diff --git a/src/actions/getMaxTimeVariation.ts b/src/actions/getMaxTimeVariation.ts
index 9e6c9a5e..32b074f3 100644
--- a/src/actions/getMaxTimeVariation.ts
+++ b/src/actions/getMaxTimeVariation.ts
@@ -1,32 +1,35 @@
-import { Chain, GetFunctionArgs, PublicClient, ReadContractReturnType, Transport } from 'viem';
+import { Address, Chain, PublicClient, Transport } from 'viem';
 import { sequencerInbox } from '../contracts';
-import { ActionParameters, WithContractAddress } from '../types/Actions';
+import { ActionParameters } from '../types/Actions';
 
-type Args = GetFunctionArgs<SequencerInboxABI, 'maxTimeVariation'>;
-type SequencerInboxABI = typeof sequencerInbox.abi;
-type GetMaxTimeVariationParameters<Curried extends boolean = false> = WithContractAddress<
-  Args,
-  'sequencerInbox',
-  Curried
->;
 export type GetMaxTimeVariationActionParameters<Curried extends boolean> = ActionParameters<
-  Args,
+  {},
   'sequencerInbox',
   Curried
 >;
 
-export type GetMaxTimeVariationReturnType = ReadContractReturnType<
-  SequencerInboxABI,
-  'maxTimeVariation'
->;
+export type GetMaxTimeVariationReturnType = {
+  delayBlocks: bigint;
+  futureBlocks: bigint;
+  delaySeconds: bigint;
+  futureSeconds: bigint;
+};
 
 export async function getMaxTimeVariation<TChain extends Chain | undefined>(
   client: PublicClient<Transport, TChain>,
-  args: GetMaxTimeVariationParameters,
+  args: {
+    sequencerInbox: Address;
+  },
 ): Promise<GetMaxTimeVariationReturnType> {
-  return client.readContract({
+  const [delayBlocks, futureBlocks, delaySeconds, futureSeconds] = await client.readContract({
     abi: sequencerInbox.abi,
     functionName: 'maxTimeVariation',
     address: args.sequencerInbox,
   });
+  return {
+    delayBlocks,
+    futureBlocks,
+    delaySeconds,
+    futureSeconds,
+  };
 }
diff --git a/src/actions/isBatchPoster.ts b/src/actions/isBatchPoster.ts
index 3ba862d7..bf4a24b6 100644
--- a/src/actions/isBatchPoster.ts
+++ b/src/actions/isBatchPoster.ts
@@ -1,8 +1,10 @@
-import { Chain, GetFunctionArgs, PublicClient, ReadContractReturnType, Transport } from 'viem';
+import { Address, Chain, PublicClient, ReadContractReturnType, Transport } from 'viem';
 import { sequencerInbox } from '../contracts';
 import { ActionParameters, WithContractAddress } from '../types/Actions';
 
-type Args = GetFunctionArgs<SequencerInboxABI, 'isBatchPoster'>;
+type Args = {
+  batchPoster: Address;
+};
 type SequencerInboxABI = typeof sequencerInbox.abi;
 type IsBatchPosterParameters<Curried extends boolean = false> = WithContractAddress<
   Args,
@@ -25,6 +27,6 @@ export async function isBatchPoster<TChain extends Chain | undefined>(
     abi: sequencerInbox.abi,
     functionName: 'isBatchPoster',
     address: args.sequencerInbox,
-    args: args.args,
+    args: [args.batchPoster],
   });
 }
diff --git a/src/actions/isValidKeysetHash.ts b/src/actions/isValidKeysetHash.ts
index 6808bc2c..20360a03 100644
--- a/src/actions/isValidKeysetHash.ts
+++ b/src/actions/isValidKeysetHash.ts
@@ -1,8 +1,10 @@
-import { Chain, GetFunctionArgs, PublicClient, ReadContractReturnType, Transport } from 'viem';
+import { Chain, Hex, PublicClient, ReadContractReturnType, Transport } from 'viem';
 import { sequencerInbox } from '../contracts';
 import { ActionParameters, WithContractAddress } from '../types/Actions';
 
-type Args = GetFunctionArgs<SequencerInboxABI, 'isValidKeysetHash'>;
+type Args = {
+  keysetHash: Hex;
+};
 type SequencerInboxABI = typeof sequencerInbox.abi;
 type IsValidKeysetHashParameters<Curried extends boolean = false> = WithContractAddress<
   Args,
@@ -28,6 +30,6 @@ export async function isValidKeysetHash<TChain extends Chain | undefined>(
     abi: sequencerInbox.abi,
     functionName: 'isValidKeysetHash',
     address: args.sequencerInbox,
-    args: args.args,
+    args: [args.keysetHash],
   });
 }