Gantt / Roadmap Skill

A list of tasks doesn't show what runs in parallel, what blocks what, or where the crunch is. A Gantt chart does. This skill turns a plan into a Mermaid Gantt chart with phases (sections), dated tasks, dependencies, and milestones — a real schedule, not a wish list. Because the output carries real dates, the playground can also export it straight to a calendar (.ics).

Required Inputs

Ask for these only if they aren't already provided:

• The work — phases and tasks to schedule.
• Timing — a start date, and durations or end dates (or relative ordering you can date from the start).
• Dependencies — what must finish before what can start.
• Milestones — the dated checkpoints (kickoff, beta, GA, launch).

If exact dates aren't given, anchor to a start date and lay tasks out by stated duration/order; flag the dates as planning estimates.

Output Format