Diagnose: durable history, radar diagnose CLI, instant context

cmd/desktop/main.go

@@ -117,6 +117,8 @@ func main() {
 		PrometheusHeadersFromEnv: fileCfg.PrometheusHeadersFromEnv,
 		Version:                  version,
 		MCPEnabled:               fileCfg.MCPEnabledOr(true),
+		AIHistory:                fileCfg.AIHistoryOr(true),
+		AIHistoryDBPath:          fileCfg.AIHistoryDBPath,
 	}
 
 	app.SetGlobals(cfg)

cmd/explorer/main.go

@@ -19,6 +19,7 @@ import (
 	"github.com/skyhook-io/radar/internal/auth"
 	"github.com/skyhook-io/radar/internal/cloud"
 	"github.com/skyhook-io/radar/internal/config"
+	"github.com/skyhook-io/radar/internal/diagnosecli"
 	"github.com/skyhook-io/radar/internal/k8s"
 	mcppkg "github.com/skyhook-io/radar/internal/mcp"
 	"github.com/skyhook-io/radar/internal/server"
@@ -32,6 +33,14 @@ var (
 )
 
 func main() {
+	// Subcommand dispatch (before flag parsing — subcommands own their flags).
+	// `radar diagnose <kind>/<name>` is a thin client for a RUNNING instance.
+	if len(os.Args) > 1 && os.Args[1] == "diagnose" {
+		os.Exit(diagnosecli.Run(os.Args[2:], func(url string) {
+			app.OpenBrowser(url, "")
+		}))
+	}
+
 	startupStart := time.Now()
 
 	// Propagate the build-time version to the cloud dialer so the agent
@@ -69,6 +78,8 @@ func main() {
 	timelineDBPath := flag.String("timeline-db", fileCfg.TimelineDBPath, "Path to timeline database file (default: ~/.radar/timeline.db)")
 	timelineRetention := flag.Duration("timeline-retention", fileCfg.TimelineRetentionOr(7*24*time.Hour), "How long to retain timeline events when --timeline-storage=sqlite (e.g. 168h, 720h). 0 disables age-based cleanup.")
 	timelineMaxSize := flag.String("timeline-max-size", fileCfg.TimelineMaxSizeOr("1Gi"), "Maximum SQLite timeline storage size before pruning oldest events (e.g. 800Mi, 8Gi). 0 disables size-based pruning.")
+	// AI history (Diagnose investigations)
+	aiHistory := flag.Bool("ai-history", fileCfg.AIHistoryOr(true), "Persist AI investigations (transcripts + verdicts) to ~/.radar/ai-runs.db so they survive restarts")
 	// Traffic/metrics options
 	prometheusURL := flag.String("prometheus-url", fileCfg.PrometheusURL, "Manual Prometheus/VictoriaMetrics URL (skips auto-discovery)")
 	// --prometheus-header Key=Value, repeatable. Defaults populated from
@@ -222,6 +233,8 @@ func main() {
 		PrometheusHeaders:        resolvedPrometheusHeaders,
 		PrometheusHeadersFromEnv: promHeadersFromEnv.value(),
 		MCPEnabled:               mcpEnabled,
+		AIHistory:                *aiHistory,
+		AIHistoryDBPath:          fileCfg.AIHistoryDBPath,
 		Version:                  version,
 		AuthConfig: auth.Config{
 			Mode:                      *authMode,

internal/ai/diagnoser.go

@@ -84,14 +84,26 @@ type Request struct {
 // ResourceHealthSignal is the compact server-side health frame captured when a
 // run starts. Issue fields describe live operational findings; audit fields are
 // static posture findings and should not be treated as proof of an outage.
+// Issues/AuditFindings carry the top actual rows (capped) — aggregates alone
+// read as vague in the UI and starve the prompt of detail Radar already has.
 type ResourceHealthSignal struct {
-	Health          string `json:"health,omitempty"`
-	IssueCount      int    `json:"issueCount,omitempty"`
-	HighestSeverity string `json:"highestSeverity,omitempty"`
-	TopReason       string `json:"topReason,omitempty"`
-	AuditCount      int    `json:"auditCount,omitempty"`
-	AuditSeverity   string `json:"auditSeverity,omitempty"`
-	TopFinding      string `json:"topFinding,omitempty"`
+	Health          string       `json:"health,omitempty"`
+	IssueCount      int          `json:"issueCount,omitempty"`
+	HighestSeverity string       `json:"highestSeverity,omitempty"`
+	TopReason       string       `json:"topReason,omitempty"`
+	Issues          []HealthLine `json:"issues,omitempty"`
+	AuditCount      int          `json:"auditCount,omitempty"`
+	AuditSeverity   string       `json:"auditSeverity,omitempty"`
+	TopFinding      string       `json:"topFinding,omitempty"`
+	AuditFindings   []HealthLine `json:"auditFindings,omitempty"`
+}
+
+// HealthLine is one concrete issue/finding row: what Radar's issue engine or
+// audit suite actually said, not just a count.
+type HealthLine struct {
+	Severity string `json:"severity,omitempty"`
+	Reason   string `json:"reason,omitempty"`  // issue Reason / audit CheckID
+	Message  string `json:"message,omitempty"` // human detail, capped
 }
 
 // Diagnosis is the engine's final result.
@@ -473,6 +485,13 @@ func healthFrame(target string, health *ResourceHealthSignal) string {
 			}
 		}
 		b.WriteString(".")
+		for _, line := range health.Issues {
+			fmt.Fprintf(&b, " [%s] %s", line.Severity, line.Reason)
+			if line.Message != "" {
+				fmt.Fprintf(&b, ": %s", line.Message)
+			}
+			b.WriteString(".")
+		}
 	case health.Health == "healthy":
 		fmt.Fprintf(&b, "Radar currently reports %s as healthy and flags 0 active issues.", target)
 	case health.Health != "":