UI Styling
Ohh-889/skyroc
Create beautiful, accessible user interfaces with shadcn/ui components (built on Radix UI + Tailwind), Tailwind CSS utility-first styling, and canvas-based visual designs.
How to build Mastra frontend interfaces with the @mastra/playground-ui design system.
Install Mastra Frontend
$ npx skills add mastra-ai/mastra --skill mastra-frontend -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install mastra-ai/mastra mastra-frontend --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/mastra-frontend .claude/skills/mastra-frontend && 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 "mastra-frontend" agent skill from https://github.com/mastra-ai/mastra/tree/main/.claude/skills/mastra-frontend into .claude/skills/mastra-frontend/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "mastra-frontend", 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/mastra-frontendType 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 mastra-frontend -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install mastra-ai/mastra mastra-frontend --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/mastra-frontend .agents/skills/mastra-frontend && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "mastra-frontend" agent skill from https://github.com/mastra-ai/mastra/tree/main/.claude/skills/mastra-frontend into .agents/skills/mastra-frontend/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "mastra-frontend", 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 mastra-frontend -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install mastra-ai/mastra mastra-frontend --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/mastra-frontend .cursor/skills/mastra-frontend && 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 "mastra-frontend" agent skill from https://github.com/mastra-ai/mastra/tree/main/.claude/skills/mastra-frontend into .cursor/skills/mastra-frontend/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "mastra-frontend", 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/mastra-frontend--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 mastra-frontend -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install mastra-ai/mastra mastra-frontend --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/mastra-frontend .gemini/skills/mastra-frontend && 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 "mastra-frontend" agent skill from https://github.com/mastra-ai/mastra/tree/main/.claude/skills/mastra-frontend into .gemini/skills/mastra-frontend/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "mastra-frontend", 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 mastra-frontendInstalls 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 mastra-frontend -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/mastra-frontend .github/skills/mastra-frontend && 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 "mastra-frontend" agent skill from https://github.com/mastra-ai/mastra/tree/main/.claude/skills/mastra-frontend into .github/skills/mastra-frontend/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "mastra-frontend", 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 mastra-frontend -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 mastra-frontend --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/mastra-frontend .opencode/skills/mastra-frontend && 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 "mastra-frontend" agent skill from https://github.com/mastra-ai/mastra/tree/main/.claude/skills/mastra-frontend into .opencode/skills/mastra-frontend/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "mastra-frontend", 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
mastra-frontend- GitHub stars
- 29k
- Token cost
- ~1.6k tokens
- SKILL.md length
- 777 words
- Files
- 1
- Skills in repo
- 44
- Repo updated
- First seen
- Licence
- Custom licence
At a glance
How to build Mastra frontend interfaces with the @mastra/playground-ui design system.
- Works in 5 steps: DS component or variant — the look you… → Generated theme utility from theme.css. → Dynamic v4 utility when the value maps… → …
- Tasks that involve UI design
- SKILL.md covers The boundary: look vs layout, Find what exists — never…, Choosing a class value and Theme contract, plus 2 more sections
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Mastra Frontend is an agent skill from mastra-ai/mastra. How to build Mastra frontend interfaces with the @mastra/playground-ui design system. This skill should be used when creating or modifying any application UI — pages, components, styling, or tokens — in this repo or in an external consumer of the design system. The docs site has its own styling and is out of scope.
Its SKILL.md is about 1.6k 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 Frontend & Design, covering UI design, Design systems and Static sites and blogs. It works with Mastra and Tailwind CSS. The repository describes itself as: Mastra is the modern TypeScript framework for AI-powered applications and agents.
When your agent uses it
- Tasks that involve UI design
- Tasks that involve Design systems
- Tasks that involve Static sites and blogs
Example prompts
- “/mastra-frontend”
Workflow steps
5 steps, taken from the first numbered list in SKILL.md.
- DS component or variant — the look you need probably already exists.
- Generated theme utility from theme.css.
- Dynamic v4 utility when the value maps to the spacing scale (min-w-100, size-6, grid-cols-15).
- Local CSS custom property consumed via shorthand, for runtime values scoped to one component (bg-(--row-bg), text-(color:--agent-color-fg)).
- Square-bracket arbitrary value only for a justified one-off (max-h-[calc(100dvh-3rem)]).
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
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
Mastra Frontend loads about 1.6k tokens when it runs. Until then it costs about 83 tokens; SKILL.md has 777 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 777 words (~1,611 tokens).
“Every Mastra application UI is assembled from the @mastra/playground-ui design system. Building a screen is composition work: pick existing components, arrange them with layout utilities, and let the design system provide the look. Writing colors, font sizes, shadows, or radii…”
- name
- mastra-frontend
Files
Just SKILL.md in .claude/skills/mastra-frontend of mastra-ai/mastra.
Open the folder on GitHubat commit b98829a
Compare with similar skills
Mastra Frontend 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 |
|---|---|---|---|---|---|---|
| Mastra Frontend this skillmastra-ai/mastra | 29k | — | ~1.6k | Automated safety check: Pass | Custom licence | |
| UI StylingOhh-889/skyroc | 795 | 13 repos | ~2.5k | Automated safety check: Pass | MIT | |
| Creative Tim UI Blockscreativetimofficial/ui | 12k | — | ~2.1k | Automated safety check: Notes | MIT | |
| DaisyUI Component Librarysaadeghi/daisyui | 43k | — | ~1.3k | Automated safety check: Pass | MIT | |
| Ss Learnbitjaru/styleseed | 973 | — | ~1.3k | Automated safety check: Pass | MIT | |
| UI/UX Design System AdvisorGalaxy-Dawn/claude-scholar | 5.7k | 1 repos | ~1.1k | Automated safety check: Pass | MIT |
Similar skills
Creative Tim UI Blocks
creativetimofficial/ui
Helps install, generate and review Creative Tim UI blocks: shadcn/ui-based React and Tailwind sections that follow a restrained, production-minded design philosophy.
DaisyUI Component Library
saadeghi/daisyui
Official daisyUI skill for Tailwind CSS projects, routing to install, usage, configuration, color and per-component guides before writing any HTML or JSX with its classes.
Ss Learn
bitjaru/styleseed
Capture a human-approved UI design lesson as a privacy-minimized local StyleSeed candidate, review it, and prepare an opt-in share package without transmitting project code, prompts, screenshots, or…
UI/UX Design System Advisor
Galaxy-Dawn/claude-scholar
Turns a vague UI request into a concrete design system with style, palette, typography and layout guidance from a search script, plus stack-specific implementation advice.
UI Upstream Sync
fulldotdev/ui
Audit and update the existing Fulldev Astro UI registry against current data-slot and shadcn/ui Base UI Vega.
More from mastra-ai/mastra
All 44 skills in this repoDocs Audit
mastra-ai/mastra
Autonomous, report-only documentation review for Mastra docs.
Builder Smoke Test
mastra-ai/mastra
Smoke test the Agent Builder feature branch end-to-end against a hermetic project scaffolded by the skill (linked to the current worktree).
Mastra Smoke Test
mastra-ai/mastra
Smoke test Mastra projects locally or deploy to staging/production.
React Best Practices
mastra-ai/mastra
React performance optimization guidelines from Mastra Engineering.
Agent Prompt Quality Bar
mastra-ai/mastra
Universal quality bar and final audit rubric for any agent system prompt.
Coding Agent
mastra-ai/mastra
Authoring playbook for building agents that write, edit, review, or refactor code.
Related
Works with
Categories
Questions about Mastra Frontend
What does Mastra Frontend do?
How to build Mastra frontend interfaces with the @mastra/playground-ui design system. Mastra Frontend is an agent skill from mastra-ai/mastra. How to build Mastra frontend interfaces with the @mastra/playground-ui design system.
When should I use Mastra Frontend?
Mastra Frontend fits situations like: tasks that involve UI design; tasks that involve Design systems; tasks that involve Static sites and blogs.
How do I install Mastra Frontend in Claude Code?
Run `npx skills add mastra-ai/mastra --skill mastra-frontend -a claude-code`. Or copy the skill folder (.claude/skills/mastra-frontend in mastra-ai/mastra) into .claude/skills/mastra-frontend in your project. Claude Code loads it when a task matches its description.
How do I install Mastra Frontend in Codex?
Run `npx skills add mastra-ai/mastra --skill mastra-frontend -a codex`. Or copy the skill folder (.claude/skills/mastra-frontend in mastra-ai/mastra) into .agents/skills/mastra-frontend in your project. Codex loads it when a task matches its description.
Can I use Mastra Frontend 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 mastra-frontend -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/mastra-frontend, .gemini/skills/mastra-frontend, .github/skills/mastra-frontend and .opencode/skills/mastra-frontend in your project.
What does Mastra Frontend need to run?
SKILL.md names no scripts, command-line tools or credentials: Mastra Frontend is instructions for the agent only.
Does Mastra Frontend 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 Mastra Frontend 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 Mastra Frontend use?
Mastra Frontend 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 Mastra Frontend use?
About 1.6k tokens (SKILL.md is roughly 6.4k 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 Mastra Frontend?
Skills that share tags, products or a category with Mastra Frontend: UI Styling (Ohh-889/skyroc, 795 stars), Creative Tim UI Blocks (creativetimofficial/ui, 12k stars), DaisyUI Component Library (saadeghi/daisyui, 43k stars) and Ss Learn (bitjaru/styleseed, 973 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Mastra Frontend?
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.