anymize: async (toolContextMap) => {
const authFields = getAuthFields('anymize');
const authValues = await loadAuthValues({ userId: user, authFields });

const contextFiles = options.tool_resources?.[EToolResources.context]?.files ?? [];
const messageAttachments = options.req?.body?.files ?? [];
const allFiles = [...contextFiles];
const seenFileIds = new Set(contextFiles.map(f => f?.file_id).filter(Boolean));

for (const file of messageAttachments) {
if (file?.file_id && !seenFileIds.has(file.file_id)) {
allFiles.push(file);
seenFileIds.add(file.file_id);
}
}

if (allFiles.length > 0) {
let toolContext = 'Context files available for anonymization:';
for (const file of allFiles) {
if (file) toolContext += `\n\t- ${file.filename} (${file.file_id})`;
}
toolContextMap.anymize = toolContext;
}

return new Anymize({
...authValues,
userId: user,
req: options.req,
contextFiles: allFiles,
});
},