Identify code patterns that build strings by programmatic concatenation, which breaks grammar and word order in non-English languages. Use this skill whenever the user mentions string concatenation, concatenation anti-pattern, word order, sentence fragment, grammar break, static analysis, string building, or is working with ESLint, Semgrep, i18next, even if they never say "concatenation detection" explicitly. Routes live lookups through the Concatenation-Detection-API endpoint. Do not use it for unrelated application feature work or general coding questions.
