Home / veneris-io / outbound-skills · GitHub

subject-line-writer SKILL.md skillA

subject-line-writer from veneris-io/outbound-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned

mdr add veneris-io/outbound-skills/subject-line-writer@git:20260907.a4d2452

Pins git:20260907.a4d2452 in mdr.lock. Pin the fingerprint instead.

Audit grade: A, 17 of 17 checks passed
Kind: SKILL.md skill
Repository: veneris-io/outbound-skills
Path: skills/subject-line-writer/SKILL.md
Versions recorded: 1
Latest version: git:20260907.a4d2452, committed Sep 7, 2026
Size: 2,048 bytes
Repository stars: 2
License: a license file GitHub does not identify

Drafts cold-email subject lines from real signals, scored against what actually earns opens in B2B — not clickbait, not cleverness. Works with any sender; not locked to one provider.

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

# Subject Line Writer

Draft a subject line based on the **signal**, the **persona**, and the **frame** — never on template inventory. Approve before use.

## Inputs
- Signal (what changed at the account in the last 90 days, e.g. hiring, expansion, tooling, compliance)
- Role of the recipient (who owns the consequence)
- Frame: question, observation, or data — pick one, not all three
- Optional: sender's proof anchor (a client type, a number, a category)

## Rules
1. **Signal over cleverness.** A fact about *what changed* beats wordplay about their business. "You opened 3 enterprise AE roles this quarter" survives; "You'll love this" doesn't.
2. **Specific numbers beat adjectives.** "$14,200 in ramp cost" > "big savings."
3. **Stop at 60 characters / ~7 words.** Mobile truncation is real; ambiguity is a tax.
4. **No spam triggers, ever.** Words like "free," "guarantee," "limited time," "opportunity," or fully capitalized words route to spam scoring on modern gateways.
5. **Match the sender.** The subject is a contract: what they open on must be answered inside. If you promised a question, don't pivot to a pitch.

## Approval
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint

mdr add veneris-io/outbound-skills/subject-line-writer@sha256:d8bed658bc15a279

The line at the top of this page pins the label git:20260907.a4d2452, 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.

Badge

[![mdr](https://markdownregistry.com/badge/art_tx4xc7guvcqjknh6.svg)](https://markdownregistry.com/a/art_tx4xc7guvcqjknh6)

3 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 1 version of this file, committed on Sep 7, 2026.

version	committed	commit	size	audit
git:20260907.a4d2452 latest	2026-09-07	a4d2452	2,048 B	A	view

Audit of the latest version

A 17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the 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 (2048 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

veneris-io/outbound-skills · 2 stars · license a license file GitHub does not identify · pushed 2026-09-07 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_tx4xc7guvcqjknh6
GET https://markdownregistry.com/api/v1/resolve?ref=veneris-io/outbound-skills/subject-line-writer
GET https://markdownregistry.com/api/v1/blob/d8bed658bc15a279048a49a8b67e688137ad594609a7aad6580e28c27540690d

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.

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