DeepSeek Harness Browser Runtime Plugin (dsh-browser-runtime)

`dsh-browser-runtime` is an open-source plugin for DeepSeek Harness (DSH), designed to provide “everything as a plugin” browser interaction capabilities for Agents. By encapsulating Playwright, it addresses the context fragmentation caused by hardcoding and offers 18 tools covering navigation, interaction, screenshots, and structured extraction. The plugin features isolated environments, checkpoint recovery, protection against stale references, and secure credential management, ensuring safe multi-Agent concurrency and traceable operations. Installation requires a Node.js 22.19+ and pnpm 10 environment. Through standardized tool guidance and evidence logging, the tool enables Agents to perform web automation tasks efficiently and reliably.