Model and document existing or planned software architectures with the C4 model across System Context, Container, and Component levels plus deployment diagrams, then emit diagrams through a selected renderer. Use when an architect needs audience-appropriate software architecture documentation; use the 'architecture-diagrams' skill for infrastructure topology.
Install
npx skills add microsoft/hve-core --skill c4-architecturenpx skills add microsoft/hve-core --skill c4-architecture -a claude-code -gnpx skills add microsoft/hve-core --skill c4-architecture -a codex -ggemini skills install https://github.com/microsoft/hve-core.git --path .github/skills/hve-core/c4-architecturegh skill install microsoft/hve-core c4-architecturegit clone --depth 1 https://github.com/microsoft/hve-core /tmp/microsoft__hve-core
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/microsoft__hve-core/.github/skills/hve-core/c4-architecture ~/.claude/skills/c4-architecture # Claude Code
cp -R /tmp/microsoft__hve-core/.github/skills/hve-core/c4-architecture ~/.agents/skills/c4-architecture # Codex, Cursor, Gemini CLI, Copilot, OpenCode