Svix — Webhook Delivery Infrastructure
You are an expert in Svix, the enterprise webhook delivery platform. You help developers send reliable webhooks to customers with automatic retries, signature verification, delivery monitoring, endpoint management, and event type filtering — replacing custom webhook infrastructure with a purpose-built service used by companies like Clerk, Resend, and Liveblocks.
Best use case
Svix — Webhook Delivery Infrastructure is best used when you need a repeatable AI agent workflow instead of a one-off prompt.
You are an expert in Svix, the enterprise webhook delivery platform. You help developers send reliable webhooks to customers with automatic retries, signature verification, delivery monitoring, endpoint management, and event type filtering — replacing custom webhook infrastructure with a purpose-built service used by companies like Clerk, Resend, and Liveblocks.
Teams using Svix — Webhook Delivery Infrastructure should expect a more consistent output, faster repeated execution, less prompt rewriting.
When to use this skill
- You want a reusable workflow that can be run more than once with consistent structure.
When not to use this skill
- You only need a quick one-off answer and do not need a reusable workflow.
- You cannot install or maintain the underlying files, dependencies, or repository context.
Installation
Claude Code / Cursor / Codex
Manual Installation
- Download SKILL.md from GitHub
- Place it in
.claude/skills/svix/SKILL.mdinside your project - Restart your AI agent — it will auto-discover the skill
How Svix — Webhook Delivery Infrastructure Compares
| Feature / Agent | Svix — Webhook Delivery Infrastructure | Standard Approach |
|---|---|---|
| Platform Support | Not specified | Limited / Varies |
| Context Awareness | High | Baseline |
| Installation Complexity | Unknown | N/A |
Frequently Asked Questions
What does this skill do?
You are an expert in Svix, the enterprise webhook delivery platform. You help developers send reliable webhooks to customers with automatic retries, signature verification, delivery monitoring, endpoint management, and event type filtering — replacing custom webhook infrastructure with a purpose-built service used by companies like Clerk, Resend, and Liveblocks.
Where can I find the source code?
You can find the source code on GitHub using the link provided at the top of the page.
SKILL.md Source
# Svix — Webhook Delivery Infrastructure
You are an expert in Svix, the enterprise webhook delivery platform. You help developers send reliable webhooks to customers with automatic retries, signature verification, delivery monitoring, endpoint management, and event type filtering — replacing custom webhook infrastructure with a purpose-built service used by companies like Clerk, Resend, and Liveblocks.
## Core Capabilities
### Sending Webhooks
```typescript
import { Svix } from "svix";
const svix = new Svix(process.env.SVIX_API_KEY!);
// Register an application (your customer/tenant)
await svix.application.create({
uid: "customer-42",
name: "Acme Corp",
});
// Send webhook event
await svix.message.create("customer-42", {
eventType: "order.created",
payload: {
id: "ord-123",
total: 99.99,
items: [{ sku: "WIDGET-A", qty: 2 }],
createdAt: new Date().toISOString(),
},
});
// Customer adds their endpoint via your dashboard/API
await svix.endpoint.create("customer-42", {
url: "https://customer-webhook.example.com/webhooks",
filterTypes: ["order.created", "order.shipped", "order.refunded"],
channels: ["orders"],
rateLimit: 100, // Max 100 deliveries/sec to this endpoint
});
// Batch send
await Promise.all(
customers.map(customerId =>
svix.message.create(customerId, {
eventType: "invoice.generated",
payload: { invoiceId: "inv-456", amount: 299.99 },
})
)
);
```
### Webhook Verification (Consumer Side)
```typescript
import { Webhook } from "svix";
// Verify incoming webhooks in your API
app.post("/webhooks", (req, res) => {
const wh = new Webhook(process.env.SVIX_SIGNING_SECRET!);
try {
const payload = wh.verify(req.body, {
"svix-id": req.headers["svix-id"],
"svix-timestamp": req.headers["svix-timestamp"],
"svix-signature": req.headers["svix-signature"],
});
// payload is verified and safe to process
handleWebhookEvent(payload);
res.status(200).json({ received: true });
} catch (err) {
res.status(400).json({ error: "Invalid signature" });
}
});
```
### Consumer Portal
```typescript
// Generate a magic link for customers to manage their endpoints
const dashboard = await svix.authentication.appPortalAccess("customer-42", {});
// dashboard.url → "https://app.svix.com/login#key=..."
// Customer can view delivery logs, manage endpoints, retry failed deliveries
```
## Installation
```bash
npm install svix
```
## Best Practices
1. **Event types** — Define clear event types (`order.created`, `invoice.paid`); customers filter what they receive
2. **Signature verification** — Always verify webhook signatures; Svix uses HMAC-SHA256 with timestamp replay protection
3. **Idempotency** — Include unique event IDs in payload; consumers should handle duplicate deliveries
4. **Retry policy** — Svix auto-retries with exponential backoff (up to 3 days); failed deliveries are logged
5. **Consumer portal** — Give customers the Svix App Portal; self-service endpoint management, delivery logs
6. **Rate limiting** — Set per-endpoint rate limits; protect customer servers from webhook storms
7. **Event catalog** — Document all event types and payload schemas; publish as part of your API docs
8. **Self-hosted** — Svix is open-source; deploy on your own infra for data sovereigntyRelated Skills
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