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architecture-map

Map Claude Code's internal architecture to locate modules and understand data flow.

Updated Aug 27, 2026
Search Tags:#architecture#codebase#claude-code#data-flow#tool-system#core-subsystems
One-click install
npx skills add https://github.com/ncy08/clear-claude-code --skill architecture-map-ncy08
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: architecture-map
Source: https://github.com/ncy08/clear-claude-code/tree/main/.claude/skills/architecture-map
Command: npx skills add https://github.com/ncy08/clear-claude-code --skill architecture-map-ncy08

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Architectural guide to Claude Code's source structure, enabling engineers to quickly understand key modules, data flow, and extension points for better navigation and reasoning about the codebase.

Core Features & Use Cases

  • Maps core subsystems (Coordinator, Tool System, MCP Client, Plugin & Skill System, Hook Lifecycle, UI Layer, CLI Entry, Services) and explains their interactions.
  • Shows where skills, tools, and plugins are loaded, how data moves through the system, and where to find implementations.
  • Use cases include locating where a feature is implemented, tracing data flow, and planning integrations or extensions.

Quick Start

Explore the architecture-map to quickly locate module implementations and understand data flow in Claude Code.

Frequently Asked Questions about architecture-map

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I map Claude Code's internal architecture and locate core subsystem implementations?▼

Trace data flow in Claude Code by mapping interactions across the Coordinator, Tool System, Plugin & Skill System, and UI Layer to understand how data moves through the system and where implementations reside.

Where are skills and tools loaded in the Claude Code codebase?▼

Skills and tools in Claude Code are loaded via a frontmatter-based skill loading mechanism, with implementations mapped across the Plugin & Skill System and Tool System to show exactly where extensions and integrations reside.

How does the Claude Code tool system interact with the MCP Client and UI Layer?▼

The tool system interacts with the MCP Client and UI Layer by routing data through core subsystems, enabling the Coordinator to manage tool execution while the UI Layer handles command-line entry and user interface rendering.

Do I need familiarity with the repository structure to navigate Claude Code's architecture?▼

Yes, navigating Claude Code's architecture requires familiarity with the repository structure, the frontmatter-based skill loading mechanism, and the location of modules under src/ to effectively trace data flow and locate implementations.

What is the best way to plan integrations or extensions for Claude Code's core subsystems?▼

Plan integrations or extensions by mapping Claude Code's core subsystems and extension points, identifying where the Plugin & Skill System and Tool System load implementations, and tracing data flow to understand interaction boundaries.

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