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GCI0054InfoAsync and Concurrency

Async Void Abuse

Disabled by default (severity None). Public async void detection superseded by GCI0016. Re-enable for the stricter public-only filter.

Why this rule exists

async void prevents awaiting and crashes on unhandled exceptions outside event handlers.

Code example

Triggers the rule
+ public async void SaveUserAsync(User user) { await _repo.SaveAsync(user); }
Passes the rule
+ public async Task SaveUserAsync(User user) { await _repo.SaveAsync(user); }

Configuration

Disable or adjust the severity of this rule in .gauntletci.json:

{
  "rules": {
    "GCI0054": { "enabled": true, "severity": "Info" }
  }
}

See Configuration for the full schema.

Related rules

GCI0016Block

Concurrency and State Risk

Detects async void methods, blocking async calls (.Result, .Wait(), .GetAwaiter().GetResult()), lock(this), and Thread.Sleep in production code. Uses ForPatternScan to ignore matches inside // comments and string literals.

Implemented in src/GauntletCI.Core/Rules/Implementations/GCI0054_*.cs.

About the author

Eric Cogen -- Founder, GauntletCI

Twenty years as a senior technical consultant building and modernizing enterprise platforms across .NET, AWS, serverless, microservices, and AI-driven systems.

@EricCogen/GauntletCI on GitHub/More about Eric