What problem does it solve? When starting a new Jac project, developers must know which project kind they are building (CLI, API service, full-stack app, native binary, wasm, desktop, mobile, or package) and which build commands and guides apply. This Skill routes every Jac project kind to its correct build verbs and companion guides so nothing is guessed. ## Core Features & Use Cases - Kind routing table: Maps 11 project kinds (CLI, native binary, API service, microservices, PyPI package, npm package, shared library, full-stack app, wasm, desktop, mobile) to their build/run commands and required guides. - Kind-aware tooling: Explains how jac create --kind <kind> scaffolds projects and how a bare jac run resolves the right action (execute, serve, or build) from jac.toml. - Cross-cutting guide index: Lists always-on guides like jac-core-cheatsheet, jac-types, jac-codespaces, testing, and debugging that apply to every kind. - Use Case: You want to ship a Jac library as a pip-installable package. Load this Skill, find the PyPI row, and learn to run jac build --as wheel plus which packaging guides to read. ## Quick Start Ask the agent to load the jac-project-kinds guide and recommend the right project kind, build commands, and guides for the Jac application you want to build.