Telegram 原图发送：通过 mediaOptimize=false 避免图片被压缩

问题/场景：默认 Telegram 图片通道会压缩，海报/设计稿细节丢失。前置条件：已接入 Telegram channel 且可修改 OpenClaw 配置。实施步骤：在 channels.telegram 里关闭 mediaOptimize，重启 gateway，并用同一张高分辨率图做前后对照发送。关键命令/配置：`"mediaOptimize": false`、`openclaw gateway restart`。验证：接收端显示为文档附件（非压缩照片）且像素/体积保持原始级别。风险与边界：文件型发送会降低预览体验，默认行为未变（默认仍压缩）。来源：PR #22434 + Telegram Bot API sendDocument/sendPhoto 行为说明。

GITHUBDiscovered 2026-02-22Author godenjan

Prerequisites

OpenClaw Telegram channel is already configured and working for outbound media.
You can edit OpenClaw config and restart gateway service.

Steps

Open your OpenClaw config and locate `channels.telegram` account settings.
Set `mediaOptimize` to `false` for the target Telegram account.
Restart gateway so new outbound adapter config is loaded.
Send one test image and compare output type/quality with previous behavior.

Commands

openclaw gateway restart

openclaw gateway status

# config snippet: "channels": { "telegram": { "mediaOptimize": false } }

Verify

Telegram recipient sees image delivered as file/document (not recompressed photo), and visual details remain intact.

Caveats

Document-style delivery may reduce in-chat preview convenience compared with photo mode.
Type updates around this option were still being iterated in PR review; validate on your running version（需验证）.

Source attribution

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

Open original source ↗

Visit original post