---
title: "Context Injection / Prompt Stuffing · agent retrieval pattern · Agent Fieldbook"
url: https://agentfieldbook.org/memory/retrieval/context-injection/
description: "Load persisted state verbatim into the system prompt every turn: no retrieval step."
section: "Memory · Retrieval"
source: Agent Fieldbook — generated from the published page
---

# Context Injection / Prompt Stuffing

Load persisted state verbatim into the system prompt every turn: no retrieval step.

Verified against [arxiv.org](https://arxiv.org/abs/2310.08560)

- [arxiv.org](https://arxiv.org/abs/2310.08560)

## How it works

## At a glance

| Field | Value |
| --- | --- |
| Stage | Retrieval |
| Phase | Read |
| Used by | Letta (core memory blocks)· Claude / OpenAI system-prompt memory |

## Trade-off

Bounded by the context window; cost scales with state size and grows every turn.

## Basis

## Verified against

- [https://arxiv.org/abs/2310.08560](https://arxiv.org/abs/2310.08560)

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