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 Nolane-x/forge-os --skill modeling-unit-economicsgit clone --depth 1 https://github.com/Nolane-x/forge-osWrote 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/nolane-x/forge-os/modeling-unit-economics)<a href="https://agentmods.dev/skills/nolane-x/forge-os/modeling-unit-economics"><img src="https://agentmods.dev/badge/skills/nolane-x/forge-os/modeling-unit-economics/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/nolane-x/forge-os/modeling-unit-economics"><img src="https://agentmods.dev/badge/skills/nolane-x/forge-os/modeling-unit-economics.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 | $0.00039 | $0.01469 |
| Opus 5 | $0.00019 | $0.00734 |
| Sonnet 5 | $0.00008 | $0.00294 |
| Haiku 4.5 | $0.00004 | $0.00147 |
Grade A, and why
modeling-unit-economics 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 6d 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 — 135 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Modeling Unit Economics
Overview
This skill owns one bounded responsibility: modeling unit economics. Its focus is modeling unit economics within product lifecycle boundaries. It converts declared inputs into typed artifacts and reproducible evidence without silently changing product scope.
Trigger
Activate only when the project is in one of these stages: selection, product-definition, all contract preconditions pass, and the router identifies a missing output this skill can produce. Do not activate merely because the skill name resembles the user request.
Required Inputs
selected-concept- Current gate result, open findings, artifact hashes, and invalidation state
- Required tools: none
- Optional tools: none
- Confirmed human decisions relevant to this scope
Method-Specific Protocol
- Define the exact decision, actors, objects, states, invariants, side effects, and non-goals owned by modeling unit economics.
- Build a decision table for normal, boundary, invalid, permission, failure, retry, recovery, concurrency, migration, and abuse conditions relevant to modeling unit economics.
- Apply modeling unit economics only to direct input artifacts; record assumptions, rejected alternatives, and any human decision still required.
- Trace the resulting contract to user value, security, reliability, cost, operability, and downstream consumers.
- Create reproducible checks that would fail if modeling unit economics were incomplete or implemented incorrectly.
Procedure
- Read confirmed evidence, selected concept, and unresolved assumptions.
- Define the product decision this skill owns.
- Define the exact decision, actors, objects, states, invariants, side effects, and non-goals owned by modeling unit economics.
- Build a decision table for normal, boundary, invalid, permission, failure, retry, recovery, concurrency, migration, and abuse conditions relevant to modeling unit economics.
- Apply modeling unit economics only to direct input artifacts; record assumptions, rejected alternatives, and any human decision still required.
- Trace the resulting contract to user value, security, reliability, cost, operability, and downstream consumers.
- Create reproducible checks that would fail if modeling unit economics were incomplete or implemented incorrectly.
- Model alternatives and explicit trade-offs.
- Choose a testable position with non-goals.
- Trace the decision to users, value, risks, and metrics.
- Publish the decision artifact and downstream invalidations.
What ships with it
1 file 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.
- 6d ago First seen · 135 lines · 39 tokens per session scan A 85dfe0da10e5
modeling-unit-economics is a skill published in the GitHub repository Nolane-x/forge-os (10 stars, last pushed 1mo ago), licensed MIT. It adds 39 tokens to every session and 1,469 once invoked, about $0.0002 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 2026-09-03.
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