dsh-web-search-opencode-go

If you point DSH's built-in web_search at OpenCode Go or OpenCode Zen, the upstream gateway rejects every request that lacks the x-opencode-session routing header, returning HTTP 400 with a MissingSessionID error. The official @deepseek-ai/dsh-web-search-deepseek provider sends only standard x-api-key and authorization headers, so the search tool stops working entirely.

This plugin is a drop-in patched fork of that official provider whose sole change is to auto-inject x-opencode-session (resolved from the current DSH agent session ID or a configurable fallback) and x-opencode-client: dsh on every outbound request. Your existing web-search-deepseek settings, provider ID, and settings.yaml all stay untouched, and no new command, tool, or prompt is introduced. Installation works through either the DSH bundle loader or an offline file-copy path, supports macOS, Linux, and Windows, and never modifies the official package directory. Uninstalling with a single command restores the original package.

If you run DSH with OpenCode Go or Zen as your search backend and are stuck on MissingSessionID errors, this patch is written for you: install it, restart dsh web, and ask your agent to search the web in natural language as usual.