Polly.Core

using Polly;

// Create a context from the pool
var context = ResilienceContextPool.Shared.Get(cancellationToken);
context.OperationKey = "my-operation";

try
{
    // Use the context in pipeline execution
    await pipeline.ExecuteAsync(
        static (ctx, state) => { /* your logic */ },
        context,
        state);
}
finally
{
    // Always return the context to the pool
    ResilienceContextPool.Shared.Return(context);
}

// Using Outcome for advanced scenarios
public async ValueTask<Outcome<string>> GetDataAsync(
    ResilienceContext context,
    CancellationToken ct)
{
    try
    {
        var result = await FetchDataAsync(ct);
        return Outcome.FromResult(result);
    }
    catch (Exception ex)
    {
        return Outcome.FromException<string>(ex);
    }
}