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SKILL verified Apache-2.0 Self-run

Timeline Creator

skill-mhattingpete-claude-skills-marketplace-timeline-creator · by mhattingpete

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.

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Install

$ agentstack add skill-mhattingpete-claude-skills-marketplace-timeline-creator

✓ scanned · ✓ verified, works with Claude Code, Cursor, and more.

Security review

✓ Passed

No issues found. Passed automated security review. · v0.1.0 How review works →

  • ✓ Prompt-injection patterns
  • ✓ Secret / credential exfiltration
  • ✓ Dangerous shell & filesystem operations
  • ✓ Untrusted network calls
  • ✓ Known-malicious package signatures

What it can access

  • ✓ Network access No
  • ✓ Filesystem access No
  • ✓ Shell / process execution No
  • ✓ Environment & secrets No
  • ✓ Dynamic code execution No

From automated source analysis of v0.1.0. “Used” means the capability is present in the source — more access means more to trust, not that it’s unsafe.

View the full security report →

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Reliability & compatibility

✓ Security review passed
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○ 6mo ago

Declared compatibility

Claude CodeClaude Desktop

Compatibility is declared by the source manifest. End-to-end runtime verification is coming, see below.

Preview Execution monitoring

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About

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


  [Project] Timeline
  
    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) */
  

  [Project] Timeline

Timeline Bar Pattern


  Task Name
  
  [start] - [end]

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.

Source & license

This open-source skill is cataloged on AgentStack and links to its original source — we do not rehost the code.

Install and usage instructions live in the source repository linked above.

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Versions

  • v0.1.0 Imported from the upstream source.

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