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dart-toolchain
Use when the user formats or lints Dart or Flutter source code from the command line - dart format is the formatter (Black-style, mutates by default) and dart analyze is the static analyzer (errors, warnings, lints). Both ship with the Dart SDK; no separate install.
Install with Codex or Claude Copy this prompt, paste it into Codex, Claude, or another assistant, and let it review the skill page and install it for you.