<?xml version="1.0"?>

<!DOCTYPE module PUBLIC

"-//Checkstyle//DTD Checkstyle Configuration 1.3//EN"

"https://checkstyle.org/dtds/configuration_1_3.dtd">

<module name="Checker">

<property name="severity" value="warning"/>

<property name="charset" value="UTF-8"/>

<!-- Suppress checks in generated/test files -->

<module name="SuppressionSingleFilter">

<property name="checks" value=".*"/>

<property name="files" value=".*[\\/]target[\\/].*"/>

</module>

<!-- Suppress MethodName in MCP tools — MCP protocol requires snake_case -->

<module name="SuppressionSingleFilter">

<property name="checks" value="MethodName"/>

<property name="files" value=".*[\\/]mcp[\\/]Mcp.*\.java$"/>

</module>

<!-- File-level checks -->

<module name="FileLength">

<property name="max" value="2000"/>

</module>

<!-- Line length: 150 (realistic for Java with generics/annotations) -->

<module name="LineLength">

<property name="max" value="150"/>

<property name="ignorePattern" value="^package.*|^import.*|a href|href|http://|https://|ftp://"/>

</module>

<module name="FileTabCharacter">

<property name="eachLine" value="true"/>

</module>

<module name="TreeWalker">

<!-- Naming conventions -->

<module name="TypeName"/>

<module name="MethodName"/>

<module name="LocalVariableName"/>

<module name="MemberName"/>

<module name="ParameterName"/>

<module name="PackageName"/>

<!-- Constants: allow UPPER_CASE and camelCase (many legacy constants) -->

<module name="ConstantName">

<property name="format" value="^[a-zA-Z][a-zA-Z0-9_]*$"/>

</module>

<!-- Import checks. severity="error" promotes these above the Checker's

<module name="RedundantImport">

<property name="severity" value="error"/>

</module>

<module name="UnusedImports">

<property name="severity" value="error"/>

</module>

<!-- Whitespace — only critical ones -->

<module name="GenericWhitespace"/>

<!-- Coding — safety checks (catch real bugs) -->

<module name="EqualsHashCode"/>

<module name="SimplifyBooleanExpression"/>

<module name="SimplifyBooleanReturn"/>

<module name="StringLiteralEquality"/>

<module name="OneStatementPerLine"/>

<module name="MultipleVariableDeclarations"/>

<module name="FallThrough"/>

<module name="MissingSwitchDefault">

<!-- Allow in switch expressions and pattern matching -->

<property name="severity" value="info"/>

</module>

<!-- Modifiers -->

<module name="ModifierOrder"/>

</module>

</module>