email-and-misc-utils

A set of application rules and utilities for Gmail SMTP email, resume parsing, and encrypting bring-your-own-key (BYOK) data. It includes password-reset, verification, and welcome-email behavior.

In plain words
What is it for?
Use it when implementing registration emails, email verification, password resets, welcome messages, resume parsing, or BYOK encryption.
Why use it?
It provides defined handling for common account emails and related utility code, including when welcome messages should be sent.

Cursor rule for Claude Code

Install

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.

agentmods
npx agentmods add rules/eliornl/rolemule/email-and-misc-utils
Clone the repo
git clone --depth 1 https://github.com/eliornl/rolemule

Made for: Claude Code.

Per session 0 Nothing until a file matches its globs; then the whole rule loads.
When invoked 1,994 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What 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.

ModelPer sessionOnce invoked
Fable 5 $0.00000 $0.01994
Opus 5 $0.00000 $0.00997
Sonnet 5 $0.00000 $0.00399
Haiku 4.5 $0.00000 $0.00199

Measured yesterday against content hash 0c90cfbbbc9f, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

email-and-misc-utils scanned grade A with 0 findings 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 yesterday.

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.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

.claude/rules/email-and-misc-utils.mdc · 194 lines

How it starts

The opening of the file, as written. The whole thing — 194 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Email, Resume Parser & Encryption Utilities

Email Service (Gmail SMTP)

from utils.email_service import EmailService

email_service = EmailService()

await email_service.send_password_reset_email(
    to_email="[email protected]",
    reset_token="token",
    reset_url="https://app.example.com/auth/reset-password?token=xxx",
)
await email_service.send_verification_email(
    to_email="[email protected]",
    verification_token="token",
    verification_url="https://app.example.com/auth/verify-email?token=xxx",
)
await email_service.send_welcome_email(to_email="[email protected]", user_name="Jane Doe")

When to Send the Welcome Email

  • Email/password registration: sent after successful POST /auth/verify-code (not at registration time, so unverified users don't get it).
  • Google OAuth new user: sent immediately inside the OAuth callback after the new user record is committed — Google has already verified the email. Existing Google users logging in again do not get a second welcome email.

Email Design Standards (all three transactional emails must match)

All three emails — welcome, password reset, and verification code — share the same structural and visual template:

Property Value
Outer container max-width 580px
Card border-radius 20px
Header corner radius 20px 20px 0 0
Footer corner radius 0 0 20px 20px
Title (h1) font size 28px
Subtitle text "One mule for every role."
Greeting (h2) font size 22px, font-weight: 600
Page background #0d1117
Card background #161b22
Accent gradient linear-gradient(135deg, #00d4ff 0%, #7c3aed 100%)

Never deviate from these values when editing a single email — update all three together to keep them consistent.

Absolute URLs in Email Templates — Always Use settings.base_url

Email clients (Gmail, Outlook, etc.) do not resolve relative URLs. Every link or button inside an email must be an absolute URL built from self.settings.base_url:

Read the full file on GitHub · 194 lines

Changes

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.

  1. yesterday First seen · 194 lines · 0 tokens per session scan A 0c90cfbbbc9f

Subscribe to this mod's changes

email-and-misc-utils is a cursor rule published in the GitHub repository eliornl/rolemule (37 stars, last pushed 2d ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 1,994 tokens. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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