Documentation Grafana Cloud AI and machine learning Grafana AI Observability Get started Instrument Go

Instrument Go agents

This guide shows you how to install the AI Observability Go SDK, instrument an LLM call, and verify that generation data reaches AI Observability.

Before you begin

• A running AI Observability instance or Grafana Cloud stack with AI Observability enabled.
• Go 1.23 or later.
• Your AI Observability generation export endpoint URL.
• A Cloud Access Policy Token with the sigil:write scope. Refer to Create an API key for step-by-step instructions.

Install the SDK

Bash Copy

go get github.com/grafana/sigil-sdk/go

Capture a generation

Go Copy

package main

import (
	"context"

	"github.com/grafana/sigil-sdk/go/sigil"
)

func main() {
	cfg := sigil.DefaultConfig()
	cfg.GenerationExport.Protocol = sigil.GenerationExportProtocolHTTP
	cfg.GenerationExport.Endpoint = "<SIGIL_ENDPOINT>/api/v1/generations:export"
	cfg.GenerationExport.Auth = sigil.AuthConfig{
		Mode:     sigil.ExportAuthModeTenant,
		TenantID: "<TENANT_ID>",
	}

	client := sigil.NewClient(cfg)
	defer func() { _ = client.Shutdown(context.Background()) }()

	ctx, rec := client.StartGeneration(context.Background(), sigil.GenerationStart{
		ConversationID: "conv-1",
		Model:          sigil.ModelRef{Provider: "openai", Name: "gpt-4o"},
	})
	defer rec.End()

	_ = ctx // pass ctx to downstream calls for trace propagation

	rec.SetResult(sigil.Generation{
		Output: []sigil.Message{sigil.AssistantTextMessage("Hello from Sigil")},
	}, nil)
}

Replace SIGIL_ENDPOINT and TENANT_ID with your values.

Use a provider helper

Provider helpers wrap LLM client calls to capture generations automatically. Helpers are available for OpenAI, Anthropic, and Gemini:

Bash Copy

go get github.com/grafana/sigil-sdk/go-providers/openai
go get github.com/grafana/sigil-sdk/go-providers/anthropic
go get github.com/grafana/sigil-sdk/go-providers/gemini

Use a framework integration

A Google ADK framework integration is available:

Bash Copy

go get github.com/grafana/sigil-sdk/go-frameworks/google-adk

Configure authentication

For Grafana Cloud, use basic auth with your Cloud Access Policy Token:

Go Copy

cfg.GenerationExport.Auth = sigil.AuthConfig{
	Mode:          sigil.ExportAuthModeBasic,
	TenantID:      "<INSTANCE_ID>",
	BasicPassword: "<API_KEY>",
}

Set up traces and metrics

The SDK emits OpenTelemetry spans and metrics alongside generation data. To export them, configure a TracerProvider and MeterProvider in your application before creating the Sigil client. Without this, traces and metrics are silently lost.

Refer to Set up traces and metrics for Grafana Cloud OTLP options and SDK configuration for setup snippets.

Verify data

Open the AI Observability plugin in Grafana and navigate to Conversations. Your generation should appear within a few seconds. Check your Traces and Metrics data sources for SDK-emitted spans and metrics.

Next steps

• Configure SDK options
• Instrument with framework integrations