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.
Convert existing docs diagram images to Mermaid, and author new Mermaid diagrams for Mastra docs.
Install Docs Diagrams
$ npx skills add mastra-ai/mastra --skill docs-diagrams -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install mastra-ai/mastra docs-diagrams --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/mastra-ai/mastra.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.claude/skills/docs-diagrams .claude/skills/docs-diagrams && 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 "docs-diagrams" agent skill from https://github.com/mastra-ai/mastra/tree/main/.claude/skills/docs-diagrams into .claude/skills/docs-diagrams/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "docs-diagrams", 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/mastra-ai/mastra/tree/main/.claude/skills/docs-diagramsType 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 mastra-ai/mastra --skill docs-diagrams -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install mastra-ai/mastra docs-diagrams --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/mastra-ai/mastra.git skills-src && mkdir -p .agents/skills && cp -r skills-src/.claude/skills/docs-diagrams .agents/skills/docs-diagrams && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "docs-diagrams" agent skill from https://github.com/mastra-ai/mastra/tree/main/.claude/skills/docs-diagrams into .agents/skills/docs-diagrams/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "docs-diagrams", 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 mastra-ai/mastra --skill docs-diagrams -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install mastra-ai/mastra docs-diagrams --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/mastra-ai/mastra.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/.claude/skills/docs-diagrams .cursor/skills/docs-diagrams && 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 "docs-diagrams" agent skill from https://github.com/mastra-ai/mastra/tree/main/.claude/skills/docs-diagrams into .cursor/skills/docs-diagrams/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "docs-diagrams", 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/mastra-ai/mastra.git --path .claude/skills/docs-diagrams--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 mastra-ai/mastra --skill docs-diagrams -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install mastra-ai/mastra docs-diagrams --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/mastra-ai/mastra.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/.claude/skills/docs-diagrams .gemini/skills/docs-diagrams && 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 "docs-diagrams" agent skill from https://github.com/mastra-ai/mastra/tree/main/.claude/skills/docs-diagrams into .gemini/skills/docs-diagrams/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "docs-diagrams", 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 mastra-ai/mastra docs-diagramsInstalls 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 mastra-ai/mastra --skill docs-diagrams -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/mastra-ai/mastra.git skills-src && mkdir -p .github/skills && cp -r skills-src/.claude/skills/docs-diagrams .github/skills/docs-diagrams && 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 "docs-diagrams" agent skill from https://github.com/mastra-ai/mastra/tree/main/.claude/skills/docs-diagrams into .github/skills/docs-diagrams/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "docs-diagrams", 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 mastra-ai/mastra --skill docs-diagrams -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install mastra-ai/mastra docs-diagrams --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/mastra-ai/mastra.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/.claude/skills/docs-diagrams .opencode/skills/docs-diagrams && 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 "docs-diagrams" agent skill from https://github.com/mastra-ai/mastra/tree/main/.claude/skills/docs-diagrams into .opencode/skills/docs-diagrams/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "docs-diagrams", 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
docs-diagrams- GitHub stars
- 29k
- Token cost
- ~998 tokens
- SKILL.md length
- 568 words
- Files
- 1
- Skills in repo
- 44
- Repo updated
- First seen
- Licence
- Custom licence
At a glance
Convert existing docs diagram images to Mermaid, and author new Mermaid diagrams for Mastra docs.
- Works in 5 steps: Find every reference before touching… → Read the image and name the nodes and… → Write the diagram → …
- Replacing an Excalidraw
- SKILL.md covers Decide whether to convert, Convert, Extend the color language and Check the work
- Calls pnpm
What it does
Docs Diagrams is an agent skill from mastra-ai/mastra. Convert existing docs diagram images to Mermaid, and author new Mermaid diagrams for Mastra docs. Use when replacing an Excalidraw or PNG/JPG/SVG diagram with Mermaid, when a docs page needs a new diagram, when a diagram renders wrong in light or dark mode, or when auditing which docs images should become Mermaid. Triggers on: convert diagram, Excalidraw, mermaid, flowchart, diagram image, diagram styling, diagram looks wrong.
Its SKILL.md is about 1000 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.
It sits in Development, covering Diagrams. It works with Mastra, Mermaid and Excalidraw. The repository describes itself as: Mastra is the modern TypeScript framework for AI-powered applications and agents.
When your agent uses it
- Replacing an Excalidraw
- PNG/JPG/SVG diagram with Mermaid
- A docs page needs a new diagram
- A diagram renders wrong in light
Example prompts
- “/docs-diagrams”
Workflow steps
5 steps, taken from the step headings in SKILL.md.
- Find every reference before touching anything
- Read the image and name the nodes and edges
- Write the diagram
- Verify in the browser, in both modes
- Delete the asset only when nothing references it
What it can do on your machine
Read from SKILL.md and the folder at commit b98829a. 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
Shell commands in SKILL.md call:
pnpm
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md. Its commands use pnpm, which can reach the network depending on how they are called.
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
Docs Diagrams loads about 998 tokens when it runs. Until then it costs about 111 tokens; SKILL.md has 568 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
Its licence (Custom licence) doesn't allow us to republish the file, so here is its outline and opening line. It has 568 words (~998 tokens).
“Read docs/styleguides/DIAGRAM.md first. It is the shape, color, and layout language. This skill is the process for applying it to an image that already exists.”
- name
- docs-diagrams
Files
Just SKILL.md in .claude/skills/docs-diagrams of mastra-ai/mastra.
Open the folder on GitHubat commit b98829a
Compare with similar skills
Docs Diagrams 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 |
|---|---|---|---|---|---|---|
| Docs Diagrams this skillmastra-ai/mastra | 29k | — | ~998 | Automated safety check: Pass | Custom licence | |
| Diagram Designcathrynlavery/diagram-design | 49k | 1 repos | ~7.6k | Automated safety check: Pass | MIT | |
| Excalidraw Skillyctimlin/mcp_excalidraw | 2.5k | — | ~4.6k | Automated safety check: Pass | MIT | |
| Sketch Labwebdevcody/sketchlab.app | 182 | — | ~1.4k | Automated safety check: Pass | None | |
| Diagram Makergarrytan/gstack | 136k | — | ~4.1k | Automated safety check: Notes | MIT | |
| Excalidraw Canvas Toolkitlingzhi227/agent-research-skills | 390 | — | ~3.8k | Automated safety check: Pass | None |
Similar skills
Excalidraw Skill
yctimlin/mcp_excalidraw
Excalidraw canvas toolkit for creating, editing, and refining diagrams on a live canvas.
Sketch Lab
webdevcody/sketchlab.app
Generate Sketch Lab architecture diagrams and open them via a share URL.
Diagram Maker
garrytan/gstack
Turns an English description or Mermaid source into a diagram set: the source, an editable .excalidraw file and rendered SVG and PNG images.
Excalidraw Canvas Toolkit
lingzhi227/agent-research-skills
Draws and refines Excalidraw diagrams on a live canvas through MCP tools or a REST API, with screenshots, file import and export, snapshots and Mermaid conversion.
Excalidraw Diagram Design
BV-Venky/excalidraw-architect-mcp
Guide for structuring graph input (nodes and edges) for the Excalidraw Architect MCP tool to produce clean, readable diagrams.
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Related
Works with
Categories
Questions about Docs Diagrams
What does Docs Diagrams do?
Convert existing docs diagram images to Mermaid, and author new Mermaid diagrams for Mastra docs. Docs Diagrams is an agent skill from mastra-ai/mastra. Convert existing docs diagram images to Mermaid, and author new Mermaid diagrams for Mastra docs.
When should I use Docs Diagrams?
Docs Diagrams fits situations like: replacing an Excalidraw; PNG/JPG/SVG diagram with Mermaid; A docs page needs a new diagram; A diagram renders wrong in light.
How do I install Docs Diagrams in Claude Code?
Run `npx skills add mastra-ai/mastra --skill docs-diagrams -a claude-code`. Or copy the skill folder (.claude/skills/docs-diagrams in mastra-ai/mastra) into .claude/skills/docs-diagrams in your project. Claude Code loads it when a task matches its description.
How do I install Docs Diagrams in Codex?
Run `npx skills add mastra-ai/mastra --skill docs-diagrams -a codex`. Or copy the skill folder (.claude/skills/docs-diagrams in mastra-ai/mastra) into .agents/skills/docs-diagrams in your project. Codex loads it when a task matches its description.
Can I use Docs Diagrams 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 mastra-ai/mastra --skill docs-diagrams -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/docs-diagrams, .gemini/skills/docs-diagrams, .github/skills/docs-diagrams and .opencode/skills/docs-diagrams in your project.
What does Docs Diagrams need to run?
Going by SKILL.md and its folder, Docs Diagrams needs the command-line tools its instructions call (pnpm).
Does Docs Diagrams 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 Docs Diagrams 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 Docs Diagrams use?
Docs Diagrams has a licence file (the repository's licence) that doesn't match a standard licence. Read it on GitHub before reusing the skill.
How many tokens does Docs Diagrams use?
About 998 tokens (SKILL.md is roughly 4k 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 Docs Diagrams?
Skills that share tags, products or a category with Docs Diagrams: Diagram Design (cathrynlavery/diagram-design, 49k stars), Excalidraw Skill (yctimlin/mcp_excalidraw, 2.5k stars), Sketch Lab (webdevcody/sketchlab.app, 182 stars) and Diagram Maker (garrytan/gstack, 136k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Docs Diagrams?
mastra-ai (a GitHub organization) maintains it in mastra-ai/mastra, which has 28,698 GitHub stars. The repository holds 44 skills in this directory. The repository was last updated on October 11, 2026.
Source: mastra-ai/mastra on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.