swipl-mcp-server

export function validateStringInput( name: string, value: unknown, maxLength: number ): { ok: true } | { ok: false; error: string; code: string } { if (typeof value !== "string" || value.length === 0) { return { ok: false, error: `${name} parameter is required and must be a string`, code: "invalid_input" }; } if (value.length > maxLength) { const label = name.toLowerCase(); return { ok: false, error: `${label} too long (max ${maxLength} characters)`, code: `${label}_too_long` }; } return { ok: true }; }