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| 1 | +# Copyright 2025 Google LLC |
| 2 | +# |
| 3 | +# Licensed under the Apache License, Version 2.0 (the "License"); |
| 4 | +# you may not use this file except in compliance with the License. |
| 5 | +# You may obtain a copy of the License at |
| 6 | +# |
| 7 | +# http://www.apache.org/licenses/LICENSE-2.0 |
| 8 | +# |
| 9 | +# Unless required by applicable law or agreed to in writing, software |
| 10 | +# distributed under the License is distributed on an "AS IS" BASIS, |
| 11 | +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 12 | +# See the License for the specific language governing permissions and |
| 13 | +# limitations under the License. |
| 14 | + |
| 15 | +import os |
| 16 | + |
| 17 | +from dotenv import load_dotenv |
| 18 | +from google.adk.agents import Agent |
| 19 | +from google.adk.tools.retrieval.vertex_ai_rag_retrieval import VertexAiRagRetrieval |
| 20 | +from vertexai.preview import rag |
| 21 | + |
| 22 | +load_dotenv() |
| 23 | + |
| 24 | +ask_vertex_retrieval = VertexAiRagRetrieval( |
| 25 | + name="retrieve_rag_documentation", |
| 26 | + description=( |
| 27 | + "Use this tool to retrieve documentation and reference materials for" |
| 28 | + " the question from the RAG corpus," |
| 29 | + ), |
| 30 | + rag_resources=[ |
| 31 | + rag.RagResource( |
| 32 | + # please fill in your own rag corpus |
| 33 | + # e.g. projects/123/locations/us-central1/ragCorpora/456 |
| 34 | + rag_corpus=os.environ.get("RAG_CORPUS"), |
| 35 | + ) |
| 36 | + ], |
| 37 | + similarity_top_k=1, |
| 38 | + vector_distance_threshold=0.6, |
| 39 | +) |
| 40 | + |
| 41 | +root_agent = Agent( |
| 42 | + model="gemini-2.0-flash-001", |
| 43 | + name="root_agent", |
| 44 | + instruction=( |
| 45 | + "You are an AI assistant with access to specialized corpus of" |
| 46 | + " documents. Your role is to provide accurate and concise answers to" |
| 47 | + " questions based on documents that are retrievable using" |
| 48 | + " ask_vertex_retrieval." |
| 49 | + ), |
| 50 | + tools=[ask_vertex_retrieval], |
| 51 | +) |
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