dsh-a2a-agent
Run the following command in DeepSeek Harness:
dsh plugin install fangweixuan26-hash/dsh-a2a-agent
Paste the following prompt into your AI chat to install this plugin:
To install the dsh-a2a-agent plugin, run the command `dsh plugin install fangweixuan26-hash/dsh-a2a-agent` with the full source code at https://github.com/fangweixuan26-hash/dsh-a2a-agent.
About this plugin
DeepSeek Harness (DSH) is a powerful agent framework, but it natively only supports the MCP protocol for agent-tool interaction, lacking external agent endpoints. This prevents DSH agents from directly communicating with other agents, limiting interoperability in multi-agent ecosystems. With the rise of Google's A2A (Agent-to-Agent) open protocol in 2025, agents from different frameworks can discover and collaborate through unified standards, yet DSH lacked a ready-made solution to bridge this gap, hindering developers from building cross-framework agent collaboration applications.
The dsh-a2a-agent plugin addresses this by providing a lightweight Cordis plugin that instantly makes DSH agents A2A-compatible. Its core capabilities include auto-generating an Agent Card compliant with A2A 1.0 specifications, offering standard JSON-RPC 2.0 endpoints (supporting message sending, streaming, task querying, and cancellation), and leveraging the host's LLM service for intelligent dialogue replies. It gracefully degrades to deterministic echo if the model is unavailable, ensuring stability. Additionally, it reuses the host web server to avoid port conflicts and includes a real-time status card for easy monitoring of the agent's operation.
This plugin is ideal for developers who already use DeepSeek Harness to build agents but wish to expand their interaction boundaries. Whether for personal projects or team collaborations, whenever there's a need to integrate DSH agents into the broader A2A ecosystem—such as enabling cross-platform agent conversations, distributed task processing, or multi-agent collaborative workflows—it offers a convenient integration solution. With zero build dependencies and a reversible lifecycle, the plugin is easy to install and remove, making it perfect for rapid experimentation or production deployments. It's a practical and flexible tool for innovators committed to advancing agent interoperability and open protocol applications.
In summary, dsh-a2a-agent not only solves the missing A2A protocol support for DSH agents but also enhances agent capabilities through standardized interfaces and intelligent replies, laying the groundwork for building next-generation interoperable agent systems. As its roadmap progresses, the plugin is poised to support more advanced features, further expanding the possibilities of agent collaboration.
Use Cases
- Integrate DeepSeek Harness agents into the A2A protocol for cross-framework collaboration.
- Manage agent messages and tasks via JSON-RPC 2.0 endpoints with streaming support.
- Monitor agent operation in real-time with status cards for debugging and optimization.
Best For
- Developers building agents with DeepSeek Harness.
- Architects designing multi-agent systems requiring agent-to-agent collaboration.
- Researchers exploring A2A protocols and agent interoperability.
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