diff --git a/backend/internal/service/bedrock_request.go b/backend/internal/service/bedrock_request.go
index beb61cd7af..f7a5d0c1c9 100644
--- a/backend/internal/service/bedrock_request.go
+++ b/backend/internal/service/bedrock_request.go
@@ -471,11 +471,11 @@ func parseAnthropicBetaHeader(header string) []string {
 // 参考: AWS Bedrock 官方文档 + litellm anthropic_beta_headers_config.json
 // 更新策略: 当 AWS Bedrock 新增支持的 beta token 时需同步更新此白名单
 var bedrockSupportedBetaTokens = map[string]bool{
-	"computer-use-2025-01-24":            true,
-	"computer-use-2025-11-24":            true,
-	"context-1m-2025-08-07":              true,
-	"context-management-2025-06-27":      true, // compaction + clear_thinking，AWS 文档已支持
-	"compact-2026-01-12":                 true, // 官方支持，仅 InvokeModel API（Opus 4.6+）
+	"computer-use-2025-01-24":                true,
+	"computer-use-2025-11-24":                true,
+	"context-1m-2025-08-07":                  true,
+	"context-management-2025-06-27":          true, // compaction + clear_thinking，AWS 文档已支持
+	"compact-2026-01-12":                     true, // 官方支持，仅 InvokeModel API（Opus 4.6+）
 	"fine-grained-tool-streaming-2025-05-14": true, // AWS Tool Use 文档已支持
 	// "interleaved-thinking-2025-05-14": false, // 无官方文档支持
 	"tool-search-tool-2025-10-19": true,
diff --git a/backend/internal/service/bedrock_request_test.go b/backend/internal/service/bedrock_request_test.go
index c5b71da74f..e466c82ca9 100644
--- a/backend/internal/service/bedrock_request_test.go
+++ b/backend/internal/service/bedrock_request_test.go
@@ -411,7 +411,7 @@ func TestPrepareBedrockRequestBodyWithTokens_ContextManagementRequiresSupportedB
 		assert.Equal(t, int64(100), gjson.GetBytes(result, "max_tokens").Int())
 	})
 
-	t.Run("filters explicit unsupported context-management beta and strips field", func(t *testing.T) {
+	t.Run("keeps supported context-management beta and retains field", func(t *testing.T) {
 		input := `{
 			"messages":[{"role":"user","content":"hi"}],
 			"max_tokens":100,
@@ -426,8 +426,8 @@ func TestPrepareBedrockRequestBodyWithTokens_ContextManagementRequiresSupportedB
 		)
 		require.NoError(t, err)
 
-		assert.False(t, gjson.GetBytes(result, "context_management").Exists())
-		assert.Equal(t, []string{"context-1m-2025-08-07"}, bedrockAnthropicBetaNames(result))
+		assert.True(t, gjson.GetBytes(result, "context_management").Exists())
+		assert.Equal(t, []string{bedrockContextManagementBetaToken, "context-1m-2025-08-07"}, bedrockAnthropicBetaNames(result))
 	})
 }
 
diff --git a/backend/internal/service/error_passthrough_runtime_test.go b/backend/internal/service/error_passthrough_runtime_test.go
index b9e882cc90..73a4bfab19 100644
--- a/backend/internal/service/error_passthrough_runtime_test.go
+++ b/backend/internal/service/error_passthrough_runtime_test.go
@@ -298,7 +298,8 @@ func TestHandleErrorResponse_PassthroughRuleSetsCommitted(t *testing.T) {
 	assert.Equal(t, http.StatusBadRequest, rec.Code)
 	var payload map[string]any
 	require.NoError(t, json.Unmarshal(rec.Body.Bytes(), &payload))
-	errField := payload["error"].(map[string]any)
+	errField, ok := payload["error"].(map[string]any)
+	require.True(t, ok, "payload[\"error\"] should be map[string]any")
 	assert.Equal(t, "参数错误", errField["message"])
 }