diff --git a/agents-api/agents_api/autogen/Tasks.py b/agents-api/agents_api/autogen/Tasks.py
index 5fb285ed5..41e9231cc 100644
--- a/agents-api/agents_api/autogen/Tasks.py
+++ b/agents-api/agents_api/autogen/Tasks.py
@@ -686,7 +686,7 @@ class PromptStep(BaseModel):
     """
     The prompt to run
     """
-    tools: Literal["all"] | list[ToolRef | CreateToolRequest] = []
+    tools: Literal["all"] | list[ToolRef | CreateToolRequest] = "all"
     """
     The tools to use for the prompt
     """
@@ -728,7 +728,7 @@ class PromptStepUpdateItem(BaseModel):
     """
     The prompt to run
     """
-    tools: Literal["all"] | list[ToolRefUpdateItem | CreateToolRequest] = []
+    tools: Literal["all"] | list[ToolRefUpdateItem | CreateToolRequest] = "all"
     """
     The tools to use for the prompt
     """
diff --git a/integrations-service/integrations/autogen/Tasks.py b/integrations-service/integrations/autogen/Tasks.py
index 5fb285ed5..41e9231cc 100644
--- a/integrations-service/integrations/autogen/Tasks.py
+++ b/integrations-service/integrations/autogen/Tasks.py
@@ -686,7 +686,7 @@ class PromptStep(BaseModel):
     """
     The prompt to run
     """
-    tools: Literal["all"] | list[ToolRef | CreateToolRequest] = []
+    tools: Literal["all"] | list[ToolRef | CreateToolRequest] = "all"
     """
     The tools to use for the prompt
     """
@@ -728,7 +728,7 @@ class PromptStepUpdateItem(BaseModel):
     """
     The prompt to run
     """
-    tools: Literal["all"] | list[ToolRefUpdateItem | CreateToolRequest] = []
+    tools: Literal["all"] | list[ToolRefUpdateItem | CreateToolRequest] = "all"
     """
     The tools to use for the prompt
     """
diff --git a/typespec/tsp-output/@typespec/openapi3/openapi-1.0.0.yaml b/typespec/tsp-output/@typespec/openapi3/openapi-1.0.0.yaml
index 97dfbf141..8d9b7b541 100644
--- a/typespec/tsp-output/@typespec/openapi3/openapi-1.0.0.yaml
+++ b/typespec/tsp-output/@typespec/openapi3/openapi-1.0.0.yaml
@@ -4845,7 +4845,7 @@ components:
                   - $ref: '#/components/schemas/Tasks.ToolRef'
                   - $ref: '#/components/schemas/Tools.CreateToolRequest'
           description: The tools to use for the prompt
-          default: []
+          default: all
         tool_choice:
           anyOf:
             - type: string
@@ -4976,7 +4976,7 @@ components:
                   - $ref: '#/components/schemas/Tasks.ToolRefUpdateItem'
                   - $ref: '#/components/schemas/Tools.CreateToolRequest'
           description: The tools to use for the prompt
-          default: []
+          default: all
         tool_choice:
           anyOf:
             - type: string