---
title: "Fact-Key Lookup · agent retrieval pattern · Agent Fieldbook"
url: https://agentfieldbook.org/memory/retrieval/fact-key-lookup/
description: "Direct lookup where the query maps to a known normalized topic key: an exact topic match, the strongest retrieval signal."
section: "Memory · Retrieval"
source: Agent Fieldbook — generated from the published page
---

# Fact-Key Lookup

Direct lookup where the query maps to a known normalized topic key: an exact topic match, the strongest retrieval signal.

Verified against [blog.cloudflare.com](https://blog.cloudflare.com/introducing-agent-memory/)

- [blog.cloudflare.com](https://blog.cloudflare.com/introducing-agent-memory/)

## How it works

## At a glance

| Field | Value |
| --- | --- |
| Stage | Retrieval |
| Phase | Read |
| Used by | Cloudflare Agent Memory |

## Trade-off

Only fires when a clean key exists; useless for fuzzy or novel phrasing.

## Basis

## Verified against

- [https://blog.cloudflare.com/introducing-agent-memory/](https://blog.cloudflare.com/introducing-agent-memory/)

The corpus does not rewrite vendor documentation. Where copy is quoted verbatim it is marked as such and attributed to its source.