diff --git a/dbgpt/core/interface/variables.py b/dbgpt/core/interface/variables.py
index 22e035d52..5d538ad25 100644
--- a/dbgpt/core/interface/variables.py
+++ b/dbgpt/core/interface/variables.py
@@ -31,6 +31,7 @@ BUILTIN_VARIABLES_CORE_VARIABLES = "dbgpt.core.variables"
 BUILTIN_VARIABLES_CORE_SECRETS = "dbgpt.core.secrets"
 BUILTIN_VARIABLES_CORE_LLMS = "dbgpt.core.model.llms"
 BUILTIN_VARIABLES_CORE_EMBEDDINGS = "dbgpt.core.model.embeddings"
+# Not implemented yet
 BUILTIN_VARIABLES_CORE_RERANKERS = "dbgpt.core.model.rerankers"
 BUILTIN_VARIABLES_CORE_DATASOURCES = "dbgpt.core.datasources"
 BUILTIN_VARIABLES_CORE_AGENTS = "dbgpt.core.agent.agents"
diff --git a/dbgpt/model/cluster/client.py b/dbgpt/model/cluster/client.py
index d58645cb7..f4141cc23 100644
--- a/dbgpt/model/cluster/client.py
+++ b/dbgpt/model/cluster/client.py
@@ -27,7 +27,7 @@ from dbgpt.util.i18n_utils import _
             name="auto_convert_message",
             type=bool,
             optional=True,
-            default=False,
+            default=True,
             description=_(
                 "Whether to auto convert the messages that are not supported "
                 "by the LLM to a compatible format"
@@ -128,7 +128,7 @@ class DefaultLLMClient(LLMClient):
             name="auto_convert_message",
             type=bool,
             optional=True,
-            default=False,
+            default=True,
             description=_(
                 "Whether to auto convert the messages that are not supported "
                 "by the LLM to a compatible format"
@@ -158,7 +158,7 @@ class RemoteLLMClient(DefaultLLMClient):
     def __init__(
         self,
         controller_address: str = "http://127.0.0.1:8000",
-        auto_convert_message: bool = False,
+        auto_convert_message: bool = True,
     ):
         """Initialize the RemoteLLMClient."""
         from dbgpt.model.cluster import ModelRegistryClient, RemoteWorkerManager
diff --git a/dbgpt/serve/flow/api/endpoints.py b/dbgpt/serve/flow/api/endpoints.py
index c6148f994..3060956d5 100644
--- a/dbgpt/serve/flow/api/endpoints.py
+++ b/dbgpt/serve/flow/api/endpoints.py
@@ -21,6 +21,7 @@ from .schemas import (
     RefreshNodeRequest,
     ServeRequest,
     ServerResponse,
+    VariablesKeyResponse,
     VariablesRequest,
     VariablesResponse,
 )
@@ -359,6 +360,62 @@ async def update_variables(
     return Result.succ(res)
 
 
+@router.get(
+    "/variables",
+    response_model=Result[PaginationResult[VariablesResponse]],
+    dependencies=[Depends(check_api_key)],
+)
+async def get_variables_by_keys(
+    key: str = Query(..., description="variable key"),
+    scope: Optional[str] = Query(default=None, description="scope"),
+    scope_key: Optional[str] = Query(default=None, description="scope key"),
+    user_name: Optional[str] = Query(default=None, description="user name"),
+    sys_code: Optional[str] = Query(default=None, description="system code"),
+    page: int = Query(default=1, description="current page"),
+    page_size: int = Query(default=20, description="page size"),
+) -> Result[PaginationResult[VariablesResponse]]:
+    """Get the variables by keys
+
+    Returns:
+        VariablesResponse: The response
+    """
+    res = await get_variable_service().get_list_by_page(
+        key,
+        scope,
+        scope_key,
+        user_name,
+        sys_code,
+        page,
+        page_size,
+    )
+    return Result.succ(res)
+
+
+@router.get(
+    "/variables/keys",
+    response_model=Result[List[VariablesKeyResponse]],
+    dependencies=[Depends(check_api_key)],
+)
+async def get_variables_keys(
+    user_name: Optional[str] = Query(default=None, description="user name"),
+    sys_code: Optional[str] = Query(default=None, description="system code"),
+    category: Optional[str] = Query(default=None, description="category"),
+) -> Result[List[VariablesKeyResponse]]:
+    """Get the variable keys
+
+    Returns:
+        VariablesKeyResponse: The response
+    """
+    res = await blocking_func_to_async(
+        global_system_app,
+        get_variable_service().list_keys,
+        user_name,
+        sys_code,
+        category,
+    )
+    return Result.succ(res)
+
+
 @router.post("/flow/debug", dependencies=[Depends(check_api_key)])
 async def debug_flow(
     flow_debug_request: FlowDebugRequest, service: Service = Depends(get_service)
@@ -477,10 +534,13 @@ async def import_flow(
 def init_endpoints(system_app: SystemApp) -> None:
     """Initialize the endpoints"""
     from .variables_provider import (
+        BuiltinAgentsVariablesProvider,
         BuiltinAllSecretVariablesProvider,
         BuiltinAllVariablesProvider,
+        BuiltinDatasourceVariablesProvider,
         BuiltinEmbeddingsVariablesProvider,
         BuiltinFlowVariablesProvider,
+        BuiltinKnowledgeSpacesVariablesProvider,
         BuiltinLLMVariablesProvider,
         BuiltinNodeVariablesProvider,
     )
@@ -494,4 +554,7 @@ def init_endpoints(system_app: SystemApp) -> None:
     system_app.register(BuiltinAllSecretVariablesProvider)
     system_app.register(BuiltinLLMVariablesProvider)
     system_app.register(BuiltinEmbeddingsVariablesProvider)
+    system_app.register(BuiltinDatasourceVariablesProvider)
+    system_app.register(BuiltinAgentsVariablesProvider)
+    system_app.register(BuiltinKnowledgeSpacesVariablesProvider)
     global_system_app = system_app
diff --git a/dbgpt/serve/flow/api/schemas.py b/dbgpt/serve/flow/api/schemas.py
index cf82de982..6053dd885 100644
--- a/dbgpt/serve/flow/api/schemas.py
+++ b/dbgpt/serve/flow/api/schemas.py
@@ -2,7 +2,11 @@ from typing import Any, Dict, List, Literal, Optional, Union
 
 from dbgpt._private.pydantic import BaseModel, ConfigDict, Field
 from dbgpt.core.awel import CommonLLMHttpRequestBody
-from dbgpt.core.awel.flow.flow_factory import FlowPanel, VariablesRequest
+from dbgpt.core.awel.flow.flow_factory import (
+    FlowPanel,
+    VariablesRequest,
+    _VariablesRequestBase,
+)
 from dbgpt.core.awel.util.parameter_util import RefreshOptionRequest
 
 from ..config import SERVE_APP_NAME_HUMP
@@ -28,6 +32,13 @@ class VariablesResponse(VariablesRequest):
     )
 
 
+class VariablesKeyResponse(_VariablesRequestBase):
+    """Variables Key response model.
+
+    Just include the key, for select options in the frontend.
+    """
+
+
 class RefreshNodeRequest(BaseModel):
     """Flow response model"""
 
diff --git a/dbgpt/serve/flow/api/variables_provider.py b/dbgpt/serve/flow/api/variables_provider.py
index 4728f80e6..27ed63bf5 100644
--- a/dbgpt/serve/flow/api/variables_provider.py
+++ b/dbgpt/serve/flow/api/variables_provider.py
@@ -1,9 +1,12 @@
 from typing import List, Literal, Optional
 
 from dbgpt.core.interface.variables import (
+    BUILTIN_VARIABLES_CORE_AGENTS,
+    BUILTIN_VARIABLES_CORE_DATASOURCES,
     BUILTIN_VARIABLES_CORE_EMBEDDINGS,
     BUILTIN_VARIABLES_CORE_FLOW_NODES,
     BUILTIN_VARIABLES_CORE_FLOWS,
+    BUILTIN_VARIABLES_CORE_KNOWLEDGE_SPACES,
     BUILTIN_VARIABLES_CORE_LLMS,
     BUILTIN_VARIABLES_CORE_SECRETS,
     BUILTIN_VARIABLES_CORE_VARIABLES,
@@ -54,6 +57,7 @@ class BuiltinFlowVariablesProvider(BuiltinVariablesProvider):
                     scope_key=scope_key,
                     sys_code=sys_code,
                     user_name=user_name,
+                    description=flow.description,
                 )
             )
         return variables
@@ -91,6 +95,7 @@ class BuiltinNodeVariablesProvider(BuiltinVariablesProvider):
                     scope_key=scope_key,
                     sys_code=sys_code,
                     user_name=user_name,
+                    description=metadata.get("description"),
                 )
             )
         return variables
@@ -122,10 +127,14 @@ class BuiltinAllVariablesProvider(BuiltinVariablesProvider):
                     name=var.name,
                     label=var.label,
                     value=var.value,
+                    category=var.category,
+                    value_type=var.value_type,
                     scope=scope,
                     scope_key=scope_key,
                     sys_code=sys_code,
                     user_name=user_name,
+                    enabled=1 if var.enabled else 0,
+                    description=var.description,
                 )
             )
         return variables
@@ -258,3 +267,128 @@ class BuiltinEmbeddingsVariablesProvider(BuiltinLLMVariablesProvider):
         return await self._get_models(
             key, scope, scope_key, sys_code, user_name, "text2vec"
         )
+
+
+class BuiltinDatasourceVariablesProvider(BuiltinVariablesProvider):
+    """Builtin datasource variables provider.
+
+    Provide all datasource variables by variables "${dbgpt.core.datasource}"
+    """
+
+    name = BUILTIN_VARIABLES_CORE_DATASOURCES
+
+    def get_variables(
+        self,
+        key: str,
+        scope: str = "global",
+        scope_key: Optional[str] = None,
+        sys_code: Optional[str] = None,
+        user_name: Optional[str] = None,
+    ) -> List[StorageVariables]:
+        """Get the builtin variables."""
+        from dbgpt.serve.datasource.service.service import (
+            DatasourceServeResponse,
+            Service,
+        )
+
+        all_datasource: List[DatasourceServeResponse] = Service.get_instance(
+            self.system_app
+        ).list()
+
+        variables = []
+        for datasource in all_datasource:
+            label = f"[{datasource.db_type}]{datasource.db_name}"
+            variables.append(
+                StorageVariables(
+                    key=key,
+                    name=datasource.db_name,
+                    label=label,
+                    value=datasource.db_name,
+                    scope=scope,
+                    scope_key=scope_key,
+                    sys_code=sys_code,
+                    user_name=user_name,
+                    description=datasource.comment,
+                )
+            )
+        return variables
+
+
+class BuiltinAgentsVariablesProvider(BuiltinVariablesProvider):
+    """Builtin agents variables provider.
+
+    Provide all agents variables by variables "${dbgpt.core.agent.agents}"
+    """
+
+    name = BUILTIN_VARIABLES_CORE_AGENTS
+
+    def get_variables(
+        self,
+        key: str,
+        scope: str = "global",
+        scope_key: Optional[str] = None,
+        sys_code: Optional[str] = None,
+        user_name: Optional[str] = None,
+    ) -> List[StorageVariables]:
+        """Get the builtin variables."""
+        from dbgpt.agent.core.agent_manage import get_agent_manager
+
+        agent_manager = get_agent_manager(self.system_app)
+        agents = agent_manager.list_agents()
+        variables = []
+        for agent in agents:
+            variables.append(
+                StorageVariables(
+                    key=key,
+                    name=agent["name"],
+                    label=agent["desc"],
+                    value=agent["name"],
+                    scope=scope,
+                    scope_key=scope_key,
+                    sys_code=sys_code,
+                    user_name=user_name,
+                    description=agent["desc"],
+                )
+            )
+        return variables
+
+
+class BuiltinKnowledgeSpacesVariablesProvider(BuiltinVariablesProvider):
+    """Builtin knowledge variables provider.
+
+    Provide all knowledge variables by variables "${dbgpt.core.knowledge_spaces}"
+    """
+
+    name = BUILTIN_VARIABLES_CORE_KNOWLEDGE_SPACES
+
+    def get_variables(
+        self,
+        key: str,
+        scope: str = "global",
+        scope_key: Optional[str] = None,
+        sys_code: Optional[str] = None,
+        user_name: Optional[str] = None,
+    ) -> List[StorageVariables]:
+        """Get the builtin variables."""
+        from dbgpt.serve.rag.service.service import Service, SpaceServeRequest
+
+        # TODO: Query with user_name and sys_code
+        knowledge_list = Service.get_instance(self.system_app).get_list(
+            SpaceServeRequest()
+        )
+        variables = []
+        for k in knowledge_list:
+            variables.append(
+                StorageVariables(
+                    key=key,
+                    name=k.name,
+                    label=k.name,
+                    value=k.name,
+                    scope=scope,
+                    scope_key=scope_key,
+                    sys_code=sys_code,
+                    user_name=user_name,
+                    description=k.desc,
+                )
+            )
+        return variables
diff --git a/dbgpt/serve/flow/service/service.py b/dbgpt/serve/flow/service/service.py
index cc9c00341..30a8a06c0 100644
--- a/dbgpt/serve/flow/service/service.py
+++ b/dbgpt/serve/flow/service/service.py
@@ -230,7 +230,7 @@ class Service(BaseService[ServeEntity, ServeRequest, ServerResponse]):
                     continue
                 # Set state to DEPLOYED
                 flow.state = State.DEPLOYED
-                exist_inst = self.get({"name": flow.name})
+                exist_inst = self.dao.get_one({"name": flow.name})
                 if not exist_inst:
                     self.create_and_save_dag(flow, save_failed_flow=True)
                 elif is_first_load or exist_inst.state != State.RUNNING:
diff --git a/dbgpt/serve/flow/service/variables_service.py b/dbgpt/serve/flow/service/variables_service.py
index 09e2a16b0..fbb4cc9b9 100644
--- a/dbgpt/serve/flow/service/variables_service.py
+++ b/dbgpt/serve/flow/service/variables_service.py
@@ -1,10 +1,25 @@
 from typing import List, Optional
 
 from dbgpt import SystemApp
-from dbgpt.core.interface.variables import StorageVariables, VariablesProvider
-from dbgpt.serve.core import BaseService
+from dbgpt.core.interface.variables import (
+    BUILTIN_VARIABLES_CORE_AGENTS,
+    BUILTIN_VARIABLES_CORE_DATASOURCES,
+    BUILTIN_VARIABLES_CORE_EMBEDDINGS,
+    BUILTIN_VARIABLES_CORE_FLOW_NODES,
+    BUILTIN_VARIABLES_CORE_FLOWS,
+    BUILTIN_VARIABLES_CORE_KNOWLEDGE_SPACES,
+    BUILTIN_VARIABLES_CORE_LLMS,
+    BUILTIN_VARIABLES_CORE_RERANKERS,
+    BUILTIN_VARIABLES_CORE_SECRETS,
+    BUILTIN_VARIABLES_CORE_VARIABLES,
+    StorageVariables,
+    VariablesProvider,
+)
+from dbgpt.serve.core import BaseService, blocking_func_to_async
+from dbgpt.util import PaginationResult
+from dbgpt.util.i18n_utils import _
 
-from ..api.schemas import VariablesRequest, VariablesResponse
+from ..api.schemas import VariablesKeyResponse, VariablesRequest, VariablesResponse
 from ..config import (
     SERVE_CONFIG_KEY_PREFIX,
     SERVE_VARIABLES_SERVICE_COMPONENT_NAME,
@@ -12,6 +27,93 @@ from ..config import (
 )
 from ..models.models import VariablesDao, VariablesEntity
 
+BUILTIN_VARIABLES = [
+    VariablesKeyResponse(
+        key=BUILTIN_VARIABLES_CORE_FLOWS,
+        label=_("All AWEL Flows"),
+        description=_("Fetch all AWEL flows in the system"),
+        value_type="str",
+        category="common",
+        scope="global",
+    ),
+    VariablesKeyResponse(
+        key=BUILTIN_VARIABLES_CORE_FLOW_NODES,
+        label=_("All AWEL Flow Nodes"),
+        description=_("Fetch all AWEL flow nodes in the system"),
+        value_type="str",
+        category="common",
+        scope="global",
+    ),
+    VariablesKeyResponse(
+        key=BUILTIN_VARIABLES_CORE_VARIABLES,
+        label=_("All Variables"),
+        description=_("Fetch all variables in the system"),
+        value_type="str",
+        category="common",
+        scope="global",
+    ),
+    VariablesKeyResponse(
+        key=BUILTIN_VARIABLES_CORE_SECRETS,
+        label=_("All Secrets"),
+        description=_("Fetch all secrets in the system"),
+        value_type="str",
+        category="common",
+        scope="global",
+    ),
+    VariablesKeyResponse(
+        key=BUILTIN_VARIABLES_CORE_LLMS,
+        label=_("All LLMs"),
+        description=_("Fetch all LLMs in the system"),
+        value_type="str",
+        category="common",
+        scope="global",
+    ),
+    VariablesKeyResponse(
+        key=BUILTIN_VARIABLES_CORE_EMBEDDINGS,
+        label=_("All Embeddings"),
+        description=_("Fetch all embeddings models in the system"),
+        value_type="str",
+        category="common",
+        scope="global",
+    ),
+    VariablesKeyResponse(
+        key=BUILTIN_VARIABLES_CORE_RERANKERS,
+        label=_("All Rerankers"),
+        description=_("Fetch all rerankers in the system"),
+        value_type="str",
+        category="common",
+        scope="global",
+    ),
+    VariablesKeyResponse(
+        key=BUILTIN_VARIABLES_CORE_DATASOURCES,
+        label=_("All Data Sources"),
+        description=_("Fetch all data sources in the system"),
+        value_type="str",
+        category="common",
+        scope="global",
+    ),
+    VariablesKeyResponse(
+        key=BUILTIN_VARIABLES_CORE_AGENTS,
+        label=_("All Agents"),
+        description=_("Fetch all agents in the system"),
+        value_type="str",
+        category="common",
+        scope="global",
+    ),
+    VariablesKeyResponse(
+        key=BUILTIN_VARIABLES_CORE_KNOWLEDGE_SPACES,
+        label=_("All Knowledge Spaces"),
+        description=_("Fetch all knowledge spaces in the system"),
+        value_type="str",
+        category="common",
+        scope="global",
+    ),
+]
+
+
+def _is_builtin_variable(key: str) -> bool:
+    return key in [v.key for v in BUILTIN_VARIABLES]
+
 
 class VariablesService(
     BaseService[VariablesEntity, VariablesRequest, VariablesResponse]
@@ -148,5 +250,119 @@ class VariablesService(
         return self.dao.get_one(query)
 
     def list_all_variables(self, category: str = "common") -> List[VariablesResponse]:
-        """List all variables."""
+        """List all variables.
+
+        Please note that this method will return all variables in the system, it may
+        be a large list.
+        """
         return self.dao.get_list({"enabled": True, "category": category})
+
+    def list_keys(
+        self,
+        user_name: Optional[str] = None,
+        sys_code: Optional[str] = None,
+        category: Optional[str] = None,
+    ) -> List[VariablesKeyResponse]:
+        """List all keys."""
+        results = []
+
+        # TODO: More high performance way to get the keys
+        all_db_variables = self.dao.get_list(
+            {
+                "enabled": True,
+                "category": category,
+                "user_name": user_name,
+                "sys_code": sys_code,
+            }
+        )
+        if not user_name:
+            # Only return the keys that are not user specific
+            all_db_variables = [v for v in all_db_variables if not v.user_name]
+        if not sys_code:
+            # Only return the keys that are not system specific
+            all_db_variables = [v for v in all_db_variables if not v.sys_code]
+        key_to_db_variable = {}
+        for db_variable in all_db_variables:
+            key = db_variable.key
+            if key not in key_to_db_variable:
+                key_to_db_variable[key] = db_variable
+
+        # Append all builtin variables to the results
+        results.extend(BUILTIN_VARIABLES)
+
+        # Append all db variables to the results
+        for key, db_variable in key_to_db_variable.items():
+            results.append(
+                VariablesKeyResponse(
+                    key=key,
+                    label=db_variable.label,
+                    description=db_variable.description,
+                    value_type=db_variable.value_type,
+                    category=db_variable.category,
+                    scope=db_variable.scope,
+                    scope_key=db_variable.scope_key,
+                )
+            )
+        return results
+
+    async def get_list_by_page(
+        self,
+        key: str,
+        scope: Optional[str] = None,
+        scope_key: Optional[str] = None,
+        user_name: Optional[str] = None,
+        sys_code: Optional[str] = None,
+        page: int = 1,
+        page_size: int = 20,
+    ) -> PaginationResult[VariablesResponse]:
+        """Get a list of variables by page."""
+        if not _is_builtin_variable(key):
+            query = {
+                "key": key,
+                "scope": scope,
+                "scope_key": scope_key,
+                "user_name": user_name,
+                "sys_code": sys_code,
+            }
+            return await blocking_func_to_async(
+                self._system_app,
+                self.dao.get_list_page,
+                query,
+                page,
+                page_size,
+                desc_order_column="gmt_modified",
+            )
+        else:
+            variables: List[
+                StorageVariables
+            ] = await self.variables_provider.async_get_variables(
+                key=key,
+                scope=scope,
+                scope_key=scope_key,
+                sys_code=sys_code,
+                user_name=user_name,
+            )
+            result_variables = []
+            for entity in variables:
+                result_variables.append(
+                    VariablesResponse(
+                        id=-1,
+                        key=entity.key,
+                        name=entity.name,
+                        label=entity.label,
+                        value=entity.value,
+                        value_type=entity.value_type,
+                        category=entity.category,
+                        scope=entity.scope,
+                        scope_key=entity.scope_key,
+                        enabled=True if entity.enabled == 1 else False,
+                        user_name=entity.user_name,
+                        sys_code=entity.sys_code,
+                        description=entity.description,
+                    )
+                )
+            return PaginationResult.build_from_all(
+                result_variables,
+                page,
+                page_size,
+            )
diff --git a/dbgpt/util/pagination_utils.py b/dbgpt/util/pagination_utils.py
index f8c20ccd9..5b67333c6 100644
--- a/dbgpt/util/pagination_utils.py
+++ b/dbgpt/util/pagination_utils.py
@@ -15,3 +15,29 @@ class PaginationResult(BaseModel, Generic[T]):
     total_pages: int = Field(..., description="total number of pages")
     page: int = Field(..., description="Current page number")
     page_size: int = Field(..., description="Number of items per page")
+
+    @classmethod
+    def build_from_all(
+        cls, all_items: List[T], page: int, page_size: int
+    ) -> "PaginationResult[T]":
+        """Build a pagination result from all items"""
+        if page < 1:
+            page = 1
+        if page_size < 1:
+            page_size = 1
+        total_count = len(all_items)
+        total_pages = (
+            (total_count + page_size - 1) // page_size if total_count > 0 else 0
+        )
+        page = max(1, min(page, total_pages)) if total_pages > 0 else 0
+        start_index = (page - 1) * page_size if page > 0 else 0
+        end_index = min(start_index + page_size, total_count)
+        items = all_items[start_index:end_index]
+
+        return cls(
+            items=items,
+            total_count=total_count,
+            total_pages=total_pages,
+            page=page,
+            page_size=page_size,
+        )
diff --git a/dbgpt/util/tests/test_pagination_utils.py b/dbgpt/util/tests/test_pagination_utils.py
new file mode 100644
index 000000000..d0d2132c5
--- /dev/null
+++ b/dbgpt/util/tests/test_pagination_utils.py
@@ -0,0 +1,84 @@
+from dbgpt.util.pagination_utils import PaginationResult
+
+
+def test_build_from_all_normal_case():
+    items = list(range(100))
+    result = PaginationResult.build_from_all(items, page=2, page_size=20)
+
+    assert len(result.items) == 20
+    assert result.items == list(range(20, 40))
+    assert result.total_count == 100
+    assert result.total_pages == 5
+    assert result.page == 2
+    assert result.page_size == 20
+
+
+def test_build_from_all_empty_list():
+    items = []
+    result = PaginationResult.build_from_all(items, page=1, page_size=5)
+
+    assert result.items == []
+    assert result.total_count == 0
+    assert result.total_pages == 0
+    assert result.page == 0
+    assert result.page_size == 5
+
+
+def test_build_from_all_last_page():
+    items = list(range(95))
+    result = PaginationResult.build_from_all(items, page=5, page_size=20)
+
+    assert len(result.items) == 15
+    assert result.items == list(range(80, 95))
+    assert result.total_count == 95
+    assert result.total_pages == 5
+    assert result.page == 5
+    assert result.page_size == 20
+
+
+def test_build_from_all_page_out_of_range():
+    items = list(range(50))
+    result = PaginationResult.build_from_all(items, page=10, page_size=10)
+
+    assert len(result.items) == 10
+    assert result.items == list(range(40, 50))
+    assert result.total_count == 50
+    assert result.total_pages == 5
+    assert result.page == 5
+    assert result.page_size == 10
+
+
+def test_build_from_all_page_zero():
+    items = list(range(50))
+    result = PaginationResult.build_from_all(items, page=0, page_size=10)
+
+    assert len(result.items) == 10
+    assert result.items == list(range(0, 10))
+    assert result.total_count == 50
+    assert result.total_pages == 5
+    assert result.page == 1
+    assert result.page_size == 10
+
+
+def test_build_from_all_negative_page():
+    items = list(range(50))
+    result = PaginationResult.build_from_all(items, page=-1, page_size=10)
+
+    assert len(result.items) == 10
+    assert result.items == list(range(0, 10))
+    assert result.total_count == 50
+    assert result.total_pages == 5
+    assert result.page == 1
+    assert result.page_size == 10
+
+
+def test_build_from_all_page_size_larger_than_total():
+    items = list(range(50))
+    result = PaginationResult.build_from_all(items, page=1, page_size=100)
+
+    assert len(result.items) == 50
+    assert result.items == list(range(50))
+    assert result.total_count == 50
+    assert result.total_pages == 1
+    assert result.page == 1
+    assert result.page_size == 100