Structural keys are the user-memory fields that are always included in the system prompt — diet, interests, last_booking, typical_party_size, fitness_goal, and a dozen more — so they never require embedding search.
Last verified: April 2026
What is Structural Keys?
Structural keys are the user-memory fields that are always included in the system prompt — diet, interests, last_booking, typical_party_size, fitness_goal, and a dozen more — so they never require embedding search.
Structural keys are the answer to the question 'what do we always need to know about this user'. Because they are injected unconditionally, the agent can reason about them in every turn without spending vectors. The list is fixed and reviewed at the application level; adding a new structural key is a schema change, not a runtime decision.
FAQ
Structural Keys FAQ.
Common questions about Structural Keys in the AGNT platform.
Structural keys are the user-memory fields that are always included in the system prompt — diet, interests, last_booking, typical_party_size, fitness_goal, and a dozen more — so they never require embedding search.
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Related terms
User Memory
User memory is AGNT's per-user fact store: key-value pairs with confidence scores and pgvector embeddings, split into structural keys that always enter the prompt and semantic keys recalled on demand.
Semantic Recall
Semantic recall is the embedding-based retrieval step that finds memories relevant to the current message, even when the wording has changed since the original fact was stored.
Soul Loader
The Soul Loader is AGNT's system-prompt builder: it assembles the active prompt from user memory, venue soul, time-of-day context, and recent activity on every turn.
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What is Structural Keys? Structural keys are the user-memory fields that are always included in the system prompt — diet, interests, last_booking, typical_party_size, fitness_goal, and a dozen more — so they never require embedding search. https://agntdot.com/glossary/structural-keys
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