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2 files changed, 9 insertions, 2 deletions

diff --git a/Source/FieldSolver/SpectralSolver/SpectralAlgorithms/SpectralBaseAlgorithm.H b/Source/FieldSolver/SpectralSolver/SpectralAlgorithms/SpectralBaseAlgorithm.H
index 18d26e0c8..5c662e533 100644
--- a/Source/FieldSolver/SpectralSolver/SpectralAlgorithms/SpectralBaseAlgorithm.H
+++ b/Source/FieldSolver/SpectralSolver/SpectralAlgorithms/SpectralBaseAlgorithm.H
@@ -6,7 +6,10 @@
 
 /* \brief Class that updates the field in spectral space
  * and stores the coefficients of the corresponding update equation.
- * TODO: Mention base class
+ *
+ * `SpectralBaseAlgorithm` is only a base class and cannot be used directly.
+ * Instead use its subclasses, which implement the specific field update
+ * equations for a given spectral algorithm.
  */
 class SpectralBaseAlgorithm
 {
diff --git a/Source/FieldSolver/SpectralSolver/SpectralSolver.cpp b/Source/FieldSolver/SpectralSolver/SpectralSolver.cpp
index 5da39a7c7..c21c3cfb1 100644
--- a/Source/FieldSolver/SpectralSolver/SpectralSolver.cpp
+++ b/Source/FieldSolver/SpectralSolver/SpectralSolver.cpp
@@ -2,7 +2,11 @@
 #include <SpectralSolver.H>
 #include <PsatdAlgorithm.H>
 
-/* \brief TODO Description
+/* \brief Initialize the spectral Maxwell solver
+ *
+ * This function selects the spectral algorithm to be used, allocates the
+ * corresponding coefficients for the discretized field update equation,
+ * and prepares the structures that store the fields in spectral space.
  */
 SpectralSolver::SpectralSolver(
                 const amrex::BoxArray& realspace_ba,