What problem does it solve? Deciding whether to build a free tool (calculator, generator, analyzer) for marketing is risky without a framework — teams waste engineering effort on tools with no search demand, poor lead quality, or unsustainable maintenance. This Skill provides a structured strategy for planning, validating, and scoping engineering-as-marketing tools. ## Core Features & Use Cases - Ideation & Validation Framework: Generate tool ideas from audience pain points and score them with an 8-factor evaluation scorecard (search demand, audience match, uniqueness, build feasibility, and more). - Lead Capture & Gating Strategy: Choose between fully gated, partially gated, and ungated models with tradeoff analysis for lead volume versus usage and SEO. - Tool Type Reference: Detailed guidance on calculators, generators, analyzers, testers, libraries, and interactive tools, with industry-specific examples in references/tool-types.md. - Use Case: A SaaS company selling email marketing software asks which free tool to build. The Skill generates candidate ideas (subject line tester, ROI calculator, deliverability checker), scores each against the evaluation scorecard, and recommends an MVP scope with a partial-gating lead capture plan. ## Quick Start Ask the AI to evaluate whether building a free ROI calculator for your product is worth it and to recommend an MVP scope and lead capture strategy.