Get in Touch

Course Outline

Introduction to DeepSeek Harness

  • Overview of DeepSeek Harness and its role in the ecosystem
  • The "everything is a plugin" design principle
  • Web UI, CLI, and headless operational modes

Installation and Initial Setup

  • Node.js prerequisites and package installation
  • Launching the Web UI using npx
  • Building and executing from source code

Model Configuration

  • Setting the DeepSeek API key
  • Selecting and switching between models
  • Integrating OpenAI-compatible endpoints

Workspaces and Sessions

  • Selecting and switching workspaces
  • The session composer and conversation workflow
  • File reading, editing, and generation

Executing Coding Tasks

  • Summarizing repositories and navigating codebases
  • Running commands and delegating tasks
  • Maintaining and tracking task plans

Permissions and Sandbox Environment

  • Approval workflows and permission policies
  • Restricting file and command access
  • Local and remote sandbox backends

Built-in Tools and Integrations

  • Filesystem, terminal, and shell utilities
  • Support for the Model Context Protocol
  • Integration with the Language Server Protocol

Subagents and Delegation

  • Spawning and forking subagents
  • Provider integration for other coding agents
  • Distributing work across a session

The Cordis Plugin Model

  • Plugins structured as services, events, and effects
  • Shared context and lifecycle management
  • The absence of a privileged core

Profiles, Bundles, and Configuration

  • Profile and bundle layering strategies
  • Patching configuration via cordis.patch.yml
  • Inspecting the boot sequence and tree structure

Core Subsystems

  • The append-only session log
  • Assembly of system prompts and tool schemas
  • The agent loop and turn processing flow

Events and Extension Points

  • Session, agent, and capability-related events
  • Waterfall and interceptor event patterns
  • Aligning behavior with specific extension points

Plugin Development

  • Registering services on context keys
  • Adding custom tools and model adapters
  • Publishing and discovering plugins

SDK, Headless Mode, and Automation

  • Controlling the harness from external processes
  • Utilizing the TypeScript and Python SDKs
  • Automation via CLI and headless mode

Requirements

  • A solid grasp of software development fundamentals
  • Practical experience with command-line interfaces and Git
  • Basic proficiency in JavaScript or TypeScript

Target Audience

  • Software developers
  • AI and machine learning engineers
  • DevOps and platform engineers
 14 Hours

Related Categories