Pencil Pro

Primary Resolution Rule

This skill must be configured before first use.

If the user says "run the PencilPlaybook setup wizard" or asks to set up or configure PencilPlaybook: → Read .claude/skills/pencilplaybook/setup.md and follow the instructions there exactly.

If the user says "build my first screen with PencilPlaybook" or asks to start designing: → Read .claude/skills/pencilplaybook/onboarding.md and follow the instructions there exactly.

Configured resolution: (run setup to set this)

If a screen root in an existing .pen file doesn't match your configured resolution, note it before editing. Do not build on top of a wrongly-sized canvas without flagging the deviation.

Common exception — marketing pages: Design at 1440px regardless of your app resolution. Marketing pages are consumed at variable browser widths — design at 1440px, verify at 390px.

Session Startup (Every Pencil Session)

1. get_editor_state()                           — check active document and selection
2. open_document("path/to/your-file.pen")       — open target file
3. get_guidelines(topic="web-app")              — load design guidelines
4. set_variables(<token map below>)             — inject brand tokens
5. get_variables()                              — confirm tokens stored
6. snapshot_layout()                            — verify canvas dimensions

Your token map — run set_variables with this object at the start of every session. Variables may not persist between Claude Code sessions.

{
  "color-primary":        "YOUR_HEX",
  "color-primary-dark":   "YOUR_HEX",
  "color-accent":         "YOUR_HEX",
  "color-background":     "YOUR_HEX",
  "color-surface":        "YOUR_HEX",
  "color-border":         "YOUR_HEX",
  "color-text":           "YOUR_HEX",
  "color-text-muted":     "YOUR_HEX",
  "color-success":        "YOUR_HEX",
  "color-warning":        "YOUR_HEX",
  "color-error":          "YOUR_HEX",
  "font-sans":            "YOUR_FONT",
  "font-mono":            "YOUR_FONT",
  "font-serif":           "YOUR_FONT",
  "spacing-card":         "24",
  "spacing-gap-sm":       "8",
  "spacing-gap-md":       "16",
  "spacing-gap-lg":       "24",
  "spacing-gap-xl":       "32",
  "content-max-width":    "YOUR_VALUE",
  "sidebar-width":        "YOUR_VALUE"
}

After set_variables, call get_variables() to confirm all tokens are stored.

Scaffold Scripts

Nine scaffold scripts covering the most common layout archetypes. Run the setup wizard to fill in the dimension and color values below before using.

Scaffold A — App Dashboard

Metrics, KPIs, activity feed, monitoring

sidebar=I("root", {name:"Sidebar", width:SCAFFOLD_SIDEBAR_WIDTH, height:SCAFFOLD_CANVAS_HEIGHT, bg:"SIDEBAR_BG", display:"flex", flexDirection:"column"})
pageArea=I("root", {name:"PageArea", width:SCAFFOLD_PAGE_AREA_WIDTH, height:SCAFFOLD_CANVAS_HEIGHT, x:SCAFFOLD_SIDEBAR_WIDTH, bg:"PAGE_BG"})
pageHeader=I("pageArea", {name:"PageHeader", width:SCAFFOLD_PAGE_AREA_WIDTH, height:64, bg:"SURFACE_COLOR", borderBottom:"1px solid BORDER_COLOR", display:"flex", alignItems:"center", px:32})
statsBar=I("pageArea", {name:"StatsBar", y:64, width:SCAFFOLD_PAGE_AREA_WIDTH, height:80, bg:"STATS_BG", display:"flex", alignItems:"center", gap:24, px:32})
contentWrap=I("pageArea", {name:"ContentWrap", y:144, width:SCAFFOLD_PAGE_AREA_WIDTH, height:SCAFFOLD_CONTENT_HEIGHT_A, display:"flex", justifyContent:"center", p:32})
contentInner=I("contentWrap", {name:"ContentInner", width:SCAFFOLD_CONTENT_MAX, display:"flex", flexDirection:"column", gap:24})

After scaffold: snapshot_layout() — verify pageArea.width and contentInner.width are correct.

Scaffold B — App List / Queue

Tables, asset libraries, queues, user management

sidebar=I("root", {name:"Sidebar", width:SCAFFOLD_SIDEBAR_WIDTH, height:SCAFFOLD_CANVAS_HEIGHT, bg:"SIDEBAR_BG"})
pageArea=I("root", {name:"PageArea", width:SCAFFOLD_PAGE_AREA_WIDTH, height:SCAFFOLD_CANVAS_HEIGHT, x:SCAFFOLD_SIDEBAR_WIDTH, bg:"PAGE_BG"})
pageHeader=I("pageArea", {name:"PageHeader", width:SCAFFOLD_PAGE_AREA_WIDTH, height:64, bg:"SURFACE_COLOR", borderBottom:"1px solid BORDER_COLOR", display:"flex", alignItems:"center", px:32})
commandStrip=I("pageArea", {name:"CommandStrip", y:64, width:SCAFFOLD_PAGE_AREA_WIDTH, height:52, bg:"SURFACE_COLOR", borderBottom:"1px solid BORDER_COLOR", display:"flex", alignItems:"center", gap:16, px:32})
tableWrap=I("pageArea", {name:"TableWrap", y:116, width:SCAFFOLD_PAGE_AREA_WIDTH, height:SCAFFOLD_CONTENT_HEIGHT_B, display:"flex", justifyContent:"center", px:32, pt:24})
tableInner=I("tableWrap", {name:"TableInner", width:SCAFFOLD_CONTENT_MAX, display:"flex", flexDirection:"column", gap:0})
tableHeader=I("tableInner", {name:"TableHeader", width:SCAFFOLD_CONTENT_MAX, height:40, bg:"TABLE_HEADER_BG", borderBottom:"1px solid BORDER_COLOR", display:"flex", alignItems:"center"})

Scaffold C — App Detail / Review

Two-panel detail views, review flows, side-by-side layouts

sidebar=I("root", {name:"Sidebar", width:SCAFFOLD_SIDEBAR_WIDTH, height:SCAFFOLD_CANVAS_HEIGHT, bg:"SIDEBAR_BG"})
pageArea=I("root", {name:"PageArea", width:SCAFFOLD_PAGE_AREA_WIDTH, height:SCAFFOLD_CANVAS_HEIGHT, x:SCAFFOLD_SIDEBAR_WIDTH, bg:"PAGE_BG"})
pageHeader=I("pageArea", {name:"PageHeader", width:SCAFFOLD_PAGE_AREA_WIDTH, height:64, bg:"SURFACE_COLOR", borderBottom:"1px solid BORDER_COLOR"})
actionBar=I("pageArea", {name:"ActionBar", y:64, width:SCAFFOLD_PAGE_AREA_WIDTH, height:56, bg:"SURFACE_COLOR", borderBottom:"1px solid BORDER_COLOR"})
contentWrap=I("pageArea", {name:"ContentWrap", y:120, width:SCAFFOLD_PAGE_AREA_WIDTH, height:SCAFFOLD_CONTENT_HEIGHT_C, display:"flex", justifyContent:"center"})
contentInner=I("contentWrap", {name:"ContentInner", width:SCAFFOLD_CONTENT_MAX, height:SCAFFOLD_CONTENT_HEIGHT_C, display:"flex", gap:0})
leftPanel=I("contentInner", {name:"LeftPanel", width:SCAFFOLD_LEFT_PANEL, height:SCAFFOLD_CONTENT_HEIGHT_C, bg:"SURFACE_COLOR", borderRight:"1px solid BORDER_COLOR"})
rightPanel=I("contentInner", {name:"RightPanel", width:SCAFFOLD_RIGHT_PANEL, height:SCAFFOLD_CONTENT_HEIGHT_C, bg:"PAGE_BG", p:24, display:"flex", flexDirection:"column", gap:20})

Note: left/right split defaults to ~40/60. Adjust per feature — common splits: 40/60, 38/62, 50/50.

Scaffold D — Marketing Page

Landing pages, product pages — always 1440px wide regardless of app canvas

navbar=I("root", {name:"Navbar", width:1440, height:72, bg:"SURFACE_COLOR", borderBottom:"1px solid BORDER_COLOR", display:"flex", alignItems:"center", px:80})
heroSection=I("root", {name:"HeroSection", y:72, width:1440, height:600, bg:"HERO_BG", display:"flex", flexDirection:"column", alignItems:"center", justifyContent:"center"})
heroContent=I("heroSection", {name:"HeroContent", width:SCAFFOLD_MARKETING_CONTENT_MAX, display:"flex", flexDirection:"column", alignItems:"center", gap:24})
section1=I("root", {name:"Section1", y:672, width:1440, height:480, bg:"SURFACE_COLOR", display:"flex", flexDirection:"column", alignItems:"center", py:80})
section1Content=I("section1", {name:"Section1Content", width:SCAFFOLD_MARKETING_CONTENT_MAX})

Marketing pages are mobile-first. Design at 1440px and verify the layout at 390px width before handoff.

Scaffold E — Modal / Dialog

Confirmations, destructive actions, quick-edit forms, side peek panels

Run Scaffold A, B, or C first. Then add this modal overlaid on the pageArea — do not insert into the root.

backdrop=I("pageArea", {name:"ModalBackdrop", width:SCAFFOLD_PAGE_AREA_WIDTH, height:SCAFFOLD_CANVAS_HEIGHT, bg:"rgba(0,0,0,0.48)", display:"flex", alignItems:"center", justifyContent:"center"})
modal=I("backdrop", {name:"Modal", width:480, bg:"SURFACE_COLOR", borderRadius:8, border:"1px solid BORDER_COLOR", display:"flex", flexDirection:"column", overflow:"hidden"})
modalHeader=I("modal", {name:"ModalHeader", height