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git.stella-ops.org/docs/features/checked/signals/runtime-reachability-collection.md
master 9ca2de05df more features checks. setup improvements
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Runtime Reachability Collection

Module

Signals

Status

VERIFIED

Description

Runtime collection via .NET EventPipe agent with method-level tracing and facts ingestion is implemented.

Implementation Details

  • Modules: src/Signals/StellaOps.Signals.RuntimeAgent/, src/Signals/StellaOps.Signals/Services/
  • Key Classes:
    • DotNetEventPipeAgent (src/Signals/StellaOps.Signals.RuntimeAgent/DotNetEventPipeAgent.cs) - .NET EventPipe agent for method-level runtime tracing
    • RuntimeFactsIngestService (src/Signals/StellaOps.Signals.RuntimeAgent/RuntimeFactsIngestService.cs) - ingests runtime method events into the signals store
    • RuntimeMethodEvent (src/Signals/StellaOps.Signals.RuntimeAgent/RuntimeMethodEvent.cs) - event model for captured runtime method calls
    • ReachabilityFactEventBuilder (src/Signals/StellaOps.Signals/Services/ReachabilityFactEventBuilder.cs) - builds reachability fact events from runtime data
    • ReachabilityFactCacheDecorator (src/Signals/StellaOps.Signals/Services/ReachabilityFactCacheDecorator.cs) - caching layer for reachability fact lookups
  • Interfaces: IRuntimeAgent, IRuntimeFactsIngest, IReachabilityFactRepository
  • Source: Feature matrix scan

E2E Test Plan

  • Start DotNetEventPipeAgent against a target .NET process and verify method-level events are captured
  • Verify RuntimeFactsIngestService processes runtime method events and stores reachability facts
  • Verify runtime facts include method names, call stacks, and timestamps
  • Verify ReachabilityFactCacheDecorator caches frequently queried facts
  • Verify runtime facts are correlated with static call-graph data to produce combined reachability evidence