UI Mockup

What it does

When your agent uses it

• User mentions UI design
• WebView interface
• Requests design UI for [plugin]

Example prompts

• “design UI for [plugin]”
• “/ui-mockup”

Requirements

• Node.js
• Pre-approved tools (allowed-tools): Read, Task, AskUserQuestion

Workflow steps

5 steps, taken from the first numbered list in SKILL.md.

1. 1Check for aesthetic library (Phase 0)
2. 2Gather requirements through tiered questions (Phases 1-3)
3. 3Dispatch ui-design-agent for mockup generation
4. 4Iterate until user approves
5. 5Generate implementation files

What it can do on your machine

Read from SKILL.md and the folder at commit e965cdd. 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:

  • Read
  • Task
  • AskUserQuestion

  From allowed-tools in the SKILL.md frontmatter.

• Runs code

  Ships script files (JavaScript, from the files we listed), which the agent can run.

  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

UI Mockup loads about 3.3k tokens when it runs, and up to ~36k if it reads all its reference files. Until then it costs about 64 tokens; SKILL.md has 1,371 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it

~64

When it runs · the whole SKILL.md, loaded when a task matches

~3.3k

With references · SKILL.md plus every file in references/, read only if the agent opens them

~36k

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

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 1,371 words (~3,324 tokens).

name

ui-mockup

allowed-tools

Read, Task, AskUserQuestion

preconditions

None (can work standalone or with creative brief)

Read the full SKILL.md on GitHub

Files

SKILL.md and 24 other files (references, assets) in .claude/skills/ui-mockup of glittercowboy/plugin-freedom-system.

• SKILL.md
• assets/integration-checklist-template.md
• assets/parameter-binding-example.js
• assets/parameter-spec-template.md
• assets/ui-yaml-template.yaml
• assets/webview-templates/CMakeLists-webview-snippet.cmake
• assets/webview-templates/PluginEditor-webview.cpp
• assets/webview-templates/PluginEditor-webview.h
• assets/webview-templates/index-template.html
• references/aesthetic-integration.md
• references/browser-testing.md
• references/cmake-configuration.md
• references/cmake-generation.md
• references/common-pitfalls.md
• references/context-extraction.md
• references/cpp-boilerplate-generation.md
• references/decision-menus.md
• references/delegation-protocols.md
• … and 7 more

Open the folder on GitHubat commit e965cdd