chktex-diagnostic (CHK###)

What it does

Represents a native ChkTeX warning or error emitted by the optional ChkTeX reviewer. TeXact preserves native numbers below 900 after the CHK prefix, so native code 25 is reported as CHK025.

Why is this bad?

The exact issue depends on the native ChkTeX rule. ChkTeX diagnostics identify LaTeX constructs that are commonly ambiguous, fragile, or inconsistent, and should be reviewed in the context of the document. For further motivation, consult the documentation for ChkTeX.

Example

CHK025: ChkTeX's native diagnostic message