diff --git a/src/Knowledge/KeywordMapper.php b/src/Knowledge/KeywordMapper.php
deleted file mode 100644
index d2ead79..0000000
--- a/src/Knowledge/KeywordMapper.php
+++ /dev/null
@@ -1,35 +0,0 @@
-<?php
-
-declare(strict_types=1);
-
-namespace App\Knowledge;
-
-/**
- * KeywordMapper
- *
- * Expands short or ambiguous prompts into richer semantic variants
- * before they are passed into retrieval or embedding pipelines.
- *
- * This is a direct port of prompt_mapping.py.
- */
-final class KeywordMapper
-{
-    private array $map = [
-        'ki'      => 'künstliche Intelligenz, AI, Projekte, Modelle, Agenten, ki',
-        'shop'    => 'Shopware, Onlineshop, Webshop, Commerce-System',
-        'shops'   => 'Shopware, Webshops, Verkaufsplattformen',
-        'agentur' => 'Agentur, Firma, Unternehmen, mitho media',
-        'api'     => 'Schnittstelle, API, Anbindung, Integration',
-        'plugin'  => 'Shopware Plugin, Erweiterung, Modul, Funktion',
-    ];
-
-    /**
-     * Maps a raw prompt to an expanded semantic variant if applicable.
-     */
-    public function map(string $prompt): string
-    {
-        $key = mb_strtolower(trim($prompt));
-
-        return $this->map[$key] ?? $prompt;
-    }
-}
diff --git a/src/Knowledge/KeywordSimilarity.php b/src/Knowledge/KeywordSimilarity.php
deleted file mode 100644
index 84a44ba..0000000
--- a/src/Knowledge/KeywordSimilarity.php
+++ /dev/null
@@ -1,87 +0,0 @@
-<?php
-
-declare(strict_types=1);
-
-namespace App\Knowledge;
-
-/**
- * KeywordSimilarity
- *
- * Deterministic and fault-tolerant comparison of two keywords.
- * Returns a similarity score between 0.0 and 1.0.
- *
- * Design goals:
- * - index.json remains unchanged
- * - comparison logic is intelligent (typos, phonetics)
- * - no alias or synonym lists
- * - no LLM dependency
- */
-final class KeywordSimilarity
-{
-    /**
-     * Compare a query token with an index keyword.
-     *
-     * @param string $queryToken   Token from user input
-     * @param string $indexKeyword Keyword from index.json
-     *
-     * @return float Similarity score (0.0 – 1.0)
-     */
-    public static function compare(string $queryToken, string $indexKeyword): float
-    {
-        $a = self::normalize($queryToken);
-        $b = self::normalize($indexKeyword);
-
-        // Guard: ignore empty or very short tokens
-        if ($a === '' || $b === '' || mb_strlen($a) < 3 || mb_strlen($b) < 3) {
-            return 0.0;
-        }
-
-        // 1. Exact match
-        if ($a === $b) {
-            return 1.0;
-        }
-
-        // 2. Phonetic comparison (metaphone)
-        // Useful for: showpare → shopware, shopvare → shopware
-        if (metaphone($a) === metaphone($b)) {
-            return 0.85;
-        }
-
-        // 3. Edit distance comparison (only for longer words)
-        if (mb_strlen($a) >= 6 && mb_strlen($b) >= 6) {
-            $distance = levenshtein($a, $b);
-
-            if ($distance === 1) {
-                return 0.9;
-            }
-
-            if ($distance === 2) {
-                return 0.8;
-            }
-        }
-
-        // No relevant match
-        return 0.0;
-    }
-
-    /**
-     * Normalize a keyword to ensure stable comparison.
-     */
-    private static function normalize(string $value): string
-    {
-        $value = mb_strtolower(trim($value));
-
-        // Remove non-alphanumeric characters
-        $value = preg_replace('/[^\p{L}\p{N}]/u', '', $value) ?? '';
-
-        // Normalize German umlauts
-        $map = [
-            'ä' => 'ae',
-            'ö' => 'oe',
-            'ü' => 'ue',
-            'ß' => 'ss',
-        ];
-
-        return strtr($value, $map);
-    }
-}