gantt-chart

name	gantt-chart
description	Create a visual project timeline with SVG Gantt chart, Mermaid critical path diagram, dependency matrix, and milestone tracking. Use after JIRA structure and dependency analysis are complete.
allowed-tools	Read, Grep, Glob, Write, Bash

Generate GANTT-CHART.md at the repository root and .github/gantt-chart.svg.

Process

1. Read JIRA-STRUCTURE.md for epic IDs, durations, and phase assignments
2. Read _research/DEPENDENCY-ANALYSIS.md for critical path and dependencies
3. Generate the SVG Gantt chart following the spec in svg-spec.md
4. Write the Mermaid critical path flowchart
5. Build the dependency matrix table
6. Define milestones with success criteria

Required Sections in GANTT-CHART.md

1. Project Timeline header: Duration and date range
2. Embedded SVG: ![Gantt Chart](.github/gantt-chart.svg)
3. Critical Path: Mermaid graph LR flowchart showing blocking dependencies, color-coded by phase
4. Dependency Matrix: Table (Epic | Depends On | Blocks | Phase)
5. Milestones: Table (Milestone | Week | Date | Success Criteria | Owner), 3-5 milestones

SVG Requirements

See the svg-gantt-generator skill for the full SVG specification. Key points:

• 1280px wide, dark theme (#0f172a background)
• Phase-coded gradient bars (blue/green/amber/purple)
• Sub-task bars nested under epics
• Week grid columns
• Milestone diamond markers

Quality Criteria

• SVG renders in GitHub markdown
• All epics from JIRA structure represented
• Critical path Mermaid diagram renders
• Dependencies mapped in matrix table
• 3-5 milestones with success criteria