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Gmail Reply Sender

Lets an agent reply to a Gmail message with proper threading, optional attachments, and drafts

Source Download skill
Repository
googleworkspace/cli
Stars
32,059
Licence
Apache-2.0
Files
1 file

What it does

This skill teaches an AI agent to reply to a specific Gmail message using the gws command-line tool. The agent supplies a message ID and reply text, and the reply is threaded correctly under the original conversation, with the original message quoted. It can also add recipients, attach files, send HTML formatted replies, or save the reply as a draft instead of sending it.

Great for

  • People who want an agent to answer Gmail threads they already have open
  • Users who want replies saved as drafts for review before sending
  • Developers automating routine email responses through the gws tool

Skip it if

  • Sending new emails that are not replies (use the general gmail skill instead), since this skill only handles replies
  • Replying to all recipients automatically, since the skill points to a separate reply-all command for that
  • Unattended sending without review, because replies go out to real people and cannot be recalled once sent

Try asking

  • “Reply to message 18f1a2b3c4d saying 'Thanks, got it!'”
  • “Reply to this thread and CC carol@example.com”
  • “Save a draft reply with the updated attachment before I review it”
  • “Send an HTML reply in bold to the latest message from my manager”
Step-by-step guide: how to use Gmail Reply SenderInstall, first run, examples, tips and FAQs

Install in 3 steps

  1. 1

    Download the skill

    The ZIP contains the 1 original files, the Apache-2.0 licence and an attribution note.

    gws-gmail-reply.zip
  2. 2

    Add it to your agent

    Claude Code (all projects)

    mkdir -p ~/.claude/skills && unzip gws-gmail-reply.zip -d ~/.claude/skills/

    Claude Code / Agent SDK (this project only)

    mkdir -p .claude/skills && unzip gws-gmail-reply.zip -d .claude/skills/

    Claude apps (web/desktop): Settings → Capabilities → Skills → Upload skill, and choose the ZIP.

  3. 3

    Ask for the task

    No special command needed — the agent reads the skill's description and loads it when your request matches. Try one of the prompts above.

Get better results

  • Use --dry-run first to see the request before anything is sent, or --draft to review in Gmail
  • Check recipients carefully, since --cc, --bcc and --to add people to the reply
  • If the gws tool or shared auth is missing, run gws generate-skills as the skill instructs

What's inside

  • SKILL.md

Redistributed unmodified from googleworkspace/cli under the Apache-2.0 licence. The assessment was drafted with AI from the skill's files on 2026-10-29. Skills can instruct your agent to run code — read SKILL.md and any scripts before installing.