gws-gmail-reply

Automatically reply to Gmail messages with full threading and recipient management. Handles message threading automatically by setting In-Reply-To, References, and threadId headers; quotes the original message in the reply Supports plain text and HTML reply bodies, with optional file attachments (multiple files via repeated --attach flags) Allows adding extra recipients via --to, --cc, and --bcc flags, or sending from an alias with --from Includes --dry-run mode to preview the request before sending, and --html flag for formatted replies with CSS styling

INSTALLATION
npx skills add https://github.com/googleworkspace/cli --skill gws-gmail-reply
Run in your project or agent environment. Adjust flags if your CLI version differs.

SKILL.md

gmail +reply

PREREQUISITE: Read ../gws-shared/SKILL.md for auth, global flags, and security rules. If missing, run gws generate-skills to create it.

Reply to a message (handles threading automatically)

Usage

gws gmail +reply --message-id <ID> --body <TEXT>

Flags

Flag

Required

Default

Description

--message-id

Gmail message ID to reply to

--body

Reply body (plain text, or HTML with --html)

--from

Sender address (for send-as/alias; omit to use account default)

--to

Additional To email address(es), comma-separated

--attach

Attach a file (can be specified multiple times)

--cc

CC email address(es), comma-separated

--bcc

BCC email address(es), comma-separated

--html

Treat --body as HTML content (default is plain text)

--dry-run

Show the request that would be sent without executing it

--draft

Save as draft instead of sending

Examples

gws gmail +reply --message-id 18f1a2b3c4d --body 'Thanks, got it!'

gws gmail +reply --message-id 18f1a2b3c4d --body 'Looping in Carol' --cc carol@example.com

gws gmail +reply --message-id 18f1a2b3c4d --body 'Adding Dave' --to dave@example.com

gws gmail +reply --message-id 18f1a2b3c4d --body '<b>Bold reply</b>' --html

gws gmail +reply --message-id 18f1a2b3c4d --body 'Updated version' -a updated.docx

gws gmail +reply --message-id 18f1a2b3c4d --body 'Draft reply' --draft

Tips

  • Automatically sets In-Reply-To, References, and threadId headers.
  • Quotes the original message in the reply body.
  • --to adds extra recipients to the To field.
  • Use -a/--attach to add file attachments. Can be specified multiple times.
  • With --html, the quoted block uses Gmail's gmail_quote CSS classes and preserves HTML formatting. Use fragment tags (, , , etc.) — no / wrapper needed.
  • With --html, inline images in the quoted message are preserved via cid: references.
  • Use --draft to save the reply as a draft instead of sending it immediately.
  • For reply-all, use +reply-all instead.

See Also

  • gws-gmail — All send, read, and manage email commands
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