feat(telemetry): emit cli_context property on main events

pkg/telemetry/clicontext.go

@@ -0,0 +1,76 @@
+package telemetry
+
+import (
+	"os"
+	"regexp"
+	"strings"
+
+	"github.com/algolia/cli/pkg/utils"
+)
+
+const (
+	ContextHuman        = "human"
+	ContextAgentUnknown = "agent:unknown"
+)
+
+var agentEnvVars = []struct {
+	envVar string
+	name   string
+}{
+	{"CLAUDECODE", "claude-code"},
+	{"CLAUDE_CODE", "claude-code"},
+	{"CLAUDE_CODE_SESSION_ID", "claude-code"},
+	{"CURSOR_AGENT", "cursor"},
+	{"CODEX_THREAD_ID", "codex"},
+	{"CODEX_SANDBOX", "codex"},
+	{"CODEX_CI", "codex"},
+	{"GEMINI_CLI", "gemini"},
+	{"COPILOT_CLI", "github-copilot"},
+	{"OPENCODE", "opencode"},
+	{"OPENCODE_CLIENT", "opencode"},
+	{"AMP_CURRENT_THREAD_ID", "amp"},
+	{"AUGMENT_AGENT", "augment"},
+	{"GOOSE_TERMINAL", "goose"},
+	{"CLINE_ACTIVE", "cline"},
+	{"ANTIGRAVITY_AGENT", "antigravity"},
+	{"PI_CODING_AGENT", "pi"},
+	{"KIRO_AGENT_PATH", "kiro"},
+}
+
+var genericAgentNameRe = regexp.MustCompile(`^[a-z][a-z0-9-]{0,31}$`)
+
+var booleanishValues = map[string]bool{
+	"true":  true,
+	"false": true,
+	"yes":   true,
+	"no":    true,
+	"on":    true,
+	"off":   true,
+}
+
+func DetectCLIContext() string {
+	return detectCLIContext(
+		os.Getenv,
+		utils.IsTerminal(os.Stdin),
+		utils.IsTerminal(os.Stdout),
+		utils.IsCI(),
+	)
+}
+
+func detectCLIContext(getenv func(string) string, stdinTTY, stdoutTTY, isCI bool) string {
+	for _, agent := range agentEnvVars {
+		if getenv(agent.envVar) != "" {
+			return "agent:" + agent.name
+		}
+	}
+	for _, key := range []string{"AI_AGENT", "AGENT"} {
+		v, _, _ := strings.Cut(strings.ToLower(strings.TrimSpace(getenv(key))), "_")
+		if genericAgentNameRe.MatchString(v) && !booleanishValues[v] {
+			return "agent:" + v
+		}
+	}
+	if !stdinTTY && !stdoutTTY && !isCI {
+		return ContextAgentUnknown
+	}
+	return ContextHuman
+}

pkg/telemetry/clicontext_test.go

@@ -0,0 +1,109 @@
+package telemetry
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func fakeEnv(vars map[string]string) func(string) string {
+	return func(key string) string { return vars[key] }
+}
+
+func TestDetectCLIContext_KnownAgents(t *testing.T) {
+	cases := []struct {
+		envVar string
+		want   string
+	}{
+		{"CLAUDECODE", "agent:claude-code"},
+		{"CLAUDE_CODE", "agent:claude-code"},
+		{"CLAUDE_CODE_SESSION_ID", "agent:claude-code"},
+		{"CURSOR_AGENT", "agent:cursor"},
+		{"CODEX_THREAD_ID", "agent:codex"},
+		{"CODEX_SANDBOX", "agent:codex"},
+		{"CODEX_CI", "agent:codex"},
+		{"GEMINI_CLI", "agent:gemini"},
+		{"COPILOT_CLI", "agent:github-copilot"},
+		{"OPENCODE", "agent:opencode"},
+		{"OPENCODE_CLIENT", "agent:opencode"},
+		{"AMP_CURRENT_THREAD_ID", "agent:amp"},
+		{"AUGMENT_AGENT", "agent:augment"},
+		{"GOOSE_TERMINAL", "agent:goose"},
+		{"CLINE_ACTIVE", "agent:cline"},
+		{"ANTIGRAVITY_AGENT", "agent:antigravity"},
+		{"PI_CODING_AGENT", "agent:pi"},
+		{"KIRO_AGENT_PATH", "agent:kiro"},
+	}
+	for _, c := range cases {
+		t.Run(c.envVar, func(t *testing.T) {
+			got := detectCLIContext(fakeEnv(map[string]string{c.envVar: "1"}), true, true, false)
+			assert.Equal(t, c.want, got)
+		})
+	}
+}
+
+func TestDetectCLIContext_GenericAIAgentVar(t *testing.T) {
+	got := detectCLIContext(fakeEnv(map[string]string{"AI_AGENT": "SomeAgent"}), true, true, false)
+	assert.Equal(t, "agent:someagent", got)
+}
+
+func TestDetectCLIContext_GenericAgentVar(t *testing.T) {
+	got := detectCLIContext(fakeEnv(map[string]string{"AGENT": "goose"}), true, true, false)
+	assert.Equal(t, "agent:goose", got)
+}
+
+func TestDetectCLIContext_AIAgentWinsOverAgent(t *testing.T) {
+	env := fakeEnv(map[string]string{"AI_AGENT": "v0", "AGENT": "goose"})
+	assert.Equal(t, "agent:v0", detectCLIContext(env, true, true, false))
+}
+
+func TestDetectCLIContext_WhitespaceOnlyGenericVar(t *testing.T) {
+	got := detectCLIContext(fakeEnv(map[string]string{"AI_AGENT": " "}), true, true, false)
+	assert.Equal(t, "human", got)
+}
+
+func TestDetectCLIContext_VersionStampedGenericVar(t *testing.T) {
+	got := detectCLIContext(fakeEnv(map[string]string{"AI_AGENT": "claude-code_2-1-210_agent"}), true, true, false)
+	assert.Equal(t, "agent:claude-code", got)
+}
+
+func TestDetectCLIContext_LeadingUnderscoreGenericVar(t *testing.T) {
+	got := detectCLIContext(fakeEnv(map[string]string{"AI_AGENT": "_foo"}), true, true, false)
+	assert.Equal(t, "human", got)
+}
+
+func TestDetectCLIContext_NumericGenericVar(t *testing.T) {
+	got := detectCLIContext(fakeEnv(map[string]string{"AGENT": "1"}), true, true, false)
+	assert.Equal(t, "human", got)
+}
+
+func TestDetectCLIContext_BooleanishGenericVar(t *testing.T) {
+	got := detectCLIContext(fakeEnv(map[string]string{"AGENT": "true"}), true, true, false)
+	assert.Equal(t, "human", got)
+}
+
+func TestDetectCLIContext_OverlongGenericVar(t *testing.T) {
+	got := detectCLIContext(fakeEnv(map[string]string{"AI_AGENT": "a-very-long-agent-name-exceeding-32-characters"}), true, true, false)
+	assert.Equal(t, "human", got)
+}
+
+func TestDetectCLIContext_NamedVarWinsOverGeneric(t *testing.T) {
+	env := fakeEnv(map[string]string{"CLAUDECODE": "1", "AI_AGENT": "other"})
+	assert.Equal(t, "agent:claude-code", detectCLIContext(env, true, true, false))
+}
+
+func TestDetectCLIContext_NoTTYNoCI(t *testing.T) {
+	assert.Equal(t, "agent:unknown", detectCLIContext(fakeEnv(nil), false, false, false))
+}
+
+func TestDetectCLIContext_NoTTYInCI(t *testing.T) {
+	assert.Equal(t, "human", detectCLIContext(fakeEnv(nil), false, false, true))
+}
+
+func TestDetectCLIContext_PipedOutputOnly(t *testing.T) {
+	assert.Equal(t, "human", detectCLIContext(fakeEnv(nil), true, false, false))
+}
+
+func TestDetectCLIContext_Interactive(t *testing.T) {
+	assert.Equal(t, "human", detectCLIContext(fakeEnv(nil), true, true, false))
+}

pkg/telemetry/telemetry.go

@@ -141,6 +141,7 @@ type CLIAnalyticsEventMetadata struct {
 	CommandFlags             []string // the command flags is the full list of flags passed to the command
 	CLIVersion               string   // the version of the CLI
 	OS                       string   // the OS of the system
+	CLIContext               string
 }
 
 // NewEventMetadata initializes an instance of CLIAnalyticsEventContext
@@ -150,6 +151,7 @@ func NewEventMetadata() *CLIAnalyticsEventMetadata {
 		InvocationID: uuid.NewRandom().String(),
 		CLIVersion:   version.Version,
 		OS:           runtime.GOOS,
+		CLIContext:   DetectCLIContext(),
 	}
 }
 
@@ -263,7 +265,7 @@ func (a *AnalyticsTelemetryClient) Track(
 ) error {
 	metadata := GetEventMetadata(ctx)
 
-	props := make(map[string]any, len(properties)+5)
+	props := make(map[string]any, len(properties)+6)
 	for k, v := range properties {
 		props[k] = v
 	}
@@ -273,6 +275,7 @@ func (a *AnalyticsTelemetryClient) Track(
 	props["command"] = metadata.CommandPath
 	props["flags"] = metadata.CommandFlags
 	props["sequence"] = a.sequence.Add(1)
+	props["cli_context"] = metadata.CLIContext
 
 	track := analytics.Track{
 		Event:       event,

pkg/telemetry/telemetry_test.go

@@ -3,6 +3,7 @@ package telemetry
 import (
 	"context"
 	"net/http"
+	"strings"
 	"sync"
 	"testing"
 
@@ -215,6 +216,31 @@ func TestTrack_MergesCustomProperties(t *testing.T) {
 	assert.Equal(t, "app-id", track.Properties["app_id"])
 }
 
+func TestTrack_IncludesCLIContext(t *testing.T) {
+	fake := &fakeAnalyticsClient{}
+	client := &AnalyticsTelemetryClient{client: fake}
+
+	metadata := NewEventMetadata()
+	metadata.CLIContext = "agent:claude-code"
+	ctx := WithEventMetadata(context.Background(), metadata)
+
+	require.NoError(t, client.Track(ctx, "Command Invoked", nil))
+	require.Len(t, fake.messages, 1)
+
+	track, ok := fake.messages[0].(analytics.Track)
+	require.True(t, ok)
+	assert.Equal(t, "agent:claude-code", track.Properties["cli_context"])
+}
+
+func TestNewEventMetadata_DetectsCLIContext(t *testing.T) {
+	metadata := NewEventMetadata()
+	assert.NotEmpty(t, metadata.CLIContext)
+	valid := metadata.CLIContext == ContextHuman ||
+		metadata.CLIContext == ContextAgentUnknown ||
+		strings.HasPrefix(metadata.CLIContext, "agent:")
+	assert.True(t, valid)
+}
+
 func TestTrack_SequenceIsMonotonic(t *testing.T) {
 	fake := &fakeAnalyticsClient{}
 	client := &AnalyticsTelemetryClient{client: fake}