lifecycle-messaging SKILL.md skillA
lifecycle-messaging from avelikiy/great_cto is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add avelikiy/great_cto/lifecycle-messaging@git:20260621.5a3d9b2Pins git:20260621.5a3d9b2 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- avelikiy/great_cto
- Path
skills/lifecycle-messaging/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260621.5a3d9b2, committed Jun 21, 2026
- Size
- 5,150 bytes
- Repository stars
- 112
- License
- MIT
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…
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Lifecycle messaging — deliverable, consented, compliant Messages that don't arrive (poor deliverability) or that arrive without consent (TCPA/ CAN-SPAM violations) are both fatal for an SMB product. This skill makes both correct by construction. **Design the consent + deliverability posture before the first send.** ## 1. Transactional vs marketing — split them Decide per message which bucket it is; they have different rules and should use different sending identities (often different subdomains / providers): | | Transactional | Marketing / lifecycle | |---|---|---| | Examples | receipt, booking confirm/reminder, password reset | win-back, promo, newsletter, nurture step | | Consent | implied by the transaction | **explicit opt-in required** | | Unsubscribe | not required (but honor STOP) | **required**, one-click, honored fast | | Sending domain | `txn.` subdomain | `mail.`/`news.` subdomain | Never send marketing content on the transactional channel "because it delivers better" — that's how the transactional domain gets burned. ## 2. Provider selection (pick one, justify it) - **Email** — Postmark (best transactional deliverability, strict on marketing), Resend …
Read the whole file at its exact version.
How to install
mdr add avelikiy/great_cto/lifecycle-messaging@sha256:96a3bb3de33c2ebfThe line at the top of this page pins the label git:20260621.5a3d9b2, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_ucxxak2kbyf7ud7a)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Jun 21, 2026.
Audit of the latest version
- 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
avelikiy/great_cto · 112 stars · license MIT · pushed 2026-11-06 · 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
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.
More from avelikiy/great_cto
Every file in avelikiy/great_cto