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.
Agent skill
Mermaid Er Diagram Creator
by jeremylongshore in jeremylongshore/tons-of-skills-marketplace
Create mermaid er diagram creator operations. An agent skill from jeremylongshore/tons-of-skills-marketplace.
Install Mermaid Er Diagram Creator
$ npx skills add jeremylongshore/tons-of-skills-marketplace --skill mermaid-er-diagram-creator -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install jeremylongshore/tons-of-skills-marketplace mermaid-er-diagram-creator --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/jeremylongshore/tons-of-skills-marketplace.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/18-visual-content/mermaid-er-diagram-creator .claude/skills/mermaid-er-diagram-creator && 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-er-diagram-creator" agent skill from https://github.com/jeremylongshore/tons-of-skills-marketplace/tree/main/skills/18-visual-content/mermaid-er-diagram-creator into .claude/skills/mermaid-er-diagram-creator/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "mermaid-er-diagram-creator", 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/jeremylongshore/tons-of-skills-marketplace/tree/main/skills/18-visual-content/mermaid-er-diagram-creatorType 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 jeremylongshore/tons-of-skills-marketplace --skill mermaid-er-diagram-creator -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install jeremylongshore/tons-of-skills-marketplace mermaid-er-diagram-creator --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/jeremylongshore/tons-of-skills-marketplace.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/18-visual-content/mermaid-er-diagram-creator .agents/skills/mermaid-er-diagram-creator && 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-er-diagram-creator" agent skill from https://github.com/jeremylongshore/tons-of-skills-marketplace/tree/main/skills/18-visual-content/mermaid-er-diagram-creator into .agents/skills/mermaid-er-diagram-creator/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "mermaid-er-diagram-creator", 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 jeremylongshore/tons-of-skills-marketplace --skill mermaid-er-diagram-creator -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install jeremylongshore/tons-of-skills-marketplace mermaid-er-diagram-creator --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/jeremylongshore/tons-of-skills-marketplace.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/18-visual-content/mermaid-er-diagram-creator .cursor/skills/mermaid-er-diagram-creator && 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-er-diagram-creator" agent skill from https://github.com/jeremylongshore/tons-of-skills-marketplace/tree/main/skills/18-visual-content/mermaid-er-diagram-creator into .cursor/skills/mermaid-er-diagram-creator/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "mermaid-er-diagram-creator", 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/jeremylongshore/tons-of-skills-marketplace.git --path skills/18-visual-content/mermaid-er-diagram-creator--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 jeremylongshore/tons-of-skills-marketplace --skill mermaid-er-diagram-creator -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install jeremylongshore/tons-of-skills-marketplace mermaid-er-diagram-creator --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/jeremylongshore/tons-of-skills-marketplace.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/18-visual-content/mermaid-er-diagram-creator .gemini/skills/mermaid-er-diagram-creator && 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-er-diagram-creator" agent skill from https://github.com/jeremylongshore/tons-of-skills-marketplace/tree/main/skills/18-visual-content/mermaid-er-diagram-creator into .gemini/skills/mermaid-er-diagram-creator/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "mermaid-er-diagram-creator", 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 jeremylongshore/tons-of-skills-marketplace mermaid-er-diagram-creatorInstalls 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 jeremylongshore/tons-of-skills-marketplace --skill mermaid-er-diagram-creator -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/jeremylongshore/tons-of-skills-marketplace.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/18-visual-content/mermaid-er-diagram-creator .github/skills/mermaid-er-diagram-creator && 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-er-diagram-creator" agent skill from https://github.com/jeremylongshore/tons-of-skills-marketplace/tree/main/skills/18-visual-content/mermaid-er-diagram-creator into .github/skills/mermaid-er-diagram-creator/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "mermaid-er-diagram-creator", 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 jeremylongshore/tons-of-skills-marketplace --skill mermaid-er-diagram-creator -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install jeremylongshore/tons-of-skills-marketplace mermaid-er-diagram-creator --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/jeremylongshore/tons-of-skills-marketplace.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/18-visual-content/mermaid-er-diagram-creator .opencode/skills/mermaid-er-diagram-creator && 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-er-diagram-creator" agent skill from https://github.com/jeremylongshore/tons-of-skills-marketplace/tree/main/skills/18-visual-content/mermaid-er-diagram-creator into .opencode/skills/mermaid-er-diagram-creator/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "mermaid-er-diagram-creator", 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-er-diagram-creator- GitHub stars
- 2.8k
- Token cost
- ~581 tokens
- SKILL.md length
- 200 words
- Files
- 1
- Skills in repo
- 3,342
- Repo updated
- First seen
- Licence
- MIT
At a glance
Create mermaid er diagram creator operations. An agent skill from jeremylongshore/tons-of-skills-marketplace.
- Works in 4 steps: Provides step-by-step guidance for… → Follows industry best practices and… → Generates production-ready code and… → …
- : mermaid er diagram creator
- SKILL.md covers Overview, When to Use, Instructions and Examples, plus 5 more sections
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Mermaid Er Diagram Creator is an agent skill from jeremylongshore/tons-of-skills-marketplace. Create mermaid er diagram creator operations. Auto-activating skill for Visual Content. Triggers on: mermaid er diagram creator, mermaid er diagram creator Part of the Visual Content skill category. Use when working with mermaid er diagram creator functionality. Trigger with phrases like "mermaid er diagram creator", "mermaid creator", "mermaid".
Its SKILL.md is about 580 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts. Compatibility notes: Designed for Claude Code
It sits in Development, covering Diagrams. It works with Mermaid. The repository describes itself as: Model-agnostic agent-skills platform with a harness-free canonical layer, verified adapters, and the ccpi package manager. Explore at tonsofskills.com. The licence is MIT.
When your agent uses it
- : mermaid er diagram creator
- Mermaid er diagram creator Part of the Visual Content skill category
- Working with mermaid er diagram creator functionality
- With phrases like mermaid er diagram creator
Example prompts
- “mermaid er diagram creator”
- “mermaid creator”
- “mermaid”
- “/mermaid-er-diagram-creator”
Requirements
- Compatibility (from SKILL.md): Designed for Claude Code
- Pre-approved tools (allowed-tools): Read, Write, Edit, Bash(cmd:*), Grep
Workflow steps
4 steps, taken from the first numbered list in SKILL.md.
- Provides step-by-step guidance for mermaid er diagram creator
- Follows industry best practices and patterns
- Generates production-ready code and configurations
- Validates outputs against common standards
What it can do on your machine
Read from SKILL.md and the folder at commit cfae287. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves these tools, so the agent can use them without asking each time:
ReadWriteEditBash(cmd:*)Grep
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.
Compatibility
Designed for Claude Code
From compatibility in the SKILL.md frontmatter.
Context cost
Mermaid Er Diagram Creator loads about 581 tokens when it runs. Until then it costs about 94 tokens; SKILL.md has 200 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 jeremylongshore/tons-of-skills-marketplace at commit cfae287, republished under its MIT licence (© jeremylongshore). 200 words, ~581 tokens.
Download SKILL.mdSave it as
.claude/skills/mermaid-er-diagram-creator/SKILL.md (or your agent's skills folder).- name
- mermaid-er-diagram-creator
- description
- Create mermaid er diagram creator operations. Auto-activating skill for Visual Content. Triggers on: mermaid er diagram creator, mermaid er diagram creator Part of the Visual Content skill category. Use when working with mermaid er diagram creator functionality. Trigger with phrases like "mermaid er diagram creator", "mermaid creator", "mermaid".
- allowed-tools
- Read, Write, Edit, Bash(cmd:*), Grep
- compatibility
- Designed for Claude Code
- version
- 1.0.0
- license
- MIT
- author
- Jeremy Longshore <jeremy@intentsolutions.io>
- tags
- design, content
Mermaid Er Diagram Creator
Overview
This skill provides automated assistance for mermaid er diagram creator tasks within the Visual Content domain.
When to Use
This skill activates automatically when you:
- Mention "mermaid er diagram creator" in your request
- Ask about mermaid er diagram creator patterns or best practices
- Need help with visual content skills covering diagrams, charts, presentations, and visual documentation tools.
Instructions
- Provides step-by-step guidance for mermaid er diagram creator
- Follows industry best practices and patterns
- Generates production-ready code and configurations
- Validates outputs against common standards
Examples
Example: Basic Usage Request: "Help me with mermaid er diagram creator" Result: Provides step-by-step guidance and generates appropriate configurations
Prerequisites
- Relevant development environment configured
- Access to necessary tools and services
- Basic understanding of visual content concepts
Output
- Generated configurations and code
- Best practice recommendations
- Validation results
Error Handling
| Error | Cause | Solution |
|---|---|---|
| Configuration invalid | Missing required fields | Check documentation for required parameters |
| Tool not found | Dependency not installed | Install required tools per prerequisites |
| Permission denied | Insufficient access | Verify credentials and permissions |
Resources
- Official documentation for related tools
- Best practices guides
- Community examples and tutorials
Related Skills
Part of the Visual Content skill category. Tags: diagrams, mermaid, charts, visualization, presentations
© jeremylongshore, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Files
Just SKILL.md in skills/18-visual-content/mermaid-er-diagram-creator of jeremylongshore/tons-of-skills-marketplace.
Open the folder on GitHubat commit cfae287
Compare with similar skills
Mermaid Er Diagram Creator 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 Er Diagram Creator this skilljeremylongshore/tons-of-skills-marketplace | 2.8k | — | ~581 | Automated safety check: Pass | MIT | |
| 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.
More from jeremylongshore/tons-of-skills-marketplace
All 3,342 skills in this repoPerforming Security Code Review
jeremylongshore/tons-of-skills-marketplace
Execute this skill enables AI assistant to conduct a security-focused code review using the security-agent plugin.
Adapting Transfer Learning Models
jeremylongshore/tons-of-skills-marketplace
Build this skill automates the adaptation of pre-trained machine learning models using transfer learning techniques.
Agent Context Loader
jeremylongshore/tons-of-skills-marketplace
Execute proactive auto-loading: automatically detects and loads agents.md files.
Aggregating Performance Metrics
jeremylongshore/tons-of-skills-marketplace
Aggregate and centralize performance metrics from applications, systems, databases, caches, and services.
Analyzing Capacity Planning
jeremylongshore/tons-of-skills-marketplace
Execute this skill enables AI assistant to analyze capacity requirements and plan for future growth.
Analyzing Database Indexes
jeremylongshore/tons-of-skills-marketplace
Process use when you need to work with database indexing. An agent skill from jeremylongshore/tons-of-skills-marketplace.
Related
Works with
Categories
Questions about Mermaid Er Diagram Creator
What does Mermaid Er Diagram Creator do?
Create mermaid er diagram creator operations. An agent skill from jeremylongshore/tons-of-skills-marketplace. Mermaid Er Diagram Creator is an agent skill from jeremylongshore/tons-of-skills-marketplace. Create mermaid er diagram creator operations.
When should I use Mermaid Er Diagram Creator?
Mermaid Er Diagram Creator fits situations like: : mermaid er diagram creator; mermaid er diagram creator Part of the Visual Content skill category; working with mermaid er diagram creator functionality; with phrases like mermaid er diagram creator.
How do I install Mermaid Er Diagram Creator in Claude Code?
Run `npx skills add jeremylongshore/tons-of-skills-marketplace --skill mermaid-er-diagram-creator -a claude-code`. Or copy the skill folder (skills/18-visual-content/mermaid-er-diagram-creator in jeremylongshore/tons-of-skills-marketplace) into .claude/skills/mermaid-er-diagram-creator in your project. Claude Code loads it when a task matches its description.
How do I install Mermaid Er Diagram Creator in Codex?
Run `npx skills add jeremylongshore/tons-of-skills-marketplace --skill mermaid-er-diagram-creator -a codex`. Or copy the skill folder (skills/18-visual-content/mermaid-er-diagram-creator in jeremylongshore/tons-of-skills-marketplace) into .agents/skills/mermaid-er-diagram-creator in your project. Codex loads it when a task matches its description.
Can I use Mermaid Er Diagram Creator 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 jeremylongshore/tons-of-skills-marketplace --skill mermaid-er-diagram-creator -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-er-diagram-creator, .gemini/skills/mermaid-er-diagram-creator, .github/skills/mermaid-er-diagram-creator and .opencode/skills/mermaid-er-diagram-creator in your project.
What does Mermaid Er Diagram Creator need to run?
SKILL.md names no scripts, command-line tools or credentials: Mermaid Er Diagram Creator is instructions for the agent only. Its frontmatter pre-approves these tools: Read, Write, Edit, Bash(cmd:*), Grep. Compatibility (from SKILL.md): Designed for Claude Code.
Does Mermaid Er Diagram Creator 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 Er Diagram Creator 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 Er Diagram Creator use?
Mermaid Er Diagram Creator is published under the MIT licence (declared in SKILL.md). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does Mermaid Er Diagram Creator use?
About 581 tokens (SKILL.md is roughly 2.3k 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 Er Diagram Creator?
Skills that share tags, products or a category with Mermaid Er Diagram Creator: 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 Er Diagram Creator?
jeremylongshore (a GitHub user) maintains it in jeremylongshore/tons-of-skills-marketplace, which has 2,827 GitHub stars. The repository holds 3,342 skills in this directory. The repository was last updated on October 10, 2026.
Source: jeremylongshore/tons-of-skills-marketplace on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.