diff --git a/lib/crewai/src/crewai/agent/core.py b/lib/crewai/src/crewai/agent/core.py
index 5751f3a9a..b796ed0f2 100644
--- a/lib/crewai/src/crewai/agent/core.py
+++ b/lib/crewai/src/crewai/agent/core.py
@@ -1129,15 +1129,32 @@ class Agent(BaseAgent):
         return agent_tools.tools()
 
     def get_platform_tools(self, apps: list[PlatformAppOrAction]) -> list[BaseTool]:
+        platform_tools: list[BaseTool] = []
         try:
             from crewai_tools import (
                 CrewaiPlatformTools,
             )
 
-            return CrewaiPlatformTools(apps=apps)
+            platform_tools = CrewaiPlatformTools(apps=apps)
         except Exception as e:
             self._logger.log("error", f"Error getting platform tools: {e!s}")
-            return []
+
+        if apps and not platform_tools:
+            # A non-empty `apps` that resolves to zero tools leaves the agent
+            # unable to do what those apps were for — surface it loudly (the
+            # underlying resolver only logs, and Logger.log is verbose-gated) so
+            # it isn't discovered as a mysterious runtime failure.
+            app_names = ", ".join(str(app) for app in apps)
+            warnings.warn(
+                f"Agent '{self.role}' declares apps [{app_names}] but none "
+                "resolved to any tools; the agent will run without them and may "
+                "be unable to complete its goal. Check that these apps exist and "
+                "are connected, and that CREWAI_PLATFORM_INTEGRATION_TOKEN is set.",
+                UserWarning,
+                stacklevel=2,
+            )
+
+        return platform_tools
 
     def get_mcp_tools(self, mcps: list[str | MCPServerConfig]) -> list[BaseTool]:
         """Convert MCP server references/configs to CrewAI tools.
diff --git a/lib/crewai/tests/agents/test_agent.py b/lib/crewai/tests/agents/test_agent.py
index 2b126016c..8c7ba4e87 100644
--- a/lib/crewai/tests/agents/test_agent.py
+++ b/lib/crewai/tests/agents/test_agent.py
@@ -2595,6 +2595,59 @@ def test_agent_without_apps_no_platform_tools():
     assert tools == []
 
 
+def test_get_platform_tools_warns_when_apps_resolve_to_zero_tools(monkeypatch):
+    """A non-empty `apps` that resolves to no tools must warn loudly."""
+    import crewai_tools
+
+    monkeypatch.setattr(crewai_tools, "CrewaiPlatformTools", lambda apps: [])
+    agent = Agent(
+        role="Empty Apps Agent",
+        goal="Use apps",
+        backstory="b",
+        apps=["gmail", "slack"],
+    )
+
+    with pytest.warns(UserWarning, match="resolved to any tools"):
+        result = agent.get_platform_tools(agent.apps)
+
+    assert result == []
+
+
+def test_get_platform_tools_quiet_when_tools_resolve(monkeypatch):
+    """No warning when the apps resolve to at least one tool."""
+    from crewai.tools import tool
+
+    @tool
+    def platform_tool() -> str:
+        """A resolved platform tool."""
+        return "ok"
+
+    import crewai_tools
+
+    monkeypatch.setattr(crewai_tools, "CrewaiPlatformTools", lambda apps: [platform_tool])
+    agent = Agent(role="A", goal="g", backstory="b", apps=["gmail"])
+
+    with warnings.catch_warnings(record=True) as caught:
+        warnings.simplefilter("always")
+        result = agent.get_platform_tools(agent.apps)
+
+    assert result == [platform_tool]
+    assert not any("resolved to any tools" in str(w.message) for w in caught)
+
+
+def test_crew_prepare_tools_warns_on_empty_apps(monkeypatch):
+    """The warning also fires through the crew tool-injection path."""
+    import crewai_tools
+
+    monkeypatch.setattr(crewai_tools, "CrewaiPlatformTools", lambda apps: [])
+    agent = Agent(role="A", goal="g", backstory="b", apps=["gmail"])
+    task = Task(description="d", expected_output="o", agent=agent)
+    crew = Crew(agents=[agent], tasks=[task])
+
+    with pytest.warns(UserWarning, match="resolved to any tools"):
+        crew._prepare_tools(agent, task, [])
+
+
 def test_agent_mcps_accepts_slug_with_specific_tool():
     """Agent(mcps=["notion#get_page"]) must pass validation (_SLUG_RE)."""
     agent = Agent(