diff --git a/Gemfile.lock b/Gemfile.lock
index 26dca2d..8f8259e 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -72,6 +72,9 @@ GEM
     immutable-struct (2.5.0)
     io-console (0.8.2)
     json (2.18.1)
+    json-schema (5.2.2)
+      addressable (~> 2.8)
+      bigdecimal (~> 3.1)
     language_server-protocol (3.17.0.5)
     lino (4.1.0)
       childprocess (~> 5.0.0)
@@ -84,6 +87,8 @@ GEM
       rb-inotify (~> 0.9, >= 0.9.10)
     logger (1.7.0)
     lumberjack (1.4.2)
+    mcp (0.7.1)
+      json-schema (>= 4.1)
     method_source (1.1.0)
     minitest (5.24.1)
     mutex_m (0.2.0)
@@ -99,7 +104,7 @@ GEM
       sawyer (~> 0.9)
     open4 (1.3.4)
     parallel (1.27.0)
-    parser (3.3.10.1)
+    parser (3.3.10.2)
       ast (~> 2.4.1)
       racc
     prism (1.9.0)
@@ -160,10 +165,11 @@ GEM
       diff-lcs (>= 1.2.0, < 2.0)
       rspec-support (~> 3.13.0)
     rspec-support (3.13.7)
-    rubocop (1.84.2)
+    rubocop (1.85.0)
       json (~> 2.3)
       language_server-protocol (~> 3.17.0.2)
       lint_roller (~> 1.1.0)
+      mcp (~> 0.6)
       parallel (~> 1.10)
       parser (>= 3.3.0.2)
       rainbow (>= 2.2.2, < 4.0)