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Cold email subject line ideas v1.0.0

Use this resource to generate or critique outreach email subject lines

New

  • 529 downloads
  • 102 likes
  • 121 saves

Free

Install with the CLI

In a terminal, from the folder you want:

npx --yes palatekit@latest install cold-email-subject-line-ideas

With no option, the skill goes to ~/.agents/skills/; add --agent claude-code (or codex, cursor…) to target an agent.

First time: connect the CLI with

npx --yes palatekit@latest login

The agent produces five subject lines across four formula families, checks that they stay short and free of spam triggers, then rates the ones you submit. You get suggestions to test and comments on existing subjects.

Mostly picked by

Updated November 2, 2026

Card for the “Cold email subject line ideas” skill

Details

Works in
Install guides
Generates with
Your agent's model
Licence
MIT

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What you get

  • SKILL.md: the four formula families and the constraints for each subject
  • SKILL.md: reference notes on high-performing subjects and critique mode

Good fit for

  • You launch a sequence and want to test several subjects
  • Your open rate is dropping and you want to revise your subjects

Not for

    Tags

    • subject line
    • cold email
    • outreach
    • formulas
    • open rate

    About

    You say

    “Suggest five subject lines for an email to finance directors facing delayed month-end closing.”

    Card for the “Cold email subject line ideas” skill

    Skill published by aiskillstore under the MIT license, delivered in its original version.

    Show more

    How to use it

    1. Install the skill in your agent's skills folder
    2. Ask your agent to generate or critique outreach email subject lines
    3. Review and adjust the result

    Content preview

    Files

    • LICENSE1.3 KB
    • NOTICE-PALATEKIT.md0.5 KB
    • skill-report.json20.3 KB
    • SKILL.md3.7 KB

    Origin and licence

    Listed unmodified

    Author
    aiskillstore
    Source
    github.com/aiskillstore/marketplace/tree/81dcba714ae5ba0c5bcfb8914fb9bc2fbb2bb48a/skills/cmj-hub/cold-email-subject-lines
    Licence
    MIT

    Notice

    « cold-email-subject-lines » (aiskillstore, MIT) livré dans sa version d'origine : fiche en français et en anglais par PalateKit.

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