diff --git a/javascript/tagAutocomplete.js b/javascript/tagAutocomplete.js
index d3d0ec9..3bac509 100644
--- a/javascript/tagAutocomplete.js
+++ b/javascript/tagAutocomplete.js
@@ -669,9 +669,105 @@ async function autocomplete(textArea, prompt, fixedTag = null) {
         let umiSubPrompts = [...prompt.matchAll(UMI_PROMPT_REGEX)];
         
         let umiTags = [];
+        let umiTagsWithOperators = []
+
+        const insertAt = (str,char,pos) => str.slice(0,pos) + char + str.slice(pos);
+
         umiSubPrompts.forEach(umiSubPrompt => {
             umiTags = umiTags.concat([...umiSubPrompt[0].matchAll(UMI_TAG_REGEX)].map(x => x[1].toLowerCase()));
+            
+            const start = umiSubPrompt.index;
+            const end = umiSubPrompt.index + umiSubPrompt[0].length;
+            if (textArea.selectionStart >= start && textArea.selectionStart <= end) {
+                umiTagsWithOperators = insertAt(umiSubPrompt[0], '###', textArea.selectionStart - start);
+            }
         });
+
+        const promptSplitToTags = umiTagsWithOperators.replace(']###[', '][').split("][");
+
+        const clean = (str) => str
+            .replaceAll('>', '')
+            .replaceAll('<', '')
+            .replaceAll('[', '')
+            .replaceAll(']', '')
+            .trim();
+
+        const matches = promptSplitToTags.reduce((acc, curr) => {
+            isOptional = curr.includes("|");
+            isNegative = curr.startsWith("--");
+            let out;
+            if (isOptional) {
+                out = {
+                    hasCursor: curr.includes("###"),
+                    tags: clean(curr).split('|').map(x => ({ 
+                        hasCursor: x.includes("###"), 
+                        isNegative: x.startsWith("--"),
+                        tag: clean(x).replaceAll("###", '').replaceAll("--", '')
+                    }))
+                };
+                acc.optional.push(out);
+                acc.all.push(...out.tags.map(x => x.tag));
+            } else if (isNegative) {
+                out = {
+                    hasCursor: curr.includes("###"),
+                    tags: clean(curr).replaceAll("###", '').split('|'),
+                };
+                out.tags = out.tags.map(x => x.startsWith("--") ? x.substring(2) : x);
+                acc.negative.push(out);
+                acc.all.push(...out.tags);
+            } else {
+                out = {
+                    hasCursor: curr.includes("###"),
+                    tags: clean(curr).replaceAll("###", '').split('|'),
+                };
+                acc.positive.push(out);
+                acc.all.push(...out.tags);
+            }
+            return acc;
+        }, { positive: [], negative: [], optional: [], all: [] });
+
+        console.log({ matches })
+
+        const filteredWildcards = (tagword) => {
+            const wildcards = yamlWildcards.filter(x => {
+                let tags = x[1];
+                const matchesNeg =
+                    matches.negative.length === 0
+                    || matches.negative.every(x => 
+                        x.hasCursor 
+                        || x.tags.every(t => !tags[t])
+                    );
+                if (!matchesNeg) return false;
+                const matchesPos =
+                    matches.positive.length === 0
+                    || matches.positive.every(x =>
+                        x.hasCursor
+                        || x.tags.every(t => tags[t])
+                    );
+                if (!matchesPos) return false;
+                const matchesOpt =
+                    matches.optional.length === 0
+                    || matches.optional.some(x =>
+                        x.tags.some(t =>
+                            t.hasCursor
+                            || t.isNegative
+                                ? !tags[t.tag]
+                                : tags[t.tag]
+                    ));
+                if (!matchesOpt) return false;
+                return true;
+            }).reduce((acc, val) => {
+                Object.keys(val[1]).forEach(tag => acc[tag] = acc[tag] + 1 || 1);
+                return acc;
+            }, {});
+
+            return Object.entries(wildcards)
+                .sort((a, b) => b[1] - a[1])
+                .filter(x =>
+                    x[0] === tagword
+                    || !matches.all.includes(x[0])
+                );
+        }
         
         if (umiTags.length > 0) {
             // Get difference for subprompt
@@ -682,33 +778,33 @@ async function autocomplete(textArea, prompt, fixedTag = null) {
             // Show all condition
             let showAll = tagword.endsWith("[") || tagword.endsWith("[--") || tagword.endsWith("|");
 
-            console.log(tagword, umiTags, diff, tagCountChange)
-
             // Exit early if the user closed the bracket manually
             if ((!diff || diff.length === 0 || (diff.length === 1 && tagCountChange < 0)) && !showAll) {
                 if (!hideBlocked) hideResults(textArea);
                 return;
             }
 
-            let umiTagword = diff[0];
+            let umiTagword = diff[0] || '';
             let tempResults = [];
             if (umiTagword && umiTagword.length > 0) {
                 umiTagword = umiTagword.toLowerCase().replace(/[\n\r]/g, "");
                 originalTagword = tagword;
                 tagword = umiTagword;
-
+                let filteredWildcardsSorted = filteredWildcards(umiTagword);
                 let searchRegex = new RegExp(`(^|[^a-zA-Z])${escapeRegExp(umiTagword)}`, 'i')
                 let baseFilter = x => x[0].toLowerCase().search(searchRegex) > -1;
                 let spaceIncludeFilter = x => x[0].toLowerCase().replaceAll(" ", "_").search(searchRegex) > -1;
-                tempResults = yamlWildcards.filter(x => baseFilter(x) || spaceIncludeFilter(x)) // Filter by tagword
+                tempResults = filteredWildcardsSorted.filter(x => baseFilter(x) || spaceIncludeFilter(x)) // Filter by tagword
                 results = tempResults.map(x => [x[0].trim(), "yamlWildcard", x[1]]); // Mark as yaml wildcard
             } else if (showAll) {
-                results = yamlWildcards.map(x => [x[0].trim(), "yamlWildcard", x[1]]); // Mark as yaml wildcard
+                let filteredWildcardsSorted = filteredWildcards("");
+                results = filteredWildcardsSorted.map(x => [x[0].trim(), "yamlWildcard", x[1]]); // Mark as yaml wildcard
                 originalTagword = tagword;
                 tagword = "";
             }
         } else {
-            results = yamlWildcards.map(x => [x[0].trim(), "yamlWildcard", x[1]]); // Mark as yaml wildcard
+            let filteredWildcardsSorted = filteredWildcards("");
+            results = filteredWildcardsSorted.map(x => [x[0].trim(), "yamlWildcard", x[1]]); // Mark as yaml wildcard
             originalTagword = tagword;
             tagword = "";
         }
@@ -770,6 +866,7 @@ async function autocomplete(textArea, prompt, fixedTag = null) {
 
     // Guard for empty results
     if (!results.length) {
+        console.log('No results found for "' + tagword + '"');
         hideResults(textArea);
         return;
     }
@@ -907,7 +1004,16 @@ async function setup() {
         try {
             let yamlTags = (await readFile(`${tagBasePath}/temp/wcet.txt?${new Date().getTime()}`)).split("\n");
             // Split into tag, count pairs
-            yamlWildcards = yamlTags.map(x => x.trim().split(","));
+            yamlWildcards = yamlTags.map(x => x
+                .trim()
+                .split(","))
+                .map(([i, ...rest]) => [
+                    i,
+                    rest.reduce((a, b) => {
+                        a[b.toLowerCase()] = true;
+                        return a;
+                    }, {}),
+                ]);
         } catch (e) {
             console.error("Error loading yaml wildcards: " + e);
         }
diff --git a/scripts/tag_autocomplete_helper.py b/scripts/tag_autocomplete_helper.py
index d1a2435..d1012bb 100644
--- a/scripts/tag_autocomplete_helper.py
+++ b/scripts/tag_autocomplete_helper.py
@@ -61,16 +61,14 @@ def get_ext_wildcard_tags():
     for path in WILDCARD_EXT_PATHS:
         yaml_files.extend(p for p in path.rglob("*.yml"))
         yaml_files.extend(p for p in path.rglob("*.yaml"))
+    count = 0
     for path in yaml_files:
         try:
             with open(path, encoding="utf8") as file:
                 data = yaml.safe_load(file)
                 for item in data:
-                    for _, tag in enumerate(data[item]['Tags']):
-                        if tag not in wildcard_tags:
-                            wildcard_tags[tag] = 1
-                        else:
-                            wildcard_tags[tag] += 1
+                    wildcard_tags[count] = ','.join(data[item]['Tags'])
+                    count += 1
         except yaml.YAMLError as exc:
             print(exc)
     # Sort by count