Conciseness

Command sections (Reading, QA, Converting, Dependencies) are lean, but the ~90-line Design Ideas section ("Plain bullets on a white background won't impress anyone," full font-pairing and 10-palette tables, repeated "Don't…" admonitions) is padded relative to what the skill needs inline. Mostly efficient with a sizable block that could be tightened or externalized — the level-3 anchor; not 4 because the design block is a real, systematic verbosity cost, not a minor instance.

Actionability

Reading/QA/rendering are fully executable ("python -m markitdown presentation.gpptx", "pdftoppm -jpeg -r 150", a ready-to-use subagent prompt), but the two core authoring paths are high-level only: Editing gives "Unpack → manipulate slides → edit content → clean → pack" with no commands, and both paths rest on "Read [editing.md]" / "Read [pptxgenjs.md]" — files that do not exist in the bundle. Some concrete, executable guidance but key details missing or dead-ending — level 3; not 2 because two of the three task families are copy-paste ready.

Workflow Clarity

The QA section has a genuine feedback loop ("Re-verify affected slides — one fix often creates another problem," "Do not declare success until you've completed at least one fix-and-verify cycle"), but the editing workflow itself is a vague arrow sequence with no per-step validation — the bundled scripts/office/validate.py is never cited. Level 3 per the cap for file-modifying workflows lacking validation checkpoints; not 4 because the primary edit sequence has neither commands nor an inline validate step.

Progressive Disclosure

The Quick Reference table is clear navigation, but the two primary references — editing.md and pptxgenjs.md, cited four times as the source of "full details" — are missing from the bundle, so the disclosure chain dead-ends at the exact point detail is deferred. Additionally, the long Design Ideas block is inline content that belongs in a reference file. This matches level 2 (structure present but the load-bearing references are broken and separable content is inlined); not 3 because the problem is not weak signaling but absent targets.

Specificity

Enumerates concrete actions across the full task space: "creating slide decks, pitch decks, or presentations; reading, parsing, or extracting text… editing, modifying, or updating… combining or splitting slide files; working with templates, layouts, speaker notes, or comments" — comprehensive coverage matching the level-5 anchor. It does not sit at 4 because no meaningful capability gap remains.

Completeness

Explicitly answers both questions with concrete trigger phrases: what ("creating… reading, parsing, or extracting… editing… combining or splitting") and when ("Trigger whenever the user mentions 'deck,' 'slides,' 'presentation,' or references a .pptx filename"). Matches the level-5 anchor exactly; the level-4 anchor's caveat about a vague 'when' does not apply.

Trigger Term Quality

Covers natural terms "deck," "slides," "presentation," and the ".pptx" file extension, which is good keyword coverage — but conspicuously omits "PowerPoint," the single most common synonym users would say. Not 5 because a few natural terms are missing; not 3 because extension and multiple synonyms are present, exceeding "some relevant keywords."

Distinctiveness Conflict Risk

Clear niche anchored to a specific file format ("If a .pptx file needs to be opened, created, or touched") with distinct triggers and minimal overlap risk against non-presentation skills. Not 4: it does not merely reduce overlap with 'closely related skills' — the .pptx anchor makes conflicts unlikely.