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 human-avatar/skills-for-humanity --skill s4h-ecology-carrying-capacitygit clone --depth 1 https://github.com/human-avatar/skills-for-humanityWrote 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/human-avatar/skills-for-humanity/s4h-ecology-carrying-capacity)<a href="https://agentmods.dev/skills/human-avatar/skills-for-humanity/s4h-ecology-carrying-capacity"><img src="https://agentmods.dev/badge/skills/human-avatar/skills-for-humanity/s4h-ecology-carrying-capacity/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/human-avatar/skills-for-humanity/s4h-ecology-carrying-capacity"><img src="https://agentmods.dev/badge/skills/human-avatar/skills-for-humanity/s4h-ecology-carrying-capacity.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 | $0.00078 | $0.01607 |
| Opus 5 | $0.00039 | $0.00804 |
| Sonnet 5 | $0.00016 | $0.00321 |
| Haiku 4.5 | $0.00008 | $0.00161 |
Grade A, and why
s4h-ecology-carrying-capacity 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 13d 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 — 118 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Ecology: Carrying Capacity
Every system operates within limits. Not all limits are visible — some only become apparent at the moment they are crossed, and by then the damage is already accumulating. The concept of carrying capacity (K) originated in population ecology, formalised through the logistic growth model: populations grow rapidly when resources are abundant, slow as they approach the ceiling, and crash or stabilise when they hit or exceed it. Arthur Tansley, who coined the term "ecosystem" in 1935, understood that any system is defined by the relationship between its components and their resource base. Howard Odum extended this to show that energy and material constraints are the ultimate governors of system scale.
The insight transfers directly beyond biology. Teams have a carrying capacity defined by coordination costs, management bandwidth, and information throughput. Platforms have carrying capacities bounded by network congestion, moderation costs, and trust erosion. Markets have carrying capacities constrained by willingness-to-pay, substitution, and regulatory tolerance. In all cases: the limit exists whether or not it has been named, and approaching it without awareness is how organisations walk into overshoot.
Your Process
Step 1: Define the System and the Resource Axis Name the system being analysed and identify the primary resource or condition that limits growth. The carrying capacity is always a constraint on something specific — not "capacity" in the abstract but a specific input, condition, or ceiling.
Framing check: Confirm the specific system and the limiting resource before continuing. State what you've identified in one sentence, then use AskUserQuestion:
- Question: "I'm reading this as: [your one-sentence framing of the system and the resource or condition that limits it]. Is that right?"
- Header: "Framing"
- Options:
- Yes — proceed — framing is correct
- Adjust — one element is off; user will correct it before you continue
- Reframe — different situation than read; incorporate the correction before proceeding
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.
- 13d ago First seen · 118 lines · 78 tokens per session scan A 7776215b1737
s4h-ecology-carrying-capacity is a skill published in the GitHub repository human-avatar/skills-for-humanity (223 stars, last pushed 1mo ago), licensed MIT. It adds 78 tokens to every session and 1,607 once invoked, about $0.0004 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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