enum ValueKind: string { Html, Code, Url, Text } with strictness() and
tightens(self $routed) (the S33a rule formerly AttrWriter/ValueCleaner::tightens
over STRICTNESS). ValueCleaner::clean() takes ?ValueKind, kindOf()/kind()/
unknownKind() return it, the sanitizer match is exhaustive over the four cases;
the "Feldart" message prints ->value, so its text is unchanged. ShortformWriter
drops the identity map CLEAN_KIND for ValueKind::tryFrom($spec['kind']) ??
ValueKind::Text; Composer and ShortformWriter pass ValueKind::Text/Url.
The installed PHPCompatibility sniffs do not know enums: two sniffs are disabled
in ValueKind.php only, with the reason.
Tests: ValueCleanerTest passes/asserts ValueKind cases instead of strings;
+ValueKindTest (full tightens matrix, case values).
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01At3V6SjwbMe6eMzVGW3Hs7
janniclas.loosenandClaude Opus 5.5
570c1e6142