Learn how to implement embedding-based context filtering for MCP with our step-by-step guide featuring code examples, system instructions, and user profiling tips.

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To implement embedding-based context filtering for MCP, begin by understanding its core components. MCP consists of:
Ensure that your development environment is equipped for LLM operation and context filtering.
pip install transformers numpy faiss-cpu
Define the system instructions to guide the language model appropriately. This is typically a text file or a string within your code that sets the overall behavior of the model.
system_instructions = "You are a helpful assistant specialized in finance."
Create a user profile to tailor responses. This will be a dictionary holding user information, preferences, and goals.
user_profile = {
"name": "John Doe",
"preferences": ["finance", "technology"],
"goals": ["learn about stock market"]
}
Add relevant document context to support the language model with background knowledge.
document_context = [
"The stock market is unpredictable, but historical data can provide insights.",
"Fintech combines finance and technology to offer new services."
]
Specify the active tasks or goals to ensure the model focuses on the current objectives.
active_tasks = [
"Explain the basics of stock trading.",
"Discuss the impact of technology on finance."
]
Outline which external tools the model can access to enhance functionality.
tool_access = {
"web_access": True,
"database_access": False
}
Implement rules to constrain the model’s output where necessary.
rules_constraints = [
"Do not provide medical or legal advice.",
"Focus on finance-related queries."
]
To perform context filtering, use embeddings to measure the relevance of various context elements. Compute embeddings for the context and queries and use cosine similarity or another metric to filter pertinent information.
from transformers import AutoTokenizer, AutoModel
import numpy as np
tokenizer = AutoTokenizer.from_pretrained('distilbert-base-uncased')
model = AutoModel.from_pretrained('distilbert-base-uncased')
def embed_text(text):
inputs = tokenizer(text, return_tensors="pt")
outputs = model(**inputs)
return outputs.last_hidden_state.mean(dim=1).detach().numpy()
query_embedding = embed_text("Tell me about fintech.")
document_embeddings = [embed_text(doc) for doc in document_context]
similarities = [(doc, np.dot(embed, query_embedding.T)) for doc, embed in zip(document_context, document_embeddings)]
filtered_context = [doc for doc, sim in similarities if sim > 0.8] # Filter based on threshold
Finally, integrate the filtered context into the MCP workflow, feeding it into the language model alongside the structured components to enhance response accuracy.
mcp_input = {
"system_instructions": system_instructions,
"user_profile": user_profile,
"context": filtered_context,
"active_tasks": active_tasks,
"tool_access": tool_access,
"rules_constraints": rules_constraints
}
Continuously evaluate the effectiveness of the context filtering and adjust components where necessary to enhance the model's performance and adaptability.
def evaluate_model_output(output):
return "Satisfactory" if "finance" in output else "Needs Improvement"
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