Isaac Gitonga

System Architect
I design the boundaries that break first: money, contention, tenancy.
RFCs + fixed-scope engineering.

[Isaac Gitonga @_isaacgitonga]

Most software does not fail because the team cannot write code.

It fails at the boundaries:

Payments fire twice.
Inventory oversells.
One tenant reads another tenant's rows.

I design those boundaries.

RFCs + fixed-scope engineering: https://t.co/CGkFkXVoTL

[Isaac Gitonga @_isaacgitonga]

@Its_Nova1012 Even if they cache and reuse there has to be a way they determine if the context is different.

[Isaac Gitonga @_isaacgitonga]

@ayesha_fatiima Has anyone actually ever had issues with GitHub?

[Isaac Gitonga @_isaacgitonga]

@AlfredoABrown It's so cool and so unnecessary

[Isaac Gitonga @_isaacgitonga]

@neerajjj6785 It will always find something. You have to say no or "we will fix this later" to some issues. Otherwise, this can become a rabbit hole.

[Isaac Gitonga @_isaacgitonga]

@Hershal0_0 @Windows A very underrated question

[Isaac Gitonga @_isaacgitonga]

@moneyacademyKE In the words of @MKBHD. This is a prank, right?

[Isaac Gitonga @_isaacgitonga]

@mattvanswol @MKBHD To whatever happened to shutting the F up?

[Isaac Gitonga @_isaacgitonga]

@rammcodes You can't help but wonder how stable these apps are and how useful they are.

[Isaac Gitonga @_isaacgitonga]

@weswinder If the design is yours, accuracy is cheap to achieve. The biggest issue is being able to survive the codebase in 6 months.

This is why structure and patterns are so important to agents.

[Isaac Gitonga @_isaacgitonga]

To the people who are saying that they vibe coded a solution in 30 minutes and it works, how are you doing it? Are you using a different Claude model?

I'm inclined to call it BS.

[Isaac Gitonga @_isaacgitonga]

@ParamSiddh By the time you copy pasted a block, you've tried every fix which makes you learn in the process. With vibe coding, there is no trying first and even worse, you can't point to where the slop is.

From StackOverflow you at least know where what you don't understand is.

[Isaac Gitonga @_isaacgitonga]

A few years ago, migrating to Linux, I gave the root partition 100GB.

Five years later, Linux has only used about 40GB.

Coming from Windows, I was convinced 100GB could disappear quickly.

Linux changed my perspective on how much space an OS actually needs.

[Isaac Gitonga @_isaacgitonga]

@dark_coderz You check Payments and add idempotency.

I thought idempotency looked the same everywhere: just anything that can be termed as a key. Building a checkout, I learned that it doesn't, idempotency is designed, it can be a key or a pattern or an architecture.

[Isaac Gitonga @_isaacgitonga]

@ivanfioravanti If we can guarantee that AI will always write code and developers don't need to maintain anything, there would be no reason to review code at all. We are not reviewing code because it's inaccurate: if your prompts are good and you have tests, this should not be a problem.

[Isaac Gitonga @_isaacgitonga]

@im_pranavkakde 150 lines. If you're writing code that not only you will maintain, don't try to be clever. Do the boring stuff, use standards and patterns that have been there for years.

[Isaac Gitonga @_isaacgitonga]

@boni_dev I can't work with light mode. Other than it exhausting your eyes, I don't like it.

[Isaac Gitonga @_isaacgitonga]

@eloffd I saw someone write that at any given time they have 10 agents running. 10 and you're solo? How do you even keep up? What are you building? An OS?

Then they gives you some Bullshit that it's exhausting and they are so drained by the time it's night. BS.

[Isaac Gitonga @_isaacgitonga]

@kamilbaranek_ The biggest problem with AI written code right now isn't accuracy. Accuracy is easy to achieve through tests. The main issue is structure and maintenance. Written code you wouldn't want to go back to in 6 months.

Architecture isn't even a question, don't let AI design.

[Isaac Gitonga @_isaacgitonga]

@Subscriptions It's been almost a week now since I purchased X premium but features aren't still available. X does not recognize the purchase on their servers. I've sent emails and submitted a form on X help days ago. This is the second time this is happening. Fix the issue or issue a refund.