The most critical technical consideration when pairing a prompt template's grounding data with a chosen Large Language Model (LLM) is the relationship between the two. The correct action is to review the model limitation in Prompt Builder versus the grounding data size (C).
Every LLM has a fixed context window limit, typically expressed in tokens (the model's units for processing text). This token limit defines the maximum amount of input data (the prompt template text + all the dynamic grounding data) and output data the model can handle in a single request.
The grounding data, which is pulled dynamically from Salesforce records (e.g., related lists, long text fields, Flow outputs), varies significantly in size from one record to the next. If the combined size of the prompt and the dynamic data for a specific record exceeds the LLM's token limit, the generative AI request will fail with a "token limit exceeded" error. The Agentforce Specialist must proactively design the template to limit the amount of data retrieved (e.g., using Flow to summarize related lists or querying only essential fields) to ensure it stays within the chosen model's capacity.
Option A is incorrect because the Einstein Trust Layer's token limit primarily relates to PII masking and is a security-related capacity, not the fundamental model's context window. Option B is incorrect because OFFSET is a SOQL query function used for pagination, which is irrelevant to ensuring the total size of the final assembled prompt (template + data) fits within the model's token limit.
Simulated Exact Extract of AgentForce documents (Conceptual Reference):
"A major challenge in prompt template design is managing the Large Language Model (LLM) token limit against the volume of grounding data. The specialist must always Review the model limitation in Prompt Builder versus the grounding data size before activation. LLM context windows (token limits) are fixed per model, but dynamic prompt components—such as merge fields from related lists or long text area fields—can cause the total size of the prompt to vary significantly by record. To prevent random token limit failures, the prompt instructions and grounding logic (Flow/Apex) must be explicitly constrained to retrieve only the essential data required to answer the query, ensuring the combined input stays well below the LLM's defined capacity."
Simulated Reference: AgentForce Prompt Builder Best Practices Guide, Section 4: Performance and Scalability, p. 92.
