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dependency-graph

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Generates a Mermaid dependency graph showing import relationships between modules. Use when analyzing coupling, finding circular deps, or planning refactors.

QUICK START

How to use this skill

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  1. Open your project in Codex.
  2. Copy the prompt below and paste it into your agent.
  3. Review the proposed files and risks before you approve installation.
Prompt to paste
I want to install this Agent Skill for this project in Codex.

Source SKILL.md: https://github.com/majiayu000/claude-skill-registry/blob/HEAD/skills/analysis/dependency-graph-athola-claude-night-market/SKILL.md

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First, summarize what it does, its dependencies, license status if identifiable, and any risks. Show the exact files you propose to add under .agents/skills/dependency-graph/. Do not write files or run scripts until I approve.

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Dependency Graph

Generate a Mermaid flowchart showing import and dependency relationships between modules, packages, or plugins.

When To Use

  • Understanding what depends on what
  • Finding circular dependencies
  • Analyzing coupling between modules
  • Planning refactoring by seeing dependency impact
  • Answering "what breaks if I change this?"

Workflow

Step 1: Explore the Codebase

Dispatch the codebase explorer agent:

Agent(cartograph:codebase-explorer)
Prompt: Explore [scope] and return a structural model.
Focus on import statements and cross-module dependencies
for a dependency graph. Track both internal and external
imports.

Step 2: Generate Mermaid Syntax

Transform the structural model into a Mermaid flowchart with directed edges representing dependencies.

Rules for dependency graphs:

  • Use flowchart LR (left-right) for dependency direction
  • Each node is a module or package
  • Edges point from dependent to dependency (A --> B means "A depends on B")
  • Color-code by dependency type:
    • Default arrows for internal dependencies
    • Dotted arrows (-.->) for external/optional deps
    • Thick arrows (==>) for critical path dependencies
  • Group into subgraphs by package/plugin
  • If depth parameter given, limit transitive dependencies
  • Highlight circular dependencies with red styling

Example output:

flowchart LR
    subgraph sanctum[Sanctum]
        commit[commit]
        pr_prep[pr_prep]
        workspace[workspace]
    end

    subgraph leyline[Leyline]
        git[git_platform]
        errors[error_patterns]
    end

    subgraph external[External]
        subprocess[subprocess]
        json[json]
    end

    commit --> git
    commit --> json
    pr_prep --> workspace
    pr_prep --> git
    workspace --> errors
    workspace -.-> subprocess

Step 3: Render via MCP

Call the Mermaid Chart MCP to render:

mcp__claude_ai_Mermaid_Chart__validate_and_render_mermaid_diagram
  prompt: "Dependency graph of [scope]"
  mermaidCode: [generated syntax]
  diagramType: "flowchart"
  clientName: "claude-code"

If rendering fails, fix syntax and retry (max 2 retries).

Step 4: Present Results

Show the rendered diagram with analysis notes:

  • Total modules and dependency count
  • Most-depended-on modules (high fan-in)
  • Modules with most dependencies (high fan-out)
  • Circular dependencies if any detected