"use strict"; const {Fragment: _Fragment, jsx: _jsx, jsxs: _jsxs} = arguments[0]; const {useMDXComponents: _provideComponents} = arguments[0]; function _createMdxContent(props) { const _components = { a: "a", code: "code", li: "li", p: "p", pre: "pre", span: "span", ul: "ul", ..._provideComponents(), ...props.components }, {CodeBlock, CodeGroup, Heading, Note, Step, Steps, View} = _components; if (!CodeBlock) _missingMdxReference("CodeBlock", true); if (!CodeGroup) _missingMdxReference("CodeGroup", true); if (!Heading) _missingMdxReference("Heading", true); if (!Note) _missingMdxReference("Note", true); if (!Step) _missingMdxReference("Step", true); if (!Steps) _missingMdxReference("Steps", true); if (!View) _missingMdxReference("View", true); return _jsxs(_Fragment, { children: [_jsxs(_components.p, { children: [_jsx(_components.a, { href: "https://google.github.io/adk-docs/", children: "Google ADK (Agent Development Kit)" }), " is Google’s framework for building AI agents powered by Gemini models. Braintrust traces ADK agent executions, including tool calls and multi-step reasoning."] }), "\n", _jsxs(View, { title: "TypeScript", icon: "https://img.logo.dev/typescriptlang.org?token=pk_BdcHD9e5SCW3j1rnJkNyMQ", id: "typescript", children: [_jsx(Heading, { level: "2", id: "setup-typescript", children: "Setup" }), _jsxs(_components.p, { children: ["Install the Braintrust and ", _jsx(_components.code, { children: "@google/adk" }), " packages, then set your API keys. Requires ", _jsx(_components.code, { children: "@google/adk" }), " v0.6.1 or later."] }), _jsxs(Steps, { children: [_jsx(Step, { title: "Install packages", children: _jsxs(CodeGroup, { children: [_jsx(CodeBlock, { filename: "pnpm", numberOfLines: "1", language: "shellscript", children: _jsx(_components.pre, { className: "shiki shiki-themes github-light github-dark-dimmed", style: { backgroundColor: "#fff", "--shiki-dark-bg": "#22272e", color: "#24292e", "--shiki-dark": "#adbac7" }, language: "shellscript", children: _jsxs(_components.code, { language: "shellscript", numberOfLines: "1", children: [_jsxs(_components.span, { className: "line", children: [_jsx(_components.span, { style: { color: "#6F42C1", "--shiki-dark": "#F69D50" }, children: "pnpm" }), _jsx(_components.span, { style: { color: "#032F62", "--shiki-dark": "#96D0FF" }, children: " add" }), _jsx(_components.span, { style: { color: "#032F62", "--shiki-dark": "#96D0FF" }, children: " braintrust" }), _jsx(_components.span, { 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_jsxs(_components.span, { className: "line", children: [_jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: "GEMINI_API_KEY" }), _jsx(_components.span, { style: { color: "#D73A49", "--shiki-dark": "#F47067" }, children: "=<" }), _jsx(_components.span, { style: { color: "#032F62", "--shiki-dark": "#96D0FF" }, children: "your-gemini-api-key" }), _jsx(_components.span, { style: { color: "#D73A49", "--shiki-dark": "#F47067" }, children: ">" })] }), "\n", _jsx(_components.span, { className: "line" }), "\n", _jsx(_components.span, { className: "line", children: _jsx(_components.span, { style: { color: "#6A737D", "--shiki-dark": "#768390" }, children: "# For organizations on the EU data plane, use https://api-eu.braintrust.dev" }) }), "\n", _jsx(_components.span, { className: "line", children: _jsx(_components.span, { style: { color: "#6A737D", "--shiki-dark": "#768390" }, children: "# For self-hosted deployments, use your data plane URL" }) }), "\n", 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_jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: "," })] }), "\n", _jsxs(_components.span, { className: "line", children: [_jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: " instruction: " }), _jsx(_components.span, { style: { color: "#032F62", "--shiki-dark": "#96D0FF" }, children: "\"You are a helpful assistant that can check weather and time.\"" }), _jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: "," })] }), "\n", _jsx(_components.span, { className: "line", children: _jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: " tools: [getWeatherTool, getCurrentTimeTool]," }) }), "\n", _jsx(_components.span, { className: "line", children: _jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: "});" }) }), "\n", _jsx(_components.span, { className: "line" }), "\n", _jsx(_components.span, { className: "line", children: _jsx(_components.span, { style: { color: "#6A737D", "--shiki-dark": "#768390" }, children: "// Create the runner and a session" }) }), "\n", _jsxs(_components.span, { className: "line", children: [_jsx(_components.span, { style: { color: "#D73A49", "--shiki-dark": "#F47067" }, children: "const" }), _jsx(_components.span, { style: { color: "#005CC5", "--shiki-dark": "#6CB6FF" }, children: " runner" }), _jsx(_components.span, { style: { color: "#D73A49", "--shiki-dark": "#F47067" }, children: " =" }), _jsx(_components.span, { style: { color: "#D73A49", "--shiki-dark": "#F47067" }, children: " new" }), _jsx(_components.span, { style: { color: "#6F42C1", "--shiki-dark": "#DCBDFB" }, children: " InMemoryRunner" }), _jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: "({ agent, appName: " }), _jsx(_components.span, { style: { color: "#032F62", "--shiki-dark": "#96D0FF" }, children: "\"weather_app\"" }), _jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: " });" })] }), "\n", _jsxs(_components.span, { className: "line", children: [_jsx(_components.span, { style: { color: "#D73A49", "--shiki-dark": "#F47067" }, children: "const" }), _jsx(_components.span, { style: { color: "#005CC5", "--shiki-dark": "#6CB6FF" }, children: " userId" }), _jsx(_components.span, { style: { color: "#D73A49", "--shiki-dark": "#F47067" }, children: " =" }), _jsx(_components.span, { style: { color: "#032F62", "--shiki-dark": "#96D0FF" }, children: " \"user123\"" }), _jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: ";" })] }), "\n", _jsxs(_components.span, { className: "line", children: [_jsx(_components.span, { style: { color: "#D73A49", "--shiki-dark": "#F47067" }, children: "const" }), _jsx(_components.span, { style: { color: "#005CC5", "--shiki-dark": "#6CB6FF" }, children: " sessionId" }), _jsx(_components.span, { style: { color: "#D73A49", "--shiki-dark": "#F47067" }, children: " =" }), _jsx(_components.span, { style: { color: "#032F62", "--shiki-dark": "#96D0FF" }, children: " \"session123\"" }), _jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: ";" })] }), "\n", _jsxs(_components.span, { className: "line", children: [_jsx(_components.span, { style: { color: "#D73A49", "--shiki-dark": "#F47067" }, children: "await" }), _jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: " runner.sessionService." }), _jsx(_components.span, { style: { color: "#6F42C1", "--shiki-dark": "#DCBDFB" }, children: "createSession" }), _jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: "({" })] }), "\n", _jsx(_components.span, { className: "line", children: _jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: " appName: runner.appName," }) }), "\n", _jsx(_components.span, { className: "line", children: _jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: " userId," }) }), "\n", _jsx(_components.span, { className: "line", children: _jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: " sessionId," }) }), "\n", _jsx(_components.span, { className: "line", children: _jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: "});" }) }), "\n", _jsx(_components.span, { className: "line" }), "\n", _jsx(_components.span, { className: "line", children: _jsx(_components.span, { style: { color: "#6A737D", "--shiki-dark": "#768390" }, children: "// Run the agent" }) }), "\n", _jsxs(_components.span, { className: "line", children: [_jsx(_components.span, { style: { color: "#D73A49", "--shiki-dark": "#F47067" }, children: "for" }), _jsx(_components.span, { style: { color: "#D73A49", "--shiki-dark": "#F47067" }, children: " await" }), _jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: " (" }), _jsx(_components.span, { style: { color: "#D73A49", "--shiki-dark": "#F47067" }, children: "const" }), _jsx(_components.span, { style: { color: "#005CC5", "--shiki-dark": "#6CB6FF" }, children: " event" }), _jsx(_components.span, { style: { color: "#D73A49", "--shiki-dark": "#F47067" }, children: " of" }), _jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: " runner." }), _jsx(_components.span, { style: { color: "#6F42C1", "--shiki-dark": "#DCBDFB" }, children: "runAsync" }), _jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: "({" })] }), "\n", _jsx(_components.span, { className: "line", children: _jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: " userId," }) }), "\n", _jsx(_components.span, { className: "line", children: _jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: " sessionId," }) }), "\n", _jsx(_components.span, { className: "line", children: _jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: " newMessage: {" }) }), "\n", _jsxs(_components.span, { className: "line", children: [_jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: " role: " }), _jsx(_components.span, { style: { color: "#032F62", "--shiki-dark": "#96D0FF" }, children: "\"user\"" }), _jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: "," })] }), "\n", _jsxs(_components.span, { className: "line", children: [_jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: " parts: [{ text: " }), _jsx(_components.span, { style: { color: "#032F62", "--shiki-dark": "#96D0FF" }, children: "\"What's the weather like in New York?\"" }), _jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: " }]," })] }), "\n", _jsx(_components.span, { className: "line", children: _jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: " }," }) }), "\n", _jsx(_components.span, { className: "line", children: _jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: "})) {" }) }), "\n", _jsxs(_components.span, { className: "line", children: [_jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: " console." }), _jsx(_components.span, { style: { color: "#6F42C1", "--shiki-dark": "#DCBDFB" }, children: "log" }), _jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: "(event);" })] }), "\n", _jsx(_components.span, { className: "line", children: _jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: "}" }) }), "\n"] }) }) }) }) }), _jsxs(Step, { title: "Run with the import hook", children: [_jsx(CodeBlock, { filename: "", numberOfLines: "1", language: "shellscript", children: _jsx(_components.pre, { className: "shiki shiki-themes github-light github-dark-dimmed", style: { backgroundColor: "#fff", "--shiki-dark-bg": "#22272e", color: "#24292e", "--shiki-dark": "#adbac7" }, language: "shellscript", children: _jsxs(_components.code, { language: "shellscript", numberOfLines: "1", children: [_jsxs(_components.span, { className: "line", children: [_jsx(_components.span, { style: { color: "#6F42C1", "--shiki-dark": "#F69D50" }, children: "node" }), _jsx(_components.span, { style: { color: "#005CC5", "--shiki-dark": "#6CB6FF" }, children: " --import" }), _jsx(_components.span, { style: { color: "#032F62", "--shiki-dark": "#96D0FF" }, children: " braintrust/hook.mjs" }), _jsx(_components.span, { style: { color: "#032F62", "--shiki-dark": "#96D0FF" }, children: " trace-adk-auto.js" })] }), "\n"] }) }) }), _jsxs(_components.p, { children: ["If you’re using a bundler or Next.js Turbopack, see ", _jsx(_components.a, { href: "/instrument/trace-llm-calls#auto-instrumentation", children: "Trace LLM calls" }), " for plugin and loader setup."] })] })] }), _jsx(Heading, { level: "2", id: "manual-instrumentation-typescript", children: "Manual instrumentation" }), _jsxs(_components.p, { children: ["To trace the ADK module manually, wrap it yourself with ", _jsx(_components.code, { children: "wrapGoogleADK()" }), " and destructure the wrapped classes from the result."] }), _jsx(Note, { children: _jsx(_components.p, { children: "Manual instrumentation traces runner, agent, and tool spans, but not LLM call spans. ADK constructs its model client internally, so user-side wrapping cannot intercept the underlying model calls. To capture LLM spans, use auto-instrumentation instead." }) }), _jsx(CodeGroup, { children: _jsx(CodeBlock, { filename: "trace-adk-wrap.js", expandable: "true", numberOfLines: "74", language: "javascript", children: _jsx(_components.pre, { className: "shiki shiki-themes github-light github-dark-dimmed", style: { backgroundColor: "#fff", "--shiki-dark-bg": "#22272e", color: "#24292e", "--shiki-dark": "#adbac7" }, language: "javascript", children: _jsxs(_components.code, { language: "javascript", numberOfLines: "74", children: [_jsxs(_components.span, { className: "line", children: [_jsx(_components.span, { style: { color: "#D73A49", "--shiki-dark": "#F47067" }, children: "import" }), _jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: " { initLogger, wrapGoogleADK } " }), _jsx(_components.span, { style: { color: "#D73A49", "--shiki-dark": "#F47067" }, children: "from" }), _jsx(_components.span, { style: { color: "#032F62", "--shiki-dark": "#96D0FF" }, children: " \"braintrust\"" }), _jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: ";" })] }), "\n", _jsxs(_components.span, { className: "line", children: [_jsx(_components.span, { style: { color: "#D73A49", "--shiki-dark": "#F47067" }, children: "import" }), _jsx(_components.span, { style: { color: "#005CC5", "--shiki-dark": "#6CB6FF" }, children: " *" }), _jsx(_components.span, { style: { color: "#D73A49", "--shiki-dark": "#F47067" }, children: " as" }), _jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: " adk " }), _jsx(_components.span, { style: { color: "#D73A49", "--shiki-dark": "#F47067" }, children: "from" }), _jsx(_components.span, { style: { color: "#032F62", "--shiki-dark": "#96D0FF" }, children: " \"@google/adk\"" }), _jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: ";" })] }), "\n", _jsx(_components.span, { className: "line" }), "\n", _jsxs(_components.span, { className: "line", children: [_jsx(_components.span, { style: { color: "#6F42C1", "--shiki-dark": "#DCBDFB" }, children: "initLogger" }), _jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: "({" })] }), "\n", _jsxs(_components.span, { className: "line", children: [_jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: " projectName: " }), _jsx(_components.span, { style: { color: "#032F62", "--shiki-dark": "#96D0FF" }, children: "\"my-adk-project\"" }), _jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: "," })] }), "\n", _jsxs(_components.span, { className: "line", children: [_jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: " apiKey: process.env." }), _jsx(_components.span, { style: { color: "#005CC5", "--shiki-dark": "#6CB6FF" }, children: "BRAINTRUST_API_KEY" }), _jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: "," })] }), "\n", _jsx(_components.span, { className: "line", children: _jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: "});" }) }), "\n", _jsx(_components.span, { className: "line" }), "\n", _jsxs(_components.span, { className: "line", children: [_jsx(_components.span, { style: { color: "#D73A49", "--shiki-dark": "#F47067" }, children: "const" }), _jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: " { " }), _jsx(_components.span, { style: { color: "#005CC5", "--shiki-dark": "#6CB6FF" }, children: "LlmAgent" }), _jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: ", " }), _jsx(_components.span, { style: { color: "#005CC5", "--shiki-dark": "#6CB6FF" }, children: "InMemoryRunner" }), _jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: ", " }), _jsx(_components.span, { style: { color: "#005CC5", "--shiki-dark": "#6CB6FF" }, children: "FunctionTool" }), _jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: " } " }), _jsx(_components.span, { style: { color: "#D73A49", "--shiki-dark": "#F47067" }, children: "=" }), _jsx(_components.span, { style: { color: "#6F42C1", "--shiki-dark": "#DCBDFB" }, children: " wrapGoogleADK" }), _jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: "(adk);" })] }), "\n", _jsx(_components.span, { className: "line" }), "\n", _jsx(_components.span, { className: "line", children: _jsx(_components.span, { style: { color: "#6A737D", "--shiki-dark": "#768390" }, children: "// Create the tools" }) }), "\n", _jsxs(_components.span, { className: "line", children: [_jsx(_components.span, { style: { color: "#D73A49", "--shiki-dark": "#F47067" }, children: "const" }), _jsx(_components.span, { style: { color: "#005CC5", "--shiki-dark": "#6CB6FF" }, children: " getWeatherTool" }), _jsx(_components.span, { style: { color: "#D73A49", "--shiki-dark": "#F47067" }, children: " =" }), _jsx(_components.span, { style: { color: "#D73A49", "--shiki-dark": "#F47067" }, children: " new" }), _jsx(_components.span, { style: { color: "#6F42C1", "--shiki-dark": "#DCBDFB" }, children: " FunctionTool" }), _jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: "({" })] }), "\n", _jsxs(_components.span, { className: "line", children: [_jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: " name: " }), _jsx(_components.span, { style: { color: "#032F62", "--shiki-dark": "#96D0FF" }, children: "\"get_weather\"" }), _jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: "," })] }), "\n", _jsxs(_components.span, { className: "line", children: [_jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: " description: " }), _jsx(_components.span, { style: { color: "#032F62", "--shiki-dark": "#96D0FF" }, children: "\"Get weather for a city.\"" }), _jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: "," })] }), "\n", _jsx(_components.span, { className: "line", children: _jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: " parameters: {" }) }), "\n", _jsxs(_components.span, { className: "line", children: [_jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: " type: " }), _jsx(_components.span, { style: { color: "#032F62", "--shiki-dark": "#96D0FF" }, children: "\"object\"" }), _jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: "," })] }), "\n", _jsx(_components.span, { className: "line", children: _jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: " properties: {" }) }), "\n", _jsx(_components.span, { className: 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"#ADBAC7" }, children: " runner." }), _jsx(_components.span, { style: { color: "#6F42C1", "--shiki-dark": "#DCBDFB" }, children: "runAsync" }), _jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: "({" })] }), "\n", _jsx(_components.span, { className: "line", children: _jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: " userId," }) }), "\n", _jsx(_components.span, { className: "line", children: _jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: " sessionId," }) }), "\n", _jsx(_components.span, { className: "line", children: _jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: " newMessage: {" }) }), "\n", _jsxs(_components.span, { className: "line", children: [_jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: " role: " }), _jsx(_components.span, { style: { color: "#032F62", "--shiki-dark": "#96D0FF" }, children: "\"user\"" }), _jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: "," })] }), "\n", _jsxs(_components.span, { className: "line", children: [_jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: " parts: [{ text: " }), _jsx(_components.span, { style: { color: "#032F62", "--shiki-dark": "#96D0FF" }, children: "\"What's the weather like in New York?\"" }), _jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: " }]," })] }), "\n", _jsx(_components.span, { className: "line", children: _jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: " }," }) }), "\n", _jsx(_components.span, { className: "line", children: _jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: "})) {" }) }), "\n", _jsxs(_components.span, { className: "line", children: [_jsx(_components.span, { style: { color: 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children: "Tool calls as tool spans nested under the agent, with arguments as input, the result as output, and the tool name plus call ID in metadata" }), "\n", _jsx(_components.li, { children: "Token usage (prompt, completion, total, cached, and reasoning tokens) aggregated across the run on the runner span" }), "\n", _jsx(_components.li, { children: "LLM calls inside ADK as nested LLM spans, traced via Braintrust’s Google GenAI integration since ADK uses Google GenAI internally for model calls" }), "\n"] }), _jsx(Heading, { level: "2", id: "resources-typescript", children: "Resources" }), _jsxs(_components.ul, { children: ["\n", _jsx(_components.li, { children: _jsx(_components.a, { href: "https://github.com/google/adk-js", children: "Google ADK for TypeScript" }) }), "\n", _jsx(_components.li, { children: _jsx(_components.a, { href: "https://ai.google.dev/", children: "Google Gemini models" }) }), "\n"] })] }), "\n", _jsxs(View, { title: "Python", icon: 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Requires ", _jsx(_components.code, { children: "google-adk" }), " v1.14.1 or later."] }), _jsxs(Steps, { children: [_jsx(Step, { title: "Install packages", children: _jsxs(CodeGroup, { children: [_jsx(CodeBlock, { filename: "uv", numberOfLines: "1", language: "shellscript", children: _jsx(_components.pre, { className: "shiki shiki-themes github-light github-dark-dimmed", style: { backgroundColor: "#fff", "--shiki-dark-bg": "#22272e", color: "#24292e", "--shiki-dark": "#adbac7" }, language: "shellscript", children: _jsxs(_components.code, { language: "shellscript", numberOfLines: "1", children: [_jsxs(_components.span, { className: "line", children: [_jsx(_components.span, { style: { color: "#6F42C1", "--shiki-dark": "#F69D50" }, children: "uv" }), _jsx(_components.span, { style: { color: "#032F62", "--shiki-dark": "#96D0FF" }, children: " add" }), _jsx(_components.span, { style: { color: "#032F62", "--shiki-dark": "#96D0FF" }, children: " braintrust" }), _jsx(_components.span, { style: 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className: "line", children: [_jsx(_components.span, { style: { color: "#D73A49", "--shiki-dark": "#F47067" }, children: "def" }), _jsx(_components.span, { style: { color: "#6F42C1", "--shiki-dark": "#DCBDFB" }, children: " get_weather" }), _jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: "(city: " }), _jsx(_components.span, { style: { color: "#005CC5", "--shiki-dark": "#6CB6FF" }, children: "str" }), _jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: ") -> " }), _jsx(_components.span, { style: { color: "#005CC5", "--shiki-dark": "#6CB6FF" }, children: "dict" }), _jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: ":" })] }), "\n", _jsx(_components.span, { className: "line", children: _jsx(_components.span, { style: { color: "#032F62", "--shiki-dark": "#96D0FF" }, children: " \"\"\"Get weather for a city.\"\"\"" }) }), "\n", _jsxs(_components.span, { className: "line", children: [_jsx(_components.span, { style: { color: "#D73A49", "--shiki-dark": "#F47067" }, children: " return" }), _jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: " {" }), _jsx(_components.span, { style: { color: "#032F62", "--shiki-dark": "#96D0FF" }, children: "\"temperature\"" }), _jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: ": " }), _jsx(_components.span, { style: { color: "#005CC5", "--shiki-dark": "#6CB6FF" }, children: "72" }), _jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: ", " }), _jsx(_components.span, { style: { color: "#032F62", "--shiki-dark": "#96D0FF" }, children: "\"condition\"" }), _jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: ": " }), _jsx(_components.span, { style: { color: "#032F62", "--shiki-dark": "#96D0FF" }, children: "\"sunny\"" }), _jsx(_components.span, { style: { color: 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style: { color: "#032F62", "--shiki-dark": "#96D0FF" }, children: " \"\"\"Get the current time.\"\"\"" }) }), "\n", _jsxs(_components.span, { className: "line", children: [_jsx(_components.span, { style: { color: "#D73A49", "--shiki-dark": "#F47067" }, children: " from" }), _jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: " datetime " }), _jsx(_components.span, { style: { color: "#D73A49", "--shiki-dark": "#F47067" }, children: "import" }), _jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: " datetime" })] }), "\n", _jsx(_components.span, { className: "line" }), "\n", _jsxs(_components.span, { className: "line", children: [_jsx(_components.span, { style: { color: "#D73A49", "--shiki-dark": "#F47067" }, children: " return" }), _jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: " datetime.now().strftime(" }), _jsx(_components.span, { style: { color: "#032F62", "--shiki-dark": "#96D0FF" }, children: "\"%I:%M %p\"" }), _jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: ")" })] }), "\n", _jsx(_components.span, { className: "line" }), "\n", _jsxs(_components.span, { className: "line", children: [_jsx(_components.span, { style: { color: "#D73A49", "--shiki-dark": "#F47067" }, children: "async" }), _jsx(_components.span, { style: { color: "#D73A49", "--shiki-dark": "#F47067" }, children: " def" }), _jsx(_components.span, { style: { color: "#6F42C1", "--shiki-dark": "#DCBDFB" }, children: " main" }), _jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: "():" })] }), "\n", _jsx(_components.span, { className: "line", children: _jsx(_components.span, { style: { color: "#6A737D", "--shiki-dark": "#768390" }, children: " # Create the agent" }) }), "\n", _jsxs(_components.span, { className: "line", children: [_jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": 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}), _jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: "[get_weather, get_current_time]," })] }), "\n", _jsxs(_components.span, { className: "line", children: [_jsx(_components.span, { style: { color: "#E36209", "--shiki-dark": "#F69D50" }, children: " model" }), _jsx(_components.span, { style: { color: "#D73A49", "--shiki-dark": "#F47067" }, children: "=" }), _jsx(_components.span, { style: { color: "#032F62", "--shiki-dark": "#96D0FF" }, children: "\"gemini-2.5-flash\"" }), _jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: "," })] }), "\n", _jsxs(_components.span, { className: "line", children: [_jsx(_components.span, { style: { color: "#E36209", "--shiki-dark": "#F69D50" }, children: " instruction" }), _jsx(_components.span, { style: { color: "#D73A49", "--shiki-dark": "#F47067" }, children: "=" }), _jsx(_components.span, { style: { color: "#032F62", "--shiki-dark": "#96D0FF" }, children: "\"You are a helpful assistant that can check weather and time.\"" }), _jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: "," })] }), "\n", _jsx(_components.span, { className: "line", children: _jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: " )" }) }), "\n", _jsx(_components.span, { className: "line", children: _jsx(_components.span, { style: { color: "#6A737D", "--shiki-dark": "#768390" }, children: " # Create a session service and a runner" }) }), "\n", _jsxs(_components.span, { className: "line", children: [_jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: " session_service " }), _jsx(_components.span, { style: { color: "#D73A49", "--shiki-dark": "#F47067" }, children: "=" }), _jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: " InMemorySessionService()" })] }), "\n", _jsxs(_components.span, { className: "line", children: [_jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: " runner " }), _jsx(_components.span, { style: { color: "#D73A49", "--shiki-dark": "#F47067" }, children: "=" }), _jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: " Runner(" }), _jsx(_components.span, { style: { color: "#E36209", "--shiki-dark": "#F69D50" }, children: "app_name" }), _jsx(_components.span, { style: { color: "#D73A49", "--shiki-dark": "#F47067" }, children: "=" }), _jsx(_components.span, { style: { color: "#032F62", "--shiki-dark": "#96D0FF" }, children: "\"weather_app\"" }), _jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: ", " }), _jsx(_components.span, { style: { color: "#E36209", "--shiki-dark": "#F69D50" }, children: "agent" }), _jsx(_components.span, { style: { color: "#D73A49", "--shiki-dark": "#F47067" }, children: "=" }), _jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: "agent, " }), _jsx(_components.span, { style: { color: "#E36209", "--shiki-dark": "#F69D50" }, children: "session_service" }), _jsx(_components.span, { style: { color: "#D73A49", "--shiki-dark": "#F47067" }, children: "=" }), _jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: "session_service)" })] }), "\n", _jsx(_components.span, { className: "line", children: _jsx(_components.span, { style: { color: "#6A737D", "--shiki-dark": "#768390" }, children: " # Create a fake session" }) }), "\n", _jsxs(_components.span, { className: "line", children: [_jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: " user_id " }), _jsx(_components.span, { style: { color: "#D73A49", "--shiki-dark": "#F47067" }, children: "=" }), _jsx(_components.span, { style: { color: "#032F62", "--shiki-dark": "#96D0FF" }, children: " \"user123\"" })] }), "\n", _jsxs(_components.span, { className: "line", children: [_jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: " session_id " }), _jsx(_components.span, { style: { color: "#D73A49", "--shiki-dark": "#F47067" }, children: "=" }), _jsx(_components.span, { style: { color: "#032F62", "--shiki-dark": "#96D0FF" }, children: " \"session123\"" })] }), "\n", _jsxs(_components.span, { className: "line", children: [_jsx(_components.span, { style: { color: "#D73A49", "--shiki-dark": "#F47067" }, children: " await" }), _jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: " session_service.create_session(" }), _jsx(_components.span, { style: { color: "#E36209", "--shiki-dark": "#F69D50" }, children: "app_name" }), _jsx(_components.span, { style: { color: "#D73A49", "--shiki-dark": "#F47067" }, children: "=" }), _jsx(_components.span, { style: { color: "#032F62", "--shiki-dark": "#96D0FF" }, children: "\"weather_app\"" }), _jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: ", " }), _jsx(_components.span, { style: { color: "#E36209", "--shiki-dark": "#F69D50" }, children: "user_id" }), _jsx(_components.span, { style: { color: "#D73A49", "--shiki-dark": "#F47067" }, children: "=" }), _jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: "user_id, " }), _jsx(_components.span, { style: { color: "#E36209", "--shiki-dark": "#F69D50" }, children: "session_id" }), _jsx(_components.span, { style: { color: "#D73A49", "--shiki-dark": "#F47067" }, children: "=" }), _jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: "session_id)" })] }), "\n", _jsx(_components.span, { className: "line", children: _jsx(_components.span, { style: { color: "#6A737D", "--shiki-dark": "#768390" }, children: " # Create the message to send" }) }), "\n", _jsxs(_components.span, { className: "line", children: [_jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: " new_message " }), _jsx(_components.span, { style: { color: "#D73A49", "--shiki-dark": "#F47067" }, children: "=" }), _jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: " types.Content(" })] }), "\n", _jsxs(_components.span, { className: "line", children: [_jsx(_components.span, { style: { color: "#E36209", "--shiki-dark": "#F69D50" }, children: " parts" }), _jsx(_components.span, { style: { color: "#D73A49", "--shiki-dark": "#F47067" }, children: "=" }), _jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: "[types.Part(" }), _jsx(_components.span, { style: { color: "#E36209", "--shiki-dark": "#F69D50" }, children: "text" }), _jsx(_components.span, { style: { color: "#D73A49", "--shiki-dark": "#F47067" }, children: "=" }), _jsx(_components.span, { style: { color: "#032F62", "--shiki-dark": "#96D0FF" }, children: "\"What's the weather like in New York?\"" }), _jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: ")]," })] }), "\n", _jsxs(_components.span, { className: "line", children: [_jsx(_components.span, { style: { color: "#E36209", "--shiki-dark": "#F69D50" }, children: " role" }), _jsx(_components.span, { style: { color: "#D73A49", "--shiki-dark": "#F47067" }, children: "=" }), _jsx(_components.span, { style: { color: "#032F62", "--shiki-dark": "#96D0FF" }, children: "\"user\"" }), _jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: "," })] }), "\n", _jsx(_components.span, { className: "line", children: _jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: " )" }) }), "\n", _jsx(_components.span, { className: "line", children: _jsx(_components.span, { style: { color: "#6A737D", "--shiki-dark": "#768390" }, children: " # Run the agent with the query" }) }), "\n", _jsxs(_components.span, { className: "line", children: [_jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: " events " }), _jsx(_components.span, { style: { color: "#D73A49", "--shiki-dark": "#F47067" }, children: "=" }), _jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: " runner.run(" })] }), "\n", _jsxs(_components.span, { className: "line", children: [_jsx(_components.span, { style: { color: "#E36209", "--shiki-dark": "#F69D50" }, children: " user_id" }), _jsx(_components.span, { style: { color: "#D73A49", "--shiki-dark": "#F47067" }, children: "=" }), _jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: "user_id," })] }), "\n", _jsxs(_components.span, { className: "line", children: [_jsx(_components.span, { style: { color: "#E36209", "--shiki-dark": "#F69D50" }, children: " session_id" }), _jsx(_components.span, { style: { color: "#D73A49", "--shiki-dark": "#F47067" }, children: "=" }), _jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: "session_id," })] }), "\n", _jsxs(_components.span, { className: "line", children: [_jsx(_components.span, { style: { color: "#E36209", "--shiki-dark": "#F69D50" }, children: " new_message" }), _jsx(_components.span, { style: { color: "#D73A49", "--shiki-dark": "#F47067" }, children: "=" }), _jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: "new_message," })] }), "\n", _jsx(_components.span, { className: "line", children: _jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: " )" }) }), "\n", _jsx(_components.span, { className: "line", children: _jsx(_components.span, { style: { color: "#6A737D", "--shiki-dark": "#768390" }, children: " # Process the events and print the agent's response" }) }), "\n", _jsxs(_components.span, { className: "line", children: [_jsx(_components.span, { style: { color: "#D73A49", "--shiki-dark": "#F47067" }, children: " for" }), 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children: " ==" }), _jsx(_components.span, { style: { color: "#032F62", "--shiki-dark": "#96D0FF" }, children: " \"__main__\"" }), _jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: ":" })] }), "\n", _jsx(_components.span, { className: "line", children: _jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: " asyncio.run(main())" }) }), "\n"] }) }) }) }), _jsx(Heading, { level: "2", id: "what-traced-python", children: "What Braintrust traces" }), _jsx(_components.p, { children: "Braintrust captures:" }), _jsxs(_components.ul, { children: ["\n", _jsxs(_components.li, { children: ["Runner invocations as task spans named ", _jsx(_components.code, { children: "invocation []" }), ", with the new message as input, the final event as output, and the user and session IDs in metadata"] }), "\n", _jsxs(_components.li, { children: ["Agent runs as task spans named ", _jsx(_components.code, { children: "agent_run []" }), ", nested under the runner"] }), "\n", _jsxs(_components.li, { children: ["Each model call cycle as a task span named ", _jsx(_components.code, { children: "call_llm" })] }), "\n", _jsxs(_components.li, { children: ["Individual model invocations as LLM spans named ", _jsx(_components.code, { children: "llm_call []" }), ", where ", _jsx(_components.code, { children: "" }), " is one of ", _jsx(_components.code, { children: "direct_response" }), ", ", _jsx(_components.code, { children: "tool_selection" }), ", or ", _jsx(_components.code, { children: "response_generation" }), ". The span captures the model request, the response, and the model name in metadata"] }), "\n", _jsxs(_components.li, { children: ["Token usage (prompt, completion, total, cached, and reasoning tokens) plus ", _jsx(_components.code, { children: "time_to_first_token" }), " on the LLM span"] }), "\n", _jsxs(_components.li, { children: ["Tool calls as tool spans named ", _jsx(_components.code, { children: "tool []" }), ", with the tool name and arguments as input and the result as output"] }), "\n", _jsxs(_components.li, { children: ["MCP tool calls as tool spans named ", _jsx(_components.code, { children: "mcp_tool []" })] }), "\n"] }), _jsx(Heading, { level: "2", id: "resources-python", children: "Resources" }), _jsxs(_components.ul, { children: ["\n", _jsx(_components.li, { children: _jsx(_components.a, { href: "https://github.com/google/adk-python", children: "Google ADK documentation for Python" }) }), "\n", _jsx(_components.li, { children: _jsx(_components.a, { href: "https://ai.google.dev/", children: "Google Gemini models" }) }), "\n"] })] }), "\n", _jsxs(View, { title: "Go", icon: "https://img.logo.dev/go.dev?token=pk_BdcHD9e5SCW3j1rnJkNyMQ", id: "go", children: [_jsx(Heading, { level: "2", id: "setup-go", children: "Setup" }), _jsxs(_components.p, { children: ["Install the Braintrust Go SDK and the ADK contrib package, then set your API keys. Requires ", _jsx(_components.code, { children: "google.golang.org/adk" }), " v0.4.0 or later."] }), _jsxs(Steps, { children: [_jsx(Step, { title: "Install packages", children: _jsx(CodeBlock, { filename: "", numberOfLines: "2", language: "shellscript", children: _jsx(_components.pre, { className: "shiki shiki-themes github-light github-dark-dimmed", style: { backgroundColor: "#fff", "--shiki-dark-bg": "#22272e", color: "#24292e", "--shiki-dark": "#adbac7" }, language: "shellscript", children: _jsxs(_components.code, { language: "shellscript", numberOfLines: "2", children: [_jsxs(_components.span, { className: "line", children: [_jsx(_components.span, { style: { color: "#6F42C1", "--shiki-dark": "#F69D50" }, children: "go" }), _jsx(_components.span, { style: { color: "#032F62", "--shiki-dark": "#96D0FF" }, children: " get" }), _jsx(_components.span, { style: { color: "#032F62", "--shiki-dark": "#96D0FF" }, children: " github.com/braintrustdata/braintrust-sdk-go" })] }), "\n", 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color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: "BRAINTRUST_API_KEY" }), _jsx(_components.span, { style: { color: "#D73A49", "--shiki-dark": "#F47067" }, children: "=<" }), _jsx(_components.span, { style: { color: "#032F62", "--shiki-dark": "#96D0FF" }, children: "your-braintrust-api-key" }), _jsx(_components.span, { style: { color: "#D73A49", "--shiki-dark": "#F47067" }, children: ">" })] }), "\n", _jsxs(_components.span, { className: "line", children: [_jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: "GEMINI_API_KEY" }), _jsx(_components.span, { style: { color: "#D73A49", "--shiki-dark": "#F47067" }, children: "=<" }), _jsx(_components.span, { style: { color: "#032F62", "--shiki-dark": "#96D0FF" }, children: "your-gemini-api-key" }), _jsx(_components.span, { style: { color: "#D73A49", "--shiki-dark": "#F47067" }, children: ">" })] }), "\n", _jsx(_components.span, { className: "line" }), "\n", _jsx(_components.span, { className: "line", children: _jsx(_components.span, { style: { color: "#6A737D", "--shiki-dark": "#768390" }, children: "# For organizations on the EU data plane, use https://api-eu.braintrust.dev" }) }), "\n", _jsx(_components.span, { className: "line", children: _jsx(_components.span, { style: { color: "#6A737D", "--shiki-dark": "#768390" }, children: "# For self-hosted deployments, use your data plane URL" }) }), "\n", _jsx(_components.span, { className: "line", children: _jsx(_components.span, { style: { color: "#6A737D", "--shiki-dark": "#768390" }, children: "# BRAINTRUST_API_URL=" }) }), "\n"] }) }) }) })] }), _jsx(Heading, { level: "2", id: "manual-instrumentation-go", children: "Manual instrumentation" }), _jsxs(_components.p, { children: ["Call ", _jsx(_components.code, { children: "traceadk.AddLLMAgentCallbacks(&cfg)" }), " on the agent config before constructing the agent."] }), _jsx(CodeGroup, { children: _jsx(CodeBlock, { filename: "Go", expandable: "true", numberOfLines: "155", 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className: "line", children: _jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: "}" }) }), "\n", _jsx(_components.span, { className: "line" }), "\n", _jsxs(_components.span, { className: "line", children: [_jsx(_components.span, { style: { color: "#D73A49", "--shiki-dark": "#F47067" }, children: "type" }), _jsx(_components.span, { style: { color: "#6F42C1", "--shiki-dark": "#F69D50" }, children: " getWeatherResult" }), _jsx(_components.span, { style: { color: "#D73A49", "--shiki-dark": "#F47067" }, children: " struct" }), _jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: " {" })] }), "\n", _jsxs(_components.span, { className: "line", children: [_jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: "\tTemperature " }), _jsx(_components.span, { style: { color: "#D73A49", "--shiki-dark": "#F47067" }, children: "int" }), _jsx(_components.span, { style: { color: "#032F62", 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color: "#6F42C1", "--shiki-dark": "#DCBDFB" }, children: "Tracer" }), _jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: "(" }), _jsx(_components.span, { style: { color: "#032F62", "--shiki-dark": "#96D0FF" }, children: "\"adk-example\"" }), _jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: ")" })] }), "\n", _jsxs(_components.span, { className: "line", children: [_jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: "\tctx, span " }), _jsx(_components.span, { style: { color: "#D73A49", "--shiki-dark": "#F47067" }, children: ":=" }), _jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: " tracer." }), _jsx(_components.span, { style: { color: "#6F42C1", "--shiki-dark": "#DCBDFB" }, children: "Start" }), _jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: "(ctx, " }), _jsx(_components.span, { style: { color: "#032F62", "--shiki-dark": "#96D0FF" }, children: "\"adk-agent-run\"" }), _jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: ")" })] }), "\n", _jsxs(_components.span, { className: "line", children: [_jsx(_components.span, { style: { color: "#D73A49", "--shiki-dark": "#F47067" }, children: "\tdefer" }), _jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: " span." }), _jsx(_components.span, { style: { color: "#6F42C1", "--shiki-dark": "#DCBDFB" }, children: "End" }), _jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: "()" })] }), "\n", _jsx(_components.span, { className: "line" }), "\n", _jsx(_components.span, { className: "line", children: _jsx(_components.span, { style: { color: "#6A737D", "--shiki-dark": "#768390" }, children: "\t// Set up ADK model" }) }), "\n", _jsxs(_components.span, { className: "line", children: [_jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: "\tmodel, err " }), _jsx(_components.span, { style: { color: "#D73A49", "--shiki-dark": "#F47067" }, children: ":=" }), _jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: " gemini." }), _jsx(_components.span, { style: { color: "#6F42C1", "--shiki-dark": "#DCBDFB" }, children: "NewModel" }), _jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: "(ctx, " }), _jsx(_components.span, { style: { color: "#032F62", "--shiki-dark": "#96D0FF" }, children: "\"gemini-2.5-flash\"" }), _jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: ", " }), _jsx(_components.span, { style: { color: "#D73A49", "--shiki-dark": "#F47067" }, children: "&" }), _jsx(_components.span, { style: { color: "#6F42C1", "--shiki-dark": "#F69D50" }, children: "genai" }), _jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: "." }), _jsx(_components.span, { style: { color: "#6F42C1", "--shiki-dark": "#F69D50" }, children: "ClientConfig" }), _jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: "{" })] }), "\n", _jsxs(_components.span, { className: "line", children: [_jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: "\t\tAPIKey: os." }), _jsx(_components.span, { style: { color: "#6F42C1", "--shiki-dark": "#DCBDFB" }, children: "Getenv" }), _jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: "(" }), _jsx(_components.span, { style: { color: "#032F62", "--shiki-dark": "#96D0FF" }, children: "\"GEMINI_API_KEY\"" }), _jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: ")," })] }), "\n", _jsx(_components.span, { className: "line", children: _jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: "\t})" }) }), "\n", 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"\t\t\tName: " }), _jsx(_components.span, { style: { color: "#032F62", "--shiki-dark": "#96D0FF" }, children: "\"get_current_time\"" }), _jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: "," })] }), "\n", _jsxs(_components.span, { className: "line", children: [_jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: "\t\t\tDescription: " }), _jsx(_components.span, { style: { color: "#032F62", "--shiki-dark": "#96D0FF" }, children: "\"Get the current time.\"" }), _jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: "," })] }), "\n", _jsx(_components.span, { className: "line", children: _jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: "\t\t}," }) }), "\n", _jsx(_components.span, { className: "line", children: _jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: "\t\tgetCurrentTime," }) }), "\n", 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}), _jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: "(" }), _jsx(_components.span, { style: { color: "#032F62", "--shiki-dark": "#96D0FF" }, children: "\"Failed to create time tool: " }), _jsx(_components.span, { style: { color: "#005CC5", "--shiki-dark": "#F47067" }, children: "%v" }), _jsx(_components.span, { style: { color: "#032F62", "--shiki-dark": "#96D0FF" }, children: "\"" }), _jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: ", err)" })] }), "\n", _jsx(_components.span, { className: "line", children: _jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: "\t}" }) }), "\n", _jsx(_components.span, { className: "line" }), "\n", _jsx(_components.span, { className: "line", children: _jsx(_components.span, { style: { color: "#6A737D", "--shiki-dark": "#768390" }, children: "\t// Create agent with tracing callbacks" }) }), "\n", _jsxs(_components.span, { className: 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style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: "\tfmt." }), _jsx(_components.span, { style: { color: "#6F42C1", "--shiki-dark": "#DCBDFB" }, children: "Printf" }), _jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: "(" }), _jsx(_components.span, { style: { color: "#032F62", "--shiki-dark": "#96D0FF" }, children: "\"View trace: " }), _jsx(_components.span, { style: { color: "#005CC5", "--shiki-dark": "#F47067" }, children: "%s\\n" }), _jsx(_components.span, { style: { color: "#032F62", "--shiki-dark": "#96D0FF" }, children: "\"" }), _jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: ", bt." }), _jsx(_components.span, { style: { color: "#6F42C1", "--shiki-dark": "#DCBDFB" }, children: "Permalink" }), _jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: "(span))" })] }), "\n", _jsx(_components.span, { className: "line", children: _jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: "}" }) }), "\n"] }) }) }) }), _jsx(Heading, { level: "2", id: "avoiding-duplicate-spans-go", children: "Avoiding duplicate spans" }), _jsxs(_components.p, { children: ["Google ADK has built-in OpenTelemetry support that emits spans under the ", _jsx(_components.code, { children: "gcp.vertex.agent" }), " instrumentation scope. Braintrust drops these by default to avoid duplicating the spans produced by Braintrust’s ADK callbacks (found in ", _jsx(_components.code, { children: "trace/contrib/adk" }), ")."] }), _jsxs(_components.p, { children: ["If you’re not using ", _jsx(_components.code, { children: "traceadk.AddLLMAgentCallbacks" }), " (from the Braintrust ADK package), and you’re instead relying solely on ADK’s native telemetry, opt in to receive those spans by passing an option to ", _jsx(_components.code, { children: "braintrust.New" }), ":"] }), _jsx(CodeBlock, { filename: "", numberOfLines: "1", language: "go", children: _jsx(_components.pre, { className: "shiki shiki-themes github-light github-dark-dimmed", style: { backgroundColor: "#fff", "--shiki-dark-bg": "#22272e", color: "#24292e", "--shiki-dark": "#adbac7" }, language: "go", children: _jsxs(_components.code, { language: "go", numberOfLines: "1", children: [_jsxs(_components.span, { className: "line", children: [_jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: "braintrust." }), _jsx(_components.span, { style: { color: "#6F42C1", "--shiki-dark": "#DCBDFB" }, children: "New" }), _jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: "(tp, braintrust." }), _jsx(_components.span, { style: { color: "#6F42C1", "--shiki-dark": "#DCBDFB" }, children: "EnableBuiltinAdkTraces" }), _jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: "())" })] }), "\n"] }) }) }), _jsx(_components.p, { children: "Or by setting an environment variable:" }), _jsx(CodeBlock, { filename: "", numberOfLines: "1", language: "shellscript", children: _jsx(_components.pre, { className: "shiki shiki-themes github-light github-dark-dimmed", style: { backgroundColor: "#fff", "--shiki-dark-bg": "#22272e", color: "#24292e", "--shiki-dark": "#adbac7" }, language: "shellscript", children: _jsxs(_components.code, { language: "shellscript", numberOfLines: "1", children: [_jsxs(_components.span, { className: "line", children: [_jsx(_components.span, { style: { color: "#D73A49", "--shiki-dark": "#F47067" }, children: "export" }), _jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: " BRAINTRUST_OTEL_ENABLE_BUILTIN_ADK_TRACES" }), _jsx(_components.span, { style: { color: "#D73A49", "--shiki-dark": "#F47067" }, children: "=" }), _jsx(_components.span, { style: { color: "#24292E", "--shiki-dark": "#ADBAC7" }, children: "true" })] }), "\n"] }) }) }), _jsx(Heading, { level: "2", id: "what-traced-go", children: "What Braintrust traces" }), _jsx(_components.p, { children: "Braintrust captures:" }), _jsxs(_components.ul, { children: ["\n", _jsxs(_components.li, { children: ["Agent runs as task spans named ", _jsx(_components.code, { children: "agent_run []" }), ", with the agent name, invocation ID, session ID, and branch in metadata"] }), "\n", _jsxs(_components.li, { children: ["LLM model calls as LLM spans named ", _jsx(_components.code, { children: "call_llm" }), ", with the request as input, the response as output, the model name and finish reason in metadata, and token usage (prompt, completion, and total tokens)"] }), "\n", _jsxs(_components.li, { children: ["Tool calls as tool spans named ", _jsx(_components.code, { children: "tool []" }), ", with the tool name and description, arguments as input, and the result as output"] }), "\n"] }), _jsx(Heading, { level: "2", id: "resources-go", children: "Resources" }), _jsxs(_components.ul, { children: ["\n", _jsx(_components.li, { children: _jsx(_components.a, { href: "https://github.com/google/adk-go", children: "Google ADK documentation for Go" }) }), "\n", _jsx(_components.li, { children: _jsx(_components.a, { href: "https://ai.google.dev/", children: "Google Gemini models" }) }), "\n"] })] })] }); } function MDXContent(props = {}) { const {wrapper: MDXLayout} = { ..._provideComponents(), ...props.components }; return MDXLayout ? _jsx(MDXLayout, { ...props, children: _jsx(_createMdxContent, { ...props }) }) : _createMdxContent(props); } return { default: MDXContent }; function _missingMdxReference(id, component) { throw new Error("Expected " + (component ? "component" : "object") + " `" + id + "` to be defined: you likely forgot to import, pass, or provide it."); }

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