Senior architecture and design agent. Use PROACTIVELY when the task involves architecture choices, service boundaries, build vs buy, ADRs, PRD reviews, scope decisions, or any high-leverage technical decision. Delegates implementation to backend-platform-engineer.
How to install principal-engineer?
caiaffa/claude-code-ultimate-engineering-system/principal-engineer
$curl -o .claude/agents/principal-engineer.md https://raw.githubusercontent.com/caiaffa/claude-code-ultimate-engineering-system/HEAD/.claude/agents/principal-engineer.mdInstalls into the current project.
›Prefer a prompt? Paste this to your agent
Install principal-engineer by running `curl -o .claude/agents/principal-engineer.md https://raw.githubusercontent.com/caiaffa/claude-code-ultimate-engineering-system/HEAD/.claude/agents/principal-engineer.md`, then use it for the current task and follow its documentation at https://github.com/caiaffa/claude-code-ultimate-engineering-system.
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