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 tupe12334/instinct --skill porters-value-chaingit clone --depth 1 https://github.com/tupe12334/instinctWrote 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/tupe12334/instinct/porters-value-chain)<a href="https://agentmods.dev/skills/tupe12334/instinct/porters-value-chain"><img src="https://agentmods.dev/badge/skills/tupe12334/instinct/porters-value-chain/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/tupe12334/instinct/porters-value-chain"><img src="https://agentmods.dev/badge/skills/tupe12334/instinct/porters-value-chain.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 | $0.00028 | $0.02446 |
| Opus 5 | $0.00014 | $0.01223 |
| Sonnet 5 | $0.00006 | $0.00489 |
| Haiku 4.5 | $0.00003 | $0.00245 |
Grade A, and why
porters-value-chain 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 9d 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 — 166 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Porter's Value Chain
Overview
Developed by Michael Porter, the Value Chain disaggregates a firm into the discrete activities it performs to design, produce, market, deliver, and support its product. Every activity either adds cost or creates value — competitive advantage emerges when a firm performs activities more cheaply or distinctively than rivals.
SUPPORT ACTIVITIES
┌─────────────────────────────────────────────────────────────────┐
│ Firm Infrastructure (finance, legal, planning, QA) │
├─────────────────────────────────────────────────────────────────┤
│ Human Resource Management (recruit, train, incentivize) │
├─────────────────────────────────────────────────────────────────┤
│ Technology Development (R&D, process automation, IP) │
├─────────────────────────────────────────────────────────────────┤
│ Procurement (supplier contracts, purchasing policies) │
└──────┬──────────┬──────────┬──────────┬──────────┬─────────────┘
│ │ │ │ │
INBOUND OPERATIONS OUTBOUND MARKETING SERVICE
LOGISTICS LOGISTICS & SALES
│ │ │ │ │
└──────────┴──────────┴──────────┴──────────┘
PRIMARY ACTIVITIES ──► MARGIN
Activity Definitions
Primary Activities
1 — Inbound Logistics
Receiving, storing, and distributing inputs to the production process.
- Examples: supplier relationships, warehousing, inventory management, raw-material handling, just-in-time delivery
2 — Operations
Transforming inputs into the final product or service.
- Examples: manufacturing, assembly, packaging, equipment maintenance, quality control, facility operations
3 — Outbound Logistics
Collecting, storing, and distributing the product to buyers.
- Examples: finished-goods warehousing, order fulfillment, distribution network, delivery scheduling, returns handling
4 — Marketing and Sales
Providing the means for buyers to purchase the product and inducing them to do so.
- Examples: channel selection, advertising, pricing, sales force, promotions, market research
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.
- 9d ago First seen · 166 lines · 28 tokens per session scan A 7f186e616bb6
porters-value-chain is a skill published in the GitHub repository tupe12334/instinct (1 stars, last pushed 23d ago), licensed MIT. It adds 28 tokens to every session and 2,446 once invoked, about $0.0001 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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