Archify Diagrams
tt-a1i/archify
Creates interactive architecture, workflow, sequence, data-flow and lifecycle diagrams as standalone HTML with inline SVG, themes and image or video export.
This skill should be used when a user asks to explain a complex idea, concept, or system architecture, or when a diagram would be helpful to visualize control flows, system architectures, data…
Install Mermaid Visualizer
$ npx skills add closedloop-ai/claude-plugins --skill mermaid-visualizer -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install closedloop-ai/claude-plugins mermaid-visualizer --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/closedloop-ai/claude-plugins.git skills-src && mkdir -p .claude/skills && cp -r skills-src/plugins/code/skills/mermaid-visualizer .claude/skills/mermaid-visualizer && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "mermaid-visualizer" agent skill from https://github.com/closedloop-ai/claude-plugins/tree/main/plugins/code/skills/mermaid-visualizer into .claude/skills/mermaid-visualizer/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "mermaid-visualizer", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/closedloop-ai/claude-plugins/tree/main/plugins/code/skills/mermaid-visualizerType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add closedloop-ai/claude-plugins --skill mermaid-visualizer -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install closedloop-ai/claude-plugins mermaid-visualizer --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/closedloop-ai/claude-plugins.git skills-src && mkdir -p .agents/skills && cp -r skills-src/plugins/code/skills/mermaid-visualizer .agents/skills/mermaid-visualizer && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "mermaid-visualizer" agent skill from https://github.com/closedloop-ai/claude-plugins/tree/main/plugins/code/skills/mermaid-visualizer into .agents/skills/mermaid-visualizer/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "mermaid-visualizer", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add closedloop-ai/claude-plugins --skill mermaid-visualizer -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install closedloop-ai/claude-plugins mermaid-visualizer --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/closedloop-ai/claude-plugins.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/plugins/code/skills/mermaid-visualizer .cursor/skills/mermaid-visualizer && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "mermaid-visualizer" agent skill from https://github.com/closedloop-ai/claude-plugins/tree/main/plugins/code/skills/mermaid-visualizer into .cursor/skills/mermaid-visualizer/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "mermaid-visualizer", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/closedloop-ai/claude-plugins.git --path plugins/code/skills/mermaid-visualizer--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add closedloop-ai/claude-plugins --skill mermaid-visualizer -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install closedloop-ai/claude-plugins mermaid-visualizer --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/closedloop-ai/claude-plugins.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/plugins/code/skills/mermaid-visualizer .gemini/skills/mermaid-visualizer && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "mermaid-visualizer" agent skill from https://github.com/closedloop-ai/claude-plugins/tree/main/plugins/code/skills/mermaid-visualizer into .gemini/skills/mermaid-visualizer/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "mermaid-visualizer", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install closedloop-ai/claude-plugins mermaid-visualizerInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add closedloop-ai/claude-plugins --skill mermaid-visualizer -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/closedloop-ai/claude-plugins.git skills-src && mkdir -p .github/skills && cp -r skills-src/plugins/code/skills/mermaid-visualizer .github/skills/mermaid-visualizer && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "mermaid-visualizer" agent skill from https://github.com/closedloop-ai/claude-plugins/tree/main/plugins/code/skills/mermaid-visualizer into .github/skills/mermaid-visualizer/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "mermaid-visualizer", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add closedloop-ai/claude-plugins --skill mermaid-visualizer -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install closedloop-ai/claude-plugins mermaid-visualizer --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/closedloop-ai/claude-plugins.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/plugins/code/skills/mermaid-visualizer .opencode/skills/mermaid-visualizer && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "mermaid-visualizer" agent skill from https://github.com/closedloop-ai/claude-plugins/tree/main/plugins/code/skills/mermaid-visualizer into .opencode/skills/mermaid-visualizer/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "mermaid-visualizer", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
mermaid-visualizer- GitHub stars
- 122
- Token cost
- ~525 tokens
- SKILL.md length
- 220 words
- Files
- 2 (incl. references)
- Skills in repo
- 41
- Repo updated
- First seen
- Licence
- Apache-2.0
At a glance
This skill should be used when a user asks to explain a complex idea, concept, or system architecture, or when a diagram would be helpful to visualize control flows, system architectures, data…
- Works in 6 steps: Understand the concept being visualized… → Select the appropriate diagram type from… → Reference the Mermaid syntax guide in… → …
- Tasks that involve Diagrams
- SKILL.md covers Purpose, How to Use This Skill, Diagram Types Supported and Key Mermaid Concepts
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Mermaid Visualizer is an agent skill from closedloop-ai/claude-plugins. This skill should be used when a user asks to explain a complex idea, concept, or system architecture, or when a diagram would be helpful to visualize control flows, system architectures, data flows, state machines, sequence diagrams, or entity relationships.
Its SKILL.md is about 530 tokens, which your agent loads only when the skill is triggered. The skill folder holds 2 other files, including reference files (for example `references/mermaid-syntax.md`).
It sits in Development, covering Diagrams. It works with Mermaid. The repository describes itself as: Open-source Claude Code plugins for multi-agent software delivery. Plan-first SDLC workflow, code review, LLM quality judges, and self-learning — grounded in your codebase… The licence is Apache-2.0.
When your agent uses it
- Tasks that involve Diagrams
Example prompts
- “/mermaid-visualizer”
Workflow steps
6 steps, taken from the first numbered list in SKILL.md.
- Understand the concept being visualized by reviewing the user's description
- Select the appropriate diagram type from the diagram type options below
- Reference the Mermaid syntax guide in references/mermaid-syntax.md for correct syntax
- Create the diagram using Mermaid markdown syntax
- Embed the diagram in the response using markdown code fence with mermaid language identifier
- Follow best practices from references/mermaid-syntax.md to ensure clarity and correctness
What it can do on your machine
Read from SKILL.md and the folder at commit 476b54c. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
No scripts in the folder and no shell commands in SKILL.md.
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
Mermaid Visualizer loads about 525 tokens when it runs, and up to ~1.7k if it reads all its reference files. Until then it costs about 70 tokens; SKILL.md has 220 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
Safety
Auto-check passed
The automated check found no risky patterns in SKILL.md.
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.
SKILL.md
The full file from closedloop-ai/claude-plugins at commit 476b54c, republished under its Apache-2.0 licence (© closedloop-ai). 220 words, ~525 tokens.
Download SKILL.mdSave it as
.claude/skills/mermaid-visualizer/SKILL.md (or your agent's skills folder). This skill also uses 1 other file; get the full folder from GitHub.- name
- mermaid-visualizer
- description
- This skill should be used when a user asks to explain a complex idea, concept, or system architecture, or when a diagram would be helpful to visualize control flows, system architectures, data flows, state machines, sequence diagrams, or entity relationships.
Mermaid Visualizer
Purpose
To create clear, effective Mermaid diagrams that visualize complex concepts, system architectures, and control flows. This skill provides comprehensive guidance for generating diagrams that aid understanding of intricate systems and processes.
How to Use This Skill
- Understand the concept being visualized by reviewing the user's description
- Select the appropriate diagram type from the diagram type options below
- Reference the Mermaid syntax guide in
references/mermaid-syntax.mdfor correct syntax - Create the diagram using Mermaid markdown syntax
- Embed the diagram in the response using markdown code fence with
mermaidlanguage identifier - Follow best practices from
references/mermaid-syntax.mdto ensure clarity and correctness
Diagram Types Supported
- Flowcharts: Decision trees, process flows, control flows
- Sequence Diagrams: Interactions between components or systems over time
- State Diagrams: State transitions and triggers
- Class Diagrams: Object-oriented relationships and hierarchies
- Entity Relationship Diagrams: Database schemas and data relationships
- System Architecture Diagrams: Component relationships and service interactions
Key Mermaid Concepts
Node Syntax: Use NodeID[Label] for rectangular nodes, {Decision} for diamonds, (Rounded) for rounded nodes.
Edge Syntax: Connect nodes with --> for arrows, -.-> for dotted lines, and |Label| for edge descriptions.
Prohibited Symbols: Avoid unescaped quotes, pipes, brackets, colons, and semicolons in node IDs. Use underscores or hyphens for spaces in IDs, and quoted strings for complex labels.
For detailed syntax guidance, refer to references/mermaid-syntax.md.
© closedloop-ai, Apache-2.0. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Files
SKILL.md and 1 other file (references) in plugins/code/skills/mermaid-visualizer of closedloop-ai/claude-plugins.
- SKILL.md
- references/mermaid-syntax.md
Open the folder on GitHubat commit 476b54c
Compare with similar skills
Mermaid Visualizer next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Mermaid Visualizer this skillclosedloop-ai/claude-plugins | 122 | — | ~525 | Automated safety check: Pass | Apache-2.0 | |
| Archify Diagramstt-a1i/archify | 79k | — | ~2.9k | Automated safety check: Pass | MIT | |
| Diagram Designcathrynlavery/diagram-design | 45k | 1 repos | ~7.5k | Automated safety check: Pass | MIT | |
| Draw.io Diagram StudioAgents365-ai/drawio-skill | 10k | — | ~2.4k | Automated safety check: Notes | MIT | |
| Code Graph Mermaid Diagramstrailofbits/skills | 7.4k | 1 repos | ~1.7k | Automated safety check: Pass | CC-BY-SA-4.0 | |
| Pretty Mermaid Rendererimxv/Pretty-mermaid-skills | 1.5k | — | ~2k | Automated safety check: Pass | MIT |
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Diagram Design
cathrynlavery/diagram-design
Creates branded diagrams, from architecture, flowchart and sequence to charts and maps, as self-contained HTML with inline SVG, with import from draw.io, Mermaid and Excalidraw.
Draw.io Diagram Studio
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Pretty Mermaid Renderer
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Writes and renders Mermaid diagrams as themed SVG, PNG or terminal ASCII and Unicode art with a bundled Node.js CLI that needs no browser.
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Builds validated architecture, workflow, sequence, data-flow and lifecycle diagrams as standalone interactive HTML from a small JSON spec, with optional motion and image export.
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Questions about Mermaid Visualizer
What does Mermaid Visualizer do?
This skill should be used when a user asks to explain a complex idea, concept, or system architecture, or when a diagram would be helpful to visualize control flows, system architectures, data…. Mermaid Visualizer is an agent skill from closedloop-ai/claude-plugins. This skill should be used when a user asks to explain a complex idea, concept, or system architecture, or when a diagram would be helpful to visualize control flows, system architectures, data flows, state machines, sequence diagrams, or entity relationships.
When should I use Mermaid Visualizer?
Mermaid Visualizer fits situations like: tasks that involve Diagrams.
How do I install Mermaid Visualizer in Claude Code?
Run `npx skills add closedloop-ai/claude-plugins --skill mermaid-visualizer -a claude-code`. Or copy the skill folder (plugins/code/skills/mermaid-visualizer in closedloop-ai/claude-plugins) into .claude/skills/mermaid-visualizer in your project. Claude Code loads it when a task matches its description.
How do I install Mermaid Visualizer in Codex?
Run `npx skills add closedloop-ai/claude-plugins --skill mermaid-visualizer -a codex`. Or copy the skill folder (plugins/code/skills/mermaid-visualizer in closedloop-ai/claude-plugins) into .agents/skills/mermaid-visualizer in your project. Codex loads it when a task matches its description.
Can I use Mermaid Visualizer in Cursor, Gemini CLI or GitHub Copilot?
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add closedloop-ai/claude-plugins --skill mermaid-visualizer -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/mermaid-visualizer, .gemini/skills/mermaid-visualizer, .github/skills/mermaid-visualizer and .opencode/skills/mermaid-visualizer in your project.
What does Mermaid Visualizer need to run?
SKILL.md names no scripts, command-line tools or credentials: Mermaid Visualizer is instructions for the agent only.
Does Mermaid Visualizer access the network?
SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.
Is Mermaid Visualizer safe to install?
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.
What licence does Mermaid Visualizer use?
Mermaid Visualizer is published under the Apache-2.0 licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does Mermaid Visualizer use?
About 525 tokens (SKILL.md is roughly 2.1k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 1.2k tokens, read only when the agent opens those files.
What are the alternatives to Mermaid Visualizer?
Skills that share tags, products or a category with Mermaid Visualizer: Archify Diagrams (tt-a1i/archify, 79k stars), Diagram Design (cathrynlavery/diagram-design, 45k stars), Draw.io Diagram Studio (Agents365-ai/drawio-skill, 10k stars) and Code Graph Mermaid Diagrams (trailofbits/skills, 7.4k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Mermaid Visualizer?
closedloop-ai (a GitHub organization) maintains it in closedloop-ai/claude-plugins, which has 122 GitHub stars. The repository holds 41 skills in this directory. The repository was last updated on October 7, 2026.
Source: closedloop-ai/claude-plugins on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.