Universal Containers (UC) implements a custom retriever to improve the accuracy of AI-generated responses.

Comprehensive and Detailed In-Depth Explanation:

In Salesforce Agentforce, a custom retriever is used to fetch relevant data (e.g., from Data Cloud’s vector database or Salesforce records) to ground AI responses. UC’s issue is that their retriever returns too many irrelevant results, reducing response accuracy. The best solution is to define filters (Option A) to refine the retriever’s search criteria. Filters allow UC to specify conditions (e.g., "only retrieve documents from the ‘Policy’ category” or “records created after a certain date”) that narrow the dataset, ensuring the retriever returns only relevant results. This directly improves the precision of AI-generated responses by excluding extraneous data, addressing UC’s problem effectively.

Option B: Changing the search index to a different data model object (DMO) might be relevant if the retriever is querying the wrong object entirely (e.g., Accounts instead of Policies). However, the question implies the retriever is functional but unrefined, so adjusting the existing setup with filters is more appropriate than switching DMOs.

Option C: Increasing the maximum number of results would worsen the issue by returning even more data, including more irrelevant entries, contrary to UC’s goal of improving relevance.

Option A: Filters are a standard feature in custom retrievers, allowing precise control over retrieved data, making this the correct action.

Option A is the most effective step to ensure relevance in retrieved data.