diff --git a/.eslintrc.cjs b/.eslintrc.cjs
index c6b11d3..e68e9a7 100644
--- a/.eslintrc.cjs
+++ b/.eslintrc.cjs
@@ -30,7 +30,6 @@ const config = {
         fixStyle: "inline-type-imports",
       },
     ],
-    "@typescript-eslint/no-unused-vars": ["warn", { argsIgnorePattern: "^_" }],
 
     "unused-imports/no-unused-imports": "error",
     "unused-imports/no-unused-vars": [
diff --git a/src/components/OutputsTable/NewScenarioButton.tsx b/src/components/OutputsTable/NewScenarioButton.tsx
index 590868e..ce3e9c2 100644
--- a/src/components/OutputsTable/NewScenarioButton.tsx
+++ b/src/components/OutputsTable/NewScenarioButton.tsx
@@ -9,8 +9,9 @@ export default function NewScenarioButton() {
   const utils = api.useContext();
 
   const [onClick] = useHandledAsyncCallback(async () => {
+    if (!experiment.data) return;
     await mutation.mutateAsync({
-      experimentId: experiment.data!.id,
+      experimentId: experiment.data.id,
     });
     await utils.scenarios.list.invalidate();
   }, [mutation]);
diff --git a/src/server/api/routers/scenarios.router.ts b/src/server/api/routers/scenarios.router.ts
index e574bb3..3cc6f00 100644
--- a/src/server/api/routers/scenarios.router.ts
+++ b/src/server/api/routers/scenarios.router.ts
@@ -34,7 +34,7 @@ export const scenariosRouter = createTRPCRouter({
           })
         )._max.sortIndex ?? 0;
 
-      const newScenario = await prisma.testScenario.create({
+      await prisma.testScenario.create({
         data: {
           experimentId: input.experimentId,
           sortIndex: maxSortIndex + 1,
diff --git a/src/utils/hooks.ts b/src/utils/hooks.ts
index 29a033a..da74cc3 100644
--- a/src/utils/hooks.ts
+++ b/src/utils/hooks.ts
@@ -12,7 +12,7 @@ export const useExperiment = () => {
   return experiment;
 };
 
-export function useHandledAsyncCallback<T extends (...args: any[]) => Promise<any>>(
+export function useHandledAsyncCallback<T extends (...args: unknown[]) => Promise<unknown>>(
   callback: T,
   deps: React.DependencyList
 ) {
@@ -31,6 +31,7 @@ export function useHandledAsyncCallback<T extends (...args: any[]) => Promise<an
       .finally(() => {
         setLoading(false);
       });
+    /* eslint-disable react-hooks/exhaustive-deps */
   }, deps);
 
   return [wrappedCallback, loading, error] as const;