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.
Create Mermaid diagrams for flowcharts, sequences, ERDs, and architectures.
Install Mermaid Expert
$ npx skills add aiskillstore/marketplace --skill mermaid-expert -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install aiskillstore/marketplace mermaid-expert --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/aiskillstore/marketplace.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/sickn33/mermaid-expert .claude/skills/mermaid-expert && 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-expert" agent skill from https://github.com/aiskillstore/marketplace/tree/main/skills/sickn33/mermaid-expert into .claude/skills/mermaid-expert/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "mermaid-expert", 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/aiskillstore/marketplace/tree/main/skills/sickn33/mermaid-expertType 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 aiskillstore/marketplace --skill mermaid-expert -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install aiskillstore/marketplace mermaid-expert --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/aiskillstore/marketplace.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/sickn33/mermaid-expert .agents/skills/mermaid-expert && 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-expert" agent skill from https://github.com/aiskillstore/marketplace/tree/main/skills/sickn33/mermaid-expert into .agents/skills/mermaid-expert/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "mermaid-expert", 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 aiskillstore/marketplace --skill mermaid-expert -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install aiskillstore/marketplace mermaid-expert --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/aiskillstore/marketplace.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/sickn33/mermaid-expert .cursor/skills/mermaid-expert && 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-expert" agent skill from https://github.com/aiskillstore/marketplace/tree/main/skills/sickn33/mermaid-expert into .cursor/skills/mermaid-expert/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "mermaid-expert", 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/aiskillstore/marketplace.git --path skills/sickn33/mermaid-expert--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 aiskillstore/marketplace --skill mermaid-expert -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install aiskillstore/marketplace mermaid-expert --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/aiskillstore/marketplace.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/sickn33/mermaid-expert .gemini/skills/mermaid-expert && 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-expert" agent skill from https://github.com/aiskillstore/marketplace/tree/main/skills/sickn33/mermaid-expert into .gemini/skills/mermaid-expert/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "mermaid-expert", 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 aiskillstore/marketplace mermaid-expertInstalls 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 aiskillstore/marketplace --skill mermaid-expert -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/aiskillstore/marketplace.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/sickn33/mermaid-expert .github/skills/mermaid-expert && 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-expert" agent skill from https://github.com/aiskillstore/marketplace/tree/main/skills/sickn33/mermaid-expert into .github/skills/mermaid-expert/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "mermaid-expert", 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 aiskillstore/marketplace --skill mermaid-expert -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install aiskillstore/marketplace mermaid-expert --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/aiskillstore/marketplace.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/sickn33/mermaid-expert .opencode/skills/mermaid-expert && 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-expert" agent skill from https://github.com/aiskillstore/marketplace/tree/main/skills/sickn33/mermaid-expert into .opencode/skills/mermaid-expert/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "mermaid-expert", 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-expert- GitHub stars
- 433
- Used in
- 7 other repos
- Token cost
- ~515 tokens
- SKILL.md length
- 217 words
- Files
- 2
- Skills in repo
- 1,044
- Repo updated
- First seen
- Licence
- None found
At a glance
Create Mermaid diagrams for flowcharts, sequences, ERDs, and architectures.
- Works in 5 steps: Choose the right diagram type for the data → Keep diagrams readable - avoid… → Use consistent styling and colors → …
- Tasks that involve Diagrams
- SKILL.md covers Use this skill when, Do not use this skill when, Instructions and Focus Areas, plus 4 more sections
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Mermaid Expert is an agent skill from aiskillstore/marketplace. Create Mermaid diagrams for flowcharts, sequences, ERDs, and architectures. Masters syntax for all diagram types and styling.
Its SKILL.md is about 520 tokens, which your agent loads only when the skill is triggered. The skill folder holds 1 other file (for example `skill-report.json`).
It sits in Development, covering Diagrams. It works with Mermaid. The repository describes itself as: Security-audited skills for Claude, Codex & Claude Code. One-click install, quality verified.
When your agent uses it
- Tasks that involve Diagrams
Example prompts
- “/mermaid-expert”
Workflow steps
5 steps, taken from the first numbered list in SKILL.md.
- Choose the right diagram type for the data
- Keep diagrams readable - avoid overcrowding
- Use consistent styling and colors
- Add meaningful labels and descriptions
- Test rendering before delivery
What it can do on your machine
Read from SKILL.md and the folder at commit 44923f3. 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 Expert loads about 515 tokens when it runs. Until then it costs about 35 tokens; SKILL.md has 217 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
Without a licence we can't republish the file, so here is its outline and opening line. It has 217 words (~515 tokens).
“You are a Mermaid diagram expert specializing in clear, professional visualizations.”
- name
- mermaid-expert
- risk
- critical
- source
- community
- date_added
- 2026-02-27
Files
SKILL.md and 1 other file in skills/sickn33/mermaid-expert of aiskillstore/marketplace.
- SKILL.md
- skill-report.json
Open the folder on GitHubat commit 44923f3
Used in 7 other repositories
We found 16 copies of this SKILL.md (exact, near-identical or edited) in other folders, from 7 other GitHub owners. This page covers the copy in aiskillstore/marketplace, which our catalogue first saw on October 7, 2026.
- sickn33/agentic-awesome-skillsskills/mermaid-expertplugins/agentic-awesome-skills/skills/mermaid-expert+1 more
- rmyndharis/antigravity-skillsskills/mermaid-expert
- Dokhacgiakhoa/Agent-Skills-4-Vibe-Coding-CLI.agent/skills/mermaid-expert
- agent-skills-hub/agent-skills-hubskills/mermaid-expert
- lingxling/awesome-skills-cnantigravity-awesome-skills/skills/mermaid-expertantigravity-awesome-skills/plugins/agentic-awesome-skills/skills/mermaid-expert+1 more
- benjaminasterA/antigravity-awesome-skillsskills/mermaid-expert
- henryalouf/ruflow.agents/skills/mermaid-expert.agents/skills/antigravity-awesome-skills/skills/mermaid-expert+4 more
Compare with similar skills
Mermaid Expert 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 Expert this skillaiskillstore/marketplace | 433 | 7 repos | ~515 | Automated safety check: Pass | None | |
| Archify Diagramstt-a1i/archify | 82k | — | ~2.9k | Automated safety check: Pass | MIT | |
| Diagram Designcathrynlavery/diagram-design | 49k | 1 repos | ~7.6k | Automated safety check: Pass | MIT | |
| Draw.io Diagram StudioAgents365-ai/drawio-skill | 10k | — | ~2.4k | Automated safety check: Notes | MIT | |
| Pretty Mermaid Rendererimxv/Pretty-mermaid-skills | 1.5k | — | ~2k | Automated safety check: Pass | MIT | |
| Archify Diagram BuilderUnclecheng-li/AI_Animation | 1.5k | 2 repos | ~4.1k | Automated safety check: Pass | MIT |
Similar skills
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
Agents365-ai/drawio-skill
Creates and edits editable draw.io diagrams from descriptions, code, infrastructure files, SQL and API schemas, with sync, review, test and export tools.
Pretty Mermaid Renderer
imxv/Pretty-mermaid-skills
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.
Archify Diagram Builder
Unclecheng-li/AI_Animation
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.
Mermaid
WH-2099/mermaid-skill
Generate Mermaid diagrams from user requirements. An agent skill from WH-2099/mermaid-skill.
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Related
Works with
Categories
Questions about Mermaid Expert
What does Mermaid Expert do?
Create Mermaid diagrams for flowcharts, sequences, ERDs, and architectures. Mermaid Expert is an agent skill from aiskillstore/marketplace. Create Mermaid diagrams for flowcharts, sequences, ERDs, and architectures.
When should I use Mermaid Expert?
Mermaid Expert fits situations like: tasks that involve Diagrams.
How do I install Mermaid Expert in Claude Code?
Run `npx skills add aiskillstore/marketplace --skill mermaid-expert -a claude-code`. Or copy the skill folder (skills/sickn33/mermaid-expert in aiskillstore/marketplace) into .claude/skills/mermaid-expert in your project. Claude Code loads it when a task matches its description.
How do I install Mermaid Expert in Codex?
Run `npx skills add aiskillstore/marketplace --skill mermaid-expert -a codex`. Or copy the skill folder (skills/sickn33/mermaid-expert in aiskillstore/marketplace) into .agents/skills/mermaid-expert in your project. Codex loads it when a task matches its description.
Can I use Mermaid Expert 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 aiskillstore/marketplace --skill mermaid-expert -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-expert, .gemini/skills/mermaid-expert, .github/skills/mermaid-expert and .opencode/skills/mermaid-expert in your project.
What does Mermaid Expert need to run?
SKILL.md names no scripts, command-line tools or credentials: Mermaid Expert is instructions for the agent only.
Does Mermaid Expert 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 Expert 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 Expert use?
No licence was found for Mermaid Expert or its repository. Without one, default copyright applies: ask the author before reusing or redistributing it.
How many tokens does Mermaid Expert use?
About 515 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.
What are the alternatives to Mermaid Expert?
Skills that share tags, products or a category with Mermaid Expert: Archify Diagrams (tt-a1i/archify, 82k stars), Diagram Design (cathrynlavery/diagram-design, 49k stars), Draw.io Diagram Studio (Agents365-ai/drawio-skill, 10k stars) and Pretty Mermaid Renderer (imxv/Pretty-mermaid-skills, 1.5k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Mermaid Expert?
aiskillstore (a GitHub organization) maintains it in aiskillstore/marketplace, which has 433 GitHub stars. The repository holds 1,044 skills in this directory. The repository was last updated on October 10, 2026.
Source: aiskillstore/marketplace on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.