MoonBit toolchain

Verification contract

Every command and configuration shape in this skill was executed for real against moon 0.1.20260803 / moonrun 0.1.20260803 (MoonBit release 0.10.6, build 2026-08-03) on 2026-08-07, Linux x86_64, exercising targets wasm-gc, wasm, js, native. MoonBit ships install channels (latest, nightly, pre-release), not pinned historical versions, so re-check the installed version before relying on a cached skill copy.

Before relying on this skill, run moon version --all (or node scripts/env_report.ts, which also checks native-backend prerequisites). If versions differ from the pin:

1. Prefer moon help <subcommand> and moon <subcommand> --help output over this skill for exact flags.
2. Re-run any load-bearing command in a scratch module (moon new probe --user tmp) before promising its behavior.
3. Compare against the official latest version manifest and current documentation; do not wait for a matching monthly Updates article.
4. State the version difference in your answer.

Non-negotiable working rules