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 christopherlouet/claude-base --skill growth-crogit clone --depth 1 https://github.com/christopherlouet/claude-baseWrote 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/christopherlouet/claude-base/growth-cro)<a href="https://agentmods.dev/skills/christopherlouet/claude-base/growth-cro"><img src="https://agentmods.dev/badge/skills/christopherlouet/claude-base/growth-cro/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/christopherlouet/claude-base/growth-cro"><img src="https://agentmods.dev/badge/skills/christopherlouet/claude-base/growth-cro.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 | $0.00050 | $0.01896 |
| Opus 5.5 | $0.00020 | $0.00758 |
| Sonnet 5.5 | $0.00010 | $0.00379 |
| Haiku 4.5 | $0.00005 | $0.00190 |
Grade A, and why
growth-cro 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 27d 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 — 228 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Conversion Rate Optimization (CRO)
Goal
Identify and fix friction points in user journeys to maximize the conversion rate.
CRO Domains
┌──────────────────────────────────────────────────────────────────┐
│ CRO FRAMEWORK │
├──────────────────────────────────────────────────────────────────┤
│ │
│ PAGE CRO Optimize marketing/landing pages │
│ ═════════ │
│ │
│ SIGNUP FLOW CRO Improve signup and account creation │
│ ══════════════ │
│ │
│ ONBOARDING CRO Reduce time-to-value post-signup │
│ ═════════════ │
│ │
│ FORM CRO Optimize capture forms │
│ ════════ │
│ │
│ POPUP CRO Improve popups, modals, overlays │
│ ═════════ │
│ │
│ PAYWALL CRO Optimize paywalls and upsells │
│ ═══════════ │
│ │
└──────────────────────────────────────────────────────────────────┘
1. Page CRO
Landing page checklist
| # | Element | Best practices |
|---|---|---|
| 1 | Headline | Clear benefit in < 10 words, no jargon |
| 2 | Sub-headline | Explain the "how" in 1 sentence |
| 3 | Primary CTA | Specific action, visible above-the-fold |
| 4 | Social proof | Testimonials, customer logos, numbers |
| 5 | Objections | FAQ or sections answering doubts |
| 6 | Urgency/Scarcity | Timer, limited spots (if authentic) |
| 7 | Hero visual | Product screenshot or demo video |
| 8 | Navigation | Minimal (no full menu on landing) |
What ships with it
1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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.
- 27d ago Changed · -2 lines 46131f3f3889
- 28d ago Changed · -6 lines 9e1035731964
- 1mo ago First seen · 236 lines · 50 tokens per session scan A e8222626b057
growth-cro is a skill published in the GitHub repository christopherlouet/claude-base (5 stars, last pushed 7d ago), licensed MIT. It adds 50 tokens to every session and 1,896 once invoked, about $0.0002 per session on Opus 5.5. 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 2026-09-03.
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