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Expert in building products that wrap AI APIs (OpenAI, Anthropic, 📦 Ships with agentic-awesome-skills
</> SKILL.md
ai-wrapper-product.SKILL.md
---
name : ai-wrapper-product
description : Expert in building products that wrap AI APIs (OpenAI, Anthropic,
etc. ) into focused tools people will pay for. Not just "ChatGPT but
different" - products that solve specific problems with AI.
risk : unknown
source : vibeship-spawner-skills (Apache 2.0)
date_added : 2026-02-27
---
# AI Wrapper Product
Expert in building products that wrap AI APIs (OpenAI, Anthropic, etc.) into
focused tools people will pay for. Not just "ChatGPT but different" - products
that solve specific problems with AI. Covers prompt engineering for products,
cost management, rate limiting, and building defensible AI businesses.
**Role**: AI Product Architect
You know AI wrappers get a bad rap, but the good ones solve real problems.
You build products where AI is the engine, not the gimmick. You understand
prompt engineering is product development. You balance costs with user
experience. You create AI products people actually pay for and use daily.
### Expertise
- AI product strategy
- Prompt engineering
- Cost optimization
- Model selection
Flowy AI Flows that just work. Hand-picked Claude Code plugins that fire the right skill as you prompt.
- AI UX
- Usage metering
## Capabilities
- AI product architecture
- Prompt engineering for products
- API cost management
- AI usage metering
- Model selection
- AI UX patterns
- Output quality control
- AI product differentiation
## Patterns
### AI Product Architecture
Building products around AI APIs
**When to use**: When designing an AI-powered product
## AI Product Architecture
### The Wrapper Stack
```
User Input
↓
Input Validation + Sanitization
↓
Prompt Template + Context
↓
AI API (OpenAI/Anthropic/etc.)
↓
Output Parsing + Validation
↓
User-Friendly Response
```
### Basic Implementation
```javascript
import Anthropic from '@anthropic-ai/sdk';
const anthropic = new Anthropic();
async function generateContent(userInput, context) {
// 1. Validate input
if (!userInput || userInput.length > 5000) {
throw new Error('Invalid input');
}
// 2. Build prompt
const systemPrompt = `You are a ${context.role}.
Always respond in ${context.format}.
Tone: ${context.tone}`;
// 3. Call API
const response = await anthropic.messages.create({
model: 'claude-3-haiku-20240307',
max_tokens: 1000,
system: systemPrompt,
messages: [{
role: 'user',
content: userInput
}]
});
// 4. Parse and validate output
const output = response.content[0].text;
return parseOutput(output);
}
```
### Model Selection
| Model | Cost | Speed | Quality | Use Case |
|-------|------|-------|---------|----------|
| GPT-4o | $$$ | Fast | Best | Complex tasks |
| GPT-4o-mini | $ | Fastest | Good | Most tasks |
| Claude 3.5 Sonnet | $$ | Fast | Excellent | Balanced |
| Claude 3 Haiku | $ | Fastest | Good | High volume |
### Prompt Engineering for Products
Production-grade prompt design
**When to use**: When building AI product prompts
## Prompt Engineering for Products
### Prompt Template Pattern
```javascript
const promptTemplates = {
emailWriter: {
system: `You are an expert email writer.
Write professional, concise emails.
Match the requested tone.
Never include placeholder text.`,
user: (input) => `Write an email:
Purpose: ${input.purpose}
Recipient: ${input.recipient}
Tone: ${input.tone}
Key points: ${input.points.join(', ')}
Length: ${input.length} sentences`,
},
};
```
### Output Control
```javascript
// Force structured output
const systemPrompt = `
Always respond with valid JSON in this format:
{
"title": "string",
"content": "string",
"suggestions": ["string"]
}
Never include any text outside the JSON.
`;
// Parse with fallback
function parseAIOutput(text) {
try {
return JSON.parse(text);
} catch {
// Fallback: extract JSON from response
const match = text.match(/\{[\s\S]*\}/);
if (match) return JSON.parse(match[0]);
throw new Error('Invalid AI output');
}
}
```
### Quality Control
| Technique | Purpose |
|-----------|---------|
| Examples in prompt | Guide output style |
| Output format spec | Consistent structure |
| Validation | Catch malformed responses |
| Retry logic | Handle failures |
| Fallback models | Reliability |
### Cost Management
Controlling AI API costs
**When to use**: When building profitable AI products
## AI Cost Management
### Token Economics
```javascript
// Track usage
async function callWithCostTracking(userId, prompt) {
const response = await anthropic.messages.create({...});
// Log usage
await db.usage.create({
userId,
inputTokens: response.usage.input_tokens,
outputTokens: response.usage.output_tokens,
cost: calculateCost(response.usage),
model: 'claude-3-haiku',
});
return response;
}
function calculateCost(usage) {
const rates = {
'claude-3-haiku': { input: 0.25, output: 1.25 }, // per 1M tokens
};
const rate = rates['claude-3-haiku'];
return (usage.input_tokens * rate.input +
usage.output_tokens * rate.output) / 1_000_000;
}
```
### Cost Reduction Strategies
| Strategy | Savings |
|----------|---------|
| Use cheaper models | 10-50x |
| Limit output tokens | Variable |
| Cache common queries | High |
| Batch similar requests | Medium |
| Truncate input | Variable |
### Usage Limits
```javascript
async function checkUsageLimits(userId) {
const usage = await db.usage.sum({
where: {
userId,
createdAt: { gte: startOfMonth() }
}
});
const limits = await getUserLimits(userId);
if (usage.cost >= limits.monthlyCost) {
throw new Error('Monthly limit reached');
}
return true;
}
```
### AI Product Differentiation
Standing out from other AI wrappers
**When to use**: When planning AI product strategy
## AI Product Differentiation
### What Makes AI Products Defensible
| Moat | Example |
|------|---------|
| Workflow integration | Email inside Gmail |
| Domain expertise | Legal AI with law training |
| Data/context | Company-specific knowledge |
| UX excellence | Perfectly designed for task |
| Distribution | Built-in audience |
### Differentiation Strategies
```
1. Vertical Focus
Generic: "AI writing assistant"
Specific: "AI for Amazon product descriptions"
2. Workflow Integration
Standalone: Web app
Integrated: Chrome extension, Slack bot
3. Domain Training
Generic: Uses raw GPT
Specialized: Fine-tuned or RAG-enhanced
4. Output Quality
Basic: Raw AI output
Polished: Post-processing, formatting, validation
```
### Avoid "Thin Wrappers"
| Thin Wrapper | Real Product |
|--------------|--------------|
| ChatGPT with custom prompt | Domain-specific workflow tool |
| API passthrough | Processed, validated outputs |
| Single feature | Complete solution |
| No unique value | Solves specific pain point |
## Sharp Edges
### AI API costs spiral out of control
Severity: HIGH
Situation: Monthly AI bill is higher than revenue
Symptoms:
- Surprise API bills
- Costs > revenue
- Rapid usage spikes
- No visibility into costs
Why this breaks:
No usage tracking.
No user limits.
Using expensive models.
Abuse or bugs.
Recommended fix:
## Controlling AI Costs
### Set Hard Limits
```javascript
// Per-user limits
const LIMITS = {
free: { dailyCalls: 10, monthlyTokens: 50000 },
pro: { dailyCalls: 100, monthlyTokens: 500000 },
};
async function checkLimits(userId) {
const plan = await getUserPlan(userId);
const usage = await getDailyUsage(userId);
if (usage.calls >= LIMITS[plan].dailyCalls) {
throw new Error('Daily limit reached');
}
}
```
### Provider-Level Limits
```
OpenAI: Set usage limits in dashboard
Anthropic: Set spend limits
Add alerts at 50%, 80%, 100%
```
### Cost Monitoring
```javascript
// Alert on anomalies
async function checkCostAnomaly() {
const todayCost = await getTodayCost();
const avgCost = await getAverageDailyCost(30);
if (todayCost > avgCost * 3) {
await alertAdmin('Cost anomaly detected');
}
}
```
### Emergency Shutoff
```javascript
// Kill switch
const MAX_DAILY_SPEND = 100; // $100
async function canMakeAPICall() {
const todaySpend = await getTodaySpend();
if (todaySpend >= MAX_DAILY_SPEND) {
await disableAPI();
await alertAdmin('Emergency shutoff triggered');
return false;
}
return true;
}
```
### App breaks when hitting API rate limits
Severity: HIGH
Situation: API calls fail with 429 errors
Symptoms:
- 429 Too Many Requests errors
- Requests failing in bursts
- Users seeing errors
- Inconsistent behavior
Why this breaks:
No retry logic.
Not queuing requests.
Burst traffic not handled.
No backoff strategy.
Recommended fix:
## Handling Rate Limits
### Retry with Exponential Backoff
```javascript
async function callWithRetry(fn, maxRetries = 3) {
for (let i = 0; i < maxRetries; i++) {
try {
return await fn();
} catch (err) {
if (err.status === 429 && i < maxRetries - 1) {
const delay = Math.pow(2, i) * 1000; // 1s, 2s, 4s
await sleep(delay);
continue;
}
throw err;
}
}
}
```
### Request Queue
```javascript
import PQueue from 'p-queue';
// Limit concurrent requests
const queue = new PQueue({
concurrency: 5,
interval: 1000,
intervalCap: 10, // Max 10 per second
});
async function callAPI(prompt) {
return queue.add(() => anthropic.messages.create({...}));
}
```
### User-Facing Handling
```javascript
try {
const result = await callWithRetry(generateContent);
return result;
} catch (err) {
if (err.status === 429) {
return {
error: true,
message: 'High demand - please try again in a moment',
retryAfter: 30
};
}
throw err;
}
```
### AI gives wrong or made-up information
Severity: HIGH
Situation: Users complain about incorrect outputs
Symptoms:
- Users report wrong information
- Made-up facts in outputs
- Outdated information
- Trust issues
Why this breaks:
No output validation.
Trusting AI blindly.
No fact-checking.
Wrong use case for AI.
Recommended fix:
## Handling Hallucinations
### Output Validation
```javascript
function validateOutput(output, schema) {
// Check required fields
if (!output.title || !output.content) {
throw new Error('Missing required fields');
}
// Check reasonable length
if (output.content.length < 50 || output.content.length > 5000) {
throw new Error('Content length out of range');
}
// Check for placeholder text
const placeholders = ['[INSERT', 'PLACEHOLDER', 'YOUR NAME HERE'];
if (placeholders.some(p => output.content.includes(p))) {
throw new Error('Output contains placeholders');
}
return true;
}
```
### Domain-Specific Validation
```javascript
// For factual content
async function validateFacts(output) {
// Check dates are reasonable
const dates = extractDates(output);
for (const date of dates) {
if (date > new Date() || date < new Date('1900-01-01')) {
return { valid: false, reason: 'Suspicious date' };
}
}
// Check numbers are reasonable
// ...
}
```
### Use Cases to Avoid
| Risky | Safer Alternative |
|-------|-------------------|
| Medical advice | Summarize, not diagnose |
| Legal advice | Draft, not advise |
| Current events | Use with data sources |
| Precise calculations | Validate or use code |
### User Expectations
- Disclaimer for generated content
- "AI-generated" labels
- Edit capability for users
- Feedback mechanism
### AI responses too slow for good UX
Severity: MEDIUM
Situation: Users complain about slow responses
Symptoms:
- Long wait times
- Users abandoning
- Timeout errors
- Poor perceived performance
Why this breaks:
Large prompts.
Expensive models.
No streaming.
No caching.
Recommended fix:
## Improving AI Latency
### Streaming Responses
```javascript
// Stream to user as AI generates
async function* streamResponse(prompt) {
const stream = await anthropic.messages.stream({
model: 'claude-3-haiku-20240307',
max_tokens: 1000,
messages: [{ role: 'user', content: prompt }]
});
for await (const event of stream) {
if (event.type === 'content_block_delta') {
yield event.delta.text;
}
}
}
// Frontend
const response = await fetch('/api/generate', { method: 'POST' });
const reader = response.body.getReader();
while (true) {
const { done, value } = await reader.read();
if (done) break;
appendToOutput(new TextDecoder().decode(value));
}
```
### Caching
```javascript
async function generateWithCache(prompt) {
const cacheKey = hashPrompt(prompt);
const cached = await cache.get(cacheKey);
if (cached) return cached;
const result = await generateContent(prompt);
await cache.set(cacheKey, result, { ttl: 3600 });
return result;
}
```
### Use Faster Models
| Model | Typical Latency |
|-------|-----------------|
| GPT-4 | 5-15s |
| GPT-4o-mini | 1-3s |
| Claude 3 Haiku | 1-3s |
| Claude 3.5 Sonnet | 2-5s |
## Validation Checks
### AI API Key Exposed
Severity: HIGH
Message: AI API key may be exposed - security risk!
Fix action: Move API calls to backend, use environment variables
### No AI Usage Tracking
Severity: HIGH
Message: Not tracking AI usage - cost control issue.
Fix action: Log tokens and costs for every API call
### No AI Error Handling
Severity: HIGH
Message: AI errors not handled gracefully.
Fix action: Add try/catch, retry logic, and user-friendly error messages
### No AI Output Validation
Severity: MEDIUM
Message: Not validating AI outputs.
Fix action: Add output parsing, validation, and error handling
### No Response Streaming
Severity: LOW
Message: Not using streaming - could improve UX.
Fix action: Implement streaming for better perceived performance
## Collaboration
### Delegation Triggers
- prompt engineering|advanced LLM|fine-tuning -> llm-architect (Advanced AI patterns)
- SaaS|pricing|launch|business -> micro-saas-launcher (AI product business)
- frontend|UI|react -> frontend (AI product interface)
- backend|API|database -> backend (AI product backend)
- browser extension -> browser-extension-builder (AI browser extension)
- telegram bot -> telegram-bot-builder (AI telegram bot)
### AI Writing Tool
Skills: ai-wrapper-product, frontend, micro-saas-launcher
Workflow:
```
1. Define specific writing use case
2. Design prompt templates
3. Build UI with streaming
4. Add usage tracking and limits
5. Implement payments
6. Launch and iterate
```
### AI Browser Extension
Skills: ai-wrapper-product, browser-extension-builder
Workflow:
```
1. Define AI-powered feature
2. Build extension structure
3. Integrate AI API via backend
4. Add usage limits
5. Publish to Chrome Store
```
### AI Telegram Bot
Skills: ai-wrapper-product, telegram-bot-builder
Workflow:
```
1. Define bot personality/purpose
2. Build Telegram bot
3. Integrate AI for responses
4. Add monetization
5. Launch and grow
```
## Related Skills
Works well with: `llm-architect`, `micro-saas-launcher`, `frontend`, `backend`
## When to Use
- User mentions or implies: AI wrapper
- User mentions or implies: GPT product
- User mentions or implies: AI tool
- User mentions or implies: wrap AI
- User mentions or implies: AI SaaS
- User mentions or implies: Claude API product
## Limitations
- Use this skill only when the task clearly matches the scope described above.
- Do not treat the output as a substitute for environment-specific validation, testing, or expert review.
- Stop and ask for clarification if required inputs, permissions, safety boundaries, or success criteria are missing.
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