The body is dense with pydicom-3.0 specifics Claude would not already know (pinned versions, migration deprecations, API semantics) and avoids explaining what DICOM or libraries are, so every section earns its tokens despite the length.

Provides copy-paste-ready executable code for reading, writing, pixel decoding, and LUT application, plus concrete CLI invocations with real flags, matching the fully-executable anchor.

The "Choose the workflow" decision tree and the numbered 9-step de-identification workflow include explicit validation/audit checkpoints and error-recovery guidance, satisfying the clear-sequence-with-validation anchor.

Overview points to two real one-level-deep references (transfer_syntaxes.md, common_tags.md) via clearly signaled inline links, with detailed codec/tag material appropriately split out rather than inlined.

Lists multiple concrete actions — "read, inspect, write, transform, and safely preflight" — applied to specific DICOM objects, matching the multi-action anchor rather than the vague single-action level.

Clearly states what the skill does but lacks an explicit "Use when..." trigger clause; the "Applies to..." sentence lists scope rather than usage triggers, so per the guidelines completeness is capped at 2.

Covers natural terms a DICOM user would say — "DICOM datasets", "pixel data", "transfer syntaxes", "frames", "private elements", "JSON" — giving good keyword coverage rather than only technical jargon.

The pydicom/DICOM niche with pixel-data and transfer-syntax triggers is highly specific and unlikely to fire for unrelated skills.