AI SaaS Deal Finder for the DeepSeek Harness

The DeepSeek Harness plugin is designed to help users find the cheapest and legitimate AI/SaaS purchasing options. Guided by the "everything is a plugin" philosophy, it instructs the host agent to use web tools to research current pricing and promotional evidence, rather than relying on static databases. Core capabilities include evidence-based research, multi-dimensional eligibility verification (region, payment methods, invoicing, etc.), normalized cost calculation, and deterministic ranking. For users in China, it places particular emphasis on official availability and regional restrictions. The plugin provides the `ai_saas_deal_rank` tool, which returns detailed data including price, discounts, taxes, and eligibility status. It relies entirely on the host agent's search capabilities and does not involve external API keys or purchase execution.