How Coding Agents Work: A Deep Dive into Opencode

Описание: 📌 Chapters
00:00:00 - Introduction to Coding Agents & Open Code
00:00:22 - The Basic Workflow: Installation and Setup
00:01:10 - Interacting with the Agent via the TUI (Text User Interface)
00:01:36 - How LLMs Use Tools to Interact with Files
00:03:14 - Open Code's Server-Client Architecture and Event Bus
00:05:52 - Differentiating a Coding Agent from a Vanilla LLM
00:06:01 - Built-in Tools and Extending Capabilities with MCP Servers
00:07:04 - A Practical Example: Building an HTTP Client
00:09:26 - Exploring the Read Tool and Its Parameters
00:10:43 - Tool Call and Response Example
00:11:21 - The Role of the AI SDK
00:11:44 - The Read Tool's Safety Checks
00:14:04 - Exploring the Git Tool
00:17:19 - A Glimpse at the JavaScript Back End
00:20:13 - Session Management & Fresh Context Windows
00:21:40 - The Role of the AI SDK Backend in Tool Execution
00:24:17 - TUI
00:26:21 - Conclusion

Blog post: https://cefboud.com/posts/coding-agen...

🎥 Video Summary:
This video explores the powerful concept of coding agents—LLMs that can do more than just generate text. These agents can run commands, edit codebases, and use developer tools to act more like true assistants.

We walk through the setup of Open Code, an open-source framework for building coding agents. You'll learn how to install it, configure it (including setting up API keys), and use it via a Text User Interface (TUI). Notably, Open Code is model-agnostic, supporting both hosted and local models.

The video then dives into Open Code’s client-server architecture, explaining how the TUI communicates with the backend through an event bus, enabling real-time updates without blocking the user.

One of the core differences between a basic LLM and a true coding agent is tool usage. Open Code comes with built-in tools like:

bash — for shell commands

edit — for modifying code

read — for safely reading files

These tools let the agent perform real-world tasks just like a developer. You’ll also learn how to extend Open Code by plugging in external MCP servers to add even more functionality.

Through a practical demo, you'll see how the agent can be used to build an HTTP endpoint using the edit tool, request user confirmation, and execute changes. The video wraps up with a deep dive into the read tool, showing how tool calls are generated and safely executed by the backend.

Whether you're exploring AI coding agents for the first time or looking to expand your LLM’s capabilities, this video is a practical deep dive into what's possible with Open Code.

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