@upstash/context7-mcp/dist/lib/tool-args.js

MCP server for Context7

export const GLOBAL_ALIASES = {
    query: ["userQuery", "question"],
};
// Tool-scoped aliases, for keys that are canonical on one tool but a
// hallucination on another (e.g. `libraryName` is canonical for
// `resolve-library-id`, so we only rewrite it on `query-docs` calls).
export const QUERY_DOCS_ALIASES = {
    libraryId: ["context7CompatibleLibraryID", "libraryID", "libraryName"],
};
// z.preprocess step that rewrites aliased arg names before validation. Living
// in the schema keeps aliasing transport-agnostic: the SDK parses the wire
// message (any transport, any protocol era) and runs this on validation.
// Returns a remapped copy — the raw wire params object stays untouched.
export function aliasArgs(aliases) {
    return (value) => {
        if (!value || typeof value !== "object")
            return value;
        const args = { ...value };
        for (const [canonical, alternatives] of Object.entries(aliases)) {
            if (canonical in args)
                continue;
            for (const alt of alternatives) {
                if (alt in args) {
                    args[canonical] = args[alt];
                    delete args[alt];
                    break;
                }
            }
        }
        return args;
    };
}