DI001
Service Scope Not Disposed
`IServiceScope` instances created with `CreateScope()` or `CreateAsyncScope()` that are never disposed.
Rules
Rule index
Browse all analyzer rules with rule summaries, README examples, and extracted sample-app snippets.
DI002
Scoped Service Escapes Scope
a service resolved from a scope that is returned or stored somewhere longer-lived.
DI003
Captive Dependency
singleton services capturing scoped or transient dependencies, including constructor injection and high-confidence factory paths such as inline delegates, method-group factories, keyed resolutions, and `ActivatorUtilities.CreateInstance(...)` without explicit constructor arguments.
DI004
Service Used After Scope Disposed
using a service after the scope that produced it has already ended.
DI005
Use `CreateAsyncScope` in Async Methods
`CreateScope()` used in async flows where async disposal is needed.
DI006
Static `IServiceProvider` Cache
`IServiceProvider` / `IServiceScopeFactory` / keyed provider stored in static fields or properties.
DI007
Service Locator Anti-Pattern
resolving dependencies via `IServiceProvider` inside app logic.
DI008
Disposable Transient Service
transient services implementing `IDisposable`/`IAsyncDisposable` in risky patterns.
DI009
Open Generic Captive Dependency
open generic singleton registrations that depend on shorter-lived services.
DI010
Constructor Over-Injection
constructors with too many meaningful dependencies.
DI011
`IServiceProvider` Injection
constructor injection of `IServiceProvider`, `IServiceScopeFactory`, or `IKeyedServiceProvider` in normal services.
DI012
Conditional Registration Misuse
- `TryAdd*` calls after an `Add*` already registered that service.
DI013
Implementation Type Mismatch
invalid `typeof` service/implementation pairs that compile but fail at runtime.
DI014
Root Service Provider Not Disposed
root providers from `BuildServiceProvider()` that are never disposed.
DI015
Unresolvable Dependency
registered services with direct or transitive constructor/factory dependencies that are not registered (including keyed and open-generic paths).
DI016
BuildServiceProvider Misuse
`BuildServiceProvider()` calls while composing registrations (for example in `ConfigureServices`, `IServiceCollection` extension registration methods, or registration lambdas).