diff --git a/src/actions/addSequencerL2Batch.ts b/src/actions/addSequencerL2Batch.ts
index c288862c..37477077 100644
--- a/src/actions/addSequencerL2Batch.ts
+++ b/src/actions/addSequencerL2Batch.ts
@@ -9,14 +9,15 @@ import {
 } from 'viem';
 import { sequencerInbox } from '../contracts';
 import { WithContractAddress, ActionParameters, WithAccount } from '../types/Actions';
+import { Prettify } from '../types/utils';
 
 type Args = GetFunctionArgs<SequencerInboxABI, 'addSequencerL2Batch'>;
 type SequencerInboxABI = typeof sequencerInbox.abi;
-type BuildAddSequencerL2BatchParameters<Curried extends boolean = false> = WithAccount<
-  WithContractAddress<Args, 'sequencerInbox', Curried>
+type BuildAddSequencerL2BatchParameters<Curried extends boolean = false> = Prettify<
+  WithAccount<WithContractAddress<Args, 'sequencerInbox', Curried>>
 >;
-export type BuildAddSequencerL2BatchActionParameters<Curried extends boolean> = WithAccount<
-  ActionParameters<Args, 'sequencerInbox', Curried>
+export type BuildAddSequencerL2BatchActionParameters<Curried extends boolean> = Prettify<
+  WithAccount<ActionParameters<Args, 'sequencerInbox', Curried>>
 >;
 
 export type BuildAddSequencerL2BatchReturnType = PrepareTransactionRequestReturnType;
diff --git a/src/types/Actions.ts b/src/types/Actions.ts
new file mode 100644
index 00000000..c1bc3edc
--- /dev/null
+++ b/src/types/Actions.ts
@@ -0,0 +1,49 @@
+import { Address } from 'viem';
+import { Prettify } from './utils';
+
+type RemoveUndefinedArgs<T> = T extends { args?: undefined } ? Omit<T, 'args'> : T;
+
+/**
+ * If the function has no args, `GetFunctionArgs` returns `{ args?: undefined }`
+ * we remove args from the returned type
+ *
+ * Contract address is required if no contract address was passed to the actions, otherwise it's optional
+ */
+export type WithContractAddress<
+  Args,
+  ContractName extends string,
+  Curried extends boolean = false,
+> = Prettify<
+  RemoveUndefinedArgs<
+    Args &
+      (Curried extends true
+        ? {
+            [key in ContractName]?: Address;
+          }
+        : { [key in ContractName]: Address })
+  >
+>;
+
+/**
+ * Actions require contract address, but as part of decorators, the address might have been passed already to the decorator.
+ *
+ * If the address was passed to the decorator, it's now optional (we still allow overrides of the address per action).
+ * If the action doesn't have any other parameters beside the contract address, then parameters can either be { contract: address } or void
+ */
+export type ActionParameters<Args, ContractName extends string, Curried extends boolean> = Prettify<
+  Curried extends false
+    ? RemoveUndefinedArgs<Args & { sequencerInbox: Address }>
+    : Args extends { args?: undefined }
+    ?
+        | {
+            [key in ContractName]: Address;
+          }
+        | void
+    : Args & {
+        [key in ContractName]?: Address;
+      }
+>;
+
+export type WithAccount<Args> = Args & {
+  account: Address;
+};