diff --git a/package.json b/package.json
index 41dd0ef..78012d7 100644
--- a/package.json
+++ b/package.json
@@ -24,9 +24,9 @@
   "dependencies": {
     "@effect-http/client": "^0.26.1",
     "@effect/data": "^0.12.2",
-    "@effect/io": "^0.25.12",
+    "@effect/io": "^0.25.13",
     "@effect/stream": "^0.21.1",
-    "dfx": "^0.45.8",
+    "dfx": "^0.45.9",
     "dotenv": "^16.0.3",
     "openai": "^3.2.1"
   }
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 73b02e1..5b77b55 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -8,14 +8,14 @@ dependencies:
     specifier: ^0.12.2
     version: 0.12.2
   '@effect/io':
-    specifier: ^0.25.12
-    version: 0.25.12
+    specifier: ^0.25.13
+    version: 0.25.13
   '@effect/stream':
     specifier: ^0.21.1
     version: 0.21.1
   dfx:
-    specifier: ^0.45.8
-    version: 0.45.8
+    specifier: ^0.45.9
+    version: 0.45.9
   dotenv:
     specifier: ^16.0.3
     version: 16.0.3
@@ -43,7 +43,7 @@ packages:
     resolution: {integrity: sha512-QVT5PWM4t0PmTyHMvlK12mzULQ4NEIhE8Kw1/Zdcm/7AoBSUzJzEj2Tbdg1EL3OJlDnNjZS6zahW9jcckkXvJQ==}
     dependencies:
       '@effect/data': 0.12.2
-      '@effect/io': 0.25.12
+      '@effect/io': 0.25.13
       '@effect/schema': 0.19.3
       '@effect/stream': 0.21.1
     dev: false
@@ -52,8 +52,8 @@ packages:
     resolution: {integrity: sha512-bmWRTcsSRG1FlBswT+D8SxW6r3c4B3pKJrjYfitCD03tXHnup5gLHaWqbFgIjiyYITS+UsJRRjVrNxvyGG4ZNQ==}
     dev: false
 
-  /@effect/io@0.25.12:
-    resolution: {integrity: sha512-hZDAVq8UENvfptp4yZczU+33SvrqqreD5SSAbZfv3CYNRdtmyKiPrb5pjBJL52p9Br7Ka0Akvnm6KMkSM4JgGA==}
+  /@effect/io@0.25.13:
+    resolution: {integrity: sha512-NdZFSaNbG6AN8bzSAPdmi95AXgHWr4dH58R8viqbFBb0zmfQ/PQq+5XEsC++qy/qpT/ZLzpvJJWhW9jf1atq2g==}
     dependencies:
       '@effect/data': 0.12.2
     dev: false
@@ -62,7 +62,7 @@ packages:
     resolution: {integrity: sha512-jR7o19HBX7PBYRLV1G6ZlM90giRe+lZkA6BqVNamkhNfVsHU4MnGr2lqM2H4fy4MgR744GGXuxCDjVdydkMvAw==}
     dependencies:
       '@effect/data': 0.12.2
-      '@effect/io': 0.25.12
+      '@effect/io': 0.25.13
       fast-check: 3.9.0
     dev: false
 
@@ -70,7 +70,7 @@ packages:
     resolution: {integrity: sha512-x227xIB+PC/xaz4R3RYkjg2Z0sw5Fgkt5hfxXeGHpKThhmqVEeIXjd0v04pcoz2lJtStcvWL5Wuh/Z8HP3Hw/Q==}
     dependencies:
       '@effect/data': 0.12.2
-      '@effect/io': 0.25.12
+      '@effect/io': 0.25.13
     dev: false
 
   /@types/node@20.2.3:
@@ -119,12 +119,12 @@ packages:
     engines: {node: '>=0.4.0'}
     dev: false
 
-  /dfx@0.45.8:
-    resolution: {integrity: sha512-DzUTrnyhYzVkNdFKnx2OswaQME9vBBQyNomnDSu7dXyRKeKmraJ/0O7BKeYiQ77qNH5Ap9O7JqLCZ2dYp9C/9g==}
+  /dfx@0.45.9:
+    resolution: {integrity: sha512-eaTZ8usr9S1AfGXpQDmpzWAWDRVgIjc074nitYkhHWI7jwRvgd01CYy1tuGwhY2RcsaRqe7dNpUFVGzvo2hVqg==}
     dependencies:
       '@effect-http/client': 0.26.1
       '@effect/data': 0.12.2
-      '@effect/io': 0.25.12
+      '@effect/io': 0.25.13
       '@effect/stream': 0.21.1
       tweetnacl: 1.0.3
     optionalDependencies:
diff --git a/src/Summarizer.ts b/src/Summarizer.ts
index af68326..71e071e 100644
--- a/src/Summarizer.ts
+++ b/src/Summarizer.ts
@@ -82,6 +82,7 @@ const make = Effect.gen(function* (_) {
     channel: Discord.Channel,
     thread: Discord.Channel,
     messages: Chunk.Chunk<Discord.Message>,
+    small: boolean,
   ) =>
     Effect.map(
       Effect.forEachParWithIndex(messages, (message, index) => {
@@ -94,7 +95,7 @@ const make = Effect.gen(function* (_) {
             index => [Chunk.unsafeGet(messages, index), index + 1] as const,
           ),
         )
-        return summarizeMessage(thread, index + 1, message, reply)
+        return summarizeMessage(thread, index + 1, message, reply, small)
       }),
       messageContent =>
         `# ${thread.name}
@@ -112,18 +113,27 @@ ${messageContent.join("\n\n")}`,
     index: number,
     message: Discord.Message,
     replyTo: Option.Option<readonly [Discord.Message, number]>,
+    small: boolean,
   ) =>
     Effect.gen(function* (_) {
       const user = message.author
       const member = yield* _(members.get(thread.guild_id!, message.author.id))
       const username = member.nick ?? user.username
-      const content = `${index}: **${username}**${Option.match(
+
+      const smallOpen = small ? "<small>" : ""
+      const smallClose = small ? "</small>" : ""
+
+      const reply = Option.match(
         replyTo,
         () => "",
         ([, index]) => ` (replying to \\#${index})`,
-      )} <small>&mdash; ${new Date(
+      )
+
+      const header = `${smallOpen}${smallOpen}${index}: **${username}**${reply} ${smallOpen}&mdash; ${new Date(
         message.timestamp,
-      ).toUTCString()}</small><br />
+      ).toUTCString()}${smallClose}${smallClose}${smallClose}`
+
+      const content = `${header}<br />
 ${message.content
   .replace(/```ts\b/g, "```typescript")
   .replace(/^```/, "\n```")
@@ -156,6 +166,7 @@ ${message.content
   const followUpResponse = (
     context: Discord.Interaction,
     channel: Discord.Channel,
+    small: boolean,
   ) =>
     pipe(
       Effect.all({
@@ -168,7 +179,7 @@ ${message.content
         ),
       ),
       Effect.bind("summary", ({ parentChannel, messages }) =>
-        summarize(parentChannel, channel, messages),
+        summarize(parentChannel, channel, messages, small),
       ),
       Effect.tap(({ summary }) => {
         const formData = new FormData()
@@ -205,29 +216,44 @@ ${message.content
     {
       name: "summarize",
       description: "Create a summary of the current thread",
+      options: [
+        {
+          type: Discord.ApplicationCommandOptionType.BOOLEAN,
+          name: "small",
+          description: "Add <small> tags to the message headers",
+          required: false,
+        },
+      ],
     },
-    pipe(
-      Effect.all({ context: Ix.Interaction }),
-      Effect.bind("channel", ({ context }) =>
-        channels.get(context.guild_id!, context.channel_id!),
-      ),
-      Effect.filterOrFail(
-        ({ channel }) => channel.type === Discord.ChannelType.PUBLIC_THREAD,
-        () => new NotInThreadError(),
-      ),
-      Effect.tap(({ context, channel }) =>
-        Effect.forkIn(followUpResponse(context, channel), scope),
-      ),
-      Effect.as(
-        Ix.response({
-          type: Discord.InteractionCallbackType.CHANNEL_MESSAGE_WITH_SOURCE,
-          data: {
-            content: "Creating summary...",
-            flags: Discord.MessageFlag.EPHEMERAL,
-          },
+    ix =>
+      pipe(
+        Effect.all({
+          context: Ix.Interaction,
+          small: Effect.map(
+            ix.optionValueOptional("small"),
+            Option.getOrElse(() => true),
+          ),
         }),
+        Effect.bind("channel", ({ context }) =>
+          channels.get(context.guild_id!, context.channel_id!),
+        ),
+        Effect.filterOrFail(
+          ({ channel }) => channel.type === Discord.ChannelType.PUBLIC_THREAD,
+          () => new NotInThreadError(),
+        ),
+        Effect.tap(({ context, channel, small }) =>
+          Effect.forkIn(followUpResponse(context, channel, small), scope),
+        ),
+        Effect.as(
+          Ix.response({
+            type: Discord.InteractionCallbackType.CHANNEL_MESSAGE_WITH_SOURCE,
+            data: {
+              content: "Creating summary...",
+              flags: Discord.MessageFlag.EPHEMERAL,
+            },
+          }),
+        ),
       ),
-    ),
   )
 
   const ix = Ix.builder