent

A simulation result means little unless it has converged and the numerical error is known. This agent runs or reads your simulations at several resolutions or time steps, checks that key outputs converge, and estimates numerical error. It also checks conservation of mass, energy or momentum, and compares results with known analytic cases, so a code bug does not hide behind a smooth-looking answer. If results have not converged, it suggests finer settings and launches new runs within your compute budget, then checks again. It writes a short convergence note with plots for each case. You decide which results to use and approve any run that would exceed the budget. Edge case: a run that converges but violates energy conservation is flagged rather than accepted.