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Add growthcab-gtm-skills plugin (Business Sales) - #578

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federicodon:add-growthcab-gtm-skills

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Adds growthcab-gtm-skills to Business Sales as an external link. One line in README.md, appended at the end of the section.

The repo is a Claude Code plugin marketplace (growthcab-gtm-skills) with one plugin (gtm-diagnostics) that bundles four skills:

  • cold-email-domain-check: MX, SPF (10-lookup limit), DKIM, DMARC, domain age, website and Spamhaus DBL, scored out of 100
  • cold-email-grader: grades a cold email on ten checks and quotes the sentences that lose points
  • lead-list-qa: checks a lead list CSV for duplicates, invalid, role-based, free-mail and disposable emails, domain mismatch, missing fields and the seniority mix
  • meeting-show-rate-benchmark: compares booked meetings with an open dataset of 1,380 booked B2B meetings by lead time, weekday and seniority

Install:

/plugin marketplace add federicodon/growthcab-gtm-skills
/plugin install gtm-diagnostics@growthcab-gtm-skills

Scripts use the Python standard library only. Code is MIT, benchmark data is CC BY 4.0.

Disclosure: I am the author and maintain the repo, which I built at Growth Cab. No account or API key is needed. Each SKILL.md ends with a one-line note linking to the related Growth Cab service page.

🤖 Generated with Claude Code

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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