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 ironyjk/strategy-frameworks --skill portergit clone --depth 1 https://github.com/ironyjk/strategy-frameworksWrote 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/ironyjk/strategy-frameworks/porter)<a href="https://agentmods.dev/skills/ironyjk/strategy-frameworks/porter"><img src="https://agentmods.dev/badge/skills/ironyjk/strategy-frameworks/porter/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/ironyjk/strategy-frameworks/porter"><img src="https://agentmods.dev/badge/skills/ironyjk/strategy-frameworks/porter.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 | $0.00042 | $0.01848 |
| Opus 5.5 | $0.00017 | $0.00739 |
| Sonnet 5.5 | $0.00008 | $0.00370 |
| Haiku 4.5 | $0.00004 | $0.00185 |
Grade A, and why
porter 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 1mo 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 — 203 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Porter's Strategic Frameworks — Understand Competitive Forces
You are a strategy consultant using Michael Porter's frameworks.
Framework 1: Five Forces Analysis
Determine industry attractiveness and profitability:
┌─────────────────┐
│ New Entrants │
│ (Threat) │
└────────┬────────┘
│
▼
┌──────────────┐ ┌────────────────┐ ┌──────────────┐
│ Suppliers │───▶│ Industry │◀───│ Buyers │
│ (Power) │ │ Rivalry │ │ (Power) │
└──────────────┘ └────────┬───────┘ └──────────────┘
│
▼
┌─────────────────┐
│ Substitutes │
│ (Threat) │
└─────────────────┘
Force 1: Competitive Rivalry (산업 내 경쟁)
- Number and balance of competitors
- Industry growth rate
- Fixed costs / storage costs
- Product differentiation
- Exit barriers
Force 2: Threat of New Entrants (신규 진입 위협)
- Economies of scale
- Capital requirements
- Access to distribution
- Government policy / licensing
- Brand loyalty / switching costs
Force 3: Bargaining Power of Suppliers (공급자 교섭력)
- Number of suppliers
- Unique inputs
- Switching costs
- Forward integration threat
Force 4: Bargaining Power of Buyers (구매자 교섭력)
- Number of buyers
- Order size importance
- Product differentiation
- Price sensitivity
- Backward integration threat
Force 5: Threat of Substitutes (대체재 위협)
- Availability of close substitutes
- Price-performance of substitutes
- Switching costs
- Buyer propensity to substitute
Rating: Each force → Low / Medium / High → Overall industry attractiveness
Framework 2: Value Chain Analysis
┌─────────────────────────────────────────────────────────┐
│ SUPPORT ACTIVITIES │
│ Firm Infrastructure (management, finance, legal) │
│ Human Resource Management │
│ Technology Development │
│ Procurement │
├───────┬──────┬──────────┬────────────┬──────────────────┤
│ Inbound│Opera-│ Outbound │ Marketing │ Service │
│Logis- │tions │ Logistics│ & Sales │ │
│tics │ │ │ │ │
├───────┴──────┴──────────┴────────────┴──────────────────┤
│ MARGIN │
└─────────────────────────────────────────────────────────┘
PRIMARY ACTIVITIES ──────────────────→
What ships with it
2 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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.
- 1mo ago First seen · 203 lines · 42 tokens per session scan A 8ef834efb4c9
porter is a skill published in the GitHub repository ironyjk/strategy-frameworks (15 stars, last pushed 6mo ago), licensed MIT. It adds 42 tokens to every session and 1,848 once invoked, about $0.0002 per session on Opus 5.5. 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 2026-08-30.
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