diff --git a/src/SCClassicalPlanning.Documentation/wwwroot/md/getting-started.md b/src/SCClassicalPlanning.Documentation/wwwroot/md/getting-started.md
index c39bbc9..ceaf89e 100644
--- a/src/SCClassicalPlanning.Documentation/wwwroot/md/getting-started.md
+++ b/src/SCClassicalPlanning.Documentation/wwwroot/md/getting-started.md
@@ -17,7 +17,7 @@ In this section, we use the ['blocks world'](https://en.wikipedia.org/wiki/Block
 ### Defining Problems as Code
 
 ```
-using SCClassicalPlanning; // for Problem, HashSetState, Goal, Action, Effect
+using SCClassicalPlanning; // for HashSetState, Goal, Action, Effect, Problem
 using SCFirstOrderLogic; // for Constant, Term, Predicate, VariableDeclaration, EqualityIdentifier
 using static SCFirstOrderLogic.SentenceCreation.OperableSentenceFactory; // for OperablePredicate
 using Action = SCClassicalPlanning.Action; // an unfortunate clash with System.Action. I'd rather not rename it..
diff --git a/src/SCClassicalPlanning.ExampleDomains/AsCode/AirCargoOneAtATimeDomain.cs b/src/SCClassicalPlanning.ExampleDomains/AsCode/AirCargoOneAtATimeDomain.cs
index cc8a7e3..af685e0 100644
--- a/src/SCClassicalPlanning.ExampleDomains/AsCode/AirCargoOneAtATimeDomain.cs
+++ b/src/SCClassicalPlanning.ExampleDomains/AsCode/AirCargoOneAtATimeDomain.cs
@@ -50,7 +50,7 @@ static AirCargoOneAtATimeDomain()
                 IsAt(Cargo1, Airport2)
                 & IsAt(Cargo2, Airport2)
                 & IsAt(Cargo3, Airport2)),
-            actions: actionSchemas);
+            actionSchemas: actionSchemas);
     }
 
     public static Problem Problem { get; }
diff --git a/src/SCClassicalPlanning/HashSetState.cs b/src/SCClassicalPlanning/HashSetState.cs
index 4e2da5d..b18e35b 100644
--- a/src/SCClassicalPlanning/HashSetState.cs
+++ b/src/SCClassicalPlanning/HashSetState.cs
@@ -210,7 +210,7 @@ private class StateConstantFinder : RecursiveStateVisitor<HashSet<Constant>>
     }
 
     /// <summary>
-    /// Utility class to find <see cref="Constant"/> instances within the elements of a <see cref="SCClassicalPlanning.Goal"/>, and add them to a given <see cref="HashSet{T}"/>.
+    /// Utility class to find <see cref="Constant"/> instances within the elements of a <see cref="Goal"/>, and add them to a given <see cref="HashSet{T}"/>.
     /// </summary>
     private class GoalConstantFinder : RecursiveGoalVisitor<HashSet<Constant>>
     {
diff --git a/src/SCClassicalPlanning/Planning/Utilities/ProblemInspector.cs b/src/SCClassicalPlanning/Planning/Utilities/ProblemInspector.cs
index c8fa368..afe5de2 100644
--- a/src/SCClassicalPlanning/Planning/Utilities/ProblemInspector.cs
+++ b/src/SCClassicalPlanning/Planning/Utilities/ProblemInspector.cs
@@ -11,7 +11,6 @@
 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 // See the License for the specific language governing permissions and
 // limitations under the License.
-using SCClassicalPlanning.Planning.GraphPlan;
 using SCClassicalPlanning.ProblemManipulation;
 using SCFirstOrderLogic;
 using SCFirstOrderLogic.SentenceManipulation;
diff --git a/src/SCClassicalPlanning/Problem.cs b/src/SCClassicalPlanning/Problem.cs
index 94cf030..9537c8d 100644
--- a/src/SCClassicalPlanning/Problem.cs
+++ b/src/SCClassicalPlanning/Problem.cs
@@ -28,12 +28,12 @@ public class Problem
     /// </summary>
     /// <param name="initialState">The initial state of the problem.</param>
     /// <param name="endGoal">The end goal of the problem.</param>
-    /// <param name="actions">The actions that are available within the problem.</param>
-    public Problem(IState initialState, Goal endGoal, IQueryable<Action> actions)
+    /// <param name="actionSchemas">The schemas of the actions that are available within the problem.</param>
+    public Problem(IState initialState, Goal endGoal, IQueryable<Action> actionSchemas)
     {
         InitialState = initialState;
         EndGoal = endGoal;
-        ActionSchemas = actions;
+        ActionSchemas = actionSchemas;
     }
 
     /// <summary>
@@ -47,7 +47,7 @@ public Problem(IState initialState, Goal endGoal, IQueryable<Action> actions)
     public Goal EndGoal { get; }
 
     /// <summary>
-    /// Gets the actions that are available.
+    /// Gets the schemas of the actions that are available within the problem.
     /// </summary>
     public IQueryable<Action> ActionSchemas { get; }