diff --git a/src/graphql/generated.ts b/src/graphql/generated.ts
index 13c4580f..454150be 100644
--- a/src/graphql/generated.ts
+++ b/src/graphql/generated.ts
@@ -1462,7 +1462,7 @@ export type CreateDomainInput = {
   isRoot: Scalars['Boolean'];
   nativeFundingPotId: Scalars['Int'];
   nativeId: Scalars['Int'];
-  nativeSkillId: Scalars['Int'];
+  nativeSkillId: Scalars['String'];
   reputation?: InputMaybe<Scalars['String']>;
   reputationPercentage?: InputMaybe<Scalars['String']>;
 };
@@ -1890,7 +1890,7 @@ export type Domain = {
    * Native skill ID of the Domain
    * The native skill ID is assigned to a domain from the contract on creation
    */
-  nativeSkillId: Scalars['Int'];
+  nativeSkillId: Scalars['String'];
   /** The amount of reputation in the domain */
   reputation?: Maybe<Scalars['String']>;
   /** The amount of reputation in the domain, as a percentage of the total in the colony */
@@ -3095,7 +3095,7 @@ export type ModelDomainConditionInput = {
   isRoot?: InputMaybe<ModelBooleanInput>;
   nativeFundingPotId?: InputMaybe<ModelIntInput>;
   nativeId?: InputMaybe<ModelIntInput>;
-  nativeSkillId?: InputMaybe<ModelIntInput>;
+  nativeSkillId?: InputMaybe<ModelStringInput>;
   not?: InputMaybe<ModelDomainConditionInput>;
   or?: InputMaybe<Array<InputMaybe<ModelDomainConditionInput>>>;
   reputation?: InputMaybe<ModelStringInput>;
@@ -3115,7 +3115,7 @@ export type ModelDomainFilterInput = {
   isRoot?: InputMaybe<ModelBooleanInput>;
   nativeFundingPotId?: InputMaybe<ModelIntInput>;
   nativeId?: InputMaybe<ModelIntInput>;
-  nativeSkillId?: InputMaybe<ModelIntInput>;
+  nativeSkillId?: InputMaybe<ModelStringInput>;
   not?: InputMaybe<ModelDomainFilterInput>;
   or?: InputMaybe<Array<InputMaybe<ModelDomainFilterInput>>>;
   reputation?: InputMaybe<ModelStringInput>;
@@ -3996,7 +3996,7 @@ export type ModelSubscriptionDomainFilterInput = {
   isRoot?: InputMaybe<ModelSubscriptionBooleanInput>;
   nativeFundingPotId?: InputMaybe<ModelSubscriptionIntInput>;
   nativeId?: InputMaybe<ModelSubscriptionIntInput>;
-  nativeSkillId?: InputMaybe<ModelSubscriptionIntInput>;
+  nativeSkillId?: InputMaybe<ModelSubscriptionStringInput>;
   or?: InputMaybe<Array<InputMaybe<ModelSubscriptionDomainFilterInput>>>;
   reputation?: InputMaybe<ModelSubscriptionStringInput>;
   reputationPercentage?: InputMaybe<ModelSubscriptionStringInput>;
@@ -6156,7 +6156,7 @@ export type QueryGetDomainByNativeSkillIdArgs = {
   filter?: InputMaybe<ModelDomainFilterInput>;
   limit?: InputMaybe<Scalars['Int']>;
   nativeId?: InputMaybe<ModelIntKeyConditionInput>;
-  nativeSkillId: Scalars['Int'];
+  nativeSkillId: Scalars['String'];
   nextToken?: InputMaybe<Scalars['String']>;
   sortDirection?: InputMaybe<ModelSortDirection>;
 };
@@ -8327,7 +8327,7 @@ export type UpdateDomainInput = {
   isRoot?: InputMaybe<Scalars['Boolean']>;
   nativeFundingPotId?: InputMaybe<Scalars['Int']>;
   nativeId?: InputMaybe<Scalars['Int']>;
-  nativeSkillId?: InputMaybe<Scalars['Int']>;
+  nativeSkillId?: InputMaybe<Scalars['String']>;
   reputation?: InputMaybe<Scalars['String']>;
   reputationPercentage?: InputMaybe<Scalars['String']>;
 };
@@ -8769,7 +8769,7 @@ export type ColonyFragment = {
     items: Array<{
       __typename?: 'Domain';
       id: string;
-      nativeSkillId: number;
+      nativeSkillId: string;
     } | null>;
   } | null;
 };
@@ -9682,7 +9682,7 @@ export type GetColonyQuery = {
       items: Array<{
         __typename?: 'Domain';
         id: string;
-        nativeSkillId: number;
+        nativeSkillId: string;
       } | null>;
     } | null;
   } | null;
@@ -9820,7 +9820,7 @@ export type GetDomainMetadataQuery = {
 };
 
 export type GetDomainByNativeSkillIdQueryVariables = Exact<{
-  nativeSkillId: Scalars['Int'];
+  nativeSkillId: Scalars['String'];
 }>;
 
 export type GetDomainByNativeSkillIdQuery = {
@@ -9830,7 +9830,7 @@ export type GetDomainByNativeSkillIdQuery = {
     items: Array<{
       __typename?: 'Domain';
       id: string;
-      nativeSkillId: number;
+      nativeSkillId: string;
       nativeId: number;
     } | null>;
   } | null;
@@ -11267,7 +11267,7 @@ export const GetDomainMetadataDocument = gql`
   }
 `;
 export const GetDomainByNativeSkillIdDocument = gql`
-  query GetDomainByNativeSkillId($nativeSkillId: Int!) {
+  query GetDomainByNativeSkillId($nativeSkillId: String!) {
     getDomainByNativeSkillId(nativeSkillId: $nativeSkillId) {
       items {
         id
diff --git a/src/graphql/queries/domain.graphql b/src/graphql/queries/domain.graphql
index c953edc6..dcf0b23e 100644
--- a/src/graphql/queries/domain.graphql
+++ b/src/graphql/queries/domain.graphql
@@ -16,7 +16,7 @@ query GetDomainMetadata($id: ID!) {
   }
 }
 
-query GetDomainByNativeSkillId($nativeSkillId: Int!) {
+query GetDomainByNativeSkillId($nativeSkillId: String!) {
   getDomainByNativeSkillId(nativeSkillId: $nativeSkillId) {
     items {
       id
diff --git a/src/handlers/multiSig/multiSigCreated/helpers.ts b/src/handlers/multiSig/multiSigCreated/helpers.ts
index cc390b13..989b03a9 100644
--- a/src/handlers/multiSig/multiSigCreated/helpers.ts
+++ b/src/handlers/multiSig/multiSigCreated/helpers.ts
@@ -140,7 +140,7 @@ export const getMultiSigData = async ({
 };
 
 const getDomainIdByNativeSkillId = async (
-  nativeSkillId: number,
+  nativeSkillId: string,
 ): Promise<number | null> => {
   const result = await query<
     GetDomainByNativeSkillIdQuery,
@@ -192,7 +192,7 @@ export const createMultiSigInDB = async (
   const motion = await multiSigClient.getMotion(multiSigId);
 
   const domainId = await getDomainIdByNativeSkillId(
-    motion.domainSkillId.toNumber(),
+    motion.domainSkillId.toString(),
   );
 
   if (domainId === null) {
diff --git a/src/utils/events.ts b/src/utils/events.ts
index e8a09e4a..dac27aae 100644
--- a/src/utils/events.ts
+++ b/src/utils/events.ts
@@ -114,7 +114,7 @@ export const saveEvent = async (event: ContractEvent): Promise<void> => {
     id: `${chainId}_${transactionHash}_${logIndex}`,
     agent: parsedArgs?.agent || contractAddress,
     chainMetadata: {
-      chainId: Number(chainId), // @TODO why did this change?
+      chainId,
       transactionHash,
       logIndex,
       blockNumber,
diff --git a/src/utils/permissions.ts b/src/utils/permissions.ts
index bd8d776e..fd194484 100644
--- a/src/utils/permissions.ts
+++ b/src/utils/permissions.ts
@@ -592,11 +592,9 @@ export const createInitialMultiSigRolesDatabaseEntry = async (
     contributorAddress: targetAddress,
   });
 
-  const installedExtensions = new Set(
-    await getExtensionInstallations(colonyAddress),
-  );
+  const isExtension = await isAddressExtension(targetAddress);
 
-  if (!isContributor && !installedExtensions.has(targetAddress)) {
+  if (!isContributor && !isExtension) {
     await createColonyContributor({
       colonyAddress,
       contributorAddress: targetAddress,