Eve Instrumentor

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import { Respan } from "@respan/respan";
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import { EveInstrumentor } from "@respan/instrumentation-eve";
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const respan = new Respan({
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  instrumentations: [new EveInstrumentor()],
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});
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await respan.initialize();

Install

$
npm install @respan/respan @respan/instrumentation-eve eve@0.26.1 ai@7.0.26

The initial supported versions are Eve 0.26.1, AI SDK 7.0.26, and Node.js 24 or newer.

Configure Eve

Create agent/instrumentation.ts and initialize Respan at module scope:

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import { Respan } from "@respan/respan";
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import {
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  EveInstrumentor,
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  withEveLineage,
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} from "@respan/instrumentation-eve";
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import { defineInstrumentation } from "eve/instrumentation";
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const respan = new Respan({
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  apiKey: process.env.RESPAN_API_KEY,
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  instrumentations: [new EveInstrumentor()],
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});
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await respan.initialize();
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export default withEveLineage(
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  defineInstrumentation({
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    recordInputs: false,
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    recordOutputs: false,
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  }),
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);

Eve owns AI SDK telemetry registration. Do not activate VercelAIInstrumentor or register another @ai-sdk/otel bridge in the same Eve process.

Public API

Content capture

Input and output capture is configured through Eve’s defineInstrumentation, not through EveInstrumentor.

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export default withEveLineage(
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  defineInstrumentation({
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    recordInputs: true,
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    recordOutputs: true,
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  }),
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);

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