feat(mcp-insights): set flag for mcp spans (#95226)

Author: obostjancic

src/sentry/constants.py

@@ -640,6 +640,7 @@ class InsightModules(Enum):
     QUEUE = "queue"
     LLM_MONITORING = "llm_monitoring"
     AGENTS = "agents"
+    MCP = "mcp"
 
 
 INSIGHT_MODULE_FILTERS = {
@@ -676,6 +677,7 @@ class InsightModules(Enum):
     InsightModules.AGENTS: lambda spans: any(
         span.get("op").startswith("gen_ai.") for span in spans
     ),
+    InsightModules.MCP: lambda spans: any(span.get("op").startswith("mcp.") for span in spans),
 }
 
 StatsPeriod = namedtuple("StatsPeriod", ("segments", "interval"))

src/sentry/event_manager.py

@@ -2539,6 +2539,7 @@ def _detect_performance_problems(jobs: Sequence[Job], projects: ProjectsMapping)
     InsightModules.QUEUE: "has_insights_queues",
     InsightModules.LLM_MONITORING: "has_insights_llm_monitoring",
     InsightModules.AGENTS: "has_insights_agent_monitoring",
+    InsightModules.MCP: "has_insights_mcp",
 }