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skills/timeline-creator

Skills for creating stunning visual HTML documentation with modern UI design, SVG diagrams, flowcharts, dashboards, timelines, and technical documentation

name: timeline-creator
description: Create HTML timelines and project roadmaps with Gantt charts, milestones, phase groupings, and progress indicators. Use when users request timelines, roadmaps, Gantt charts, project schedules, or milestone visualizations.
mhattingpete
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How to use this skill?
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  • Open your claude app and paste the plugin bin to install the skill.

Timeline Creator

Create interactive HTML timelines and project roadmaps with Gantt charts and milestones.

When to Use

  • "Create timeline for [project]"
  • "Generate roadmap for Q1-Q4"
  • "Make Gantt chart for schedule"
  • "Show project milestones"

Components

  1. Timeline Header: project name, date range, completion %
  2. Phase Groups: Q1, Q2, Q3, Q4 or custom phases
  3. Timeline Items: tasks with start/end dates, progress, status
  4. Milestones: key deliverables with dates
  5. Gantt Visualization: horizontal bars showing duration

HTML Structure

<!DOCTYPE html>
<html>
<head>
  <title>[Project] Timeline</title>
  <style>
    body { font-family: system-ui; max-width: 1400px; margin: 0 auto; }
    .timeline-bar { background: linear-gradient(90deg, #4299e1, #48bb78); height: 20px; border-radius: 4px; }
    .milestone { border-left: 3px solid #e53e3e; padding-left: 10px; }
    /* Status colors: #48bb78 (done), #4299e1 (in-progress), #718096 (planned) */
  </style>
</head>
<body>
  <h1>[Project] Timeline</h1>
  <!-- Phase sections with timeline bars -->
  <!-- Milestones list -->
</body>
</html>

Timeline Bar Pattern

<div class="timeline-item">
  <span>Task Name</span>
  <div class="timeline-bar" style="width: [percentage]%; background: [status-color];"></div>
  <span>[start] - [end]</span>
</div>

Workflow

  1. Extract tasks, dates, phases from project
  2. Calculate duration percentages
  3. Group by phases (quarters or custom)
  4. Create HTML with Gantt-style bars
  5. Add milestones section
  6. Write to [project]-timeline.html

Use semantic colors for status, keep layout responsive.