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 saski/arnesto --skill hooked-modelgit clone --depth 1 https://github.com/saski/arnestoWrote 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/saski/arnesto/hooked-model)<a href="https://agentmods.dev/skills/saski/arnesto/hooked-model"><img src="https://agentmods.dev/badge/skills/saski/arnesto/hooked-model/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/saski/arnesto/hooked-model"><img src="https://agentmods.dev/badge/skills/saski/arnesto/hooked-model.svg" alt="Reviewed on agentmods" width="80" 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 | $0.00076 | $0.00537 |
| Opus 5.5 | $0.00030 | $0.00215 |
| Sonnet 5.5 | $0.00015 | $0.00107 |
| Haiku 4.5 | $0.00008 | $0.00054 |
Grade A, and why
hooked-model 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 1mo 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
100% identical to hooked-model — 0 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 — 55 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Domain Context
This skill implements a proven product management framework. The approach combines best practices from industry leaders and is designed for practical application in day-to-day PM work.
Input Requirements
- Context about your product, feature, or problem
- Relevant data, research, or constraints (recommended but optional)
- Clear articulation of what you're trying to achieve
The Hooked Model
What It Is
The Hooked Model is a framework for building products that create unprompted user engagement. The core insight: habit-forming products connect to internal triggers through a repeating cycle of trigger, action, reward, and investment.
When a product becomes a habit, users engage without external prompts. They don't need ads, emails, or notifications to come back. They return because the product has become their automatic response to an internal trigger like boredom, loneliness, uncertainty, or FOMO.
The key shift: Move from asking "How do we get users to open the app?" to asking "What internal trigger do we want to own, and how do we become the automatic response to it?"
When to Use It
Use the Hooked Model when you need to:
- Design features that drive repeat engagement (not just one-time use)
- Reduce dependency on external marketing to bring users back
- Improve retention and decrease churn through habit formation
- Understand why competitor products are so sticky (reverse-engineer their hooks)
- Create ethical engagement that genuinely improves users' lives
- Prioritize which features to build based on habit potential
- Increase customer lifetime value through deeper product integration
When Not to Use It
- The product is inherently infrequent (e.g., buying a house, annual insurance)
- Users should consciously evaluate each decision (e.g., financial trading, medical diagnosis)
- Habit formation would harm users rather than help them
Resources
Books:
- Hooked: How to Build Habit-Forming Products by Nir Eyal
- Indistractable: How to Control Your Attention and Choose Your Life by Nir Eyal
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.
- 1mo ago First seen · 55 lines · 76 tokens per session scan A 7cc3c9fe5f79
hooked-model is a skill published in the GitHub repository saski/arnesto (6 stars, last pushed 4d ago), licensed Unlicense. It adds 76 tokens to every session and 537 once invoked, about $0.0003 per session on Opus 5.5. A static security scan graded it A with 0 findings. It is 100% identical to hooked-model, differing in 0 lines, and is treated as a copy.
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