Both WeCom adapters dropped everything past the platform limit with no
error: the AI Bot adapter sliced markdown content at 4000 chars, and the
callback (self-built app) adapter sliced text at 2048 *characters* while
message/send keeps only the first 2048 *bytes* (so CJK replies lost
everything past about 680 characters). Cron output was additionally cut
to 4000 chars with a gateway-host file pointer.
AI Bot: send() queues one markdown message per MAX_MESSAGE_LENGTH chunk,
so every chunk draws its own token from the 30 msgs/min per-chat bucket
(errcode 846607), and each goes out on the cached reply req_id like any
other send in that chat (group chats cannot send proactively). Callback: chunk by UTF-8 bytes at 2048.
Both declare splits_long_messages so cron delivery hands over the full
payload. Each stops at the first failed chunk and returns its error.
Fixes#19689Fixes#107443
Co-authored-by: luyao618 <364939526@qq.com>
Co-authored-by: briandevans <252620095+briandevans@users.noreply.github.com>
Co-authored-by: LeonSGP43 <cine.dreamer.one@gmail.com>
Co-authored-by: Andy <sz.private@gmail.com>
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