Conciseness

The body is lean and directive throughout — "Use an absolute file path", "Do not import the PPTX until `preflight_checks.json` has `status: \"passed\"`", "Tighten copy before shrinking fonts", "Source notes should be visible but quiet". No section explains concepts Claude already knows (what HTML is, how PPTX works); every line is either a step, a command, or a constraint. This matches the 'every token earns its place' anchor; there is no padding to trim down to a 4.

Actionability

The core command is copy-paste ready with standard skill placeholders (`python3 <REPORT_TO_GOOGLE_SLIDES_SKILL_DIR>/scripts/report_to_google_slides.py <LOCAL_HTML_REPORT_PATH> --out-dir /tmp/report_to_google_slides`), expected outputs are enumerated by exact filename (`deck.pptx`, `manifest.json`, `deck_plan.json`, `preflight_checks.json`), verification uses a concrete command (`unzip -t <out-dir>/deck.pptx`), and import names the exact MCP tools and parameter (`mcp__codex_apps__google_drive._import_presentation` with `upload_mode="native_google_slides"`). All referenced files exist in the bundle.

Workflow Clarity

The six-step workflow is clearly sequenced with explicit validation checkpoints and a repair feedback loop: preflight status must be "passed" before import, the PPTX is zip-tested, imported slides are verified via `_get_slide_thumbnail` for every slide when possible, and step 5 ("Repair before handoff") instructs revising and regenerating when thumbnails show clipped text, missing charts, low contrast, blank images, or awkward sizing. This is the anchor-5 pattern (validate → fix → re-run), well above the 4-level anchor which tolerates missing checkpoints.

Progressive Disclosure

SKILL.md is a concise overview plus workflow; all heavy lifting (2524 lines of conversion logic) lives in `scripts/report_to_google_slides.py`, referenced one level deep with the skill-dir placeholder and confirmed to exist. Sections (Workflow, Standards, Visual System) are well organized, nothing that belongs in a separate file is inlined, and there are no nested or dangling references.

Specificity

"Narrow conversion skill" names the domain (HTML analytics report → Google Slides) and exactly one concrete action: "convert an existing HTML analytics report into a native Google Slides deck". This matches the anchor for naming the domain with 1-2 concrete actions but not comprehensive coverage — it never lists the intermediate capabilities (parse the report, render chart images, run preflight checks, import via Drive).

Completeness

Both questions are answered explicitly: what — a conversion skill producing a "native Google Slides deck" from an "existing HTML analytics report"; when — "Invoke only when the user explicitly asks to convert". The 'when' clause is a concrete, explicit trigger phrase rather than weakly implied, matching the top anchor exactly; the 4-level anchor's caveat ('when' could be more explicit) does not apply.

Trigger Term Quality

Natural phrases a user would actually say are present: "convert", "HTML analytics report", "Google Slides", "deck". Not a 5 because common synonyms and extensions are missing — ".html", "presentation", "slides", "report" on its own — so the 5-level 'comprehensive coverage including synonyms and file extensions' anchor is not met; it is clearly above the 3-level 'missing common variations'.

Distinctiveness Conflict Risk

The niche is unambiguous — converting an existing HTML analytics report into a native Google Slides deck — which few skills would claim, and the "Invoke only when the user explicitly asks" boundary further reduces false triggers. This is a clear niche with distinct triggers and minimal conflict risk; adjacent skills (generic pptx creation, report generation) trigger on different phrasing.