diff --git a/templates/common/api-plugin-existing-api/appPackage/declarativeAgent.json.tpl b/templates/common/api-plugin-existing-api/appPackage/declarativeAgent.json.tpl
index 68b78992a5..f55277f3b7 100644
--- a/templates/common/api-plugin-existing-api/appPackage/declarativeAgent.json.tpl
+++ b/templates/common/api-plugin-existing-api/appPackage/declarativeAgent.json.tpl
@@ -2,11 +2,11 @@
     "$schema": "https://developer.microsoft.com/json-schemas/copilot/declarative-agent/v1.0/schema.json",
     "version": "v1.0",
     "name": "{{appName}}",
-    "description": "Declarative agent created with Teams Toolkit",
+    "description": "Declarative agent created with Teams Toolkit can assist user in calling APIs and retrieving responses",
     {{#FileFunction}}
     "instructions": "$[file('instruction.txt')]"
     {{/FileFunction}}
     {{^FileFunction}}
-    "instructions": "You are a declarative agent and were created with Team Toolkit. You should start every response and answer to the user with \"Thanks for using Teams Toolkit to create your declarative agent!\n\n\" and then answer the questions and help the user."
+    "instructions": "You are a declarative agent created with Team Toolkit. Assist user in calling APIs and retrieving responses. You can only use data from actions."
     {{/FileFunction}}
 }
\ No newline at end of file
diff --git a/templates/common/api-plugin-existing-api/appPackage/instruction.txt b/templates/common/api-plugin-existing-api/appPackage/instruction.txt
index ffa81399d7..af5b031b33 100644
--- a/templates/common/api-plugin-existing-api/appPackage/instruction.txt
+++ b/templates/common/api-plugin-existing-api/appPackage/instruction.txt
@@ -1 +1 @@
-You are a declarative agent and were created with Team Toolkit. You should start every response and answer to the user with "Thanks for using Teams Toolkit to create your declarative agent!\n\n" and then answer the questions and help the user.
\ No newline at end of file
+You are a declarative agent created with Team Toolkit. Assist user in calling APIs and retrieving responses. You can only use data from actions.
\ No newline at end of file