♻️ Refactor: Remove the limit on the maximum number of execution steps for the agent. (#3400)

* ♻️ Refactor: Remove the limit on the maximum number of execution steps for the agent.

* ♻️ Refactor: Remove the limit on the maximum number of execution steps for the agent.

* ♻️ Refactor: Remove the limit on the maximum number of execution steps for the agent.

Author: YehongPan

backend/consts/model.py

@@ -547,7 +547,7 @@ class AgentInfoRequest(BaseModel):
     business_description: Optional[str] = None
     author: Optional[str] = None
     model_ids: Optional[List[int]] = None
-    max_steps: Optional[int] = Field(default=None, ge=1, le=30)
+    max_steps: Optional[int] = Field(default=None, ge=1)
     requested_output_tokens: Optional[int] = Field(default=None, gt=0)
     provide_run_summary: Optional[bool] = None
     duty_prompt: Optional[str] = None

backend/services/agent_service.py

@@ -2242,9 +2242,9 @@ async def import_agent_by_agent_id(
                                                  enabled=True,
                                                  params=tool.params))
     # check the validity of the agent parameters
-    if import_agent_info.max_steps <= 0 or import_agent_info.max_steps > 30:
+    if import_agent_info.max_steps <= 0:
         raise ValueError(
-            f"Invalid max steps: {import_agent_info.max_steps}. max steps must be greater than 0 and less than 30.")
+            f"Invalid max steps: {import_agent_info.max_steps}. max steps must be greater than 0.")
     if not import_agent_info.name.isidentifier():
         raise ValueError(
             f"Invalid agent name: {import_agent_info.name}. agent name must be a valid python variable name.")

frontend/app/[locale]/agents/components/agentInfo/AgentGenerateDetail.tsx

@@ -1046,14 +1046,12 @@ export default function AgentGenerateDetail({}) {
                               {
                                 type: "number",
                                 min: 1,
-                                max: 30,
                                 message: t("businessLogic.config.maxSteps"),
                               },
                             ]}
                           >
                             <InputNumber
                               min={1}
-                              max={30}
                               style={{ width: "100%" }}
                               onBlur={() => {
                                 const value = form.getFieldValue("mainAgentMaxStep");

sdk/nexent/core/agents/agent_model.py

@@ -200,7 +200,7 @@ class AgentConfig(BaseModel):
     description: str = Field(description="Agent description")
     prompt_templates: Optional[Dict[str, Any]] = Field(description="Prompt templates", default=None)
     tools: List[ToolConfig] = Field(description="List of tool information")
-    max_steps: int = Field(description="Maximum number of steps for current Agent", default=15, ge=1, le=30)
+    max_steps: int = Field(description="Maximum number of steps for current Agent", default=15, ge=1)
     requested_output_tokens: Optional[int] = Field(
         description=(
             "Per-agent W2 output reserve override. None means inherit the "

test/backend/services/test_agent_service.py

@@ -10863,7 +10863,7 @@ async def test_import_agent_by_agent_id_invalid_max_steps():
     mock_agent_info.description = "desc"
     mock_agent_info.business_description = "biz"
     mock_agent_info.author = "author"
-    mock_agent_info.max_steps = 35  # Too high (> 30)
+    mock_agent_info.max_steps = -1  # Invalid: must be > 0
     mock_agent_info.provide_run_summary = True
     mock_agent_info.duty_prompt = "duty"
     mock_agent_info.constraint_prompt = "constraint"

test/sdk/core/agents/test_agent_model.py

@@ -1238,17 +1238,8 @@ def test_agent_config_max_steps_boundary(self):
         )
         assert config_max.max_steps == 30
 
-    def test_agent_config_max_steps_rejects_out_of_bounds(self):
-        """Test AgentConfig rejects max_steps values outside 1-30 range."""
-        with pytest.raises(Exception):
-            agent_model_module.AgentConfig(
-                name="too_high",
-                description="Too high steps",
-                tools=[],
-                model_name="test",
-                max_steps=31
-            )
-
+    def test_agent_config_max_steps_rejects_below_lower_bound(self):
+        """Test AgentConfig rejects max_steps values below the lower bound (1)."""
         with pytest.raises(Exception):
             agent_model_module.AgentConfig(
                 name="too_low",
@@ -1258,6 +1249,22 @@ def test_agent_config_max_steps_rejects_out_of_bounds(self):
                 max_steps=0
             )
 
+    def test_agent_config_max_steps_accepts_above_design_max(self):
+        """Test AgentConfig accepts max_steps values above the design-maximum (30).
+
+        The model enforces ge=1 (lower bound) but does not enforce an upper bound.
+        Values above 30 are silently accepted; callers are responsible for enforcing
+        application-level limits if needed.
+        """
+        config = agent_model_module.AgentConfig(
+            name="above_design_max",
+            description="Steps above 30",
+            tools=[],
+            model_name="test",
+            max_steps=31
+        )
+        assert config.max_steps == 31
+
 
 class TestAgentVerificationConfig:
     """Tests for layered ReAct verification configuration."""