diff --git a/server/utils/agents/aibitat/providers/anthropic.js b/server/utils/agents/aibitat/providers/anthropic.js
index b69b14d6..fd70b23f 100644
--- a/server/utils/agents/aibitat/providers/anthropic.js
+++ b/server/utils/agents/aibitat/providers/anthropic.js
@@ -116,7 +116,7 @@ class AnthropicProvider extends Provider {
    * @param functions
    * @returns The completion.
    */
-  async complete(messages, functions = null) {
+  async complete(messages, functions = []) {
     try {
       const [systemPrompt, chats] = this.#parseSystemPrompt(messages);
       const response = await this.client.messages.create(
diff --git a/server/utils/agents/aibitat/providers/apipie.js b/server/utils/agents/aibitat/providers/apipie.js
index 4c6a3c8b..8e342ec9 100644
--- a/server/utils/agents/aibitat/providers/apipie.js
+++ b/server/utils/agents/aibitat/providers/apipie.js
@@ -53,7 +53,7 @@ class ApiPieProvider extends InheritMultiple([Provider, UnTooled]) {
    * @param functions
    * @returns The completion.
    */
-  async complete(messages, functions = null) {
+  async complete(messages, functions = []) {
     try {
       let completion;
       if (functions.length > 0) {
diff --git a/server/utils/agents/aibitat/providers/azure.js b/server/utils/agents/aibitat/providers/azure.js
index 0ecc398f..a0e94e31 100644
--- a/server/utils/agents/aibitat/providers/azure.js
+++ b/server/utils/agents/aibitat/providers/azure.js
@@ -48,7 +48,7 @@ class AzureOpenAiProvider extends InheritMultiple([Provider, UnTooled]) {
    * @param functions
    * @returns The completion.
    */
-  async complete(messages, functions = null) {
+  async complete(messages, functions = []) {
     try {
       let completion;
       if (functions.length > 0) {
diff --git a/server/utils/agents/aibitat/providers/bedrock.js b/server/utils/agents/aibitat/providers/bedrock.js
index 6cdb9289..e3863298 100644
--- a/server/utils/agents/aibitat/providers/bedrock.js
+++ b/server/utils/agents/aibitat/providers/bedrock.js
@@ -89,7 +89,7 @@ class AWSBedrockProvider extends InheritMultiple([Provider, UnTooled]) {
    * @param functions
    * @returns The completion.
    */
-  async complete(messages, functions = null) {
+  async complete(messages, functions = []) {
     try {
       let completion;
       if (functions.length > 0) {
diff --git a/server/utils/agents/aibitat/providers/deepseek.js b/server/utils/agents/aibitat/providers/deepseek.js
index aec1ee39..ca74d58c 100644
--- a/server/utils/agents/aibitat/providers/deepseek.js
+++ b/server/utils/agents/aibitat/providers/deepseek.js
@@ -55,7 +55,7 @@ class DeepSeekProvider extends InheritMultiple([Provider, UnTooled]) {
    * @param functions
    * @returns The completion.
    */
-  async complete(messages, functions = null) {
+  async complete(messages, functions = []) {
     try {
       let completion;
       if (functions.length > 0) {
diff --git a/server/utils/agents/aibitat/providers/fireworksai.js b/server/utils/agents/aibitat/providers/fireworksai.js
index 5802fc6d..7c40d6e7 100644
--- a/server/utils/agents/aibitat/providers/fireworksai.js
+++ b/server/utils/agents/aibitat/providers/fireworksai.js
@@ -55,7 +55,7 @@ class FireworksAIProvider extends InheritMultiple([Provider, UnTooled]) {
    * @param functions
    * @returns The completion.
    */
-  async complete(messages, functions = null) {
+  async complete(messages, functions = []) {
     try {
       let completion;
       if (functions.length > 0) {
diff --git a/server/utils/agents/aibitat/providers/genericOpenAi.js b/server/utils/agents/aibitat/providers/genericOpenAi.js
index 9a753ca2..c902dcb7 100644
--- a/server/utils/agents/aibitat/providers/genericOpenAi.js
+++ b/server/utils/agents/aibitat/providers/genericOpenAi.js
@@ -61,7 +61,7 @@ class GenericOpenAiProvider extends InheritMultiple([Provider, UnTooled]) {
    * @param functions
    * @returns The completion.
    */
-  async complete(messages, functions = null) {
+  async complete(messages, functions = []) {
     try {
       let completion;
       if (functions.length > 0) {
diff --git a/server/utils/agents/aibitat/providers/groq.js b/server/utils/agents/aibitat/providers/groq.js
index 9ca99065..f66dc27d 100644
--- a/server/utils/agents/aibitat/providers/groq.js
+++ b/server/utils/agents/aibitat/providers/groq.js
@@ -54,7 +54,7 @@ class GroqProvider extends InheritMultiple([Provider, UnTooled]) {
    * @param functions
    * @returns The completion.
    */
-  async complete(messages, functions = null) {
+  async complete(messages, functions = []) {
     try {
       let completion;
       if (functions.length > 0) {
diff --git a/server/utils/agents/aibitat/providers/koboldcpp.js b/server/utils/agents/aibitat/providers/koboldcpp.js
index 2dd12784..34eafe0e 100644
--- a/server/utils/agents/aibitat/providers/koboldcpp.js
+++ b/server/utils/agents/aibitat/providers/koboldcpp.js
@@ -53,7 +53,7 @@ class KoboldCPPProvider extends InheritMultiple([Provider, UnTooled]) {
    * @param functions
    * @returns The completion.
    */
-  async complete(messages, functions = null) {
+  async complete(messages, functions = []) {
     try {
       let completion;
       if (functions.length > 0) {
diff --git a/server/utils/agents/aibitat/providers/litellm.js b/server/utils/agents/aibitat/providers/litellm.js
index ad489c26..9cc8a4c3 100644
--- a/server/utils/agents/aibitat/providers/litellm.js
+++ b/server/utils/agents/aibitat/providers/litellm.js
@@ -53,7 +53,7 @@ class LiteLLMProvider extends InheritMultiple([Provider, UnTooled]) {
    * @param functions
    * @returns The completion.
    */
-  async complete(messages, functions = null) {
+  async complete(messages, functions = []) {
     try {
       let completion;
       if (functions.length > 0) {
diff --git a/server/utils/agents/aibitat/providers/lmstudio.js b/server/utils/agents/aibitat/providers/lmstudio.js
index ec9be89c..f783ade9 100644
--- a/server/utils/agents/aibitat/providers/lmstudio.js
+++ b/server/utils/agents/aibitat/providers/lmstudio.js
@@ -61,7 +61,7 @@ class LMStudioProvider extends InheritMultiple([Provider, UnTooled]) {
    * @param functions
    * @returns The completion.
    */
-  async complete(messages, functions = null) {
+  async complete(messages, functions = []) {
     try {
       let completion;
       if (functions.length > 0) {
diff --git a/server/utils/agents/aibitat/providers/localai.js b/server/utils/agents/aibitat/providers/localai.js
index bd0c3b52..38c41778 100644
--- a/server/utils/agents/aibitat/providers/localai.js
+++ b/server/utils/agents/aibitat/providers/localai.js
@@ -55,7 +55,7 @@ class LocalAiProvider extends InheritMultiple([Provider, UnTooled]) {
    * @param functions
    * @returns The completion.
    */
-  async complete(messages, functions = null) {
+  async complete(messages, functions = []) {
     try {
       let completion;
 
diff --git a/server/utils/agents/aibitat/providers/mistral.js b/server/utils/agents/aibitat/providers/mistral.js
index aa2c1c6e..a2595662 100644
--- a/server/utils/agents/aibitat/providers/mistral.js
+++ b/server/utils/agents/aibitat/providers/mistral.js
@@ -57,7 +57,7 @@ class MistralProvider extends InheritMultiple([Provider, UnTooled]) {
    * @param functions
    * @returns The completion.
    */
-  async complete(messages, functions = null) {
+  async complete(messages, functions = []) {
     try {
       let completion;
       if (functions.length > 0) {
diff --git a/server/utils/agents/aibitat/providers/novita.js b/server/utils/agents/aibitat/providers/novita.js
index 9cdffb80..a15a6eb9 100644
--- a/server/utils/agents/aibitat/providers/novita.js
+++ b/server/utils/agents/aibitat/providers/novita.js
@@ -57,7 +57,7 @@ class NovitaProvider extends InheritMultiple([Provider, UnTooled]) {
    * @param functions
    * @returns The completion.
    */
-  async complete(messages, functions = null) {
+  async complete(messages, functions = []) {
     let completion;
     if (functions.length > 0) {
       const { toolCall, text } = await this.functionCall(
diff --git a/server/utils/agents/aibitat/providers/nvidiaNim.js b/server/utils/agents/aibitat/providers/nvidiaNim.js
index 6e1bc695..529d21cd 100644
--- a/server/utils/agents/aibitat/providers/nvidiaNim.js
+++ b/server/utils/agents/aibitat/providers/nvidiaNim.js
@@ -54,7 +54,7 @@ class NvidiaNimProvider extends InheritMultiple([Provider, UnTooled]) {
    * @param functions
    * @returns The completion.
    */
-  async complete(messages, functions = null) {
+  async complete(messages, functions = []) {
     try {
       let completion;
       if (functions.length > 0) {
diff --git a/server/utils/agents/aibitat/providers/ollama.js b/server/utils/agents/aibitat/providers/ollama.js
index 5261c5b7..9080cd77 100644
--- a/server/utils/agents/aibitat/providers/ollama.js
+++ b/server/utils/agents/aibitat/providers/ollama.js
@@ -49,7 +49,7 @@ class OllamaProvider extends InheritMultiple([Provider, UnTooled]) {
    * @param functions
    * @returns The completion.
    */
-  async complete(messages, functions = null) {
+  async complete(messages, functions = []) {
     try {
       let completion;
       if (functions.length > 0) {
diff --git a/server/utils/agents/aibitat/providers/openai.js b/server/utils/agents/aibitat/providers/openai.js
index 04e3af03..73976bcb 100644
--- a/server/utils/agents/aibitat/providers/openai.js
+++ b/server/utils/agents/aibitat/providers/openai.js
@@ -62,7 +62,7 @@ class OpenAIProvider extends Provider {
    * @param functions
    * @returns The completion.
    */
-  async complete(messages, functions = null) {
+  async complete(messages, functions = []) {
     try {
       const response = await this.client.chat.completions.create({
         model: this.model,
diff --git a/server/utils/agents/aibitat/providers/openrouter.js b/server/utils/agents/aibitat/providers/openrouter.js
index 70716d3a..c7d8dc73 100644
--- a/server/utils/agents/aibitat/providers/openrouter.js
+++ b/server/utils/agents/aibitat/providers/openrouter.js
@@ -57,7 +57,7 @@ class OpenRouterProvider extends InheritMultiple([Provider, UnTooled]) {
    * @param functions
    * @returns The completion.
    */
-  async complete(messages, functions = null) {
+  async complete(messages, functions = []) {
     try {
       let completion;
       if (functions.length > 0) {
diff --git a/server/utils/agents/aibitat/providers/perplexity.js b/server/utils/agents/aibitat/providers/perplexity.js
index 07220695..03fec91e 100644
--- a/server/utils/agents/aibitat/providers/perplexity.js
+++ b/server/utils/agents/aibitat/providers/perplexity.js
@@ -53,7 +53,7 @@ class PerplexityProvider extends InheritMultiple([Provider, UnTooled]) {
    * @param functions
    * @returns The completion.
    */
-  async complete(messages, functions = null) {
+  async complete(messages, functions = []) {
     try {
       let completion;
       if (functions.length > 0) {
diff --git a/server/utils/agents/aibitat/providers/textgenwebui.js b/server/utils/agents/aibitat/providers/textgenwebui.js
index 7ef1cf4c..b55560b7 100644
--- a/server/utils/agents/aibitat/providers/textgenwebui.js
+++ b/server/utils/agents/aibitat/providers/textgenwebui.js
@@ -52,7 +52,7 @@ class TextWebGenUiProvider extends InheritMultiple([Provider, UnTooled]) {
    * @param functions
    * @returns The completion.
    */
-  async complete(messages, functions = null) {
+  async complete(messages, functions = []) {
     try {
       let completion;
       if (functions.length > 0) {
diff --git a/server/utils/agents/aibitat/providers/togetherai.js b/server/utils/agents/aibitat/providers/togetherai.js
index 78cbb512..efad3922 100644
--- a/server/utils/agents/aibitat/providers/togetherai.js
+++ b/server/utils/agents/aibitat/providers/togetherai.js
@@ -53,7 +53,7 @@ class TogetherAIProvider extends InheritMultiple([Provider, UnTooled]) {
    * @param functions
    * @returns The completion.
    */
-  async complete(messages, functions = null) {
+  async complete(messages, functions = []) {
     try {
       let completion;
       if (functions.length > 0) {
diff --git a/server/utils/agents/aibitat/providers/xai.js b/server/utils/agents/aibitat/providers/xai.js
index 9461d865..683e6aa4 100644
--- a/server/utils/agents/aibitat/providers/xai.js
+++ b/server/utils/agents/aibitat/providers/xai.js
@@ -53,7 +53,7 @@ class XAIProvider extends InheritMultiple([Provider, UnTooled]) {
    * @param functions
    * @returns The completion.
    */
-  async complete(messages, functions = null) {
+  async complete(messages, functions = []) {
     try {
       let completion;
       if (functions.length > 0) {