Agent skill · product strategy · borghei
porters-five-forces
Porter's Five Forces — analyze the competitive intensity and attractiveness of an industry. Use when evaluating a new market entry, diagnosing margin pressure, designing a defensive strategy, or auditing industry-level positioning.
Why this skill is useful
Provides a structured framework for industry analysis that the AI wouldn't reliably generate on its own.
What it needs
About 4k tokens when loaded. Last updated 2026-07-21. 462 stars on the source repository.
What this skill does
Porter's Five Forces Michael Porter's framework for analyzing the structural attractiveness of an industry. Reveals where profit pools form, why some markets are chronically unprofitable, and where strategic positioning has leverage. When to use this skill Market entry decision (which industry to play in) Diagnosing chronic margin pressure (why are we squeezed?) Strategic positioning (where to invest, where to defend) Competitive response planning M&A target evaluation (industry attractiveness) Pre-fundraise industry framing The 5 forces 1. Threat of new entrants — how easily can newcomers join? 2. Bargaining power of suppliers — how concentrated/critical are inputs? 3. Bargaining power of buyers — how concentrated/price-sensitive are customers? 4. Threat of substitute products — what alternatives could replace the category? 5. Competitive rivalry — how intense is competition between existing players? Plus (Porter's later addition): 6. Complementors (the "sixth force") — do partners increase total industry value? Scoring rubric Each force is rated low / medium / high based on specific factors: 1. Threat of new entrants — high when: Low capital requirements No regulatory barriers No proprietary tech / patents Low switching costs No economies of scale No brand loyalty Access to distribution is easy Network effects absent 2. Supplier power — high when: Few suppliers / concentrated supply base Suppliers are critical / cannot be substituted Switching cost is high Suppliers can forward-integrate Industry is not a large customer for supplier 3. Buyer power — high when: Few buyers / concentrated demand Buyers purchase in large volumes Product is undifferentiated Switching cost is low Buyers can backward-integrate Buyers have full information Buyers face thin margins (price pressure) 4. …
How to use it
Reference it in AdaL, Claude Code, Cursor or any coding agent — nothing to install:
@skills borghei/porters-five-forces