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Attachment Downscale — DSH Plugin for DeepSeek Harness
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dsh-attachment-downscale

Attachment Downscale

Automatic attachment fallback: DSH image limits (one side ≤2000px / ≤3.5MB / ≤40 million pixels) no longer reject oversized images; sharp automatically resizes or re-encodes them before storage, so original phone photos can be uploaded without exceeding limits.

The plugin will be installed here. Keep web if you are unsure.

npx -y @deepseek-ai/dsh plugin --profile web add dsh-attachment-downscale@0.1.0
READMECompatibilityVersions

Compatibility and provenance

Attachment Downscale is published as dsh-attachment-downscale and currently resolves to version 0.1.0. The Hub verifies its manifest and preserves the exact installation source for reproducible installs.

DSH compatibility
*
Runtime surfaces
any
Release source
npm
Registry updated
8/22/2026

Versions

0.1.0stable
8/22/2026

Related plugins

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Latest
0.1.0
DSH
*
HMR
Process restart
Tree shaking
Safe tree shaking not declared
Unpacked size
14.7 kB
Files
6
Surface
any
License
MIT
Source
npm
GitHub
★ 1
Weekly downloads
0
Last push
8/22/2026
View source ↗
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README

dsh-attachment-downscale

DSH 图片附件准入对超限图片（单边 >2000px / 单图 >3.5MB / 像素超 4000 万）直接拒绝， 上传手机原图时体验很差。本插件在 attachments 服务入口（saveImages）把超限图片 用 sharp 自动降级后再入库：

  • 超尺寸 → 等比缩放到限制内（长边 ≤2000px）
  • 缩放后仍超字节数 → 同格式降质（jpeg/webp 质量阶梯），仍不行转 webp
  • 多帧动图（GIF/WebP）跳过不处理，避免破坏动画
  • 处理失败 → 直通原准入逻辑（维持原拒绝行为），绝不吞错误

入库后图片恒满足准入限制，模型请求 / vision-bridge / 历史导出拿到的都是合规文件。

安装

# 本地开发
npm run build        # 或 dev_build_plugin
# 装入 web profile（热生效，免重启）：
# dev_install_package /Users/zoumutou/coded/dsh-attachment-downscale web

# 生产（npm 发布后）
dsh plugin --profile web add dsh-attachment-downscale
# 或 GitHub 装配
dsh plugin --profile web add github:zoumutou/dsh-attachment-downscale

市场上架

  • npm 包带 dsh-plugin 关键词，GitHub 仓库打 dsh-plugin 话题后，社区市场 （dsh-suite 每小时刷新 / chnjames dsh-plugin-market 实时查询）自动收录，无需 PR。
  • Release 附件：npm pack 产出 dsh-attachment-downscale-<version>.tgz。

配置

插件行支持 config：

- insert:
    - name: dsh-attachment-downscale
      config:
        enabled: true      # 关闭后恢复原拒绝行为
        quality: 82        # 重编码质量（jpeg/webp）
        # 以下缺省跟随 attachments 服务自身的准入限制：
        # maxImageDimension: 2000
        # maxImageBytes: 3670016
        # maxImagePixels: 40000000

测试

node test/normalize.test.mjs

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