Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add fzfclee/consulting-skills --skill porter-five-forcesgit clone --depth 1 https://github.com/fzfclee/consulting-skillsWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/fzfclee/consulting-skills/porter-five-forces)<a href="https://agentmods.dev/skills/fzfclee/consulting-skills/porter-five-forces"><img src="https://agentmods.dev/badge/skills/fzfclee/consulting-skills/porter-five-forces/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/fzfclee/consulting-skills/porter-five-forces"><img src="https://agentmods.dev/badge/skills/fzfclee/consulting-skills/porter-five-forces.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00050 | $0.00737 |
| Opus 5 | $0.00025 | $0.00368 |
| Sonnet 5 | $0.00010 | $0.00147 |
| Haiku 4.5 | $0.00005 | $0.00074 |
Grade A, and why
porter-five-forces scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 10d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 87 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Porter Five Forces
Use this skill to run Porter Five Forces as a practical consulting method, not as a generic framework explanation.
Method Notes
- Analyze the industry or market structure, not one company in isolation.
- Cover rivalry, entrants, substitutes, buyer power, and supplier power.
Required Inputs
Collect or infer these inputs before execution:
- industry or market
- competitors
- customers
- suppliers
- substitutes
If an input is missing, do not block automatically. Mark it as missing, state the assumption used, and add a validation action.
When Not To Use
Do not use when the industry boundary is unclear or when the task is to compare individual competitors and features. Five Forces examines industry economics and bargaining structure, not company execution.
Adjacent Methods
pestel-analysis: macro external forces.competitive-positioning: buyer-facing differentiation and proof.
Step-by-Step Execution
| Step | Required input | How to execute | Output |
|---|---|---|---|
| Define industry boundary | Industry, geography, segment, value chain position. | State the market level being analyzed and exclude unrelated markets. | Industry boundary. |
| Analyze five forces | Competitors, buyers, suppliers, entrants, substitutes. | Assess rivalry, buyer power, supplier power, new entrants, and substitutes. | Five-forces evidence table. |
| Rate force strength | Evidence table. | Rate each force high/medium/low with evidence and trend direction. | Force strength profile. |
| Identify profit pressure | Force profile, economics, margins, switching costs. | Explain which forces capture value away from the business. | Industry attractiveness diagnosis. |
| Choose strategic response | Diagnosis and company constraints. | Recommend positioning, differentiation, partnership, pricing, channel, or moat actions. | Competitive strategy implications. |
Output Template
### 1. Industry Boundary
Market:
Geography:
Customer:
Time horizon:
### 2. Five Forces
| Force | Strength | Evidence | Profit mechanism | Trend |
|---|---|---|---|---|
| | | | | |
### 3. Structural Pressure
Most important pressure:
Attractive niche / position:
Uncertainty:
### 4. Strategic Responses
| Response | Force addressed | Feasibility | Risk | Validation |
|---|---|---|---|---|
| | | | | |
### Evidence And Next Decision
- Confirmed facts:
- Assumptions:
- Missing evidence:
- Next action, owner, and timing:
- Expected signal and decision threshold:
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 10d ago First seen · 87 lines · 50 tokens per session scan A a8b3688504ac
porter-five-forces is a skill published in the GitHub repository fzfclee/consulting-skills (4 stars, last pushed 21d ago), licensed Apache-2.0. It adds 50 tokens to every session and 737 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
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