Conciseness

The body is dense and assumes Claude's competence — no padding and no explanation of concepts Claude already knows; every section carries non-obvious specifics ("a page's own median over the prior comparable window", republish-date thresholds). Anchor 4 rather than 5 because the publish-time index-push paragraph and the handoff-tuple field list carry operational detail that could be trimmed into a reference file.

Actionability

Guidance is concrete and executable throughout: exact numeric thresholds (30% decay trigger, 40-60 word FAQs, 7/14/28/56-day readbacks, 2-5 internal links), copy-paste commands ("python3 \"${CLAUDE_PLUGIN_ROOT}/scripts/connectors/indexpush.py\" indexnow <url> --key $INDEXNOW_KEY --live"), a mode-selector table, and worked quick-start prompts covering both modes — matches the anchor-5 standard for an instruction-only skill.

Workflow Clarity

Both nine-step workflows are clearly sequenced with explicit validation checkpoints: a Final SEO + CORE-EEAT Self-Check that auto-fixes into a "### Changes Made" table, a pre-handoff quality bar, refresh readback windows judged against a control set, and a Decision Gates section with explicit stop/continue rules and mismatch handling. Anchor 5, not 4, because checkpoints and error paths are explicit rather than implicit.

Progressive Disclosure

Good structure: the body is an overview with a clearly signaled, one-level-deep Reference Materials list, and all 7 local references/*.md files exist with substantive matching content (verified). Anchor 4 rather than 5 because several referenced paths (../../../references/skill-contract.md, ../../../CONNECTORS.md, ../../../SECURITY.md, ../../../references/measurement-protocol.md, ../../tune/content-quality-auditor/SKILL.md) do not resolve within this bundle, breaking navigation at the bundle boundary.

Specificity

Names several concrete actions for both modes ("new drafts pages with keywords, headers, snippets, and evidence boundaries"; "refresh scores decay, prioritizes update work, and produces a republish plan"), but terms like "evidence boundaries" and "GEO guidance" are domain shorthand rather than plain actions — anchor 4, not 5, and well above the 1-2 concrete actions of anchor 3.

Completeness

Explicitly answers both questions: a clear "what" (two modes with their distinct outputs) and an explicit "Use when the user asks to…" clause with concrete trigger phrases, exactly matching anchor 5; not 4 because the "when" is explicit and trigger-phrased rather than merely present.

Trigger Term Quality

Includes natural quoted trigger phrases users would actually say ("write SEO content", "draft a blog post / landing page", "update outdated content", "fix traffic/ranking decay"), but misses common variations like "refresh this article", "recover rankings", or "SEO article" — anchor 4 rather than comprehensive anchor 5.

Distinctiveness Conflict Risk

Carves a clear two-mode niche and adds explicit negative boundaries ("Not for AI-citation/GEO readiness scoring — use geo-content-optimizer; not for publish-gate scoring — use content-quality-auditor"), giving minimal conflict risk — anchor 5, not 4, because overlap is addressed rather than merely minor.