The body is lean and assumes Claude's competence: it skips explaining what Dart is and jumps to concrete commands, tucking tangential cross-compilation detail into a <details> block so every remaining token earns its place.

It provides copy-paste-ready commands (`dart create -t cli`, `dart compile exe bin/cli.dart -o ...`) and two complete, executable Dart code examples (CommandRunner and integration test), fully matching the executable-guidance anchor.

Both Task Progress checklists give a clearly sequenced process with explicit validation checkpoints ("Run validator" steps for format, analyze, test, and help-text verification) before proceeding, matching the clear-sequence-with-validation anchor.

With no bundle files, the single ~185-line body is well organized into a TOC and focused sections with a one-level collapsible <details> block, satisfying the well-organized single-file allowance.

Names a concrete domain ("entrypoint structure, exit codes, cross-platform scripts") but lists only a few high-level actions rather than a comprehensive set of specific capabilities, matching the 'names domain and some actions' anchor.

Explicitly states what it does ("Entrypoint structure, exit codes, cross-platform scripts") and when to use it ("Use when building command line utilities, scripts, or applications"), satisfying both what and when.

"building command line utilities, scripts, or applications" covers common phrasings but omits frequent variations like CLI, terminal, or console apps, fitting 'some relevant keywords but missing common variations'.

The Dart-scoped context helps, but "scripts" and "applications" are generic triggers that could overlap with other build/tooling skills, matching 'somewhat specific but could still overlap'.