---
title: "Beyond the Model: A Practitioner's Guide to Harness Engineering"
url: https://daily.dev/posts/beyond-the-model-a-practitioner-s-guide-to-harness-engineering-jtpc3flru
source_url: https://www.youtube.com/watch?v=19v0011R-sI
type: video:youtube
source: "Temporal"
published: 2026-05-29T15:52:12.728Z
updated: 2026-05-29T17:39:23.284Z
tags: ["ai-agents", "context-engineering"]
reading_time: 53
upvotes: 0
comments: 0
language: en
---

> ## Documentation Index
> Fetch the complete documentation index at: https://daily.dev/llms.txt
> Use this file to discover all available pages before exploring further.

# Beyond the Model: A Practitioner's Guide to Harness Engineering

**[Temporal](https://daily.dev/sources/temporal)** · 53 min read · 0 upvotes · 0 comments

## Summary

A practitioner-focused webinar covering agent harness engineering — the infrastructure around LLMs that determines agent quality beyond the model itself. Presenters from Temporal and Grid Dynamics define the harness concept, demonstrate durable execution using Temporal workflows, and show a real-world demo combining ReAct and CodeAct patterns to generate a marketing HTML page by scraping Temporal's customer case studies. Key topics include context engineering, guardrails, agent skills, the hybrid ReAct+CodeAct approach, and how Temporal's durable execution handles failures, long-running workflows, and human-in-the-loop approval scenarios. Temporal's 'continue as new' primitive and large payload support for AI workloads are also discussed.

## Full article

daily.dev links to this article rather than hosting it. Read it at the original source: <https://www.youtube.com/watch?v=19v0011R-sI>

---

Tags: [#ai-agents](https://daily.dev/tags/ai-agents), [#context-engineering](https://daily.dev/tags/context-engineering)

[View this post on daily.dev](https://daily.dev/posts/beyond-the-model-a-practitioner-s-guide-to-harness-engineering-jtpc3flru)
