Claude Code Project Structure — Every File and Folder Explained

Posted on Sat 18 April 2026 in Engineering • Tagged with claude-code, agentic-engineering, llm-tooling, project-structure

Most Claude Code projects start with a CLAUDE.md and nothing else. Here is the full structure that turns Claude from a coding assistant into an engineering partner.

The complete directory

your-project/
├── CLAUDE.md
├── CLAUDE.local.md
├── mcp.json
└── claude/
    ├── settings.json
    ├── rules/
    │   ├── code-style.md
    │   ├── testing.md
    │   └── api-conventions.md
    ├── commands …

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