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develop-ai-functions-example Develop examples for AI SDK functions. Use when creating, running, or modifying examples under examples/ai-functions/src to validate provider support, demonstrate features, or create test fixtures.
npx skills add vercel/ai --skill develop-ai-functions-example artificial-intelligence javascript language-model llm openai react
AI Functions Examples
The examples/ai-functions/ directory contains scripts for validating, testing, and iterating on AI SDK functions across providers.
Example Categories
Examples are organized by AI SDK function in examples/ai-functions/src/:
Directory Purpose generate-text/Non-streaming text generation with generateText() stream-text/Streaming text generation with streamText() generate-object/
Structured output generation with generateObject()
stream-object/Streaming structured output with streamObject()
agent/ToolLoopAgent examples for agentic workflows
embed/Single embedding generation with embed()
embed-many/Batch embedding generation with embedMany()
generate-image/Image generation with generateImage()
generate-speech/Text-to-speech with generateSpeech()
transcribe/Audio transcription with transcribe()
rerank/Document reranking with rerank()
middleware/Custom middleware implementations
registry/Provider registry setup and usage
telemetry/OpenTelemetry integration
complex/Multi-component examples (agents, routers)
lib/Shared utilities (not examples)
tools/Reusable tool definitions
File Naming Convention Examples follow the pattern: {provider}-{feature}.ts
Pattern Example Description {provider}.tsopenai.tsBasic provider usage {provider}-{feature}.tsopenai-tool-call.tsSpecific feature {provider}-{sub-provider}.tsamazon-bedrock-anthropic.tsProvider with sub-provider {provider}-{sub-provider}-{feature}.tsgoogle-vertex-anthropic-cache-control.tsSub-provider with feature
Example Structure All examples use the run() wrapper from lib/run.ts which:
Loads environment variables from .env
Provides error handling with detailed API error logging
Basic Template import { providerName } from '@ai-sdk/provider-name';
import { generateText } from 'ai';
import { run } from '../lib/run';
run(async () => {
const result = await generateText({
model: providerName('model-id'),
prompt: 'Your prompt here.',
});
console.log(result.text);
console.log('Token usage:', result.usage);
console.log('Finish reason:', result.finishReason);
});
Streaming Template import { providerName } from '@ai-sdk/provider-name';
import { streamText } from 'ai';
import { printFullStream } from '../lib/print-full-stream';
import { run } from '../lib/run';
run(async () => {
const result = streamText({
model: providerName('model-id'),
prompt: 'Your prompt here.',
});
await printFullStream({ result });
});
Tool Calling Template import { providerName } from '@ai-sdk/provider-name';
import { generateText, tool } from 'ai';
import { z } from 'zod';
import { run } from '../lib/run';
run(async () => {
const result = await generateText({
model: providerName('model-id'),
tools: {
myTool: tool({
description: 'Tool description',
inputSchema: z.object({
param: z.string().describe('Parameter description'),
}),
execute: async ({ param }) => {
return { result: `Processed: ${param}` };
},
}),
},
prompt: 'Use the tool to...',
});
console.log(JSON.stringify(result, null, 2));
});
Structured Output Template import { providerName } from '@ai-sdk/provider-name';
import { generateObject } from 'ai';
import { z } from 'zod';
import { run } from '../lib/run';
run(async () => {
const result = await generateObject({
model: providerName('model-id'),
schema: z.object({
name: z.string(),
items: z.array(z.string()),
}),
prompt: 'Generate a...',
});
console.log(JSON.stringify(result.object, null, 2));
console.log('Token usage:', result.usage);
});
Running Examples From the examples/ai-functions directory:
pnpm tsx src/generate-text/openai.ts
pnpm tsx src/stream-text/openai-tool-call.ts
pnpm tsx src/agent/openai-generate.ts
When to Write Examples
Adding a new provider : Create basic examples for each supported API (generateText, streamText, generateObject, etc.)
Implementing a new feature : Demonstrate the feature with at least one provider example
Reproducing a bug : Create an example that shows the issue for debugging
Adding provider-specific options : Show how to use providerOptions for provider-specific settings
Creating test fixtures : Use examples to generate API response fixtures (see capture-api-response-test-fixture skill)
Utility Helpers The lib/ directory contains shared utilities:
File Purpose run.tsError-handling wrapper with .env loading print.tsClean object printing (removes undefined values) print-full-stream.tsColored streaming output for tool calls, reasoning, text save-raw-chunks.tsSave streaming chunks for test fixtures present-image.tsDisplay images in terminal save-audio.tsSave audio files to disk
Using print utilities import { print } from '../lib/print';
// Pretty print objects without undefined values
print('Result:', result);
print('Usage:', result.usage, { depth: 2 });
Using printFullStream import { printFullStream } from '../lib/print-full-stream';
const result = streamText({ ... });
await printFullStream({ result }); // Colored output for text, tool calls, reasoning
Reusable Tools The tools/ directory contains reusable tool definitions:
import { weatherTool } from '../tools/weather-tool';
const result = await generateText({
model: openai('gpt-4o'),
tools: { weather: weatherTool },
prompt: 'What is the weather in San Francisco?',
});
Best Practices
Keep examples focused : Each example should demonstrate one feature or use case
Use descriptive prompts : Make it clear what the example is testing
Handle errors gracefully : The run() wrapper handles this automatically
Use realistic model IDs : Use actual model IDs that work with the provider
Add comments for complex logic : Explain non-obvious code patterns
Reuse tools when appropriate : Use weatherTool or create new reusable tools in tools/
Create or update AgentSkills. Use when designing, structuring, or packaging skills with scripts, references, and assets.
Create or update AgentSkills. Use when designing, structuring, or packaging skills with scripts, references, and assets.
Set up and use 1Password CLI (op). Use when installing the CLI, enabling desktop app integration, signing in (single or multi-account), or reading/injecting/running secrets via op.
CLI to manage emails via IMAP/SMTP. Use `himalaya` to list, read, write, reply, forward, search, and organize emails from the terminal. Supports multiple accounts and message composition with MML (MIME Meta Language).
Create or update AgentSkills. Use when designing, structuring, or packaging skills with scripts, references, and assets.
Create or update AgentSkills. Use when designing, structuring, or packaging skills with scripts, references, and assets.
Set up and use 1Password CLI (op). Use when installing the CLI, enabling desktop app integration, signing in (single or multi-account), or reading/injecting/running secrets via op.
CLI to manage emails via IMAP/SMTP. Use `himalaya` to list, read, write, reply, forward, search, and organize emails from the terminal. Supports multiple accounts and message composition with MML (MIME Meta Language).