feat(arize): add Browserbase × Arize AX integration - #86
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Use Browserbase as a load_page tool for a tool-calling agent, traced end to end with Arize AX via OpenTelemetry + OpenInference. The model calls the Browserbase tool to browse a page and answer; the run is exported to AX as a CHAIN → LLM → TOOL trace with tokens and cost. - src/agent.ts: tool-calling agent with manual CHAIN/TOOL spans - src/instrumentation.ts: Arize AX / OTel setup + OpenAI auto-instrumentation - src/register-prompt.ts: optional — publish the load_page tool to the AX Prompt Hub via @arizeai/ax-client Verified end to end against live Arize AX, Browserbase, and OpenAI.
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Adds a Browserbase × Arize AX integration example under examples/integrations/arize/.
Use Browserbase as a load_page tool for a tool-calling agent, traced end to end with Arize AX via OpenTelemetry + OpenInference. The model calls the Browserbase tool to browse a page and answer; the run is exported to AX as a CHAIN → LLM → TOOL trace with tokens and cost.
This makes Browserbase a tool an agent can call.
Files
Verification — verified end to end against live Arize AX, Browserbase, and OpenAI (gpt-5.4): correct CHAIN → LLM → TOOL trace on the happy path, ERROR-marked spans on the failure path, and idempotent prompt registration.
Type of Change
Note
Low Risk
Additive documentation and example code only; no changes to shared packages or production services. Demo uses external API keys and sends traces to Arize when configured.
Overview
Adds a new Arize AX example under examples/integrations/arize/ and lists it in the root monorepo README.
The sample is a Node/TypeScript tool-calling agent that exposes Browserbase Fetch API as a load_page tool (markdown page content, no full browser session). An OpenAI loop answers user prompts (CLI or default question) by calling that tool when needed.
Observability is wired via OpenTelemetry + OpenInference: instrumentation.ts exports OTLP traces to Arize (https://otlp.arize.com/v1/traces) with space/API headers, auto-instruments OpenAI for LLM spans, and agent.ts adds manual CHAIN / TOOL spans around the agent run and each fetch. Spans are flushed on shutdown via provider.shutdown().
Also included: .env.example, integration README, package.json / lockfile, and tsconfig.json for npm start / npm run build.
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