feat: configurable outbound text chunk limits

src/imessage/monitor.ts

@@ -1,4 +1,4 @@
-import { chunkText } from "../auto-reply/chunk.js";
+import { chunkText, resolveTextChunkLimit } from "../auto-reply/chunk.js";
 import { formatAgentEnvelope } from "../auto-reply/envelope.js";
 import { getReplyFromConfig } from "../auto-reply/reply.js";
 import type { ReplyPayload } from "../auto-reply/types.js";
@@ -111,15 +111,16 @@ async function deliverReplies(params: {
   client: Awaited<ReturnType<typeof createIMessageRpcClient>>;
   runtime: RuntimeEnv;
   maxBytes: number;
+  textLimit: number;
 }) {
-  const { replies, target, client, runtime, maxBytes } = params;
+  const { replies, target, client, runtime, maxBytes, textLimit } = params;
   for (const payload of replies) {
     const mediaList =
       payload.mediaUrls ?? (payload.mediaUrl ? [payload.mediaUrl] : []);
     const text = payload.text ?? "";
     if (!text && mediaList.length === 0) continue;
     if (mediaList.length === 0) {
-      for (const chunk of chunkText(text, 4000)) {
+      for (const chunk of chunkText(text, textLimit)) {
         await sendMessageIMessage(target, chunk, { maxBytes, client });
       }
     } else {
@@ -143,6 +144,7 @@ export async function monitorIMessageProvider(
 ): Promise<void> {
   const runtime = resolveRuntime(opts);
   const cfg = loadConfig();
+  const textLimit = resolveTextChunkLimit(cfg, "imessage");
   const allowFrom = resolveAllowFrom(opts);
   const mentionRegexes = resolveMentionRegexes(cfg);
   const includeAttachments =
@@ -274,6 +276,7 @@ export async function monitorIMessageProvider(
             client,
             runtime,
             maxBytes: mediaMaxBytes,
+            textLimit,
           });
         })
         .catch((err) => {
@@ -302,6 +305,7 @@ export async function monitorIMessageProvider(
       client,
       runtime,
       maxBytes: mediaMaxBytes,
+      textLimit,
     });
   };