Use when Codex, Hermes, OpenClaw, Claude Code, Cowork, or another AI agent needs to plan, review, implement, audit, or improve email work focused on Claude-oriented email prompts, campaign drafting, critique loops, and human review. Triggers include requests about prompt packs, campaign draft evaluation, review rubrics, rewrite loops, and Claude Code email handoffs.
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 (2922 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
sequenzy/skills · 2 stars · license MIT · pushed 2026-09-05 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_tpxavfotqozjjjww
GET https://markdownregistry.com/api/v1/resolve?ref=sequenzy/skills/claudeemailskill
GET https://markdownregistry.com/api/v1/blob/cd6e4de65ea9311877f2d951404427160daf35072206f95504f0b9431af74340