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@respan/instrumentation-codex-sdk

v1.0.0

Published

Respan instrumentation plugin for the OpenAI Codex SDK

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Readme

Respan Codex SDK Instrumentation

Respan instrumentation plugin for the OpenAI Codex TypeScript SDK.

import { Respan } from "@respan/respan";
import { CodexSDKInstrumentor } from "@respan/instrumentation-codex-sdk";

const respan = new Respan({
  apiKey: process.env.RESPAN_API_KEY,
  instrumentations: [new CodexSDKInstrumentor()],
});

await respan.initialize();

The plugin patches Thread.run() and Thread.runStreamed() from @openai/codex-sdk, converts Codex turn events into Respan-compatible OTEL spans, and injects them into the active Respan tracing pipeline.

Captured turn features include:

  • buffered and streamed turns
  • final agent messages
  • reasoning summaries
  • command execution
  • MCP tool calls
  • web search events
  • file changes
  • todo lists
  • structured output usage
  • failed turns and stream errors

SDK-specific Codex event fields stay inside this package. Shared GenAI and Traceloop attributes are imported from @traceloop/ai-semantic-conventions, and Respan-owned attributes are imported from @respan/respan-sdk.