diff --git a/docs/explore.xqbk b/docs/explore.xqbk
index 9854d1c..bd9d2ba 100644
--- a/docs/explore.xqbk
+++ b/docs/explore.xqbk
@@ -1 +1 @@
-{"cells":[{"kind":2,"language":"xquery","value":"(:<:)\r\n\r\nimport module namespace docs=\"lsp/docs\" at \"/srv/basex/webapp/lsp/docs.xqm\";"},{"kind":2,"language":"xquery","value":"ws:ids()"},{"kind":2,"language":"xquery","value":"let $sock:=foot(ws:ids())\r\nlet $f:=docs:list($sock)\r\nlet $t:=docs:get($sock,$f,\"textDocument\")\r\nreturn $t"},{"kind":2,"language":"xquery","value":"let $sock:=foot(ws:ids())\r\nlet $f:=docs:list($sock)\r\nlet $t:=docs:get($sock,$f,\"parse\")\r\nreturn $t/self::ERROR"},{"kind":2,"language":"xquery","value":"let $sock:=foot(ws:ids())\r\nlet $f:=docs:list($sock)\r\nlet $t:=docs:get($sock,$f,\"textDocument\")?text\r\nreturn string-to-codepoints($t)=>index-of(10)"}]}
\ No newline at end of file
+{"cells":[{"kind":2,"language":"xquery","value":"(:<:)\r\n\r\nimport module namespace docs=\"lsp/docs\" at \"/srv/basex/webapp/lsp/docs.xqm\";"},{"kind":2,"language":"xquery","value":"ws:ids()"},{"kind":2,"language":"xquery","value":"let $sock:=foot(ws:ids())\r\nlet $f:=docs:list($sock)\r\nlet $t:=docs:get($sock,$f,\"textDocument\")\r\nreturn map:put($t,\"text\",substring($t?text,1,15))"},{"kind":2,"language":"xquery","value":"let $sock:=foot(ws:ids())\r\nlet $f:=docs:list($sock)\r\nlet $t:=docs:get($sock,$f,\"parse\")\r\nreturn $t/self::ERROR"},{"kind":2,"language":"xquery","value":"let $sock:=foot(ws:ids())\r\nlet $f:=docs:list($sock)\r\nlet $t:=docs:get($sock,$f,\"textDocument\")?text\r\nreturn $t"}]}
\ No newline at end of file
diff --git a/webapp/lsp/lsp-diags.xqm b/webapp/lsp/lsp-diags.xqm
index 247df30..7de6461 100644
--- a/webapp/lsp/lsp-diags.xqm
+++ b/webapp/lsp/lsp-diags.xqm
@@ -16,7 +16,9 @@ actions⁠?: readonly Action[] An optional array of actions that can be taken on
 declare record lsp-diags:nostic(
   range as pos:Range,
   severity as  xs:integer, (: enum('error', 'hint', 'info', 'warning') :)
-  message as xs:string
+  message as xs:string,
+  code? as xs:string,
+  source as xs:string:="xquery"
 );
 
 declare variable $lsp-diags:severities:={
@@ -43,6 +45,8 @@ as map(*){
 
 (:~ 
 <ERROR b="10819" e="10820" o="234" s="43">syntax error, found '}' while expecting [S,'else'] at line 290, column 3: ...} }; ? return bookmark info for children of $outlineItem as s...</ERROR>
+ assert.equal(markers[0].code, 'XPST0003', 'parse error');
+        assert.equal(markers[1].code, 'XQLT0001', 'previous parse error');
 :)
 declare function lsp-diags:parse-error($text as xs:string, $xml as element(ERROR))
 as map(*)*{
@@ -52,12 +56,13 @@ return (
 lsp-diags:nostic(pos:Range(pos:toPosition($text, $xml/@b), 
                           pos:toPosition($text, $xml/@e)),
                $lsp-diags:severities('error'),
-               $dmesg),
+               $dmesg,code:="XPST0003"),
 
 lsp-diags:nostic(pos:Range(pos:toPosition($text, $xml/@e +1 ), 
                           pos:toPosition($text, string-length($text)-1)),
                  $lsp-diags:severities('warning'),
-                 "Unparsed due to previous parser error.")
+                 "Unparsed due to previous parser error.",
+                 code:="XQLT0001")
 )
 };