HTML Mockups

Output Location

Write mockups to the task directory if one exists:

• .humanlayer/tasks/{task-slug}/mockup-{description}.html

Or to a reasonable location the user specifies.

Each mockup must be a single self-contained file: put all CSS in a <style> block and all JS in a <script> block. Do not split shared styles or scripts into sibling files. The cloud viewer serves every artifact from its own signed URL, so an HTML file that links to a sibling .css or .js file renders unstyled there even though it looks right when opened from disk.

Design System: Poimandres Theme

Color Palette

:root {
  /* Backgrounds */
  --terminal-bg: #1b1e28;           /* Primary background - very dark blue-gray */
  --terminal-bg-alt: #303340;       /* Secondary/elevated background */

  /* Text */
  --terminal-fg: #a6accd;           /* Primary text - muted purple-gray */
  --terminal-fg-dim: #767c9d;       /* Secondary/muted text */

  /* Semantic Colors */
  --terminal-accent: #add7ff;       /* Primary accent - bright cyan blue */
  --terminal-success: #5de4c7;      /* Success/positive - mint green */
  --terminal-warning: #fffac2;      /* Warning/caution - pale yellow */
  --terminal-error: #d0679d;        /* Error/destructive - pink/magenta */

  /* Borders & Inputs */
  --terminal-border: #303340;       /* Border color - matches bg-alt */
  --terminal-input-bg: #ffffff05;   /* Input background - 5% white */
  --terminal-input-border: #ffffff10; /* Input border - 10% white */
  --terminal-selection: #717cb425;  /* Selection highlight */

  /* Derived */
  --terminal-accent-dim: rgba(173, 215, 255, 0.3);  /* 30% accent */
}

Typography

• Font Family: 'JetBrains Mono', 'Fira Code', monospace
• Base Size: 13px for body text
• Labels: 10-11px, uppercase, letter-spacing 1-1.5px
• Buttons: 10-11px, uppercase, letter-spacing 1-1.5px, font-weight 500

Button Styling