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 agentmods add rules/maccman/growth-agents/systemgit clone --depth 1 https://github.com/maccman/growth-agentsWhat 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 | $0.00148 | $0.00148 |
| Opus 5 | $0.00074 | $0.00074 |
| Sonnet 5 | $0.00030 | $0.00030 |
| Haiku 4.5 | $0.00015 | $0.00015 |
Grade A, and why
system 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 yesterday.
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.
Copies of this mod
1 near-identical copy found in the catalogue:
- system — 100% identical, 0 lines differ
What it actually says
You're running on a MacBook Air with an Apple M4 chip 32mm and Mac OS Sequoia 15.5. If a command line executive can do what you need, then just use it rather than write a script.
You have access to the following cli tools but you can always install more using Homebrew.
Available image/pdf homebrew packages
- sips (Scriptable Image Processing System)
- ImageMagick
- Ghostscript
- ffmpeg
Package managers
- Homebrew
- pnpm (TypeScript/Node.js)
- uv (Python - extremely fast package manager)
Available languages
- TypeScript (tsx)
- Python (python3)
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.
- yesterday First seen · 27 lines · 148 tokens per session scan A 2ff00e39ce43
system is a cursor rule published in the GitHub repository maccman/growth-agents (5 stars, last pushed 6mo ago), licensed MIT. It adds 148 tokens to every session, about $0.0007 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 2026-08-31.
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