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George Weale
2367901ec5
Co-authored-by: George Weale <gweale@google.com> PiperOrigin-RevId: 858763407
85 lines
2.4 KiB
Python
85 lines
2.4 KiB
Python
# Copyright 2026 Google LLC
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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from typing import Any
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from google.adk.agents import LlmAgent
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from google.adk.apps.app import App
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from google.adk.plugins import LoggingPlugin
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from google.adk.plugins import ReflectAndRetryToolPlugin
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APP_NAME = "basic"
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USER_ID = "test_user"
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def guess_number_tool(query: int) -> dict[str, Any]:
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"""A tool that guesses a number.
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Args:
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query: The number to guess.
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Returns:
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A dictionary containing the status and result of the tool execution.
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"""
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target_number = 3
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if query == target_number:
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return {"status": "success", "result": "Number is valid."}
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if abs(query - target_number) <= 2:
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return {"status": "error", "error_message": "Number is almost valid."}
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if query > target_number:
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raise ValueError("Number is too large.")
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if query < target_number:
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raise ValueError("Number is too small.")
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raise ValueError("Number is invalid.")
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class CustomRetryPlugin(ReflectAndRetryToolPlugin):
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async def extract_error_from_result(
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self, *, tool, tool_args, tool_context, result
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):
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return result if result.get("status") == "error" else None
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# Sample query: "guess a number between 1 and 50"
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root_agent = LlmAgent(
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name="hello_world",
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description="Helpful agent",
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instruction="""Your goal is to guess a secret positive integer by using the
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`guess_number_tool`.
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The tool will provide feedback on each guess.
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Your objective is to keep guessing until guess_number_tool returns
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'status: success'.
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Start by guessing 50, and use the tool's feedback to adjust your guesses
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and find the target number.""",
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model="gemini-2.5-flash",
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tools=[guess_number_tool],
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)
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app = App(
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name=APP_NAME,
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root_agent=root_agent,
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plugins=[
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CustomRetryPlugin(
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max_retries=20, throw_exception_if_retry_exceeded=False
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),
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LoggingPlugin(),
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],
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)
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