# Porters Five Forces

> Analyze industry competitive dynamics using Porter's Five Forces framework. Use when entering a new market, assessing industry attractiveness, or understanding competitive positioning.

- **Type:** Skill
- **Install:** `agentstack add skill-linuszz-business-strategy-planning-skills-porters-five-forces`
- **Verified:** Yes — security-reviewed for prompt injection and unsafe behavior
- **Seller:** [linuszz](https://agentstack.voostack.com/s/linuszz)
- **Installs:** 0
- **Category:** [Agent Skills](https://agentstack.voostack.com/c/agent-skills)
- **Latest version:** 0.1.0
- **License:** MIT
- **Upstream author:** [linuszz](https://github.com/linuszz)
- **Source:** https://github.com/linuszz/business-strategy-planning-skills/tree/master/bp-strategy-design/skills/porters-five-forces

## Install

```sh
agentstack add skill-linuszz-business-strategy-planning-skills-porters-five-forces
```

Requires the [AgentStack CLI](https://agentstack.voostack.com/docs/cli). Works with Claude Code, Cursor, and any MCP-compatible agent.

## About

# Porter's Five Forces Analysis

## Metadata
- **Name**: porters-five-forces
- **Description**: Industry competitive analysis framework
- **Triggers**: five forces, competitive analysis, industry analysis, porter, market structure

## Instructions

You are a strategic analyst conducting Porter's Five Forces analysis for $ARGUMENTS.

Your task is to systematically analyze the five competitive forces that shape industry profitability.

## Framework

### Force 1: Rivalry Among Existing Competitors
**Key questions:**
- How many competitors? How balanced are they?
- Industry growth rate (slow growth = more rivalry)
- Fixed costs vs variable costs ratio
- Product differentiation level
- Exit barriers height

**Assess:** Low / Medium / High

### Force 2: Threat of New Entrants
**Barriers to entry:**
- Economies of scale
- Product differentiation / brand identity
- Capital requirements
- Switching costs for customers
- Access to distribution channels
- Government policy / regulation
- Expected retaliation from incumbents

**Assess:** Low / Medium / High

### Force 3: Bargaining Power of Suppliers
**Supplier power increases when:**
- Few suppliers, many buyers
- No substitute inputs
- Industry is not important customer
- Supplier products are differentiated
- Switching costs are high
- Threat of forward integration

**Assess:** Low / Medium / High

### Force 4: Bargaining Power of Buyers
**Buyer power increases when:**
- Few buyers, many sellers
- Products are undifferentiated
- Switching costs are low
- Buyers pose credible backward integration threat
- Product is important to buyer's costs
- Buyers have full information

**Assess:** Low / Medium / High

### Force 5: Threat of Substitutes
**Substitute threat increases when:**
- Price-performance of substitutes is attractive
- Switching costs to substitutes are low
- Buyer propensity to substitute is high

**Assess:** Low / Medium / High

## Output Process

1. **Define the industry precisely** - boundaries matter
2. **List key players** in each category (competitors, suppliers, buyers, potential entrants, substitutes)
3. **Analyze each force** with supporting evidence
4. **Rate force intensity** (Low/Medium/High)
5. **Summarize industry attractiveness** - Overall profitability potential
6. **Identify strategic implications** - How should we position?

## Output Format

```
## Porter's Five Forces: [Industry]

### Industry Definition
[Clear boundary statement]

### 1. Rivalry: [Low/Medium/High]
- Evidence point 1
- Evidence point 2
- Key driver: [main factor]

### 2. New Entrants: [Low/Medium/High]
- Evidence point 1
- Evidence point 2
- Key barrier: [main factor]

### 3. Supplier Power: [Low/Medium/High]
- Evidence point 1
- Evidence point 2
- Key driver: [main factor]

### 4. Buyer Power: [Low/Medium/High]
- Evidence point 1
- Evidence point 2
- Key driver: [main factor]

### 5. Substitutes: [Low/Medium/High]
- Evidence point 1
- Evidence point 2
- Key threat: [main factor]

### Summary
| Force | Intensity | Trend |
|-------|-----------|-------|
| Rivalry | X | ↑/→/↓ |
| New Entrants | X | ↑/→/↓ |
| Supplier Power | X | ↑/→/↓ |
| Buyer Power | X | ↑/→/↓ |
| Substitutes | X | ↑/→/↓ |

### Industry Attractiveness: [Low/Medium/High]

### Strategic Implications
1. [Implication 1]
2. [Implication 2]
3. [Implication 3]
```

## Tips

- Regulation can be a "sixth force" - mention if relevant
- Model is static - note dynamic trends
- Use quantitative evidence where possible (CAGR, HHI, margin benchmarks)
- Consider geographic scope (local vs global forces differ)

## Source & license

This open-source skill is cataloged on AgentStack and links to its original source — we do not rehost the code.

- **Author:** [linuszz](https://github.com/linuszz)
- **Source:** [linuszz/business-strategy-planning-skills](https://github.com/linuszz/business-strategy-planning-skills)
- **License:** MIT

Install and usage instructions live in the source repository linked above.

## Pricing

- **Free** — Free

## Security capabilities

Automated source analysis of v0.1.0 — what this tool can access:

- **Network access:** no
- **Filesystem access:** no
- **Shell / process execution:** no
- **Environment & secrets:** no
- **Dynamic code execution:** no

*"Yes" means the capability is present in the source — more access means more to trust, not that it is unsafe.*


## Versions

- **0.1.0** — security scan: passed — Imported from the upstream source.

## Links

- Listing page: https://agentstack.voostack.com/l/skill-linuszz-business-strategy-planning-skills-porters-five-forces
- Seller: https://agentstack.voostack.com/s/linuszz
- Browse the marketplace: https://agentstack.voostack.com/browse

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