DeepSeek Harness Plugin: dsh-prompt-customizer

`dsh-prompt-customizer` is a prompt and tool management plugin for DeepSeek Harness, designed to address prompt contamination and bloated tool catalogs. The plugin supports hierarchical management by session phase (onboarding, persistent, and compression-controlled phases) and agent presets, providing prompt blocking, replacement, injection, and reordering capabilities, as well as skill set management and MCP Server integration. It enables the `forceSections` mechanism by default to ensure fine-grained control over prompts, allowing developers to flexibly adjust configurations through drag-and-drop and real-time preview.