# Primary Sources on Context Engineering

> Curated reading list of core engineering essays on agent context management.

A curated reference list compiling primary essays, papers, and cookbooks on context engineering from top AI labs and agent builders. It tracks how teams like Anthropic, Cursor, Manus, and OpenAI handle context discovery, harnesses, and memory. It serves as an index for studying modern agent architecture.

## The list

Manus — "Context Engineering for AI Agents: Lessons from Building Manus" (Jul 2025); Cursor — "Dynamic Context Discovery" (Jan 2026); Anthropic — "Effective Context Engineering for AI Agents" + "Effective Harnesses for Long-Running Agents" (Sep 2025, Jan 2026); OpenAI — Agents SDK Cookbook: Session Memory + Context Personalization (Sep–Dec 2025); Google DeepMind — ReadAgent Paper + Gemini Long Context Docs (2024–2025); LangChain — "Context Engineering for Agents" + "The Rise of Context Engineering" + "Deep Agents" (Jun–Nov 2025).

## What it is for

- Study how top AI labs manage prompt and context windows for autonomous agents
- Design memory and retrieval architectures for complex agent workflows
- Reference primary sources and papers when evaluating agent development frameworks

## Key points

- Manus's lessons on context engineering for autonomous AI agents
- Cursor's technical writeup on dynamic context discovery
- Anthropic guides covering context engineering and harnesses for long-running agents
- OpenAI Agents SDK cookbook recipes for session memory and personalization
- Google DeepMind ReadAgent research paper and Gemini long-context documentation
- LangChain series covering agent context engineering and deep agents

## Pricing

Free

## Details

- Type: List
- Category: [AI](https://xiry.app/topics/ai.md)
- Topic: [AI Agents](https://xiry.app/topics/ai/ai-agents.md)
- Open source: no
- Platforms: Web
- For: AI engineers, agent builders, and technical researchers
- Tags: context engineering, ai agents, llm, reading list, anthropic, openai, cursor

## Why it was saved

- [@himanshutwtxs, 15 February 2026](https://x.com/himanshutwtxs/status/2022984467380682856): Direct pointers to the best public writing on agent context engineering, with dates.

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Updated 11 October 2026. Page: https://xiry.app/resources/primary-sources-on-context-engineering

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