PDF MCP Server

"""Constants for the PDF MCP Server.""" # Retrieval Configuration DEFAULT_CHUNK_LIMIT = 5 BM25_TOP_K = 3 VECTOR_SEARCH_TOP_K = 3 HYBRID_RETRIEVER_WEIGHTS = [0.5, 0.5] # [BM25, Vector] # Text Processing MAX_CHUNK_PREVIEW_LENGTH = 200 MARKDOWN_HEADERS = [("#", "Header 1"), ("##", "Header 2")] # Confidence Scoring BASE_CONFIDENCE = 0.5 CONFIDENCE_LONG_ANSWER_THRESHOLD = 100 CONFIDENCE_SHORT_ANSWER_THRESHOLD = 30 CONFIDENCE_MIN_CHUNKS_THRESHOLD = 3 CONFIDENCE_BOOST_LONG = 0.2 CONFIDENCE_PENALTY_SHORT = 0.2 CONFIDENCE_BOOST_MANY_CHUNKS = 0.2 CONFIDENCE_PENALTY_FEW_CHUNKS = 0.1 CONFIDENCE_PENALTY_UNCERTAINTY = 0.3 # Uncertainty Detection UNCERTAINTY_PHRASES = [ "i don't know", "i couldn't find", "not enough information", "unclear", "uncertain" ] # System Prompts SYSTEM_PROMPT = """You are a helpful assistant that answers questions based on the provided document context. Instructions: - Answer the question using ONLY the information from the provided context - If the context doesn't contain enough information, say so clearly - Be concise and accurate - Cite specific sources when possible - Do not make up information not present in the context""" # Response Messages NO_CHUNKS_FOUND_MESSAGE = "I couldn't find any relevant information in the documents to answer your question."