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openfang/agents/langchain-code-reviewer/workflow.json
T
Tsukimaru Oshawott 40bdf4316b feat(agents): add LangChain code review agent with A2A protocol
Add a Python-based code review agent powered by LangChain that
integrates with OpenFang via the A2A (Agent-to-Agent) protocol.

- agent.py: Core review logic with structured Chinese SYSTEM_PROMPT
  covering 6 dimensions (correctness, security, performance,
  maintainability, testing, style) and 4 severity levels
- server.py: FastAPI server exposing A2A-compatible endpoints
  (/.well-known/agent.json and /a2a JSON-RPC)
- workflow.json: OpenFang workflow definition for the review pipeline
- config.example.toml: Example A2A config for ~/.openfang/config.toml
- Supports OpenAI, DeepSeek, and Ollama backends

Made-with: Cursor
2026-03-16 14:33:41 +08:00

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{
"id": "a1b2c3d4-e5f6-7890-abcd-ef1234567890",
"name": "langchain-code-review-pipeline",
"description": "Code review pipeline: uses LangChain external agent for deep review, then OpenFang Writer agent to format the final report.",
"created_at": "2026-03-16T00:00:00Z",
"steps": [
{
"name": "review-code",
"agent": { "name": "a2a-proxy" },
"prompt_template": "Use the a2a_send tool to send the following code to the external agent for code review. Set agent_name to langchain-code-reviewer and set message to the code below. Return the complete review result:\n\n{{input}}",
"mode": "sequential",
"timeout_secs": 300,
"output_var": "review_result"
},
{
"name": "format-report",
"agent": { "name": "Writer" },
"prompt_template": "Format the following code review into a clean, professional report. Preserve all severity levels and scores. Add a brief executive summary at the top:\n\n{{review_result}}",
"mode": "sequential",
"timeout_secs": 120
}
]
}