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 calionauta/stelow --skill stelow-product-open-sourcegit clone --depth 1 https://github.com/calionauta/stelowWrote 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/calionauta/stelow/stelow-product-open-source)<a href="https://agentmods.dev/skills/calionauta/stelow/stelow-product-open-source"><img src="https://agentmods.dev/badge/skills/calionauta/stelow/stelow-product-open-source/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/calionauta/stelow/stelow-product-open-source"><img src="https://agentmods.dev/badge/skills/calionauta/stelow/stelow-product-open-source.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
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 | $0.00037 | $0.01518 |
| Opus 5 | $0.00018 | $0.00759 |
| Sonnet 5 | $0.00007 | $0.00304 |
| Haiku 4.5 | $0.00004 | $0.00152 |
Grade A, and why
stelow-product-open-source 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 2d 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 — 130 lines — stays where its author put it; the contents beside it link to each section on GitHub.
The Open Source Paradox: Delivering Value by Giving Up Control
The Problem of the Proprietary Code Approach
The belief that value resides in the secrecy of code creates constant friction:
- The customer needs to trust a "black box"
- High cost to acquire customers (convincing that the secret solution is better)
- Slow feedback cycle and isolated development
- Software creation itself (especially low complexity) is becoming a commodity — with good developers and advanced AI, replicating features is faster than ever
The Alternative Perspective
The product is not the code — it's the living system. The strategy shifts from protection to curation. Open source becomes the ideal vehicle for this, accelerating distribution and building trust — which become the true differentials, harder to replicate.
Analogy: publishing the recipe for a complex dish. The recipe (the code) can be copied. Other restaurants can even use the recipe. But the value of the original restaurant lies in the consistency of execution, in the atmosphere, in the trust that customers have, and — perhaps most importantly — in the evolution of the menu. The free recipe didn't cannibalize the business; it created the market.
Business Models with Open Source
Open-core: the core software (which solves the problem for most users) is open and free. Monetization comes from "premium" closed-source features that solve corporate niche problems (advanced security, integrations, administration tools).
Managed Hosting (Software as a Service): sell convenience. "You can host this yourself, configure, update, worry about security. Or you can pay us a monthly fee to do it all for you." Examples: WordPress.com (vs. WordPress.org), GitLab.
Consulting, Support, and Training: the software is 100% free, but using it at scale requires deep knowledge. The company that created it sells that knowledge in the form of technical support, consulting, and training. Example: Red Hat on top of Linux.
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.
- 2d ago Changed · +22 lines 583b1a5f2842
- 11d ago First seen · 108 lines · 37 tokens per session scan A 3abcdf8cd359
stelow-product-open-source is a skill published in the GitHub repository calionauta/stelow (10 stars, last pushed today), licensed MIT. It adds 37 tokens to every session and 1,518 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 2026-08-30.
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