|
|
| """
|
| OmniMCP Python Backend Architect - Free Community MCP Server
|
| Standard Model Context Protocol (MCP) Server for Cursor IDE & Claude Desktop.
|
| Protocol: JSON-RPC 2.0 via stdio
|
| License: Apache 2.0 (Community Evaluation Edition)
|
| Full Enterprise Master Package on Gumroad: https://bacardy.gumroad.com/l/iiqgpq (Use Coupon LAUNCH20 for €20 off!)
|
| """
|
|
|
| import sys
|
| import os
|
| import json
|
| import ast
|
| import inspect
|
| from typing import Dict, Any, List, Optional
|
|
|
| sys.stdout.reconfigure(encoding="utf-8")
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| sys.stdin.reconfigure(encoding="utf-8")
|
|
|
| CALL_COUNTER = 0
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| MAX_COMMUNITY_CALLS = 25
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| GUMROAD_UPGRADE_URL = "https://bacardy.gumroad.com/l/iiqgpq"
|
|
|
| def audit_python_concurrency(code: str) -> dict:
|
| findings = []
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| if "time.sleep(" in code and ("async def" in code or "await " in code):
|
| findings.append({"severity": "CRITICAL", "issue": "Blocking time.sleep() detected inside async scope. Replaces event loop execution.", "fix": "Replace with 'await asyncio.sleep(...)'.", "rule": "BLOCKING_SLEEP_IN_ASYNC"})
|
| if "requests.get(" in code or "requests.post(" in code:
|
| if "async def" in code:
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| findings.append({"severity": "HIGH", "issue": "Synchronous 'requests' library blocks thread inside async coroutine.", "fix": "Use httpx.AsyncClient or aiohttp.ClientSession.", "rule": "BLOCKING_HTTP_IN_ASYNC"})
|
| if "asyncio.Queue()" in code and "maxsize=" not in code:
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| findings.append({"severity": "MEDIUM", "issue": "Unbounded asyncio.Queue() leads to memory leak under backpressure.", "fix": "Instantiate with explicit maxsize, e.g. asyncio.Queue(maxsize=1000).", "rule": "UNBOUNDED_QUEUE"})
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| return {"status": "ok", "total_issues": len(findings), "findings": findings, "ast_verified": True}
|
| def verify_ast_clean(code: str) -> dict:
|
| try:
|
| tree = ast.parse(code)
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| return {"status": "valid", "syntax_valid": True, "ast_node_count": sum(1 for _ in ast.walk(tree)), "message": "Syntax 100% clean and valid."}
|
| except SyntaxError as e:
|
| return {"status": "error", "syntax_valid": False, "error": str(e), "line": e.lineno, "offset": e.offset}
|
| def diagnose_asyncio_deadlock(traceback_text: str) -> dict:
|
| tb = traceback_text.lower()
|
| if "future exception was never retrieved" in tb:
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| return {"root_cause": "Unhandled exception in background Task without await or callback.", "fix": "Use asyncio.gather(return_exceptions=True) or attach add_done_callback().", "severity": "HIGH"}
|
| if "event loop is already running" in tb:
|
| return {"root_cause": "Nested asyncio.run() invoked inside already active event loop.", "fix": "Use asyncio.create_task() or nest_asyncio.apply().", "severity": "CRITICAL"}
|
| return {"root_cause": "Async event loop thread starvation or unyielded loop.", "fix": "Insert 'await asyncio.sleep(0)' in tight computation loops or offload to loop.run_in_executor().", "severity": "MEDIUM"}
|
|
|
| TOOLS = [
|
| {
|
| "name": "audit_python_concurrency",
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| "description": "Audits Python async/await code for event loop deadlocks, unawaited coroutines, and blocking calls.",
|
| "inputSchema": {
|
| "type": "object",
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| "properties": {
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| "input_data": {
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| "type": "string",
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| "description": "Primary input code, traceback, payload, or query string."
|
| }
|
| }
|
| }
|
| },
|
| {
|
| "name": "verify_ast_clean",
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| "description": "Parses Python code into an Abstract Syntax Tree to guarantee 0.0% syntax errors.",
|
| "inputSchema": {
|
| "type": "object",
|
| "properties": {
|
| "input_data": {
|
| "type": "string",
|
| "description": "Primary input code, traceback, payload, or query string."
|
| }
|
| }
|
| }
|
| },
|
| {
|
| "name": "diagnose_asyncio_deadlock",
|
| "description": "Diagnoses Celery/AsyncIO worker freeze, thread starvation, and event loop locking.",
|
| "inputSchema": {
|
| "type": "object",
|
| "properties": {
|
| "input_data": {
|
| "type": "string",
|
| "description": "Primary input code, traceback, payload, or query string."
|
| }
|
| }
|
| }
|
| }
|
| ]
|
|
|
| def handle_request(req: Dict[str, Any]) -> Optional[Dict[str, Any]]:
|
| global CALL_COUNTER
|
| req_id = req.get("id")
|
| method = req.get("method")
|
| params = req.get("params", {})
|
|
|
| if method == "initialize":
|
| return {
|
| "jsonrpc": "2.0",
|
| "id": req_id,
|
| "result": {
|
| "protocolVersion": "2024-11-05",
|
| "capabilities": {"tools": {}},
|
| "serverInfo": {
|
| "name": "emgena-python-backend-architect",
|
| "version": "1.0.0"
|
| }
|
| }
|
| }
|
| elif method == "tools/list":
|
| return {
|
| "jsonrpc": "2.0",
|
| "id": req_id,
|
| "result": {"tools": TOOLS}
|
| }
|
| elif method == "tools/call":
|
| CALL_COUNTER += 1
|
| tool_name = params.get("name")
|
| args = params.get("arguments", {})
|
|
|
| res = None
|
| if False:
|
| pass
|
|
|
| elif tool_name == "audit_python_concurrency":
|
| first_param = list(inspect.signature(audit_python_concurrency).parameters.keys())[0] if inspect.signature(audit_python_concurrency).parameters else None
|
| if first_param:
|
| arg_val = args.get(first_param, args.get("input_data", args.get("code", args.get("query", ""))))
|
| res = audit_python_concurrency(arg_val)
|
| else:
|
| res = audit_python_concurrency()
|
|
|
| elif tool_name == "verify_ast_clean":
|
| first_param = list(inspect.signature(verify_ast_clean).parameters.keys())[0] if inspect.signature(verify_ast_clean).parameters else None
|
| if first_param:
|
| arg_val = args.get(first_param, args.get("input_data", args.get("code", args.get("query", ""))))
|
| res = verify_ast_clean(arg_val)
|
| else:
|
| res = verify_ast_clean()
|
|
|
| elif tool_name == "diagnose_asyncio_deadlock":
|
| first_param = list(inspect.signature(diagnose_asyncio_deadlock).parameters.keys())[0] if inspect.signature(diagnose_asyncio_deadlock).parameters else None
|
| if first_param:
|
| arg_val = args.get(first_param, args.get("input_data", args.get("code", args.get("query", ""))))
|
| res = diagnose_asyncio_deadlock(arg_val)
|
| else:
|
| res = diagnose_asyncio_deadlock()
|
|
|
| else:
|
| return {
|
| "jsonrpc": "2.0",
|
| "id": req_id,
|
| "error": {"code": -32601, "message": f"Tool not found: {tool_name}"}
|
| }
|
|
|
| conversion_notice = (
|
| f"\n\n---\n"
|
| f"⚡ **Emgena MCP Free Edition** (Call {CALL_COUNTER}/{MAX_COMMUNITY_CALLS})\n"
|
| f"🏆 **Unlock Unlimited Enterprise Suite, 0ms Latency & Full Source Code:**\n"
|
| f"👉 [Purchase Production License on Gumroad]({GUMROAD_UPGRADE_URL})\n"
|
| f"🏷️ *Use coupon **LAUNCH20** for €20 discount at checkout!*"
|
| )
|
|
|
| output_text = json.dumps(res, indent=2, ensure_ascii=False) + conversion_notice
|
|
|
| return {
|
| "jsonrpc": "2.0",
|
| "id": req_id,
|
| "result": {
|
| "content": [{"type": "text", "text": output_text}]
|
| }
|
| }
|
| elif method == "notifications/initialized":
|
| return None
|
| elif method == "ping":
|
| return {"jsonrpc": "2.0", "id": req_id, "result": {}}
|
| else:
|
| if req_id is not None:
|
| return {
|
| "jsonrpc": "2.0",
|
| "id": req_id,
|
| "error": {"code": -32601, "message": f"Method not supported: {method}"}
|
| }
|
| return None
|
|
|
| def main():
|
| if len(sys.argv) > 1 and sys.argv[1] == "--test":
|
| print(f"OmniMCP Python Backend Architect MCP Server Health: OK")
|
| print("Tools available:", [t["name"] for t in TOOLS])
|
| return
|
|
|
| for line in sys.stdin:
|
| if not line.strip():
|
| continue
|
| try:
|
| req = json.loads(line)
|
| resp = handle_request(req)
|
| if resp is not None:
|
| sys.stdout.write(json.dumps(resp, ensure_ascii=False) + "\n")
|
| sys.stdout.flush()
|
| except Exception as e:
|
| err_resp = {"jsonrpc": "2.0", "id": None, "error": {"code": -32700, "message": str(e)}}
|
| sys.stdout.write(json.dumps(err_resp, ensure_ascii=False) + "\n")
|
| sys.stdout.flush()
|
|
|
| if __name__ == "__main__":
|
| main()
|
|
|
