diff --git a/src/env.ts b/src/env.ts
index b595138..96f5e12 100644
--- a/src/env.ts
+++ b/src/env.ts
@@ -33,6 +33,16 @@ export const config = {
     channelId: requireEnv('GUIDES_CHANNEL_ID'),
     trackerPath: optionalEnv('GUIDES_TRACKER_PATH'),
   },
+  roleA: requireEnv('ROLE_A_ID'),
+  roleB: requireEnv('ROLE_B_ID'),
+  roleC: requireEnv('ROLE_C_ID'),
+  // Add more config sections as needed:
+  // database: {
+  //   url: requireEnv('DATABASE_URL'),
+  // },
+  // api: {
+  //   openaiKey: optionalEnv('OPENAI_API_KEY'),
+  // },
 };
 
 export type Config = typeof config;
diff --git a/src/events/auto-roles.ts b/src/events/auto-roles.ts
new file mode 100644
index 0000000..dabb624
--- /dev/null
+++ b/src/events/auto-roles.ts
@@ -0,0 +1,23 @@
+import { Events } from 'discord.js';
+import { config } from '../env.js';
+import { createEvent } from '../util/events.js';
+import { hasRoles } from '../util/member.js';
+
+export const autoRoleEvent = createEvent(
+  {
+    name: Events.GuildMemberUpdate,
+  },
+  async (_, newMember) => {
+    const hasRoleC = hasRoles(newMember, config.roleC);
+    if (!hasRoleC) {
+      const hasRequiredRoles = hasRoles(newMember, config.roleA, config.roleB);
+      if (hasRequiredRoles) {
+        try {
+          await newMember.roles.add(config.roleC);
+        } catch (error) {
+          console.error(`Failed to add roleC to ${newMember.user.tag}:`, error);
+        }
+      }
+    }
+  }
+);
diff --git a/src/util/member.ts b/src/util/member.ts
new file mode 100644
index 0000000..33adab7
--- /dev/null
+++ b/src/util/member.ts
@@ -0,0 +1,5 @@
+import type { GuildMember } from 'discord.js';
+
+export const hasRoles = (member: GuildMember, ...roles: string[]): boolean => {
+  return roles.every((roleId) => member.roles.cache.has(roleId));
+};