Use this skill whenever the user asks to visualize a project schedule, timeline, Gantt chart, or phase/task breakdown over time. It gives the agent a prebuilt, parameterized gantt() function so Gantt charts are produced instantly and consistently — with colour-coded groups, completion overlays, a today reference line, and auto-scaled date axes — instead of hand-writing matplotlib each time.
Install
npx skills add microsoft/cat-agent-skills --skill gantt-chart-generatornpx skills add microsoft/cat-agent-skills --skill gantt-chart-generator -a claude-code -gnpx skills add microsoft/cat-agent-skills --skill gantt-chart-generator -a codex -ggemini skills install https://github.com/microsoft/cat-agent-skills.git --path submissions/gantt-chart-generatorgh skill install microsoft/cat-agent-skills gantt-chart-generatorgit clone --depth 1 https://github.com/microsoft/cat-agent-skills /tmp/microsoft__cat-agent-skills
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/microsoft__cat-agent-skills/submissions/gantt-chart-generator ~/.claude/skills/gantt-chart-generator # Claude Code
cp -R /tmp/microsoft__cat-agent-skills/submissions/gantt-chart-generator ~/.agents/skills/gantt-chart-generator # Codex, Cursor, Gemini CLI, Copilot, OpenCode