How to Design an OpenHarness Style Agent Runtime with Tools, Memory, Permissions, Skills, and Multi-Agent Coordination

Summary

<p>In this tutorial, we build an OpenHarness style agent harness from scratch to see how a practical agent system works. We recreate the core building blocks: tool use, typed tool schemas, permissions, lifecycle hooks, memory, skills, context compaction, retry logic, cost tracking, and multi-agent coordination. We expose the full control flow instead of treating the framework as a black box. We keep everything runnable so we can experiment without API keys or extra infrastructure.</p> <p>The post <a href="https://www.marktechpost.com/2026/06/24/how-to-design-an-openharness-style-agent-runtime-with-tools-memory-permissions-skills-and-multi-agent-coordination/">How to Design an OpenHarness Style Agent Runtime with Tools, Memory, Permissions, Skills, and Multi-Agent Coordination</a> appeared first on <a href="https://www.marktechpost.com">MarkTechPost</a>.</p>