diff --git a/src/lib/agents/search/researcher/actions/academicSearch.ts b/src/lib/agents/search/researcher/actions/academicSearch.ts
index 72e1f4b14..949bf9b08 100644
--- a/src/lib/agents/search/researcher/actions/academicSearch.ts
+++ b/src/lib/agents/search/researcher/actions/academicSearch.ts
@@ -30,7 +30,7 @@ const academicSearchAction: ResearchAction<typeof schema> = {
     config.classification.classification.skipSearch === false &&
     config.classification.classification.academicSearch === true,
   execute: async (input, additionalConfig) => {
-    input.queries = input.queries.slice(0, 3);
+    input.queries = (input.queries ?? []).slice(0, 3);
 
     const researchBlock = additionalConfig.session.getBlock(
       additionalConfig.researchBlockId,
diff --git a/src/lib/agents/search/researcher/actions/scrapeURL.ts b/src/lib/agents/search/researcher/actions/scrapeURL.ts
index c702a7014..4145a5b77 100644
--- a/src/lib/agents/search/researcher/actions/scrapeURL.ts
+++ b/src/lib/agents/search/researcher/actions/scrapeURL.ts
@@ -25,7 +25,7 @@ const scrapeURLAction: ResearchAction<typeof schema> = {
   getDescription: () => actionDescription,
   enabled: (_) => true,
   execute: async (params, additionalConfig) => {
-    params.urls = params.urls.slice(0, 3);
+    params.urls = (params.urls ?? []).slice(0, 3);
 
     let readingBlockId = crypto.randomUUID();
     let readingEmitted = false;
diff --git a/src/lib/agents/search/researcher/actions/socialSearch.ts b/src/lib/agents/search/researcher/actions/socialSearch.ts
index 16468ab4c..92b7975a7 100644
--- a/src/lib/agents/search/researcher/actions/socialSearch.ts
+++ b/src/lib/agents/search/researcher/actions/socialSearch.ts
@@ -30,7 +30,7 @@ const socialSearchAction: ResearchAction<typeof schema> = {
     config.classification.classification.skipSearch === false &&
     config.classification.classification.discussionSearch === true,
   execute: async (input, additionalConfig) => {
-    input.queries = input.queries.slice(0, 3);
+    input.queries = (input.queries ?? []).slice(0, 3);
 
     const researchBlock = additionalConfig.session.getBlock(
       additionalConfig.researchBlockId,
diff --git a/src/lib/agents/search/researcher/actions/uploadsSearch.ts b/src/lib/agents/search/researcher/actions/uploadsSearch.ts
index 819506395..3fd4ad3b4 100644
--- a/src/lib/agents/search/researcher/actions/uploadsSearch.ts
+++ b/src/lib/agents/search/researcher/actions/uploadsSearch.ts
@@ -27,7 +27,7 @@ const uploadsSearchAction: ResearchAction<typeof schema> = {
   Never use this tool to search the web or for information that is not contained within the user's uploaded files.
   `,
   execute: async (input, additionalConfig) => {
-    input.queries = input.queries.slice(0, 3);
+    input.queries = (input.queries ?? []).slice(0, 3);
 
     const researchBlock = additionalConfig.session.getBlock(
       additionalConfig.researchBlockId,
diff --git a/src/lib/agents/search/researcher/actions/webSearch.ts b/src/lib/agents/search/researcher/actions/webSearch.ts
index 4d60b79f2..9c832bcf0 100644
--- a/src/lib/agents/search/researcher/actions/webSearch.ts
+++ b/src/lib/agents/search/researcher/actions/webSearch.ts
@@ -85,7 +85,7 @@ const webSearchAction: ResearchAction<typeof actionSchema> = {
     config.sources.includes('web') &&
     config.classification.classification.skipSearch === false,
   execute: async (input, additionalConfig) => {
-    input.queries = input.queries.slice(0, 3);
+    input.queries = (input.queries ?? []).slice(0, 3);
 
     const researchBlock = additionalConfig.session.getBlock(
       additionalConfig.researchBlockId,