Sep 26, 2026 · Artificial Intelligence

DeepSeek Harness Architecture: Coordinating Multi-Turn LLM Calls, Tools & State

This article analyzes DeepSeek Harness's architecture, detailing its plugin assembly via Cordis, core agent loop with turn/step boundaries, append-only Session log with surface projection, tool pipeline with pre/post-execute hooks and concurrency control, sandbox-based security isolation, and exception handling via retry, compaction, and cancellation mechanisms.

CordisDeepSeek HarnessLLM orchestration

0 likes · 18 min read

DeepSeek Harness Architecture: Coordinating Multi-Turn LLM Calls, Tools & State

AI Code to Success

Aug 28, 2026 · Artificial Intelligence

DeepSeek Harness Tutorial: Build Your First Agent Tool with defineTool

This tutorial demonstrates how to create a functional publish_article tool for AI agents using DeepSeek Harness's defineTool, covering the five core components, output schema versus render separation, execution pipeline hooks, and real-world WeChat API permission constraints.

API PermissionsAgent ToolsDeepSeek Harness

0 likes · 13 min read

DeepSeek Harness Tutorial: Build Your First Agent Tool with defineTool

Tool Pipeline

DeepSeek Harness Architecture: Coordinating Multi-Turn LLM Calls, Tools & State

DeepSeek Harness Tutorial: Build Your First Agent Tool with defineTool