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stelow-product-open-source

stelow-product-open-source is a skill for Claude Code from calionauta/stelow. It costs 37 tokens per session (3,446 once invoked), scanned A, original, MIT.

A guide to building and competing with open-source software businesses, where the code is shared publicly instead of kept secret. It covers business models, company structures, and ways to create value through trust, distribution, and ongoing improvement.

In plain words
What is it for?
Use it to think through an open-source business model, decide what value comes from the code versus the surrounding system, and plan how to build trust and keep improving the product.
Why use it?
It helps replace the assumption that secret code is the main source of value. It explains how sharing code can reduce customer skepticism, speed up feedback, and support a business around the wider product and community.

Skill for Claude Code

Written for Claude Code: disable-model-invocation in frontmatter. Also seen: positional $N argument.

not rated 14repo changed 14d ago A scan SkillSpector: pass 37 tokens original MIT

Good fit Use it to think through an open-source business model, decide what value comes from the code versus the surrounding system, and plan how to build trust and keep improving the product.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/calionauta/stelow/stelow-product-open-source
View source ↗ calionauta/stelow calionauta.github.io
Install

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.

Any agent
npx skills add calionauta/stelow --skill stelow-product-open-source
Clone the repo
git clone --depth 1 https://github.com/calionauta/stelow

Made for: Claude Code.

Wrote 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.

agentmods badge for stelow-product-open-source

README.md
[![agentmods](https://agentmods.dev/badge/skills/calionauta/stelow/stelow-product-open-source/github.svg)](https://agentmods.dev/skills/calionauta/stelow/stelow-product-open-source)
Your own site
<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.

agentmods 80×15 button for stelow-product-open-source

Your own site · 80×15
<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>
Per session 37 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,446 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00037 $0.03446
Opus 5.5 $0.00015 $0.01378
Sonnet 5.5 $0.00007 $0.00689
Haiku 4.5 $0.00004 $0.00345

Measured 14d ago against content hash fb9e4002f448, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

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 14d 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.

skills/stelow-product-open-source/SKILL.md · 234 lines

How it starts

The opening of the file, as written. The whole thing — 234 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.

Read the full file on GitHub · 234 lines

Changes

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.

  1. 14d ago Changed · +5 lines fb9e4002f448
  2. 1mo ago Changed 4c622acd8ab8
  3. 1mo ago Changed · +6 lines 943f7a0d4a56
  4. 1mo ago Changed · +18 lines 4b7f4bec963e
  5. 1mo ago Changed · +7 lines 4e8414e01800
  6. 1mo ago Changed · +68 lines 241023b26910
  7. 1mo ago Changed · +22 lines 583b1a5f2842
  8. 2mo ago First seen · 108 lines · 37 tokens per session scan A 3abcdf8cd359

Subscribe to this mod's changes

stelow-product-open-source is a skill published in the GitHub repository calionauta/stelow (14 stars, last pushed 9d ago), licensed MIT. It adds 37 tokens to every session and 3,446 once invoked, about $0.0001 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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