Conciseness

Every token earns its place: thresholds, lifespans, and tactics are packed into dense tables with zero padding and no explanation of concepts Claude already knows (no "what is CTR" filler), matching the lean anchor 5 rather than anchor 4's "minor instances of over-explanation".

Actionability

Guidance is fully concrete and executable: exact thresholds ("20%+ drop from peak over 3 days", "Above 2.5 for prospecting", "Below 20% after previously >25%"), a specific action per signal, per-platform lifespan/cadence pairs, pipeline counts ("3-5 concepts in dev"), and explicit combination rules ("CTR dropping AND frequency climbing → fatigue confirmed, swap creative") — the decision tables cover the common cases, which is the instruction-only equivalent of anchor 5's copy-paste-ready coverage.

Workflow Clarity

The decision logic is unambiguous (each signal maps to one action, and "Reading Signals Together" resolves conflicts like "CPM rising alone with stable CTR → likely auction pressure, not fatigue") and sections are logically ordered, but the diagnostic process itself is never explicitly sequenced — there are no ordered steps for gathering metrics, comparing against peak, and applying the combination rules — so it matches anchor 4 rather than anchor 5's explicit sequenced workflow.

Progressive Disclosure

The skill is under 50 lines with no external references needed and no bundle files present, and it is organized into four clear, well-labeled sections (Early Warning Signals, Creative Lifespan by Platform, Anti-Fatigue Tactics, Reading Signals Together), which per the simple-skill guideline merits a 5.

Specificity

Lists several concrete capabilities ("Diagnose creative fatigue", "when to swap/rotate ads", "CTR drop / CPM rise signals"), but half the items are noun-phrase topic labels ("refresh cadence", "frequency caps", "per-platform creative lifespans") rather than verb-led actions, so it falls short of the comprehensive anchor 5 without being limited to 1-2 actions like anchor 3.

Completeness

The "what" is clear (diagnose fatigue, set refresh cadence, interpret CTR/CPM/frequency signals, per-platform lifespans), but there is no "Use when..." clause or equivalent explicit trigger guidance — "when to swap/rotate ads" describes skill content, not when to invoke the skill — so per the judging guidelines completeness is capped at 3.

Trigger Term Quality

Includes natural terms paid-media users actually say — "creative fatigue", "swap/rotate ads", "frequency caps", "CTR drop", "CPM rise" — but misses common synonyms and variations such as "ad fatigue", "creative burnout", or "ad rotation", so it matches anchor 4 rather than the comprehensive synonym coverage of anchor 5.

Distinctiveness Conflict Risk

Occupies a clear niche (creative fatigue in paid advertising) with distinct metric-based triggers (CTR drop, CPM rise, frequency caps) unlikely to fire for unrelated skills, though it could minorly overlap with broader ad-campaign-management skills, matching anchor 4 rather than the minimal-conflict anchor 5.