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zen-useragent

Verified · install-tested on dsh jiujiezongheti

✓ Actively maintained

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2026-08-20Last push
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What it does

A plugin in the Developer category for DeepSeek Harness.

Our take
Works — verified, early-stage project

A plugin in the Developer category for DeepSeek Harness. It installs cleanly and boots without issues in our testing. It's early-stage but functional.

“Verified” means our automated CI actually ran dsh plugin add in a clean profile and it booted — nothing more. Feature descriptions and version compatibility are the author’s claims. This is not a security audit and not an endorsement of third-party code.

README

dsh-plugin-zen-useragent

A DeepSeek Harness (DSH) plugin that lets provider-configured request headers
(e.g. User-Agent) reach the pi-ai API requests, fixing the OpenCode ZEN
free model 429 FreeUsageLimitError by identifying requests as the opencode
client instead of deepseek-harness.

修复 DSH 中 OpenCode ZEN 免费模型 429 FreeUsageLimitError: Rate limit exceeded 问题的插件。

原理

原生 @deepseek-ai/dsh-llm-pi-airequestHeaders() 会把与 attribution headers
冲突的自定义请求头(如 User-Agent过滤掉,实际发给 API 的 always 是
user-agent: deepseek-harness/0.1.0-rc.6 (+https://github.com/deepseek-ai/deepseek-harness)

OpenCode ZEN(https://opencode.ai/zen/v1)按客户端标识限流:请求头不是
opencode/... 就被当作未知客户端 → 返回 429。同一把 API Key 在 OpenCode TUI 里
正常,在 DSH 里 429,就是这个原因。

本插件通过 cordis.patch.yml 禁用原生 llm-pi-ai 入口,并插入一个指向插件
包装模块的新入口。包装模块在加载原模块之前requestHeaders 打补丁,让配置的
headers 覆盖 attribution,然后原样转发原模块导出。补丁幂等、每次启动自动执行,
DSH 升级后自动重新打补丁,修复不会失效

安装

# 1. 安装 pnpm(如已有可跳过)
npm install -g pnpm

# 2. 安装插件到 web profile(推荐:从 GitHub 源)
dsh plugin --profile web add github:jiujiezongheti/zen-useragent

#    或从 npm 安装
dsh plugin --profile web add dsh-plugin-zen-useragent

启用

  1. 确保 settings.yaml$DSH_HOME/settings.yaml)里 opencodezen provider 配置了
    请求头(DSH Web 的 Models 页面可直接编辑不保存的部分):

    llm-pi-ai:
      providers:
        opencodezen:
          displayName: opencode
          apiKeyEnv: OPENCODEZEN_API_KEY
          api: openai-completions
          baseURL: https://opencode.ai/zen/v1
          headers: { User-Agent: opencode/1.18.18, Referer: https://opencode.ai }
          models: [...]
    
  2. 重启 DSH Web:dsh web(安装插件后必须重启才会加载新的 bundle 层)。

  3. 启动时终端会打印一行确认:

    [dsh-plugin-zen-useragent] patched: C:\...\dsh-llm-pi-ai\lib\index.js
    

    若输出 READONLY: ...WRITE FAILED: ...,说明安装目录不可写,修复未
    生效(补丁失败不会中断启动,会回退为原生行为)——修复权限或改用本地安装。

验证

重启后切到 opencode 免费模型发一条消息,如不再 429 即成功。
终端日志出现 already patched 表示此前已被补丁,无需重复操作。

卸载

dsh plugin --profile web remove dsh-plugin-zen-useragent

卸载后需要重启 DSH,且被补丁的文件会保留(无害:只是允许自定义请求头覆盖
attribution)。如需彻底还原,可删除 requestHeaders 里的补丁标记行并重启,
或重装最新版 DSH。

备注

  • 补丁只影响「provider 显式配置了同名请求头」的情况;未配置 headers 的 provider
    行为与原生完全一致。
  • 若 DSH 升级后函数结构变化导致"无法识别",插件会打印
    SKIPPED: unrecognized requestHeaders shape 并保持不破坏新代码 —— 此时升级本插件即可。
  • 补丁可靠性措施:
    • requestHeaders 的定位按花括号配平执行(跳过字符串、模板字符串与注释里
      的括号),函数体内出现行首闭合的嵌套对象也不会被截断写坏;
    • 替换结果写盘前做三重校验(旧特征行已消失、标记已存在、函数唯一),任一不满足
      即拒绝写盘(打印 SKIPPED:);
    • 落盘采用原子写(同目录临时文件 + rename,Windows 上 rename 被占用时回退
      直接写),并发启动的进程不会读到写了一半的文件;
    • 目标只读或写入失败时打印 READONLY: / WRITE FAILED: 并跳过,不会中断 DSH
      启动
      ,请求回退为原生行为。
  • 补丁算法在 lib/patch-core.js(纯函数),单测见 test/patch-core.test.mjs
    运行 node test/patch-core.test.mjs

Install

🧩 Let your agent install it (recommended)

Install the catalog once, then DeepSeek Harness can find and install any plugin from this site automatically:

dsh plugin add dshbase-catalog

Then say "install zen-useragent for me" — your agent finds it in the directory and installs it. Docs: dshbase-catalog · verified packs.

This plugin is GitHub source (not published to npm) — install it straight from the repo:

Web profile:

dsh plugin --profile web add github:jiujiezongheti/zen-useragent

Headless (CLI) profile:

dsh plugin --profile headless add github:jiujiezongheti/zen-useragent

Test report

Verified: L1 install + L2 load + L3 runtime from GitHub source on dsh 0.1.0-rc.6.

Security: not yet scanned — our daily static scan will cover it shortly.

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