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Matt Pocock Profile picture
@mattpocockuk
Apr 1, 2022 • 30 tweets • 7 min read • Read on X
🧵 The Ultimate TypeScript Thread 🧵

Here's everything I've learned from leading TS dev teams and working on XState's core team.

My goal is to turn you into a TypeScript wizard.

And yes, this thread is EVERGREEN - I'll add at least 3 more tips a week 🚀

Let's get started.

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More from @mattpocockuk

Matt Pocock Profile picture
Apr 9
I've just been reading the Agent2Agent technical docs - Google's new protocol for agent to agent communication.

You know what that means. Let's diagram them: Image
Agents can be discovered by a public 'card' they expose via http. Image
There are three 'actors' in an A2A system. The user, the client, and the server. Not too tricky. Image
Read 5 tweets
Matt Pocock Profile picture
Apr 9
Some notes on Cursor vs VSCode's new agent mode:
I'm currently working on a course where each lesson is a prompt, and you build a complex application from ~50 prompts.

This gives me a pretty gnarly eval for testing agent mode.

I've been using Cursor to build the course, but I tried VSCode instead.

How did it do?
Overall, VSCode performed well. The code produced by both was pretty decent, and they were comparable in terms of speed.

VSCode's agent was able to keep up with Cursor in terms of outputted code, with an important exception:
Read 8 tweets
Matt Pocock Profile picture
Mar 25
Ohhhhhh I think I've found an AI writing flow I'm happy with

Need to iterate on it before I write about it more, but it's really working.
Essentials are:

1. Create a big multi-step plan for the article, including checkboxes. On the current article I'm working on, it's 16+ steps.
2. For each step, ask it for 3 different plans for how to write the section. Give the section a target word count.
3. Get it to apply this to the document.
4. Do passes for paragraph length and section headings before even reading the paragraphs.
5. Do passes for writing style, analogies.
6. Get it to rewrite things in lists if needed.
Read 7 tweets
Matt Pocock Profile picture
Mar 7
MCP has ALREADY become an overloaded term.

Let's break it down into clients, servers and protocols: Image
MCP is built out of three ideas.

You have a client, a server, and a protocol to connect them together. Let's define each of them in turn.
The server is the thing that chats to the API's.

It can be on a remote server (i.e. in the cloud), or on your local system.

It contains all the code needed to actually take actions on the systems it talks to - sending Slack messages, creating files etc. Image
Read 7 tweets
Matt Pocock Profile picture
Mar 6
Lots of folks feeling FOMO about MCP.

Here's the problem it solves: Image
Image
If you want to get your LLM to do useful things in the world, you will quickly hit a problem.

All the useful things in the world, like Slack, GitHub, or even your local filesystem, provide their own unique API to access them.
So, you end up writing a ton of code to glue your LLM and those API's together.

Want to add a new tool? That's more glue code. Grim.
Read 6 tweets
Matt Pocock Profile picture
Oct 1, 2024
z.strict() fixed a nasty bug for me this morning.

You should probably be using it on most of the schemas that handle outside data.

Here's the bug 🧵 Image
I had a form where I was marking the date a post was posted. I was expecting a key of `postedAt`, with an optional datetime. Image
Except, in my form, I had gotten the `name` field wrong: Image
Read 7 tweets

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