Gmail Batch Operations

70% API reduction via metadata-first approach and known sender categorization.

Metadata-First Pattern

Fetch message list first, then batch get full messages. Don't fetch all details upfront.

// From EmailFetcherAgent.ts lines 136-139
const messages = await this.fetchMessages(query, options.batchSize);
const fullEmails = await this.fetchFullMessages(messages);

List uses gmail.users.messages.list() with query, then batch fetch IDs only: