Why the zhangxuefeng-skill Repository Has No `src/` Directory: Understanding Agent-Skill Architecture

The zhangxuefeng-skill repository intentionally lacks a src/ directory because it is a declarative Agent-Skill composed entirely of markdown consumed by external runtimes like Claude Code, Codex, or Cursor.

The zhangxuefeng-skill project by alchaincyf packages a specialized AI persona based on Chinese education counselor Zhang Xuefeng. Unlike conventional software repositories that organize compiled code or scripts in a src/ folder, this project follows the Agent-Skill pattern where executable logic resides in the runtime environment rather than the repository itself.

What Is an Agent-Skill?

An Agent-Skill is a portable, declarative configuration that defines an AI assistant's behavior through structured markdown rather than imperative code. According to the repository structure in alchaincyf/zhangxuefeng-skill, these skills contain conversation examples, reference materials, and a central SKILL.md file that tells the host runtime how to behave.

Traditional repositories use src/ to house JavaScript, Python, or other source files that get compiled or interpreted. Agent-Skills invert this model: the "source" is natural language instructions and example conversations stored in markdown files.

Repository Structure Without a src/ Folder

The top-level layout of zhangxuefeng-skill demonstrates why no source directory is necessary. The repository contains only documentation and configuration files:

• README.md – Human-readable overview, installation instructions, and usage snippets located at the repository root.
• SKILL.md – The actual skill definition that agents import when running npx skills add ….
• examples/demo-conversation.md – Sample conversation demonstrating the skill's output style and knowledge boundaries.
• references/research/01-writings.md – Research files distilled from Zhang Xuefeng's public statements used to train the skill's persona.
• assets/ – Images and media files such as the hero animation.

Because the skill is defined entirely in markdown, there is no need for a src/ folder containing compiled code or implementation files.

How SKILL.md Replaces Traditional Source Code

In SKILL.md, the repository contains the declarative definition that replaces traditional source code. This file instructs the Agent-Skill framework (such as Claude Code, Codex, or Cursor) on how to adopt Zhang Xuefeng's communication style, vocabulary, and analytical framework when discussing educational choices.

The runtime parses SKILL.md and examples/demo-conversation.md to understand context windows, tone settings, and domain knowledge. All runtime-specific code is supplied by the Agent-Skill framework, not by source files within this repository.

Installing and Using the Skill

Since there is no src/ directory to build or compile, installation requires only a single command. The following example from the repository's README.md demonstrates how to load the skill across compatible runtimes:

# One-line install (recommended; works across runtimes)

npx skills add alchaincyf/zhangxuefeng-skill

After installation, you invoke the skill through natural language prompts. The runtime loads the markdown definitions from the repository root and applies them to the conversation context:

# After installing, tell your agent:

> 用张雪峰的视角帮我分析这个专业选择
> 张雪峰会怎么看这个职业方向？
> 切换到张雪峰，我孩子要填志愿了

These commands trigger the skill's behavior; no files are executed from a src/ directory because the logic is embedded in the runtime's interpretation of SKILL.md.

Summary

The absence of a src/ directory in zhangxuefeng-skill reflects the repository's purpose as a declarative Agent-Skill rather than a traditional software package:

• No compilation required: The repository contains only markdown files, not source code requiring build steps.
• Runtime-hosted logic: All executable behavior is provided by the Agent-Skill framework (Claude Code, Codex, Cursor, etc.).
• SKILL.md as the core: The SKILL.md file at the repository root serves as the functional definition traditionally found in source directories.
• Example-driven configuration: Conversation examples in examples/demo-conversation.md define the skill's capabilities without imperative programming.

Frequently Asked Questions

Does zhangxuefeng-skill contain any source code files?

No. The repository contains only markdown documentation and configuration files. The SKILL.md file acts as the skill's definition, while supporting files in examples/ and references/ provide context and training material. All code execution happens within the Agent-Skill runtime.

Where is the executable logic stored if not in src/?

The executable logic resides in the Agent-Skill runtime (such as Claude Code, Codex, or Cursor). The repository stores only declarative instructions in SKILL.md that tell the runtime how to modify its behavior. The runtime interprets these markdown files to adopt Zhang Xuefeng's persona during conversations.

How do I install zhangxuefeng-skill without a src/ directory?

Install the skill using the Agent-Skill package manager via npx skills add alchaincyf/zhangxuefeng-skill. Because the repository contains no source code requiring compilation, installation is immediate and requires no build steps. The runtime downloads the markdown files directly and makes the skill available for natural language invocation.

Can I modify the skill's behavior without editing source code?

Yes. Since the skill is configured through markdown in SKILL.md and examples/demo-conversation.md, you can modify the behavior by editing these text files. Changes to the persona instructions, example conversations, or reference materials in references/research/ will immediately alter how the runtime interprets the skill, no code compilation required.

{
  "mcpServers": {
    "instagit": {
      "command": "npx",
      "args": ["-y", "instagit@latest"]
    }
  }
}