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 whawkinsiv/solo-founder-skills --skill retentiongit clone --depth 1 https://github.com/whawkinsiv/solo-founder-skillsWrote 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/whawkinsiv/solo-founder-skills/retention)<a href="https://agentmods.dev/skills/whawkinsiv/solo-founder-skills/retention"><img src="https://agentmods.dev/badge/skills/whawkinsiv/solo-founder-skills/retention/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/whawkinsiv/solo-founder-skills/retention"><img src="https://agentmods.dev/badge/skills/whawkinsiv/solo-founder-skills/retention.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 | $0.00065 | $0.02835 |
| Opus 5 | $0.00032 | $0.01418 |
| Sonnet 5 | $0.00013 | $0.00567 |
| Haiku 4.5 | $0.00006 | $0.00283 |
Grade A, and why
retention 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 12d 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 — 339 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Churn Prevention & Retention
A 5% reduction in churn can increase profitability by 25-95%. This skill helps you understand why customers leave, build systems to keep them, and win back the ones you've lost.
Core Principles
- Acquisition gets attention. Retention builds businesses. A 5% reduction in churn can increase profitability by 25-95%.
- Churn is a symptom, not the disease. Every cancellation has a root cause you can address.
- The best time to prevent churn is day 1. The second best time is today.
- Retention is not one thing — it's onboarding + value delivery + relationship + habit formation.
- For a bootstrapped founder, saving one customer is often easier and cheaper than acquiring a new one.
Understanding Your Churn
Calculate Your Churn Rate
Monthly Churn Rate = (Customers lost this month / Customers at start of month) × 100
Example: 5 cancellations / 100 customers = 5% monthly churn
Annual Churn Rate = 1 - (1 - monthly churn rate)^12
Example: 1 - (1 - 0.05)^12 = 46% annual churn (you're replacing half your base every year)
Churn Benchmarks for Bootstrapped SaaS
| Monthly Churn | Annual Churn | Assessment |
|---|---|---|
| < 2% | < 22% | Strong — you have product-market fit |
| 2-5% | 22-46% | Normal for early stage — room to improve |
| 5-8% | 46-63% | Concerning — retention is your #1 priority |
| > 8% | > 63% | Critical — fix this before spending on growth |
Types of Churn
- Voluntary churn — Customer actively cancels. They made a decision. You can learn why and sometimes prevent it.
- Involuntary churn — Payment fails, card expires. Customer didn't choose to leave. Fix with dunning (see payments).
- Downgrade churn — Customer moves to a lower tier or free plan. Still using the product, paying less.
- Logo churn — Customer count. "We lost 5 customers."
- Revenue churn — Dollar amount. "We lost $500 MRR." This matters more.
Finding At-Risk Customers
You don't need complex health scoring software. Track these signals:
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.
- 12d ago First seen · 339 lines · 65 tokens per session scan A 1893f4579f5c
retention is a skill published in the GitHub repository whawkinsiv/solo-founder-skills (243 stars, last pushed 16d ago), licensed MIT. It adds 65 tokens to every session and 2,835 once invoked, about $0.0003 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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