Proto API Generator

Design implementation-ready proto3 + HTTP contracts for go-sphere scaffold projects.

If any of these are missing, ask one question at a time before proceeding. When a design decision has multiple reasonable options (message type, route strategy, pagination shape), present 2-3 options with your recommendation — do not choose unilaterally.

Operating Model

1. Follow go-sphere scaffold conventions unless the user explicitly requests deviation.
2. Treat local references as the working source of truth for scaffold rules, runtime behavior, and output shape.
3. Keep outputs protocol-first; do not rely on lint plugins, scripts, or manual edits to generated files as substitutes for reasoning checks.