I use Claude Code, Codex, Cursor or Gemini CLI
npx skills add proskillpacks/skillsI use ChatGPT or another chatbot
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.

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.
Latest
- Study What the most-installed agent skills actually do 4 Oct
- Study What store owners were told about their stores 4 Oct
- Study We re-tested 69 skills on harder inputs. 16 failed. Here is what broke. 4 Oct
All-Access Bundle
47 skills in 11 categories, in one download, and the skills we add later. Not for sale yet; the date is a target.
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.
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.
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.
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).
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).
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.
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).
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).
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).
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).
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).
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).
Listing Rewriter
Three titles under 50 characters and a description within 500, built only from your own facts.
Tested on 4 real public listings.
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.
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).
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.
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).
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.
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).
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.
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).
Policy Checker
Policy gaps and contradictions across refund, shipping, privacy and terms, with fixes to paste.
Tested on 4 real public Shopify stores.
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).
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.
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.
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.
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.
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).
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.
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.
No match. Try fewer words, or clear the filters. Request this skill.
Arriving soon
Not for sale yet. Dates are targets and prices are as planned. Follow below to see when they land.
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.
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.
Landing Page Copy Rewrite
A sharper first screen for a landing page, built only from facts on the page, with every unsupported claim flagged.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
House Rules and Guidebook
Calm house rules and a house manual built only from what you stated, with a list of what is missing.
Listing Audit
A score out of 100 from 16 checks against Airbnb's published guidance, with a fix list in order of points lost.
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.
Review Insights
What guests keep raising, good and bad, with checked counts, exact quotes and a fix list.
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.
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.
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.
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.
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.
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.
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.
Photo Description Writer
A visual description for each listing photo, important details first, under 250 characters.
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.
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.
Data and Spreadsheets Pack
4 tested skills for analysts, operations staff and small business owners, one download. 36 USD if bought one by one.
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.
Developers Pack
4 tested skills for developers and small engineering teams, one download. 36 USD if bought one by one.
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.
Marketing and SEO Pack
6 tested skills for small agencies, freelancers and local businesses, one download. 54 USD if bought one by one.
Sales and Client Work Pack
5 tested skills for freelancers, consultants and small agencies, one download. 45 USD if bought one by one.
Careers Pack
4 tested skills for job seekers, one download. 36 USD if bought one by one.
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.
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.
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.
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.
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.
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.
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.
Content and Writing Pack
4 tested skills for writers, creators and team leads, one download. 36 USD if bought one by one.
Customer Support Pack
4 tested skills for small support teams, one download. 36 USD if bought one by one.
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.
Follow for new free skills
New free skills and guides appear in all of these as we publish them. Pick whichever you already use.
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