Mostly efficient but padded with re-explanation of growth concepts Claude already knows — e.g. 'True CAC = Spend / Activated Users', 'K > 1 means self-sustaining viral growth', 'Volume is vanity' — and could be tightened, matching the score-2 anchor.

Provides concrete executable guidance as a prompt template: exact table column schemas, formulas (K-factor = invites x acceptance rate), and quantitative thresholds (<2% B2B / <5% consumer signup conversion, >40% organic healthy, >60% paid fragile), so it is copy-paste ready.

A clearly sequenced 5-step process (Decompose -> Measure Quality -> Assess Leverage -> Identify Bottlenecks -> Recommend) with a 7-item 'Deliver' output checklist; no validation feedback loops are needed for advisory analysis, so the destructive/batch cap does not apply.

Single self-contained file with no bundle present; content is well-organized into clearly labeled sections (Prompt Template, Steps 1-5, Output Format, Tips) with no nested or broken references, appropriate for a cohesive analysis prompt.

Lists multiple specific concrete actions — 'Diagnose where users come from, measure channel efficiency, identify organic vs. paid mix health, calculate CAC by segment, and find the highest-leverage acquisition channels' — matching the score-3 anchor.

Explicitly answers both what ('Diagnose... measure... identify... calculate...') and when via the explicit 'Use when a PM needs to understand acquisition economics...' trigger clause.

Natural user-facing terms are well covered: 'where users come from', 'channel mix', 'organic vs. paid', 'CAC', 'growth is stalling at the top of the funnel', all phrased as a user would say them.

Occupies a clear acquisition-diagnosis niche with distinct top-of-funnel/CAC triggers, and even distinguishes itself from adjacent skills like activation, making wrong-skill triggering unlikely.