Spec: LC042 - Missing Query Tags

Goal

Detect complex EF queries that lack TagWith(...) or TagWithCallSite().

The Problem

Complex query shapes are much easier to trace in logs, profilers, and query plans when they carry an explicit tag.

Example Violation

var users = db.Users
    .Where(u => u.IsActive)
    .OrderBy(u => u.Name)
    .Take(10)
    .ToList();

Analyzer Logic

ID: LC042

Category: Performance

Severity: Info

Configuration

dotnet_code_quality.LC042.query_operator_threshold = 3

Notes

The rule reports only when the query is provably EF-backed, has no existing tag, and meets or exceeds the configured operator threshold.