timeline-creator

What the source does

• FilesystemNone observedNo reads or writes in the source
• NetworkNone observedNo outbound calls in the source
• ShellNone observedNo commands run in the source
• DependenciesPinnedNothing floats
• SecretsNone foundNo keys in source

Five audit layers

Gates applied: no behavioural pass.

Audit 0.4.1 · source sha 83fe3b79ed8a · 29 Oct 2026Report an issue or request a re-scan

• Publishermhattingpete GitHub userOwner of the repository this skill is read from
• Source foldermhattingpete/claude-skills-marketplace/visual-documentation-plugin/skills/timeline-creatorThe exact folder we audited
• LicenceApache-2.0As the repository states it
• Commit pinned for this verdict83fe3b79ed8aA new audit runs when the source changes
• Repository statusNot archivedLast push 95 days ago
• Sandboxed runNot runSkills are read, not executed; layer L4 is skipped

Its 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…

---
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.
---

# 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

```html
<!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

```html
<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.

Excerpt, first 1,927 characters of SKILL.md, verbatim from the audited commit. It is text from someone else’s repository, quoted so you can judge it before your agent reads it.

git clone https://github.com/mhattingpete/claude-skills-marketplace
git -C claude-skills-marketplace checkout 83fe3b79ed8a

Works in

1. 2026-10-29
   ✓SAFE B 89 / 100

   first audit · source 83fe3b79ed8a

Questions about timeline-creator

• github.com/mhattingpete/claude-skills-marketplace/tree/main/visu — the audited source at commit 83fe3b79ed8a and every finding aboveObserved · 29 Oct 2026

Spotted something wrong? Report a correction · Methodology