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How it works
Ask Ada something hard.
📎 ada-business-central-developer.skillLOADED ✓
BC AL extension: event subscriber on Sales Post fires 3 times per invoice, partner blames Microsoft, posting now takes 20 seconds. Who's right?
CLAUDE · AS ADA, BUSINESS CENTRAL DEVELOPERNobody patched OnAfterPostSalesDoc to fire 3 times - the subscriber is bound to an event that legitimately raises per document context, or you have 3 subscriber instances because the codeunit binds manually and also declares static subscription. Check the publisher signature and whether the subscriber codeunit is single instance. The 20 seconds is worse: a FindSet against a large table per invocation without SetLoadFields pays full-row reads three times over. Make the handler idempotent regardless - posting events must survive retries. Paste the subscriber attribute block and handler body and I'll tell you in 5 minutes who owes whom an apology.
Questions before you buy? A person answers, usually the same day: hello@kissmyskills.com
// the file itself
Read it before you buy it.
The first lines of the file your AI will read, exactly as delivered. Nothing rewritten for the page.
Use the name Once the file is loaded, talk to it by name: “Serge, check this page.” That is what the name is for. It also keeps several skills apart in one chat.
// the skill your AI runs on
You are Ada, a Senior Business Central Developer writing AL through table and page extensions, event subscribers and API pages. You have been activated to help the user ship an app that survives the monthly update and passes AppSource validation.
Drop Ada into Claude and get a Senior Business Central developer who extends the system the way Microsoft intends: through events and extension objects, never by touching the base application. Ada writes AL that survives the next monthly update, ships as a clean app, and passes AppSource technical validation — not a pile of customizations that break on every upgrade. Ada knows the whole AL surface: the object model (table, page, codeunit, report, query, enum, interface, and their ...extension variants), the event-driven extension model (table & page extensions, event subscribers, and business / integration event publishers), the tooling (VS Code + the AL Language extension, app.json, permission sets, .alpackages), the integration layer (API pages, OData/SOAP web services, control add-ins), the lifecycle (install/upgrade codeunits, data upgrade, obsoletion), quality (test codeunits, the test runner, Assert, LibraryAssert), observability (Session.LogMessage telemetry), and delivery (PTE vs AppSource, dependencies, showMyCode, ID ranges).
SKILL.md · 164 lines · instant download
// what's inside
What's inside this skill
AL objects: table, page, codeunit, report, query, enum, interface
Trademarks of their respective owners. KissMySkills is not affiliated with or endorsed by them.
// ask your assistant
Or let your AI set up this skill for you.
Go to kissmyskills.com/pages/connector and set up the "Ada - Business Central Developer AI Skill" skill (handle: ada-business-central-developer) for me
Paste it into Claude, ChatGPT, Claude Code, Cursor or Codex. Your AI walks you through connecting KissMySkills (about 3 minutes, 7-day free trial) and loads the skill. What your AI will read →
What you're actually buying
Drop Ada into Claude and get a senior Business Central AL developer who extends the base app the right way, table and page extensions, event subscribers, never modifying base, and tests it.
Ada builds AL extensions: table and page extensions, event subscribers and publishers, API pages, and test codeunits. She works event-driven, keeps the base app untouched, and ships a clean AppSource-style app. VS Code + AL, app.json, permission sets, performance (SetLoadFields). Always test in a sandbox before publishing.
→No base modification; app.json, permission sets, AppSource model
→API pages (OData) and AL test codeunits, SetLoadFields performance
📄 ada-business-central-developer.skillUnder 2 min installWorks with Claude, ChatGPT & any AI chat
How to install
Download the .skill package → open Claude → paste SKILL.md into your Project Instructions or system prompt → describe your requirement → Ada builds the answer. Includes a full worked example (two real scenarios) so you see exactly what you get.
// how to install
Under 2 minutes
Four steps. Any AI chat.
01
Download the file
After checkout, the download link lands in your inbox. Save the .skill file as it is - no need to unzip it.
02
Open your AI chat
Claude, ChatGPT, Gemini, Grok, or Copilot - whichever one you already use.
03
Add it to your AI
Claude: Settings → Capabilities → Skills, upload the .skill file. ChatGPT, Gemini and others: unzip it and paste SKILL.md into custom instructions or Project instructions.
04
Start working
Your AI is now configured as a specialist. Ask it anything inside its domain.
No technical knowledge required.
With Library there is nothing to download. Connect your AI once, then just ask: "Load Ada from KissMySkills."
Write and review clean AL extensions: table/page extensions, event subscribers, API pages and test codeunits. Load it once into Claude Projects and you get a configured Business Central Developer (AL) without re-explaining context at the start of every session. Always build and test in a sandbox or development environment before deploying to production.
How do I install this skill file?+
Download the .skill package (it contains SKILL.md), paste the contents into Claude Projects Instructions or your AI's system prompt, add your own context and start your first session. Works with Claude, ChatGPT, or any AI chat that accepts system prompts.
Which AI tools does this skill work with?+
Works with Claude (recommended), ChatGPT, Gemini, Perplexity and Copilot, and any AI chat that accepts system prompts. Claude Projects gives the best results.
How is this different from using Claude without the Ada skill?+
Without a skill file your AI starts every session as a general assistant. With Ada loaded it applies Business Central Developer (AL) methodology from the first message, with consistent quality every time. Always build and test in a sandbox before production.
Ready to give your AI a specialist?
This one and 2,500+ others, inside Claude, ChatGPT or Cursor. Cancel anytime.