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feat (backend): Add support for MCP servers natively via CodeActAgent (#7637)

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Co-authored-by: trungbach <trunga2k29@gmail.com>
Co-authored-by: quangdz1704 <Ntq.1704@gmail.com>
Co-authored-by: Xingyao Wang <xingyao6@illinois.edu>
This commit is contained in:
Duc Pham
2025-04-09 18:59:13 -07:00
committed by GitHub
parent e359a4affa
commit 35d49f6941
40 changed files with 803 additions and 34 deletions
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13
openhands/agenthub/codeact_agent/function_calling.py
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@@ -24,6 +24,7 @@ from openhands.core.exceptions import (
FunctionCallNotExistsError,
FunctionCallValidationError,
)
from openhands.core.logger import openhands_logger as logger
from openhands.events.action import (
Action,
AgentDelegateAction,
@@ -37,9 +38,11 @@ from openhands.events.action import (
IPythonRunCellAction,
MessageAction,
)
from openhands.events.action.mcp import McpAction
from openhands.events.event import FileEditSource, FileReadSource
from openhands.events.tool import ToolCallMetadata
from openhands.llm import LLM
from openhands.mcp import MCPClientTool
def combine_thought(action: Action, thought: str) -> Action:
@@ -70,6 +73,7 @@ def response_to_actions(response: ModelResponse) -> list[Action]:
# Process each tool call to OpenHands action
for i, tool_call in enumerate(assistant_msg.tool_calls):
action: Action
logger.debug(f'Tool call in function_calling.py: {tool_call}')
try:
arguments = json.loads(tool_call.function.arguments)
except json.decoder.JSONDecodeError as e:
@@ -191,6 +195,15 @@ def response_to_actions(response: ModelResponse) -> list[Action]:
f'Missing required argument "url" in tool call {tool_call.function.name}'
)
action = BrowseURLAction(url=arguments['url'])
# ================================================
# McpAction (MCP)
# ================================================
elif tool_call.function.name.endswith(MCPClientTool.postfix()):
action = McpAction(
name=tool_call.function.name.rstrip(MCPClientTool.postfix()),
arguments=tool_call.function.arguments,
)
else:
raise FunctionCallNotExistsError(
f'Tool {tool_call.function.name} is not registered. (arguments: {arguments}). Please check the tool name and retry with an existing tool.'