diff --git a/workflowai/core/domain/run.py b/workflowai/core/domain/run.py
index 8374caf..686321c 100644
--- a/workflowai/core/domain/run.py
+++ b/workflowai/core/domain/run.py
@@ -90,6 +90,7 @@ def format_output(self) -> str:
         1. The output as a nicely formatted JSON object
         2. The cost with $ prefix (if available)
         3. The latency with 2 decimal places and 's' suffix (if available)
+        4. The run URL for viewing in the web UI
 
         Example:
             Output:
@@ -100,6 +101,7 @@ def format_output(self) -> str:
             ==================================================
             Cost: $ 0.001
             Latency: 1.23s
+            URL: https://workflowai.com/_/agents/agent-1/runs/test-id
         """
         # Format the output string
         output = [
@@ -115,6 +117,9 @@ def format_output(self) -> str:
         if self.duration_seconds is not None:
             output.append(f"Latency: {self.duration_seconds:.2f}s")
 
+        # Always add the run URL
+        output.append(f"URL: {self.run_url}")
+
         return "\n".join(output)
 
     def __str__(self) -> str:
diff --git a/workflowai/core/domain/run_test.py b/workflowai/core/domain/run_test.py
index 8740448..886f5d5 100644
--- a/workflowai/core/domain/run_test.py
+++ b/workflowai/core/domain/run_test.py
@@ -15,8 +15,8 @@ class _TestOutput(BaseModel):
 @pytest.fixture
 def run1() -> Run[_TestOutput]:
     return Run[_TestOutput](
-        id="test-id",
-        agent_id="agent-1",
+        id="run-id",
+        agent_id="agent-id",
         schema_id=1,
         output=_TestOutput(message="test output"),
         duration_seconds=1.0,
@@ -51,10 +51,12 @@ def test_different_agents(self, run1: Run[_TestOutput], run2: Run[_TestOutput]):
 # 1. The output as a JSON object
 # 2. The cost with $ prefix and correct precision
 # 3. The latency with 2 decimal places and 's' suffix
-def test_format_output() -> None:
+# 4. The run URL
+@patch("workflowai.env.WORKFLOWAI_APP_URL", "https://workflowai.hello")
+def test_format_output_full():
     run = Run[_TestOutput](
-        id="test-id",
-        agent_id="agent-1",
+        id="run-id",
+        agent_id="agent-id",
         schema_id=1,
         output=_TestOutput(message="hello"),
         duration_seconds=1.23,
@@ -68,15 +70,17 @@ def test_format_output() -> None:
 }
 ==================================================
 Cost: $ 0.00100
-Latency: 1.23s"""
+Latency: 1.23s
+URL: https://workflowai.hello/_/agents/agent-id/runs/run-id"""
 
     assert run.format_output() == expected
 
 
-def test_format_output_very_low_cost() -> None:
+@patch("workflowai.env.WORKFLOWAI_APP_URL", "https://workflowai.hello")
+def test_format_output_very_low_cost():
     run = Run[_TestOutput](
-        id="test-id",
-        agent_id="agent-1",
+        id="run-id",
+        agent_id="agent-id",
         schema_id=1,
         output=_TestOutput(message="hello"),
         duration_seconds=1.23,
@@ -90,7 +94,8 @@ def test_format_output_very_low_cost() -> None:
 }
 ==================================================
 Cost: $ 0.00005
-Latency: 1.23s"""
+Latency: 1.23s
+URL: https://workflowai.hello/_/agents/agent-id/runs/run-id"""
 
     assert run.format_output() == expected
 
@@ -98,10 +103,12 @@ def test_format_output_very_low_cost() -> None:
 # Test that format_output works correctly when cost and latency are not provided:
 # 1. The output is still formatted as a JSON object
 # 2. No cost or latency lines are included in the output
-def test_format_output_no_cost_latency() -> None:
+# 3. The run URL is still included
+@patch("workflowai.env.WORKFLOWAI_APP_URL", "https://workflowai.hello")
+def test_format_output_no_cost_latency():
     run = Run[_TestOutput](
-        id="test-id",
-        agent_id="agent-1",
+        id="run-id",
+        agent_id="agent-id",
         schema_id=1,
         output=_TestOutput(message="hello"),
     )
@@ -111,7 +118,8 @@ def test_format_output_no_cost_latency() -> None:
 {
   "message": "hello"
 }
-=================================================="""
+==================================================
+URL: https://workflowai.hello/_/agents/agent-id/runs/run-id"""
 
     assert run.format_output() == expected
 
@@ -119,4 +127,4 @@ def test_format_output_no_cost_latency() -> None:
 class TestRunURL:
     @patch("workflowai.env.WORKFLOWAI_APP_URL", "https://workflowai.hello")
     def test_run_url(self, run1: Run[_TestOutput]):
-        assert run1.run_url == "https://workflowai.hello/_/agents/agent-1/runs/test-id"
+        assert run1.run_url == "https://workflowai.hello/_/agents/agent-id/runs/run-id"