ui-mockup

<objective> Creates WebView UI mockups for audio plugins through iterative design and implementation scaffolding. </objective>

<quick_start>

Check for aesthetic library (Phase 0)
Gather requirements through tiered questions (Phases 1-3)
Dispatch ui-design-agent for mockup generation
Iterate until user approves
Generate implementation files </quick_start>

<workflow> <phase name="A-design-iteration"> <purpose>Generate 2 design files for rapid iteration</purpose> <outputs> - `v[N]-ui.yaml` - Machine-readable design specification - `v[N]-ui-test.html` - Browser-testable mockup </outputs> <gate>Do NOT proceed to Phase B until user approves design via Phase 5.5 decision menu</gate> </phase> <phase name="B-implementation-scaffolding"> <purpose>Generate 5 implementation files ONLY after Phase A approval</purpose> <outputs> - `v[N]-ui.html` - Production HTML - `v[N]-PluginEditor.h` - C++ header boilerplate - `v[N]-PluginEditor.cpp` - C++ implementation boilerplate - `v[N]-CMakeLists.txt` - WebView build configuration - `v[N]-integration-checklist.md` - Implementation steps </outputs> <location>plugins/[PluginName]/.ideas/mockups/</location> </phase> </workflow>

<context_detection> <standalone_mode>

No
```
.continue-here.md
```
file present
Generates mockups independently
Skips state updates </standalone_mode>

<workflow_mode>

File

plugins/[PluginName]/.continue-here.md

exists with

current_stage

field

Updates workflow state after each phase </workflow_mode>

Check for

.continue-here.md

existence to determine mode. If present, update state files. If absent, skip state updates. </context_detection>

<phase name="0-aesthetic-check"> Check if `.claude/aesthetics/manifest.json` exists. If found, count aesthetics using jq. <menu> Found {N} saved aesthetics in library.

How would you like to start the UI design?

Start from aesthetic template - Apply saved visual system
Start from scratch - Create custom design
List all aesthetics - Browse library before deciding

Choose (1-3): _

</menu> <routing> - Option 1: Display aesthetics from manifest with metadata (name, vibe, colors, source). Invoke ui-template-library skill with "apply" operation. Skip to Phase 4 with generated mockup. - Option 2: Continue to Phase 1 (load context). - Option 3: Invoke ui-template-library skill with "list" operation, show previews, return to menu. - No aesthetics: Skip directly to Phase 1. </routing>

See

references/aesthetic-integration.md

for complete integration details. </phase>

<phase name="1-load-context"> Load context from creative brief and extract requirements. See `references/phase-details.md` for extraction protocol. See `references/context-extraction.md#example-extracting-from-creative-brief` for examples. </phase> <phase name="1.5-context-aware-prompt"> Adapt initial prompt based on creative brief contents (rich/minimal/zero UI details). See `references/phase-details.md` for prompt templates. </phase> <phase name="2-gap-analysis"> Analyze gaps in Tier 1 (Critical), Tier 2 (Visual), Tier 3 (Polish) requirements. See `references/phase-details.md` for tier definitions. See `references/design-questions.md` for question templates. </phase> <phase name="2.5-calculate-dimensions"> Calculate recommended window size before asking user. See `references/phase-details.md` for calculation steps. See `references/layout-validation.md` Section 2 for formulas. </phase> <phase name="3-question-batch"> Generate exactly 4 questions using AskUserQuestion based on identified gaps. See `references/phase-details.md` for rules and question format. See `references/design-questions.md#example-question-batches` for templates. </phase> <phase name="3.5-decision-gate"> Present decision gate with AskUserQuestion: finalize, ask more questions, or add context. Route to Phase 4, back to Phase 2, or collect free-form text. See `references/phase-details.md` for menu format and routing. </phase> <phase name="4-5.45-design-agent"> Invoke ui-design-agent via Task tool to generate YAML + test HTML.

Include in invocation prompt:

All gathered requirements (layout, controls, colors, etc.)
Quality expectation: "Design must look like commercial $50-200 audio plugin - intentional decisions, not defaults"

See

references/phase-details.md

for invocation summary. See

references/delegation-protocols.md

for complete protocol. </phase>

<phase name="5.5-design-decision-menu"> <gate>CRITICAL: Phases 6-10 ONLY execute if user chooses option 2 (Finalize)</gate> <menu> Mockup v[N] design created (2 files)

Files generated:

v[N]-ui.yaml (design specification)
v[N]-ui-test.html (browser-testable mockup)

What would you like to do?

Iterate - Refine design, adjust layout
Finalize - Validate alignment and complete mockup
Save as template - Add to aesthetic library for reuse
Other

Choose (1-4): _

</menu> <routing> - Option 1 (Iterate): Collect refinement feedback, return to Phase 2 with new version (v2, v3, etc.), invoke NEW ui-design-agent instance (fresh context). - Option 2 (Finalize): Proceed to Phase 5.6 (automatic brief update), mockup is source of truth for UI sections, no user interaction needed, continue to Phase 6-10 after brief sync. - Option 3 (Save as template): Invoke ui-template-library skill with "save" operation, after saving return to Phase 5.5 menu. - Option 4 (Other): Handle custom request (test in browser, validate constraints, etc.). </routing>

<iteration_guidance> When collecting feedback for Option 1 (Iterate):

If user provides specific changes ("make it vertical", "add a meter", "change colors to blue"):

Pass these as explicit requirements to new ui-design-agent instance

If user provides vague improvement requests ("make it better", "improve it", "polish it"):

Prompt for specifics: "What aspect should I focus on? (layout, colors, spacing, controls)"
If user says "everything" or "overall quality": Pass instruction to refine existing elements (spacing, color harmony, control styling) rather than add new elements </iteration_guidance>

See

references/decision-menus.md#phase-5-5-design-decision-menu

for detailed routing. </phase>

<phase name="5.6-update-brief"> Automatic update of creative brief from finalized mockup. Triggered by "Finalize" selection in Phase 5.5. No user interaction required. See `references/phase-details.md` for protocol. </phase> <phase name="6-10-implementation"> <prerequisites> - User confirmed design in Phase 5.5 (selected option 2: Finalize) - Phase A files exist (`v[N]-ui.yaml`, `v[N]-ui-test.html`) - Finalization marker present in YAML </prerequisites>

See

references/phase-b-enforcement.md

for guard implementation. </phase>

<phase name="6-10.5-finalization-agent"> Invoke ui-finalization-agent via Task tool to generate 5 implementation files. See `references/phase-details.md` for invocation summary. See `references/delegation-protocols.md` for complete protocol. </phase> <phase name="10.7-completion-menu"> Present completion menu after ui-finalization-agent returns successfully. See `references/decision-menus.md#completion-menu` for format and routing. </phase>

<orchestration_protocol> <delegation_rules> This skill NEVER generates mockup files directly. ALL file generation delegated to subagents.

<sequence> 1. Orchestrator: Gather requirements (Phases 0-3.5) 2. Orchestrator: Invoke ui-design-agent via Task tool 3. ui-design-agent: Generate YAML + test HTML, commit, return JSON 4. Orchestrator: Parse JSON, present Phase 5.5 menu 5. If iterate: Orchestrator invokes NEW ui-design-agent 6. If finalize: Orchestrator updates brief (Phase 5.6) 7. Orchestrator: Invoke ui-finalization-agent via Task tool 8. ui-finalization-agent: Generate 5 files, commit, return JSON 9. Orchestrator: Parse JSON, present completion menu </sequence>

See

references/delegation-protocols.md

for enforcement details. </delegation_rules>

<state_management> Subagents update

.continue-here.md

with their phase results. Orchestrator verifies

stateUpdated

flag in JSON report.

After subagent returns

stateUpdated: true

, verify actual state contents match expected values (not just boolean flag).

Read

.continue-here.md

, parse YAML, check specific fields match JSON report values. If mismatch, present state recovery menu.

See

references/state-tracking.md

for complete state schema and verification protocol. </state_management>

<iteration_protocol> Each iteration runs in fresh agent context. User chooses "Iterate" then orchestrator collects feedback and invokes NEW ui-design-agent with incremented version. Fresh context prevents context window bloat during iterative design. </iteration_protocol>

<error_handling>

Agent failures: Present error menu (retry/manual fix/debug/cancel).
Validation failures: Agent returns
```
validationPassed: false
```
- present error menu.
State update failures: Agent returns
```
stateUpdated: false
```
- present state recovery menu (verify/manual update/continue anyway). </error_handling> </orchestration_protocol>

<versioning_strategy> Pattern: v1, v2, v3... Each version saved separately.

Purpose: Explore layouts without losing work, A/B test designs, keep history for rollback.

File naming: All 7 files prefixed with version (e.g.,

v2-ui.html

v2-PluginEditor.h

Implementation: Latest version used for Stage 3 (GUI) unless user specifies different version.

See

references/versioning.md

for file management details. </versioning_strategy>

<success_criteria> <design_phase>

YAML spec generated matching user requirements
Browser test HTML works (interactive controls, parameter messages)
Visual quality meets commercial standard (intentional design, not defaults)
Design files committed to git
```
.continue-here.md
```
updated with version (if workflow mode)
User presented with Phase 5.5 decision menu
Design approved OR user iterates with refinements </design_phase>

<implementation_phase>

All 7 files generated and saved to
```
.ideas/mockups/
```
Production HTML complete (no placeholders)
C++ boilerplate matches YAML structure (correct parameter bindings)
parameter-spec.md generated and locked (v1 only)
Implementation files committed to git
```
.continue-here.md
```
updated with finalization status (if workflow mode) </implementation_phase> </success_criteria>

<integration_points> <invoked_by>

```
/dream
```
command - After creative brief, before implementation
```
plugin-workflow
```
skill - During Stage 0 (UI design phase)
```
plugin-improve
```
skill - When redesigning existing plugin UI
Natural language: "Design UI for [PluginName]", "Create mockup for compressor" </invoked_by>

<always_invokes>

```
ui-design-agent
```
subagent (Phase 4-5.45) - REQUIRED for design iteration
```
ui-finalization-agent
```
subagent (Phase 6-10.5) - REQUIRED for implementation files </always_invokes>

<also_invokes>

```
ui-template-library
```
skill (if user saves aesthetic) </also_invokes>

<creates> - `plugins/[Name]/.ideas/mockups/v[N]-*.{yaml,html,h,cpp,txt,md}` (7 files) - `plugins/[Name]/.ideas/parameter-spec.md` (if v1 and doesn't exist) </creates> <updates> - `PLUGINS.md` - Mark UI designed (if workflow) - `.continue-here.md` - Update workflow state (if workflow) </updates> <blocks> - Stage 1 (Foundation) - Cannot proceed without parameter-spec.md - Stage 3 (GUI) - Cannot implement without approved UI mockup </blocks> </integration_points>

<reference_documentation> Progressive disclosure - load references when reaching specific phases:

Phase 0:
```
references/aesthetic-integration.md
```
- Aesthetic library integration
Phase 1:
```
references/context-extraction.md
```
- Creative brief extraction
Phase 2-3:
```
references/design-questions.md
```
- Question templates and tiering
Phase 2.5:
```
references/layout-validation.md
```
- Dimension calculation formulas
Phase 4-5.45:
```
references/delegation-protocols.md
```
- Subagent invocation
Phase 5.5:
```
references/decision-menus.md
```
- Menu format and routing
Phase 5.6:
```
references/state-tracking.md
```
- Brief sync protocol
Phase 6-10:
```
references/phase-b-enforcement.md
```
- Phase B guard
Anti-patterns:
```
references/common-pitfalls.md
```
- What to avoid

Technical details:

```
references/html-generation.md
```
- Production HTML rules
```
references/browser-testing.md
```
- Browser test workflow
```
references/cmake-configuration.md
```
- WebView build settings

references/cpp-boilerplate-generation.md

- C++ template generation

```
references/ui-design-rules.md
```
- Design constraints and patterns
```
references/versioning.md
```
- File management </reference_documentation>

<template_assets>

```
assets/ui-yaml-template.yaml
```
- YAML structure
```
assets/webview-boilerplate.md
```
- C++ integration templates

assets/integration-checklist-template.md

- Integration guide

```
assets/parameter-spec-template.md
```
- Parameter specification format </template_assets>

ui-mockup

NPX Install

Tags

SKILL.md Content