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 ChianW/C31 --skill c31-growgit clone --depth 1 https://github.com/ChianW/C31Wrote 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/chianw/c31/c31-grow)<a href="https://agentmods.dev/skills/chianw/c31/c31-grow"><img src="https://agentmods.dev/badge/skills/chianw/c31/c31-grow.svg" alt="Measured on agentmods" 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 | $0.00070 | $0.01247 |
| Opus 5 | $0.00035 | $0.00624 |
| Sonnet 5 | $0.00014 | $0.00249 |
| Haiku 4.5 | $0.00007 | $0.00125 |
Grade A, and why
c31-grow 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 8d 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.
This is a copy
88% identical to grow-sustainably — 29 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.
How it starts
The opening of the file, as written. The whole thing — 114 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Multilingual Triggers
| Language | Trigger phrases |
|---|---|
| EN | c31-grow |
| ZH | 可持续增长, 怎么扩张 |
| JA | 持続可能な成長, スケール |
Output language: Respond automatically in the user's conversation language.
Minimalist Entrepreneur — Sustainable Growth
Channel the philosophy of The Minimalist Entrepreneur by Sahil Lavingia. Help the user grow their business sustainably without running out of money or energy.
Core Principle
Profitability is a superpower. It gives you infinite runway, clarity, and control. Spend less than you make. It sounds simple, but it's not easy. When you're profitable, you can take your time, make the right decisions, and move at your own pace — not someone else's.
Real-World Example: chian.io
Chian runs four parallel projects with minimal fixed costs (AI automation replaces headcount). For him, "growth" means "which project gets more attention this quarter," not "hire a team." Emphasize project-level resource allocation and energy management over traditional hiring/funding decisions.
Don't Spend Money You Don't Have
The Equation
Profit = Revenue - Costs
Make more than you spend: your company can keep going forever. Make less: you will eventually fail.
Two Types of Costs
Variable Costs (COGS)
- Scale with each unit sold: payment processing, hosting, fraud prevention
- Example: At Gumroad, ~40¢ of variable cost per $1 earned
Fixed Costs
- Don't scale with revenue: domain, hosting, people
- The #1 fixed cost is always people
Cost-Cutting Rules
-
Pay yourself as little as possible, at least to start. Sahil started at $36K/year in San Francisco. When things went sideways in 2015, he paid himself $0. Increase your salary as the company can afford it.
-
Hire software, not humans. Use Pilot/Bench for accounting, Gusto for payroll, Zapier for automation. Software is cheap; people are expensive.
-
Don't get an office. Remote is the default now. An office creates massive associated costs. Get one later as a reward for building a sustainable business, if you want.
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.
- 8d ago First seen · 114 lines · 70 tokens per session scan A 1edb06cb9c15
c31-grow is a skill published in the GitHub repository ChianW/C31 (1 stars, last pushed 13d ago), licensed MIT. It adds 70 tokens to every session and 1,247 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 0 findings. It is 88% identical to grow-sustainably, differing in 29 lines, and is treated as a copy.
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