Merge pull request #1207 from afjcjsbx/feat/debug-mode-no-truncate

feat: no-truncate param for debug

pkg/agent/context.go

@@ -16,6 +16,7 @@ import (
 	"github.com/sipeed/picoclaw/pkg/logger"
 	"github.com/sipeed/picoclaw/pkg/providers"
 	"github.com/sipeed/picoclaw/pkg/skills"
+	"github.com/sipeed/picoclaw/pkg/utils"
 )
 
 type ContextBuilder struct {
@@ -538,10 +539,7 @@ func (cb *ContextBuilder) BuildMessages(
 		})
 
 	// Log preview of system prompt (avoid logging huge content)
-	preview := fullSystemPrompt
-	if len(preview) > 500 {
-		preview = preview[:500] + "... (truncated)"
-	}
+	preview := utils.Truncate(fullSystemPrompt, 500)
 	logger.DebugCF("agent", "System prompt preview",
 		map[string]any{
 			"preview": preview,

pkg/utils/string.go

@@ -2,9 +2,18 @@ package utils
 
 import (
 	"strings"
+	"sync/atomic"
 	"unicode"
 )
 
+// Global variable to disable truncation
+var disableTruncation atomic.Bool
+
+// SetDisableTruncation globally enables or disables string truncation
+func SetDisableTruncation(enabled bool) {
+	disableTruncation.Store(enabled)
+}
+
 // SanitizeMessageContent removes Unicode control characters, format characters (RTL overrides,
 // zero-width characters), and other non-graphic characters that could confuse an LLM
 // or cause display issues in the agent UI.
@@ -30,6 +39,10 @@ func SanitizeMessageContent(input string) string {
 // Handles multi-byte Unicode characters properly.
 // If the string is truncated, "..." is appended to indicate truncation.
 func Truncate(s string, maxLen int) string {
+	// If the no-truncate flag is active, it returns the full string
+	if disableTruncation.Load() {
+		return s
+	}
 	if maxLen <= 0 {
 		return ""
 	}