refactor: reorganize scratch files into subdirectories to fix main collision in make check

scratch/json/main.go

@@ -0,0 +1,24 @@
+package main
+
+import (
+	"encoding/json"
+	"fmt"
+)
+
+type Config struct {
+	AllowedTools map[string]bool `json:"allowed_tools"`
+}
+
+func main() {
+	data := []byte(`{"allowed_tools": {"hdn-server": true}}`)
+	var cfg Config
+	err := json.Unmarshal(data, &cfg)
+	if err != nil {
+		fmt.Println(err)
+		return
+	}
+	fmt.Printf("Config: %+v\n", cfg)
+	for w, ok := range cfg.AllowedTools {
+		fmt.Printf("w: %q, ok: %v\n", w, ok)
+	}
+}

scratch/match/main.go

@@ -0,0 +1,15 @@
+package main
+
+import (
+	"fmt"
+	"strings"
+)
+
+func main() {
+	tool := "mcp_hdn-server_weather"
+	w := "hdn-server"
+	match := strings.HasPrefix(tool, "mcp_"+w+"_") ||
+		strings.HasPrefix(tool, "tool_"+w+"_") ||
+		strings.HasPrefix(tool, w+"_")
+	fmt.Printf("Match: %v\n", match)
+}

scratch/sanitize/main.go

@@ -0,0 +1,42 @@
+package main
+
+import (
+	"fmt"
+	"strings"
+)
+
+func sanitizeIdentifierComponent(s string) string {
+	s = strings.ToLower(s)
+	var b strings.Builder
+	b.Grow(len(s))
+	prevUnderscore := false
+	for _, r := range s {
+		isAllowed := (r >= 'a' && r <= 'z') ||
+			(r >= '0' && r <= '9') ||
+			r == '_' || r == '-'
+		if !isAllowed {
+			if !prevUnderscore {
+				b.WriteRune('_')
+				prevUnderscore = true
+			}
+			continue
+		}
+		if r == '_' {
+			if prevUnderscore {
+				continue
+			}
+			prevUnderscore = true
+		} else {
+			prevUnderscore = false
+		}
+		b.WriteRune(r)
+	}
+	result := strings.Trim(b.String(), "_")
+	if result == "" {
+		result = "unnamed"
+	}
+	return result
+}
+func main() {
+	fmt.Println(sanitizeIdentifierComponent("hdn-server"))
+}