1 files changed, 69 insertions, 0 deletions
diff --git a/stats.go b/stats.go
new file mode 100644
index 0000000..ae0d2c1
--- /dev/null
+++ b/stats.go
@@ -0,0 +1,69 @@
+package main
+
+/*
+	// The following are the Go equivalents of the gemini-cli's TypeScript
+	// interfaces for session statistics. You can use these to collect and
+	// store metrics in your application.
+
+	// ToolCallDecision represents the user's decision on a tool call.
+	type ToolCallDecision string
+
+	const (
+		Accept     ToolCallDecision = "accept"
+		Reject     ToolCallDecision = "reject"
+		Modify     ToolCallDecision = "modify"
+		AutoAccept ToolCallDecision = "auto_accept"
+	)
+
+	// ToolCallStats holds the statistics for a single tool.
+	type ToolCallStats struct {
+		Count      int
+		Success    int
+		Fail       int
+		DurationMs int
+		Decisions  map[ToolCallDecision]int
+	}
+
+	// ModelMetrics holds the statistics for a single model.
+	type ModelMetrics struct {
+		API struct {
+			TotalRequests  int
+			TotalErrors    int
+			TotalLatencyMs int
+		}
+		Tokens struct {
+			Prompt     int
+			Candidates int
+			Total      int
+			Cached     int
+			Thoughts   int
+			Tool       int
+		}
+	}
+
+	// SessionMetrics holds all the statistics for a session.
+	type SessionMetrics struct {
+		Models map[string]ModelMetrics
+		Tools  struct {
+			TotalCalls      int
+			TotalSuccess    int
+			TotalFail       int
+			TotalDurationMs int
+			TotalDecisions  map[ToolCallDecision]int
+			ByName          map[string]ToolCallStats
+		}
+		Files struct {
+			TotalLinesAdded   int
+			TotalLinesRemoved int
+		}
+	}
+
+	// You will need to initialize and update this struct as your application
+	// makes API calls and runs tools.
+	var sessionMetrics SessionMetrics
+
+	// Example of how you might update the metrics after an API call:
+	// modelMetrics := sessionMetrics.Models["gemini-pro"]
+	// modelMetrics.API.TotalRequests++
+	// ... and so on.
+*/