Tested skills for the jobs you do every week.

Plain-text skills for any assistant that reads SKILL.md, and a paste-in prompt for any chatbot.
21 free skills, 9 paid skills and packs live, 50 more arriving soon.

I use Claude Code, Codex, Cursor or Gemini CLI

npx skills add proskillpacks/skills

I use ChatGPT or another chatbot

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A skill is a short instruction file your assistant follows for one job. You paste in your text or a link and get work back, with a before and after on each page.

Animated demo of Skill Portability Check on a real example: the input goes in and the finished result appears. The still shows the final result.

See one run

Skill Portability Check on a real example: what goes in, what comes out. Press play, or open the skill page for the full before and after.

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Everything new

30 skills and packs

PackShopify stores

Store Ops Pack

Six skills for the Shopify jobs that eat the week, in one download.

Every skill in the pack was tested on real public Shopify stores or real public merchant cases and scored against a written rubric.

$29See details
Free skillFreelancers

Late Payment Chaser (UK)

One unpaid invoice in. The statutory interest and fixed recovery sum worked out with a script, and three reminder emails out. UK business debts only.

3 real tests built on the facts of published UK court judgments.

FreeSee details
PackRental hosts

Host Ops Pack

Six skills for the listing, review and house-rules jobs of hosts who run their own listings.

Each of the six skills has 4 tests on real public data, scored by hand against a written rubric.

$29See details
Free skillMarketers and agencies

Search Intent Page Brief

Give it a keyword and the pages that rank. Get the search intent, a coverage table, the gaps and an outline. Free, MIT-licensed.

1 real-data run on three public how-to pages (Claude Sonnet).

FreeSee details
Free skillDevelopers

Test Gap Finder

Give it a diff and the tests. Get each behaviour the change adds marked Covered, Not covered or Unknown, and ranked test cases for the gaps.

1 real-data run on a public multi-hunk change in the Express repository (Claude Sonnet).

FreeSee details
Free skillSpreadsheets

CSV Profile and Sanity Check

Give it a CSV. Get a read-only profile of every column, flags and questions for the data's owner. Free, MIT-licensed.

1 run on a real public CSV (Claude Sonnet) with the script.

FreeSee details
Free skillCareers

Job Post Decoder

Paste a job post. Get what the job is, firm and wish requirements, what is missing and questions for the recruiter. Free, MIT-licensed.

1 run on a real public job post (Claude Sonnet).

FreeSee details
Free skillSales and outreach

Cold Email Checker

Give it a cold email draft and the prospect's page text. Get a verdict, a claims table and a tightened version. Free, MIT-licensed.

1 run on a draft we wrote with common flaws and text from a real public homepage (Claude Sonnet).

FreeSee details
Free skillWriting

Fact-Claim Checker

Paste a draft before you publish. Get the claims that need a source, ranked by risk, what would settle each, and safer wording for the ones you cannot back up.

1 real-data run on a public launch post (Claude Sonnet).

FreeSee details
Free skillFinance and admin

Invoice Checker

Give it an invoice. Get the totals recomputed, every difference, missing fields and consistency flags. No tax advice. Free, MIT-licensed.

1 run on a sample invoice we wrote with planted errors (Claude Sonnet).

FreeSee details
Free skillSupport

Angry Customer Reply Check

Give it the complaint, your draft reply and your policy. Get a check of promises, facts and tone, and a repaired draft. Free, MIT-licensed.

1 run on a complaint, draft and policy we wrote (Claude Sonnet).

FreeSee details
Free skillShopify stores

Review Reply Drafter

A reply for every review, matched to its tone, with the risky ones flagged for you.

Tested on 3 real public review sets (Judge.me and Trustpilot).

FreeSee details
Single skillRental hosts

Listing Rewriter

Three titles under 50 characters and a description within 500, built only from your own facts.

Tested on 4 real public listings.

$5See details
Free skillMarketers and agencies

AI Search Readiness Check

Can ChatGPT, Perplexity and Google read a website? A score out of 100 from 8 checks, the evidence and the fixes in order.

Tested on 8 real public websites, as a skill and (four of them) as a pasted prompt, two also on a second model, then re-scored after two independent reviews.

FreeSee details
Free skillDevelopers

Skill Portability Check

A free checker for SKILL.md folders: strict-YAML trap, portable keys, vendor tool names, missing fallbacks, broken links. One Python file, exit code for CI.

Run over our own 57 skills and its four fixtures (5 checks pass).

FreeSee details
Single skillShopify stores

Support Macro Writer

Ready-to-import replies built from your real shipping and returns policies.

Tested on 4 real public Shopify stores with Gorgias, Zendesk, Shopify Inbox and neutral output, scored against a written rubric.

$5See details
Free skillDevelopers

README First-Run Check

Point it at a repo. It follows the README like a new user and checks every step against the repo: OK, BROKEN, MISSING or UNVERIFIED, with evidence and the README edits that fix it.

1 real-data run on a public MDN tutorial repository (Claude Sonnet).

FreeSee details
Free skillShopify stores

Product Title Cleaner

One consistent title pattern across the catalogue, as an import CSV of changed rows only.

Tested on 3 real public Shopify catalogues, up to 490 products.

FreeSee details
Free skillDevelopers

PR Description and Review Prep

Run it on your branch. Get a PR title, summary, risk notes and test plan from the diff, plus the questions a reviewer will ask. Free, MIT-licensed.

1 real-data run on four public commits (Claude Sonnet).

FreeSee details
Single skillShopify stores

Product SEO Fixer

A prioritised fix list with the exact text to paste, for a product, a collection or a product export CSV.

Tested on 5 real public Shopify stores across all three modes.

$5See details
Free skillDevelopers

Changelog from Commits

Give it a commit range or a pasted git log. Get a user-facing changelog with the commit behind every line, and the vague commits flagged.

1 real-data run on the public Express repository (Claude Sonnet, 15 commits).

FreeSee details
Free skillShopify stores

Policy Checker

Policy gaps and contradictions across refund, shipping, privacy and terms, with fixes to paste.

Tested on 4 real public Shopify stores.

FreeSee details
Free skillDevelopers

Accessibility Quick Audit

Give it a page's HTML or components. Get accessibility issues ranked by impact, with the WCAG criterion, the code and a fix. Free, MIT-licensed.

1 real-data run on a public demo page built with known accessibility faults (Claude Sonnet).

FreeSee details
Single skillShopify stores

Product Description Rewriter

Clean Shopify HTML descriptions with an SEO title and meta description, for one product or a collection.

Tested on 4 real public Shopify stores and one product export CSV.

$5See details
Free skillShopify stores

Chargeback Evidence Checklist

Got a chargeback? The evidence to gather for your dispute reason, what you already have, and where to find each piece in Shopify.

Tested on 6 real disputes from the Shopify Community forum.

FreeSee details
Single skillShopify stores

Chargeback Response Writer

A dispute response matched to the reason code. It never invents evidence.

Tested on 6 real dispute scenarios from the Shopify Community forum.

$5See details
Free skillShopify stores

Alt Text Writer

Alt text for every product image, written while looking at the photo, as an import CSV.

Tested on 6 real cases from public Shopify stores, including three product export CSVs.

FreeSee details
Single skillShopify stores

BFCM Campaign Kit

Offer maths on your real prices, a dated calendar, 5 emails, 3 SMS and an ops checklist.

Tested on 4 real public Shopify stores (US and UK, low to high price points).

$5See details
Free skillShopify stores

Agent-Ready Quick Check

Six checks on how AI shopping agents read your store, compared with 99 stores we audited.

Tested on 4 real public Shopify stores.

FreeSee details
Single skillShopify stores

Agent-Ready Store Audit

A 0 to 100 score for how AI shopping agents read your store, with the top 7 fixes.

Tested on 4 real public Shopify stores.

$5See details

Arriving soon

Not for sale yet. Dates are targets and prices are as planned. Follow below to see when they land.

Single skillArriving 5 OctDevelopers

AI-Code Launch Safety Review

Point it at a project before launch. Get findings with file and line proof, a fix for each, and a plain list of what it did not check.

Single skillArriving 5 OctSales and outreach

Cold Email from a Website

Give it a prospect's URL and what you sell. Get a 3-email sequence built on what is actually on their site, with every observation sourced.

Single skillArriving 5 OctMarketers and agencies

Landing Page Copy Rewrite

A sharper first screen for a landing page, built only from facts on the page, with every unsupported claim flagged.

Single skillArriving 5 OctMarketers and agencies

Local Business Fix

Name, address, phone and hours compared across a local business site, and LocalBusiness structured data whose values are checked against the site text.

Single skillArriving 5 OctMarketers and agencies

Page Fix Sheet

One page in: pass, warn or fail on 9 on-page SEO checks, and a new title and meta description built from the page's own facts, counted to fit.

Single skillArriving 5 OctCareers

Resume Bullet Rewriter

Paste your resume bullets and a job post. Get clearer bullets with every unconfirmed number marked, and a table of what the job asks that you do not yet show.

Single skillArriving 5 OctSpreadsheets

Spreadsheet Formula and Cleanup

Describe the result you want and paste a few rows. Get a formula that fits your columns, tested on your sample, with the edge cases listed.

Single skillArriving 5 OctWriting

Voice-Matched Draft Editor

Give it two or three things you wrote and a draft. It edits the draft to sound like you, keeps every fact, and flags claims it cannot support.

Single skillArriving 6 OctMarketers and agencies

Ad Copy Variant Grid

Give it your offer and audience. Get 15 Google headlines and 4 descriptions, or Meta variants, one angle per row, every length counted by a script.

PackArriving 6 OctMarketers and agencies

Client Site Fix Kit

Five tested fixes for client websites, as prompts and Agent Skills: on-page SEO, local business details and landing page copy, plus a competitor gap brief and an article refresh that are only in the kit.

Single skillArriving 6 OctFinance and admin

Expense Categoriser

Give it a bank or card CSV. It groups by merchant, categorises only what is clear, asks about the rest and proves the category totals add up.

Single skillArriving 6 OctSpreadsheets

Messy CSV Cleaner

Give it a messy CSV. It profiles the file, plans every change with a risk label, applies the safe fixes to a copy and proves the result with before and after counts.

Single skillArriving 6 OctSales and outreach

Scope Creep Reply

Paste your agreed scope and the client's extra request. Get each ask marked in, out or unclear with the scope quoted, a friendly reply and a change-order paragraph.

Single skillArriving 6 OctSupport

Support Macro and Escalation Writer

Paste your policy and a few real customer messages. Get saved replies with the policy line quoted, an agent checklist and an escalation note for each case.

Single skillArriving 7 OctFreelancers

Brief to Proposal

Paste a client brief or tender notice and your profile. Get a requirement-by-requirement table, a proposal that answers each one, and the gaps to fill.

PackArriving 7 OctFreelancers

Client-Winning Pack

Four templates for answering a client brief: brief to proposal, a compliance check, a scope of work and a discovery call brief.

Single skillArriving 7 OctFreelancers

Discovery Call Brief

Give it a prospect's website before a first call. Get a one-page brief from their own pages, every fact quoted and linked, plus questions to ask.

Single skillArriving 7 OctRental hosts

Guest Review Reply

A public reply that is true as it stands, a private to-do list, and a flag on reviews that need your judgement.

Single skillArriving 7 OctRental hosts

House Rules and Guidebook

Calm house rules and a house manual built only from what you stated, with a list of what is missing.

Single skillArriving 7 OctRental hosts

Listing Audit

A score out of 100 from 16 checks against Airbnb's published guidance, with a fix list in order of points lost.

Single skillArriving 7 OctFreelancers

Proposal Compliance Check

Paste the brief and your draft. Get a 0 to 100 coverage score, each requirement marked met, partly met, missing or breached, and a ranked fix list.

Single skillArriving 7 OctRental hosts

Review Insights

What guests keep raising, good and bad, with checked counts, exact quotes and a fix list.

Single skillArriving 7 OctFreelancers

Scope of Work Builder

Paste the brief for a job you have won. Get a scope of work with numbered deliverables, exclusions, client inputs, milestones and a payment schedule.

Single skillArriving 8 OctSales and outreach

Case Study from Project Notes

Paste rough project notes and any real numbers. Get a one-page case study that uses only those facts, with a fact sheet and an approvals list.

Single skillArriving 8 OctSales and outreach

Follow-Up Ladder

Paste a stalled lead's history. Get four follow-ups with falling pressure, subject lines and send gaps, using only facts from the history.

Single skillArriving 8 OctMarketers and agencies

Google Business Profile Kit

Give it a local business's facts. Get a profile description within the limit, services, 10 posts, Q&A and honest review requests.

Single skillArriving 8 OctDevelopers

Incident Postmortem Writer

Paste the chat, alerts and timeline. Get a blameless postmortem with stated facts separated from inference, and action items tied to causes.

Single skillArriving 8 OctCareers

Interview Scorecard Builder

Paste a job post. Get role outcomes, 5 to 6 competencies traced to the post, questions with probes, a 1 to 4 rubric with anchors and an interview plan.

Single skillArriving 8 OctMarketers and agencies

Local Service Page Writer

Give it a local business's facts, a service and a place. Get a full page with title, meta, FAQ and a structured data block, built only from your facts.

Single skillArriving 8 OctRental hosts

Photo Description Writer

A visual description for each listing photo, important details first, under 250 characters.

Single skillArriving 8 OctSales and outreach

Quote and Estimate Builder

Give it a job and your rate card. Get an itemised quote with exact totals from a script; anything unpriced is marked PRICE NEEDED.

Single skillArriving 8 OctSpreadsheets

Survey Results Summariser

Paste a survey export. Get counts with the base size, themed open-text answers with quotes, and a plain list of what the data cannot support.

PackArriving 9 OctSpreadsheets

Data and Spreadsheets Pack

4 tested skills for analysts, operations staff and small business owners, one download. 36 USD if bought one by one.

Single skillArriving 9 OctDevelopers

Dependency Upgrade Risk Brief

Give it a dependency upgrade and your code. A script classifies every bump, the skill quotes the release notes, finds the breaking changes that hit your code and gives an upgrade order, tests and a rollback.

PackArriving 9 OctDevelopers

Developers Pack

4 tested skills for developers and small engineering teams, one download. 36 USD if bought one by one.

Single skillArriving 9 OctDevelopers

Env and Secrets Leak Check

Point it at a repository. A script finds committed secrets and risky env files, in files and recent history, with every value masked. You get a triage and the clean-up in the right order.

PackArriving 9 OctMarketers and agencies

Marketing and SEO Pack

6 tested skills for small agencies, freelancers and local businesses, one download. 54 USD if bought one by one.

PackArriving 9 OctSales and outreach

Sales and Client Work Pack

5 tested skills for freelancers, consultants and small agencies, one download. 45 USD if bought one by one.

PackArriving 10 OctCareers

Careers Pack

4 tested skills for job seekers, one download. 36 USD if bought one by one.

Single skillArriving 10 OctCareers

Cover Letter from Job Post and Resume

Paste a job post and your resume. You get a 250-word letter with every claim traced to your resume, and the gaps listed.

Single skillArriving 10 OctSupport

Help Article from Tickets

Paste several tickets on one problem. You get a help article with each step labelled by who gave it, and a list of conflicts to settle.

Single skillArriving 10 OctCareers

Interview Answer Builder

Paste a question and rough notes. You get a STAR outline, a 90-second spoken answer, the likely follow-ups and what not to say.

Single skillArriving 10 OctWriting

Long Post to Thread and Summary

Paste a long post. You get a summary, takeaways, a thread with every length counted, a network post and exact pull quotes, nothing added.

Single skillArriving 10 OctWriting

Newsletter Issue from Notes

Paste your notes and links. You get one newsletter issue with subject lines, sections and a closing, every fact traced to your notes.

Single skillArriving 10 OctSupport

Refund and Exception Decision Helper

Paste your policy and one case. You get the policy lines, an exact day count, the options with their cost, a suggestion, and a draft reply.

Single skillArriving 11 OctSupport

Bug Report from Customer Message

Paste one customer message about something not working. You get a bug report for engineering, the questions still to ask, and a short reply, with what the customer said kept apart from guesses.

PackArriving 11 OctWriting

Content and Writing Pack

4 tested skills for writers, creators and team leads, one download. 36 USD if bought one by one.

PackArriving 11 OctSupport

Customer Support Pack

4 tested skills for small support teams, one download. 36 USD if bought one by one.

Single skillArriving 11 OctWriting

Meeting Notes to Decisions and Actions

Paste meeting notes or minutes. You get the decisions, an action table with owner and due date, and the open questions, with a quote from the notes behind every line.