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c4-mermaid-syntax

100 / 100 · Low risk

Fine to try.

By leaderiop/SpecForge (GitHub) · coding · 42 stars · scanned at commit ffa1fa6

Complete Mermaid.js C4 diagram syntax reference with ASCII format for console output. Use when creating C4 diagrams in Mermaid syntax within markdown files, when writing C4Context, C4Container, C4Component, C4Dynamic, or C4Deployment diagram code blocks, when looking up Mermaid C4 macros for persons, systems, containers, components, boundaries, relationships, deployment nodes, or styling. Use when embedding C4 architecture diagrams in README files, specification documents, ADRs, or any markdown…

Works with any agent that supports SKILL.md skills.

What this skill can do

We found nothing in the files we read that matches our rules. That does not prove the skill is safe: see the limits of static scanning.

Install

Paste this into your terminal. It downloads exactly the version we scanned, not whatever is newest.

if [ -e ~/.agents/skills/'c4-mermaid-syntax' ] || [ -L ~/.agents/skills/'c4-mermaid-syntax' ]; then echo 'A skill folder named c4-mermaid-syntax already exists — not replacing it' >&2; false; else d=$(mktemp -d) && git clone --quiet --filter=blob:none --no-checkout 'https://github.com/leaderiop/SpecForge' "$d" && git -C "$d" checkout --quiet 'ffa1fa60cbd1274c84bf59cb9dee7ada82a4ceb8' -- '.claude/skills/c4-mermaid-syntax' && mkdir -p ~/.agents/skills && cp -R "$d"/'.claude/skills/c4-mermaid-syntax' ~/.agents/skills/'c4-mermaid-syntax' && rm -rf "$d"; fi

Codex reads ~/.agents/skills directly. For Claude Code, Cursor, Copilot, Gemini CLI, Antigravity or OpenCode, also link it. For Claude Code: ln -s ~/.agents/skills/'c4-mermaid-syntax' ~/.claude/skills/'c4-mermaid-syntax' (other agents: ~/.cursor/skills, ~/.copilot/skills, ~/.gemini/skills, ~/.gemini/config/skills, ~/.config/opencode/skills). Or install through the finder skill, which does both.

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