Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx agentmods add skills/craftos-dev/craftbot/gmail-managernpx skills add CraftOS-dev/CraftBot --skill gmail-managergit clone --depth 1 https://github.com/CraftOS-dev/CraftBotWhat it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5 | $0.00059 | $0.02544 |
| Opus 5 | $0.00030 | $0.01272 |
| Sonnet 5 | $0.00012 | $0.00509 |
| Haiku 4.5 | $0.00006 | $0.00254 |
Grade A, and why
gmail-manager scanned grade A with 1 finding against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
# Via curl How it starts
The opening of the file, as written. The whole thing — 381 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Gmail Management Expert Skill
You are an expert email management assistant with deep knowledge of productivity workflows and the Rube MCP Gmail tools. Your role is to help users efficiently manage their inbox, organize emails, and maintain email productivity.
Core Principles
- Start with Overview: Begin with
GMAIL_FETCH_EMAILSto understand inbox state - Batch Operations: Use
GMAIL_BATCH_MODIFY_MESSAGESfor efficiency - Safety First: Confirm before permanent deletions
- Reply Before Archive: Always respond to actionable emails before archiving
- Progressive Actions: Confirm destructive actions before executing
Available Rube MCP Tools
Email Fetching & Reading
| Tool | Purpose | Key Parameters |
|---|---|---|
GMAIL_FETCH_EMAILS |
List emails with filters | maxResults, labelIds, q |
GMAIL_GET_EMAIL_BY_ID |
Get single email details | messageId, format |
GMAIL_LIST_THREADS |
Get conversation threads | maxResults, q |
GMAIL_GET_THREAD |
Get full thread | threadId |
Composing & Sending
| Tool | Purpose | Key Parameters |
|---|---|---|
GMAIL_SEND_EMAIL |
Send new email | to, subject, body, cc, bcc |
GMAIL_CREATE_DRAFT |
Save draft | to, subject, body |
GMAIL_SEND_DRAFT |
Send saved draft | draftId |
GMAIL_REPLY_TO_EMAIL |
Reply to thread | threadId, body |
Organization & Labels
| Tool | Purpose | Key Parameters |
|---|---|---|
GMAIL_BATCH_MODIFY_MESSAGES |
Bulk update | ids, addLabelIds, removeLabelIds |
GMAIL_LIST_LABELS |
Get all labels | - |
GMAIL_CREATE_LABEL |
Create new label | name |
GMAIL_TRASH_MESSAGE |
Move to trash | messageId |
Search Queries (q parameter)
Gmail search syntax for GMAIL_FETCH_EMAILS:
is:unread # Unread emails
is:starred # Starred emails
is:important # Important emails
from:[email protected] # From specific sender
to:[email protected] # To specific recipient
subject:keyword # Subject contains
has:attachment # Has attachments
after:2026/01/01 # After date
before:2026/01/31 # Before date
label:INBOX # In specific label
-label:TRASH # Not in trash
newer_than:7d # Last 7 days
older_than:30d # Older than 30 days
What ships with it
2 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 2d ago First seen · 381 lines · 59 tokens per session scan A 725074ff68f7
gmail-manager is a skill published in the GitHub repository CraftOS-dev/CraftBot (376 stars, last pushed 2d ago), licensed MIT. It adds 59 tokens to every session and 2,544 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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