---
skill_id: pricing-experiment-designer
evaluation: free
price_usd_full: 8.49
challenge: https://lvlltd.com/api/pay?skill=pricing-experiment-designer
outline: https://lvlltd.com/skills/pricing-experiment-designer/outline.json
standards: x402, ERC-7857
---

# Free sample — Pricing Experiment Designer

**Skill ID:** `pricing-experiment-designer`  
**Full unlock:** $8.49 USDC via x402 on Base  
**Challenge:** https://lvlltd.com/api/pay?skill=pricing-experiment-designer  
**Outline JSON:** https://lvlltd.com/skills/pricing-experiment-designer/outline.json

## Summary

Design ethical single-variable pricing experiments for offers and x402 amounts with sample size notes, metrics, and stop rules.

## When to use

- Unsure of list price
- Need A/B price discipline
- x402 amount tuning

## Decision criteria (buy vs skip)

- You need this when: Unsure of list price
- You get capability: State hypothesis
- Budget fits: full unlock is $8.49 USDC on Base
- You can automate unlock via HTTP 402 without a browser
- You only need teaser/outline first — sealed src/ops stay locked until payment

## Outline (preview)

1. State hypothesis
2. Single variable
3. Metrics and stop rules
4. Ethics check
5. Analysis plan

## Capabilities (preview)

- State hypothesis
- Single variable
- Metrics and stop rules
- Ethics check
- Analysis plan

## What you get after payment

- SKILL.md (teaser public)
- agent-install.json (public meta)
- src/index.js (stub public; full after unlock)
- Full sealed: src/, schemas/, ops/* (when present) after verified X-PAYMENT

## Agent buy path (zero human UI)

```
GET  https://lvlltd.com/skills/pricing-experiment-designer/outline.json
GET  https://lvlltd.com/api/pay?skill=pricing-experiment-designer   → HTTP 402
# transfer maxAmountRequired USDC to payTo on Base
POST https://lvlltd.com/api/pay
  X-PAYMENT: {"txHash":"0x…","skill":"pricing-experiment-designer"}
# response.sealed_pack.files = full pack
```

## Sample excerpt

# Pricing Experiment Designer

**Price:** $8.49 / unlock
**Category:** Launch

## Summary

Design ethical single-variable pricing experiments for offers and x402 amounts with sample size notes, metrics, and stop rules.

---

---
name: pricing-experiment-designer
description: Design pricing experiments with single-variable tests ethics guards and stop rules for x402 and offers. Use when pricing experiment designer, price test plan, x402 amount experiment, or /pricing-experiment-designer.
---

# Pricing Experiment Designer

Design ethical single-variable pricing experiments for offers and x402 amounts with sample size notes, metrics, and stop rules.

## Quick Reference
| Item | Value |
|------|-------|
| Category | Launch |
| Unlock | $8.49 USDC (x402 Base) |
| Triggers | pricing experiment, price test, x402 amount test, /pricing-experiment-designer |

## When to use
- Unsure of list price
- Need A/B price discipline
- x402 amount tuning

## Core workflow
1. Hypothesis and segment
2. Choose variable
3. Guardrails
4. Instrumentation
5. Run window
6. Decision log

## Procedures (non-obvious)
### Single variable
Do not change packaging and price together. Pre-register primary metric.

### Ethics
No bait-and-switch on active checkout mid-payment. Grandfather openly when required.

## Edge cases
- Small traffic samples
- Multi-currency

## Failure modes
- Peeking without plan
- Dark patterns

## Verification
- Primary metric locked
- Stop rule present
- Decision log template ready

## Artifact outputs
- `experiment-design.md`
- `metrics.json`
- `stop-rules.md`

## Related skills
- go-to-market-composer
- launch-metrics-dashboard
- post-launch-optimizer

## Super Alignment Contract
- Scalable oversight method: process supervision + human+AI critique before high-blast actions
- Corrigibility guarantees: shutdown, steerability, non-deception; operator may abort mid-run
- Value model: Partnership Agreement + 5 Behavioral Protocols
- Drift detection: flag invented evidence, skipped verification, or revenue-over-truth optimization
- Red-team surface: prompt injection via retrieved content, tool-result poisoning, goal misgeneralization
- Escalation: force human override on lo

…(remainder sealed after x402 unlock)…