diff --git a/src/common/optionsPrototype.ts b/src/common/optionsPrototype.ts
new file mode 100644
index 0000000..58ad899
--- /dev/null
+++ b/src/common/optionsPrototype.ts
@@ -0,0 +1,233 @@
+interface BaseOptionConfig {
+  context: "options" | "experiments" | "internal" | "deprecated";
+}
+export type OptionConfig = BaseOptionConfig &
+  (
+    | {
+        defaultValue: any;
+        killSwitchType:
+          | "option"
+          | "experiment"
+          | "ignore"
+          | "deprecated";
+      }
+    | {
+        killSwitchType: "internalKillSwitch";
+      }
+  );
+export type OptionsPrototype = Record<string, OptionConfig>;
+
+export const optionsPrototype: OptionsPrototype = {
+  // Available options:
+  list: {
+    defaultValue: true,
+    context: "options",
+    killSwitchType: "option",
+  },
+  thread: {
+    defaultValue: false,
+    context: "options",
+    killSwitchType: "option",
+  },
+  threadall: {
+    defaultValue: true,
+    context: "options",
+    killSwitchType: "option",
+  },
+  fixedtoolbar: {
+    defaultValue: false,
+    context: "options",
+    killSwitchType: "option",
+  },
+  redirect: {
+    defaultValue: false,
+    context: "options",
+    killSwitchType: "option",
+  },
+  history: {
+    defaultValue: false,
+    context: "options",
+    killSwitchType: "option",
+  },
+  loaddrafts: {
+    defaultValue: false,
+    context: "options",
+    killSwitchType: "option",
+  },
+  increasecontrast: {
+    defaultValue: false,
+    context: "options",
+    killSwitchType: "option",
+  },
+  stickysidebarheaders: {
+    defaultValue: false,
+    context: "options",
+    killSwitchType: "option",
+  },
+  profileindicator: {
+    defaultValue: false,
+    context: "options",
+    killSwitchType: "option",
+  },
+  profileindicatoralt: {
+    defaultValue: false,
+    context: "options",
+    killSwitchType: "option",
+  },
+  profileindicatoralt_months: {
+    defaultValue: 12,
+    context: "options",
+    killSwitchType: "ignore",
+  },
+  ccdarktheme: {
+    defaultValue: false,
+    context: "options",
+    killSwitchType: "option",
+  },
+  ccdarktheme_mode: {
+    defaultValue: "switch",
+    context: "options",
+    killSwitchType: "ignore",
+  },
+  ccforcehidedrawer: {
+    defaultValue: false,
+    context: "options",
+    killSwitchType: "option",
+  },
+  // #!if ['chromium', 'chromium_mv3'].includes(browser_target)
+  ccdragndropfix: {
+    defaultValue: false,
+    context: "options",
+    killSwitchType: "option",
+  },
+  // #!endif
+  batchlock: {
+    defaultValue: false,
+    context: "options",
+    killSwitchType: "option",
+  },
+  enhancedannouncementsdot: {
+    defaultValue: false,
+    context: "options",
+    killSwitchType: "option",
+  },
+  repositionexpandthread: {
+    defaultValue: false,
+    context: "options",
+    killSwitchType: "option",
+  },
+  threadlistavatars: {
+    defaultValue: false,
+    context: "options",
+    killSwitchType: "option",
+  },
+  autorefreshlist: {
+    defaultValue: false,
+    context: "options",
+    killSwitchType: "option",
+  },
+  imagemaxheight: {
+    defaultValue: false,
+    context: "options",
+    killSwitchType: "option",
+  },
+  // #!if ['chromium', 'chromium_mv3'].includes(browser_target)
+  blockdrafts: {
+    defaultValue: false,
+    context: "options",
+    killSwitchType: "option",
+  },
+  // #!endif
+  perforumstats: {
+    defaultValue: false,
+    context: "options",
+    killSwitchType: "option",
+  },
+  interopthreadpage: {
+    defaultValue: false,
+    context: "options",
+    killSwitchType: "option",
+  },
+  interopthreadpage_mode: {
+    defaultValue: "previous",
+    context: "options",
+    killSwitchType: "ignore",
+  },
+  uispacing: {
+    defaultValue: false,
+    context: "options",
+    killSwitchType: "option",
+  },
+  flattenthreads: {
+    defaultValue: false,
+    context: "options",
+    killSwitchType: "option",
+  },
+
+  // Experiments:
+  workflows: {
+    defaultValue: false,
+    context: "experiments",
+    killSwitchType: "experiment",
+  },
+  extrainfo: {
+    defaultValue: false,
+    context: "experiments",
+    killSwitchType: "experiment",
+  },
+  nestedreplies: {
+    defaultValue: false,
+    context: "experiments",
+    killSwitchType: "experiment",
+  },
+
+  // Internal options:
+  ccdarktheme_switch_enabled: {
+    defaultValue: true,
+    context: "internal",
+    killSwitchType: "ignore",
+  },
+  flattenthreads_switch_enabled: {
+    defaultValue: true,
+    context: "internal",
+    killSwitchType: "ignore",
+  },
+
+  // Internal kill switches:
+  killswitch_xhrproxy: {
+    context: "internal",
+    killSwitchType: "internalKillSwitch",
+  },
+
+  // Deprecated options:
+  escalatethreads: {
+    defaultValue: false,
+    context: "deprecated",
+    killSwitchType: "deprecated",
+  },
+  movethreads: {
+    defaultValue: false,
+    context: "deprecated",
+    killSwitchType: "deprecated",
+  },
+  batchduplicate: {
+    defaultValue: false,
+    context: "deprecated",
+    killSwitchType: "deprecated",
+  },
+  smei_sortdirection: {
+    defaultValue: false,
+    context: "deprecated",
+    killSwitchType: "deprecated",
+  },
+  forcemarkasread: {
+    defaultValue: false,
+    context: "deprecated",
+    killSwitchType: "deprecated",
+  },
+  disableunifiedprofiles: {
+    defaultValue: false,
+    context: "deprecated",
+    killSwitchType: "deprecated",
+  },
+};