Four messages that get firmer by facts, not by adjectives.
A sequence of reminders for an overdue freelance invoice, each one clear enough to be forwarded to a client's accounts team.
A late invoice usually gets one of two responses from the freelancer: a cheerful nudge that is easy to ignore, or an angry email that is hard to forward. Neither tells the person in accounts what to do. Many overdue invoices were simply misplaced.
Late Payment Chase begins by verifying the invoice was received, then writes four messages that escalate through specifics: invoice number, amount, due date, payment details, and a deadline. Fees and interest are included only if your contract supports them.
What it produces.
- →A first-day reminder that assumes an oversight
- →A firm follow-up with a requested payment date
- →A notice that names the date work will pause
- →A final message offering a call and stating the next step
- ✦Freelancers with an invoice a few days or weeks overdue
- ✦Studios that dislike chasing money and put it off
- ✦Anyone who wants chasers they would be happy to see forwarded
- →late-payment-chase.zip: a native Claude Skill. Upload to Settings → Skills in Claude, or unzip to
~/.claude/skills/ - →late-payment-chase-skill.md: plain markdown. Works in ChatGPT Custom GPTs, Gemini, Claude Projects, agent system prompts, anywhere
- →A README inside the zip with install steps for Claude, ChatGPT, and Gemini
No subscription · free updates within v1.x
Works as a Claude Skill (.zip) and as a plain .md for ChatGPT, Gemini & every LLM
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Before you buy.
How is this different from just asking Claude directly?
Asked cold, Claude writes one polite reminder or one stern letter. This Playbook builds the whole sequence with timing, checks the facts and your contract before any fee is mentioned, and removes accusations so each message holds up if the client's finance team reads it.
How is this different from a Tool?
Playbooks are systematically produced to a fixed template and priced accordingly ($12.99). Tools are hand-built, one at a time, and go deeper ($39 to $199). A Playbook gives you a reliable method for routine work; a Tool is for when the judgment matters more than the format.
Will this work with ChatGPT, Gemini, and other LLMs?
Yes. You get a native Claude Skill (.zip) that auto-invokes in Claude, plus a plain .md you can paste into a ChatGPT Custom GPT, a Gemini system prompt, or any LLM. The procedure travels with the file.
Can I share this with my team?
It's licensed for your own personal and professional use. The output it produces is yours to circulate. To put the Playbook itself in the hands of a whole team, email hello@authority.md about team licensing.
What if it doesn't work for me?
If the file hasn't been delivered, or arrives defective or empty, we refund in full: see our refund policy.