Telegram 消息防卡片刷屏：用 disableWebPagePreview 关闭链接预览

问题：运营通知里 URL 很多时，Telegram 自动预览会把消息撑得很长。做法：在 message send 中显式关闭网页预览，保留可点击链接但不生成卡片。

GITHUBDiscovered 2026-02-18Author @shelomentsevtsev

Prerequisites

Telegram channel is connected and OpenClaw message tool can send to target chat/topic.
Gateway/CLI version includes PR #19869 or later release.

Steps

Pick one link-heavy notification template and keep message body unchanged for A/B comparison.
Send baseline message with default preview behavior and record final rendered height/noise in chat.
Send the same text with preview disabled (`disableWebPagePreview=true`).
Apply this option to broadcast/cron templates where concise delivery is preferred.

Commands

openclaw gateway status

openclaw gateway restart

openclaw message send --channel telegram --target <chat_id> --message 'Links: https://a.com https://b.com' --disable-web-page-preview

Verify

Messages still contain clickable URLs but no webpage card preview is rendered in Telegram.

Caveats

CLI/SDK flag naming can vary by release; confirm final parameter name in your installed version（需验证）.
For campaigns that rely on rich cards to improve CTR, disabling preview may reduce engagement.

Source attribution

This tip is aggregated from community/public sources and preserved with attribution.