diff --git a/dot_config/opencode/opencode.json b/dot_config/opencode/opencode.json
index d4821f5..c386daa 100644
--- a/dot_config/opencode/opencode.json
+++ b/dot_config/opencode/opencode.json
@@ -166,6 +166,11 @@
         "thunderbird-mcp"
       ]
     },
+    "k6": {
+      "type": "local",
+      "enabled": false,
+      "command": ["k6", "x", "mcp"]
+    },
     "github": {
       "enabled": true,
       "type": "remote",
diff --git a/dot_config/private_fish/functions/no_color.fish b/dot_config/private_fish/functions/no_color.fish
new file mode 100644
index 0000000..69129c7
--- /dev/null
+++ b/dot_config/private_fish/functions/no_color.fish
@@ -0,0 +1,4 @@
+function no_color --description 'Disable terminal color theming for this Fish session'
+    set -gx NO_COLOR 1
+    fish_config theme choose none
+end