rust-scaffoldlisted

# rust-scaffold The project-init layer for Rust: scaffolding a new crate, the lib/bin decision, the Cargo.toml template, MSRV policy, feature flag design, the lib+bin code layout, rustdoc conventions, and edition migration. For CI/lint/testing setup, use `rust-quality`. For workspace structure, use `rust-workspace`. For publishing, use `rust-release`. --- ## §1. When this skill fires **Use this skill when the user says any of:** - "Scaffold a new Rust project" - "Cargo.toml template" - "lib + bin project layout" - "Feature flag design" - "Pick an MSRV for a new project" - "Migrate to edition 2024" - "Write rustdoc for my crate" - "Add an example to my crate" **DO NOT use this skill for:** ## CONTRAST - NOT for: CI / clippy / nextest / deny — use rust-quality - NOT for: workspace / member coordination — use rust-workspace - NOT for: version / publish / deprecation — use rust-release - This skill is the project-init layer; the others are for ongoing concerns --- ## §2. Reference index The mechanism content lives in references/. Read the right one before scaffolding the corresponding piece. The hub itself is a router — it points you at the right reference, the references carry the mechanism. You MUST read `references/cargo-and-features.md` BEFORE writing a new Cargo.toml or designing features. It teaches the lib-only / bin-only / lib+bin decision tree (with the "default to lib+bin" rule for anything that may grow), the recommended Cargo.toml template (edition 2024, MS