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mail.google.com

Mark Gmail thread as read

Mark a Gmail thread as read by its hex threadId. Returns read, threadId, the All Mail page it was found on, and already_read. Acts from the All Mail list, scanning the first 4 pages (~200 newest threads). Safe to repeat: a thread that is already read returns already_read:true without clicking anything. Waits for Gmail to persist the change rather than returning on the optimistic row restyling, so the mail really is read once the run ends.

Input

threadId required

Hex legacy thread id (as returned by search_emails).

account optional

Google account email to act as (authuser=). Without it Gmail picks u/0, nondeterministic in a multi-account browser jar.

Output

read required
threadId required
page optional

Which All Mail page the thread was found on (1-based).

already_read optional

true = the thread was already read; nothing was clicked.

FAQ

Mark a Gmail thread as read by its hex threadId. Returns read, threadId, the All Mail page it was found on, and already_read. Acts from the All Mail list, scanning the first 4 pages (~200 newest threads). Safe to repeat: a thread that is already read returns already_read:true without clicking anything. Waits for Gmail to persist the change rather than returning on the optimistic row restyling, so the mail really is read once the run ends.
Required: threadId. Optional: account.
It returns page, read, threadId, already_read.
Yes. It acts as you on mail.google.com: on your own Chrome it reuses your session, and on a Reduck-hosted browser it loads the mail.google.com cookies saved by the Reduck extension.
It makes changes on mail.google.com, like sending, posting or booking something.
Ask an AI agent connected to Reduck to run reduck/mail.google.com/mark_read, or run it from a terminal with the Reduck CLI: npx @reduck-ai/cli@latest run --script reduck/mail.google.com/mark_read
It is part of Reduck's official curated catalogue.

Related scripts

mail.google.com

Search Gmail

Search the signed-in Gmail with the native query syntax (from:, to:, subject:, has:attachment, after:/before:, labels…) and return matching threads: threadId (feed it to get_thread / reply_to_email), sender, senderEmail, subject, snippet, date, unread, starred, hasAttachment. Results are threads rather than individual messages, which is Gmail's own search granularity, and only the first page of results is returned (up to 50).

mail.google.com

Send Gmail email

Send an email from the signed-in Gmail account, with a plain-text body and an optional single file attachment.

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Forward Gmail thread

Forward an entire Gmail thread to one recipient, with an optional leading note. Takes the hex threadId that search_emails returns, and forwards the whole conversation inline rather than a single message. Returns forwarded, threadId and to. The thread must be on the first page of All Mail, newest-first, so older conversations cannot be reached this way.

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