---
author: "Umesh Malik"
canonical: "https://umesh-malik.com/blog/tag/context-engineering"
description: "Explore articles tagged with Context Engineering by Umesh Malik — AI Engineer, LLM & GenAI Developer. Learn Context Engineering best practices, practical tips, and in-depth guides."
title: "Umesh Malik's Blog - Context Engineering Articles | Context Engineering Tutorials"
tokens: 305
generator: "scripts/generate-page-markdown.mjs"
---

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# Context Engineering

2 articles

 [![How server-side compaction replaces a long agent transcript with a single summary block once input tokens cross the trigger, and what is kept versus permanently dropped](https://umesh-malik.com/blog/agent-context-compaction-what-survives-cover.png)

AI Engineering • Aug 12, 2026

### Agent context compaction: keep what the 150K cutoff drops

Agent context compaction drops every block before the summary at 150K tokens. What survives, what instructions silently replaces, and the usage field that lies.

9 min read

Read more →](https://umesh-malik.com/blog/agent-context-compaction-what-survives)

 [![Agent harness design diagram: a model's reasoning discarded each turn versus reasoning retained and context compacted across turns](https://umesh-malik.com/blog/agent-harness-design-arc-agi-3-cover.png)

AI Engineering • Aug 5, 2026

### Agent Harness Design: Why an ARC-AGI-3 Score Tripled

Agent harness design decided a benchmark: OpenAI's ARC-AGI-3 score went 13.3% → 38.3% with zero model changes. What that means for your agent loop.

11 min read

Read more →](https://umesh-malik.com/blog/agent-harness-design-arc-agi-3)