Tracking in read only (ARCH209)

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Key dotnet.ef.tracking-in-read-only · Severity info · Category ef

Change tracking adds unnecessary overhead for queries whose results are never saved.

Incorrect

public Task<List<Report>> GetReports() =>
    _db.Reports
        .OrderByDescending(r => r.CreatedAt)
        .ToListAsync();

Correct

public Task<List<Report>> GetReports() =>
    _db.Reports
        .AsNoTracking()
        .OrderByDescending(r => r.CreatedAt)
        .ToListAsync();

Fix

Add AsNoTracking on read-only query paths.