diff --git a/pkg/agent/loop.go b/pkg/agent/loop.go
index 72514884e..00e23b2ce 100644
--- a/pkg/agent/loop.go
+++ b/pkg/agent/loop.go
@@ -115,7 +115,10 @@ func registerSharedTools(
 			TavilyEnabled:        cfg.Tools.Web.Tavily.Enabled,
 			DuckDuckGoMaxResults: cfg.Tools.Web.DuckDuckGo.MaxResults,
 			DuckDuckGoEnabled:    cfg.Tools.Web.DuckDuckGo.Enabled,
-			PerplexityAPIKeys:    config.MergeAPIKeys(cfg.Tools.Web.Perplexity.APIKey, cfg.Tools.Web.Perplexity.APIKeys),
+			PerplexityAPIKeys: config.MergeAPIKeys(
+				cfg.Tools.Web.Perplexity.APIKey,
+				cfg.Tools.Web.Perplexity.APIKeys,
+			),
 			PerplexityMaxResults: cfg.Tools.Web.Perplexity.MaxResults,
 			PerplexityEnabled:    cfg.Tools.Web.Perplexity.Enabled,
 			GLMSearchAPIKey:      cfg.Tools.Web.GLMSearch.APIKey,
diff --git a/pkg/config/config_test.go b/pkg/config/config_test.go
index 6979868b1..c29a41e36 100644
--- a/pkg/config/config_test.go
+++ b/pkg/config/config_test.go
@@ -293,7 +293,7 @@ func TestDefaultConfig_WebTools(t *testing.T) {
 	if cfg.Tools.Web.Brave.MaxResults != 5 {
 		t.Error("Expected Brave MaxResults 5, got ", cfg.Tools.Web.Brave.MaxResults)
 	}
-	if cfg.Tools.Web.Brave.APIKeys != "" {
+	if len(cfg.Tools.Web.Brave.APIKeys) != 0 {
 		t.Error("Brave API key should be empty by default")
 	}
 	if cfg.Tools.Web.DuckDuckGo.MaxResults != 5 {
diff --git a/pkg/config/defaults.go b/pkg/config/defaults.go
index bf86fdd1b..a3283c006 100644
--- a/pkg/config/defaults.go
+++ b/pkg/config/defaults.go
@@ -332,13 +332,13 @@ func DefaultConfig() *Config {
 				Brave: BraveConfig{
 					Enabled:    false,
 					APIKey:     "",
-					APIKeys:    []string{"YOUR_BRAVE_API_KEY"},
+					APIKeys:    nil,
 					MaxResults: 5,
 				},
 				Tavily: TavilyConfig{
 					Enabled:    false,
 					APIKey:     "",
-					APIKeys:    []string{"YOUR_TAVILY_API_KEY"},
+					APIKeys:    nil,
 					MaxResults: 5,
 				},
 				DuckDuckGo: DuckDuckGoConfig{
@@ -348,7 +348,7 @@ func DefaultConfig() *Config {
 				Perplexity: PerplexityConfig{
 					Enabled:    false,
 					APIKey:     "",
-					APIKeys:    []string{"YOUR_PERPLEXITY_API_KEY"},
+					APIKeys:    nil,
 					MaxResults: 5,
 				},
 				GLMSearch: GLMSearchConfig{
diff --git a/pkg/migrate/sources/openclaw/openclaw_config.go b/pkg/migrate/sources/openclaw/openclaw_config.go
index 45727c81b..e0f497752 100644
--- a/pkg/migrate/sources/openclaw/openclaw_config.go
+++ b/pkg/migrate/sources/openclaw/openclaw_config.go
@@ -717,18 +717,18 @@ type WebToolsConfig struct {
 }
 
 type BraveConfig struct {
-	Enabled    bool   `json:"enabled"`
-	APIKey     string `json:"api_key"`
+	Enabled    bool     `json:"enabled"`
+	APIKey     string   `json:"api_key"`
 	APIKeys    []string `json:"api_keys"`
-	MaxResults int    `json:"max_results"`
+	MaxResults int      `json:"max_results"`
 }
 
 type TavilyConfig struct {
-	Enabled    bool   `json:"enabled"`
-	APIKey     string `json:"api_key"`
+	Enabled    bool     `json:"enabled"`
+	APIKey     string   `json:"api_key"`
 	APIKeys    []string `json:"api_keys"`
-	BaseURL    string `json:"base_url"`
-	MaxResults int    `json:"max_results"`
+	BaseURL    string   `json:"base_url"`
+	MaxResults int      `json:"max_results"`
 }
 
 type DuckDuckGoConfig struct {
@@ -737,10 +737,10 @@ type DuckDuckGoConfig struct {
 }
 
 type PerplexityConfig struct {
-	Enabled    bool   `json:"enabled"`
-	APIKey     string `json:"api_key"`
+	Enabled    bool     `json:"enabled"`
+	APIKey     string   `json:"api_key"`
 	APIKeys    []string `json:"api_keys"`
-	MaxResults int    `json:"max_results"`
+	MaxResults int      `json:"max_results"`
 }
 
 type CronConfig struct {
diff --git a/pkg/tools/web.go b/pkg/tools/web.go
index 209b49706..6745b535f 100644
--- a/pkg/tools/web.go
+++ b/pkg/tools/web.go
@@ -604,7 +604,11 @@ func NewWebSearchTool(opts WebSearchToolOptions) (*WebSearchTool, error) {
 		if err != nil {
 			return nil, fmt.Errorf("failed to create HTTP client for Perplexity: %w", err)
 		}
-		provider = &PerplexitySearchProvider{keyPool: NewAPIKeyPool(opts.PerplexityAPIKeys), proxy: opts.Proxy, client: client}
+		provider = &PerplexitySearchProvider{
+			keyPool: NewAPIKeyPool(opts.PerplexityAPIKeys),
+			proxy:   opts.Proxy,
+			client:  client,
+		}
 		if opts.PerplexityMaxResults > 0 {
 			maxResults = opts.PerplexityMaxResults
 		}
diff --git a/pkg/tools/web_test.go b/pkg/tools/web_test.go
index 453fbbaf6..86f7e512e 100644
--- a/pkg/tools/web_test.go
+++ b/pkg/tools/web_test.go
@@ -269,7 +269,11 @@ func TestWebTool_WebSearch_NoApiKey(t *testing.T) {
 
 // TestWebTool_WebSearch_MissingQuery verifies error handling for missing query
 func TestWebTool_WebSearch_MissingQuery(t *testing.T) {
-	tool, err := NewWebSearchTool(WebSearchToolOptions{BraveEnabled: true, BraveAPIKeys: []string{"test-key"}, BraveMaxResults: 5})
+	tool, err := NewWebSearchTool(WebSearchToolOptions{
+		BraveEnabled:    true,
+		BraveAPIKeys:    []string{"test-key"},
+		BraveMaxResults: 5,
+	})
 	if err != nil {
 		t.Fatalf("Unexpected error: %v", err)
 	}