Playground Builder
Turn complex visual or structural choices into a live, self-contained HTML explorer.
The skill limits output to a self-contained HTML file, requires inline CSS/JS, and forbids external dependencies, reducing dependency and data-exposure risk. It nevertheless instructs the agent to run `open` and use clipboard copying without describing user confirmation, sensitive-data handling, data-flow disclosure, or rollback, so points are deducted.
A coherent state/updateAll pattern, defaults, presets, and live-update requirements make the main path understandable. However, there are no tests, input validation, missing-template handling, or diagnosable behavior when the browser command is unavailable; static review also prevents a higher score.
Trigger language, intended scenarios, and six template categories are reasonably clear, with guidance to adapt the closest template. Non-fit boundaries, semantic exclusions, Chinese-language support, and environment-specific behavior are under-specified. The core function does not depend on overseas services.
The skill has progressive guidance, categorized templates, code examples, common-mistake warnings, and basic dependency notes. Repository context supplies Apache-2.0 licensing and Anthropic provenance, but the skill does not state versions, changelog, maintenance ownership, or an update path, so points are deducted.
The intended result is a directly usable single-file interactive playground with live preview, natural-language prompt output, and copy functionality, so the core value is clear. No generated examples or execution evidence are supplied, so completeness and usability cannot be verified; the static ceiling applies.
The SKILL.md, templates, and repository workflow are auditable primary materials, and the implementation patterns are concrete. There are no tests or third-party execution results covering the skill's key paths, so evidence remains limited and the static ceiling applies.
- No tests or generated HTML examples are provided; inspect output manually before relying on it.
- Browser launching and clipboard operations lack confirmation, failure feedback, and privacy guidance.
- Versioning, changelog, maintenance ownership, and Chinese-language UI support are unspecified.
What does this skill do, and when should you use it?
This skill creates interactive HTML playgrounds, explorers, and visual tools. The generated artifact typically combines controls, a live preview, and prompt output in one HTML file. Users adjust settings, see the preview update, and copy a natural-language prompt for use in Claude. The skill requires inline CSS and JavaScript, immediate updates, presets, sensible defaults, and a dark theme.
Identifies the playground type requested by the user; selects a matching template from templates/ for design, data exploration, concept mapping, document critique, diff review, or code mapping; produces a single HTML file with inline CSS and JavaScript; keeps one state object and re-renders the preview and prompt whenever controls change; describes only non-default choices in natural language; adds a copy button, 3–5 named presets, and a dark interface; then runs open <filename>.html to launch the file in a browser.
- A designer comparing component, layout, spacing, color, or typography decisions can use a visual design playground to explore alternatives.
- A data or engineering user building SQL, API, pipeline, or regex queries can use a data explorer to combine parameters interactively.
- A teacher, researcher, or product practitioner mapping concepts, knowledge gaps, or scope can use a concept-map playground.
- A developer reviewing diffs, commits, or pull requests can use a diff-review playground with line-by-line commenting.
- A maintainer examining component relationships, data flow, or layers can use a code-map playground for codebase architecture exploration.
What are this skill's strengths and limitations?
- Well suited to large, visual, or structural input spaces that are difficult to express as plain text.
- Produces a single file with inline CSS and JavaScript rather than relying on external CDNs.
- Updates the preview and prompt immediately and provides clipboard feedback.
- Includes sensible defaults and 3–5 named presets for a usable initial state.
- It depends on matching files in templates/, whose contents and distribution details are not included in the supplied material.
- Only six template categories are specified; other topics require adapting the closest template.
- The source provides no test suite, browser compatibility matrix, or evidence of generated-output validation.
- The workflow requires creating and opening an HTML file, so the client needs filesystem and shell access.
How do you install this skill?
The skill is located at plugins/playground/skills/playground/SKILL.md in the repository. The README says plugins can be installed through Claude Code's plugin system; the corresponding plugin directory is playground, so the supported command is: /plugin install playground@claude-plugins-official. Repository: https://github.com/anthropics/claude-plugins-official.
How do you use this skill?
Give a supported client a concrete request such as: “Create an interactive design playground for choosing colors and spacing.” The skill identifies the type, loads the closest template, and builds a single HTML file. The supplied source does not document template deployment details, complete CLI arguments, or installation commands for other clients.