Reply email

Skill marian-kamenistak/claude-email-assistant/skills/reply-email

An autonomous email triage and reply system built with Claude Code and Google Workspace CLI (gws).

Install

npx -y skills add marian-kamenistak/claude-email-assistant --skill reply-email

Assembled from the repository path, not quoted from the project. Check it against their README if it does not work.

One thing to look at

2 stars2 stars. Stars are a popularity signal and not a quality one, but at this level it is likely that nobody has read this closely except its author, and you would be relying on your own review.

What its author says it does

Copied from the file, not written here

Draft an email reply in your voice. Use when you want to reply to an email, draft a response, or answer a message.

SKILL.md

3.7 KB, as published. Nobody here has run it

Email Reply Skill

Draft email replies that sound like the user, not like AI.

Modes

Single reply (default)

/reply-email [message-id] or /reply-email + paste email text

Quick-reply shortcuts

/reply-email confirm [message-id] — 1-line confirmation
/reply-email schedule [message-id] — propose dates + calendar link
/reply-email followup [message-id] — gentle follow-up

Batch mode

When user says "draft all" or during morning triage:

List all emails needing reply
Draft all replies without asking
Save all as Gmail Drafts
Show summary with time estimates

Step 1: Get the email

# Fetch the full message
gws gmail users messages get --params '{"userId":"me","id":"MESSAGE_ID","format":"full"}' --format json

Step 2: Load voice context

Read these files before drafting (every time):

skills/reply-email/email-voice-guide.md — real examples of how you write
skills/reply-email/learned-replies.md — corrections from past sessions
shared/communication-style.md — writing rules

Step 3: Draft the reply

Rules

Open with the person's name (first name)
Get to the point in 1-2 sentences
Keep it short — if it can be 3 lines, make it 3 lines
Include calendar link when suggesting meetings
No pleasantries ("Hope this finds you well")
No corporate phrases ("Feel free to", "Don't hesitate to")
No AI words (leverage, navigate, unlock, empower, delve, foster, robust, holistic)

Final check

Read the draft out loud. Does it sound like a real person typing fast between calls? Or does it sound like AI being polite? If the latter, cut half the words.

Step 4: Save as Gmail Draft

Default: create a Gmail draft, NOT send.

# Build base64url-encoded RFC 2822 email
RAW=$(python3 -c "
import base64, email.message
msg = email.message.EmailMessage()
msg['To'] = 'RECIPIENT_EMAIL'
msg['Subject'] = 'Re: ORIGINAL_SUBJECT'
msg['In-Reply-To'] = 'ORIGINAL_MESSAGE_ID_HEADER'
msg['References'] = 'ORIGINAL_REFERENCES_HEADER'
msg.set_content('''REPLY_BODY_HERE''')
print(base64.urlsafe_b64encode(msg.as_bytes()).decode())
")

gws gmail users drafts create \
  --params '{"userId":"me"}' \
  --json "{\"message\":{\"threadId\":\"THREAD_ID\",\"raw\":\"$RAW\"}}"

Only send directly if user says "send it":

gws gmail +reply --message-id MESSAGE_ID --body "REPLY_TEXT"

Gmail label IDs

Configure these label IDs after creating them in Gmail (see INSTALL.md step 2b):

AI_READY_LABEL_ID=Label_XXX
INFO_LABEL_ID=Label_XXX
OPS_LABEL_ID=Label_XXX
HIGH_LABEL_ID=Label_XXX
BILLING_LABEL_ID=Label_XXX

To find your label IDs:

gws gmail users labels list --params '{"userId":"me"}' --format json

Step 5: Learn from the outcome

Immediate learning

When user gives feedback → incorporate, redraft, log correction.

Async learning (morning routine)

Fetch sent messages from last 24h
Cross-reference with drafts-log.md
Diff draft vs what was sent
Log corrections in learned-replies.md

What to learn from

Words removed → too verbose or corporate
Words added → missing natural phrasing
Structure changes → wrong format
Tone shifts → misjudged the relationship
Shortened replies → wrote too much (most common mistake)

Log format for drafts-log.md

### [YYYY-MM-DD HH:MM] [Thread ID] [Recipient]
**Subject:** Re: [subject]
**Draft ID:** [gmail draft id]
**Our draft:**
> [exact text]
**Status:** pending | sent-as-is | sent-with-edits | discarded