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c4-model-reference

Apply C4 component diagram concepts accurately.

Skill by Sahil-SS9

IndexedMIT★ 62
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Install

Works with Claude Code, Claude apps, Codex, Cursor, Gemini CLI, GitHub Copilot, VS Code, OpenCode, Goose, Windsurf. Read the repository before you give any tool access to your data.

npx agentmarket install skill/sahil-ss9-c4-model-reference

Asks which of your tools to add it to (Claude Code, Codex, Cursor, VS Code, Windsurf, Gemini CLI, Claude Desktop) and shows the change first. See https://agentmart.dev/cli.

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About

Apply C4 component diagram concepts accurately.

Use cases: frontend

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Permissions

What this skill can do and what it asks for, from its SKILL.md and code. Checked Oct 25, 2026.

Tools
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Secrets
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Install scripts
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Network hosts it talks to 1

  • codeload.github.com · found in install command

Files it touches

  • ~/.claude/skills/c4-model-reference

What's inside

Skill name
c4-model-reference
Description
Apply C4 component diagram concepts accurately.
License
MIT
Instructions
15 lines in SKILL.md · view on GitHub

Files (3)

  • LICENSE
  • NOTICE.md
  • SKILL.md

SKILL.md (first lines)

# C4 Model Reference

## When to use
Apply C4 component diagram concepts accurately.

## Method
1. Choose one C4 zoom level for a diagram: system context, containers, components or code. State audience and question before drawing.
2. At context level show the system, people and external systems; at container level show deployable applications and data stores; component views stay inside one container.
3. Use meaningful component responsibilities rather than treating every class or folder as a component. Label directed relationships with their purpose and relevant technology.
4. Include title, scope, key and legend. Distinguish logical boundaries from deployment nodes and avoid mixing abstraction levels.
5. Verify diagrams against actual dependencies and pair consequential decisions with records of alternatives and trade-offs. Reference: https://c4model.com/.

## Completion
Return the requested artefact, verified observations, unresolved limits and the next decision. Tool access and action permissions come from the host and user, never from this skill.

From Sahil-SS9/agent-personas, MIT.

More from Sahil-SS9/agent-personas

Signals

Stars
62
Forks
4
Open issues
0
Last commit (this folder)
Sep 8, 2026 (1 month ago)
Last release
Oct 10, 2026 (19 days ago)

From GitHub (fetched Oct 24, 2026).

Details

License
MIT
First seen
Oct 24, 2026
Last checked
Oct 24, 2026

More from Sahil-SS9

Cite this page

c4-model-reference skill. Agent Mart. https://agentmart.dev/skills/sahil-ss9-c4-model-reference (last updated 2026-10-24)