}

const LEGACY_BROWSER_ACT_REQUEST_KEYS = [

"kind",

"targetId",

"ref",

"doubleClick",

"timeoutMs",

] as const;

const LEGACY_BROWSER_ACT_SHARED_REQUEST_KEYS = new Set<

(typeof LEGACY_BROWSER_ACT_REQUEST_KEYS)[number]

>(["targetId"]);

function readActRequestParam(params: Record<string, unknown>) {

const requestParam = params.request;

if (requestParam && typeof requestParam === "object") {

return requestParam as Parameters<typeof browserAct>[1];

const request = { ...(requestParam as Record<string, unknown>) };

const hasMismatchedKind =

typeof request.kind === "string" &&

typeof params.kind === "string" &&

request.kind !== params.kind;

for (const key of LEGACY_BROWSER_ACT_REQUEST_KEYS) {

if (Object.hasOwn(request, key) || !Object.hasOwn(params, key)) {

continue;

}

// Flattened act fields are legacy shape repair. Only the tab scope is

// safe across kind mismatches; action-specific fields can corrupt the

// explicit nested request.

if (hasMismatchedKind && !LEGACY_BROWSER_ACT_SHARED_REQUEST_KEYS.has(key)) {

continue;

}

request[key] = params[key];

}

return request as Parameters<typeof browserAct>[1];

}

const kind = readStringParam(params, "kind");

if (!kind) {

return undefined;

}

const request: Record<string, unknown> = { kind };

const request: Record<string, unknown> = {};

for (const key of LEGACY_BROWSER_ACT_REQUEST_KEYS) {

if (!Object.hasOwn(params, key)) {

continue;