avelikiy/great_cto · skills/lifecycle-messaging/SKILL.md

lifecycle-messaging skillA

lifecycle-messaging is agent-read markdown (skill) from avelikiy/great_cto: Email/SMS lifecycle and deliverability framework for SMB Product-Builder products that send transactional or lifecycle messages (booking reminders, CRM sequences, receipts, win-back). Codifies provider selection (Resend/Postmark/Twilio/SendGrid), domain auth (SPF/DKIM/DMARC), consent and compliance (TCPA, CAN-SPAM, CASL, quiet hours, double opt-in), suppression-list discipline, and the transactional-vs-marketing split. Applied by integrations-engineer and senior-dev whenever a feature sends mess.

Indexed from public GitHub and served as immutable, content-addressed versions. Install it pinned to an exact SHA-256 with the mdr CLI, and every file is verified against the hash recorded here before it reaches your agent. The deterministic audit below grades the latest version, and the same file always earns the same grade.

How to install

Latest version
mdr add avelikiy/great_cto/lifecycle-messaging@git:20260621.5a3d9b2
Exact content
mdr add avelikiy/great_cto/lifecycle-messaging@sha256:96a3bb3de33c2ebf

Pin to a label to follow the author's releases, or to a sha256 to freeze the exact bytes forever. Either way the resolved hash is written to mdr.lock, and mdr install reproduces it on any machine.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_ucxxak2kbyf7ud7a.svg)](https://markdownregistry.com/a/art_ucxxak2kbyf7ud7a)

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Versions

versioncommittedcommitsizeaudit
git:20260621.5a3d9b2 latest2026-06-21 5a3d9b2 5,150 BA view

Audit of the latest version

A  17 of 17 checks passed. Deterministic, no model, same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (5150 bytes)
  • pass: No zero-width or bidi control characters
  • pass: No instruction hidden inside an HTML comment
  • pass: No link to an exfiltration or paste host
  • pass: No credential-shaped string
  • pass: No instruction to send local credentials anywhere
  • pass: No text hidden with inline styles
  • pass: No prompt-injection phrasing
  • pass: No curl or wget piped into a shell
  • pass: No recursive delete of root, home or parent
  • pass: No instruction to read or print local credentials
  • pass: No base64 blob over 200 characters
  • pass: No link to a raw IP address
  • pass: No script tag

Source

GitHub

avelikiy/great_cto · 89 stars · license MIT · pushed 2026-09-06 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_ucxxak2kbyf7ud7a
GET https://markdownregistry.com/api/v1/resolve?ref=avelikiy/great_cto/lifecycle-messaging
GET https://markdownregistry.com/api/v1/blob/96a3bb3de33c2ebf457df0823873a9618030551aa45523639e65ddf173e02d70