dsh-web-search-router

DeepSeek Harness ships with a single-engine web_search tool. When that engine times out, hits a rate limit, or exhausts its quota, the agent gets an empty result or a hard error with no recovery path. dsh-web-search-router inserts a priority-ordered multi-provider router behind the existing tool interface: the model keeps calling the same web_search tool while up to eight backends are tried in sequence until one returns a usable answer.

Eight providers ship out of the box—SearXNG, DeepSeek Search, Tavily, Brave Search, Exa, Firecrawl, Parallel, and DuckDuckGo—with unconfigured ones skipped automatically. Transient failures trigger a short cooldown; rate-limit and quota errors support longer custom cooldowns; and whether an empty result should fall through to the next provider is a simple per-router toggle. Non-secret settings are stored in DSH\u0027s native Settings namespace and take effect without a restart. API keys are managed exclusively through DSH Credentials, and router error messages are sanitized to redact URLs and token-like values before logging.

This plugin is for DeepSeek Harness users who want a resilient multi-engine search pipeline for their agents. As long as your agent preset exposes DSH\u0027s built-in web_search tool, you can reorder, enable, and disable providers from the Settings panel without changing any agent code.