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c4-context

Create C4 system context documentation with Mermaid diagrams and dependency details.

Updated May 5, 2026
Search Tags:#mermaid#personas#user journeys#c4#system documentation#external dependencies#context diagram
One-click install
npx skills add https://github.com/Movchanets/Microservices_Learning --skill c4-context-movchanets
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: c4-context
Source: https://github.com/Movchanets/Microservices_Learning/tree/main/.agents/skills/c4-context
Command: npx skills add https://github.com/Movchanets/Microservices_Learning --skill c4-context-movchanets

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This Skill helps teams turn a complex software system into clear C4 system-context documentation so stakeholders can quickly understand who uses it, what it does, and what it depends on.

Core Features & Use Cases

  • System Overview: Summarize the system’s purpose, scope, and long-term value in plain language.
  • Persona Mapping: Identify human users, programmatic users, and external systems that interact with the solution.
  • Feature and Journey Documentation: Describe major capabilities and map the steps users take to achieve key goals.
  • Dependency Documentation: Record external services, APIs, databases, and event-driven integrations.
  • Use Case: A platform team needs a stakeholder-friendly overview of a marketplace backend, including its users, gateway, services, message broker, and databases, for architecture reviews and onboarding.

Quick Start

Create a C4 context-level document for the system, including its personas, main features, external dependencies, and a Mermaid system context diagram.

Frequently Asked Questions about c4-context

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

FAQPage Schema
How do I create a C4 context diagram for system documentation?▼

To create C4 context documentation, define clear system boundaries and use Mermaid C4 diagrams to map the system, its users, and external dependencies for stakeholder reviews.

What is the best way to map user journeys and personas for architecture reviews?▼

Mapping user journeys and personas involves identifying human and programmatic users, documenting major capabilities, and structuring interactions to align with system boundaries for architecture reviews.

Can I use Mermaid to document external dependencies and APIs?▼

Yes, you can use Mermaid to document external dependencies by recording external services, APIs, databases, and event-driven integrations within a structured system context diagram.

How to document system boundaries and integrations for feature scoping?▼

Document system boundaries and integrations by summarizing system scope in plain language, mapping relationships between external systems, and structuring descriptions of integrations for feature scoping.

When do I need a C4 context model instead of detailed component documentation?▼

You need a C4 context model when explaining a complex software system to stakeholders for onboarding, providing a high-level overview of users and dependencies rather than detailed component documentation.

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