iiinova — where your digital self keeps evolving

Diego Castillo @diegocasmo.bsky.social · 01/10/2026

Agents (some?) have a weird tendency to narrate comments, and it doesn't seem to matter how much you hint at it in your AGENTS file.

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Diego Castillo @diegocasmo.bsky.social · 24/09/2026

In a somewhat unexpected turn of events, I've found myself going back to typing. Over the past year I've used voice to text a lot. I still do, just way less than a few months ago.

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Diego Castillo @diegocasmo.bsky.social · 22/09/2026

Of course, if it isn't the almighty 'isRecord' (iykyk).

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Diego Castillo @diegocasmo.bsky.social · 21/09/2026

Always defaulting to learning makes it surprisingly easy to avoid actually doing.

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Diego Castillo @diegocasmo.bsky.social · 18/09/2026

As so often happens, I just want to do everything and (obviously) be good at everything lol.

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Diego Castillo @diegocasmo.bsky.social · 11/09/2026

Agents are making me faster and infinitely more distracted 😅

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Diego Castillo @diegocasmo.bsky.social · 31/08/2026

No idea what's going on but I find both Opus/Sol particularly dumb today 🤷‍♂️

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Diego Castillo @diegocasmo.bsky.social · 11/08/2026

Interesting times to be alive, for sure 🤔

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Diego Castillo @diegocasmo.bsky.social · 05/08/2026

Code smells today look like an agent consistently messing up in a codebase

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Diego Castillo @diegocasmo.bsky.social · 08/07/2026

Attention becomes the scarce resource right when output becomes abundant.

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Diego Castillo @diegocasmo.bsky.social · 29/06/2026

Doing more got cheap and doing better stayed hard.

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Diego Castillo @diegocasmo.bsky.social · 18/06/2026

Fundamentally, it all comes down to how well you know the problem.

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Diego Castillo @diegocasmo.bsky.social · 11/06/2026

Moving faster doesn't automatically mean making better decisions. Easy to mix those up right now.

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Diego Castillo @diegocasmo.bsky.social · 01/06/2026

You can't tell if the output is good unless you understand it well enough to judge it. Most people don't seem to care at all right now. I just can't wrap my head around that.

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Diego Castillo @diegocasmo.bsky.social · 22/05/2026

Even when you push back on an AI model, your pushback is only as good as your understanding. In your domain of expertise, you catch the subtle stuff. Outside of it, who knows.

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Diego Castillo @diegocasmo.bsky.social · 15/05/2026

Leverage comes from the parts you understand. Risk comes from the parts you don't.

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Diego Castillo @diegocasmo.bsky.social · 05/05/2026

English is the JavaScript of languages.

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Diego Castillo @diegocasmo.bsky.social · 28/04/2026

AI is an amplifier of ideas, good or bad, your choice.

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Diego Castillo @diegocasmo.bsky.social · 21/04/2026

Coding with AI is wildly inconsistent. Some sessions feel like magic, others the model confidently invents APIs for hours.

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Diego Castillo @diegocasmo.bsky.social · 15/04/2026

More people are being upfront about steering AI agents, rejecting suggestions, and carefully reviewing changes. It's quite refreshing after so many vanity metrics for a while now.

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Diego Castillo @diegocasmo.bsky.social · 09/04/2026

Tools got smarter, and the expectations for what to build with them got higher.

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Diego Castillo @diegocasmo.bsky.social · 07/04/2026

Chat in products is great but it doesn't make good UIs less important. You want both.

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Diego Castillo @diegocasmo.bsky.social · 30/03/2026

Cost of code dropped but the bar for products is higher than ever.

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Diego Castillo @diegocasmo.bsky.social · 25/03/2026

There's a version of shipping fast that comes from understanding the problem and a version that's just because it's easy now.

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Diego Castillo @diegocasmo.bsky.social · 25/03/2026

The ceiling keeps moving but so does your understanding of where it is.

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Diego Castillo @diegocasmo.bsky.social · 18/03/2026

Software has been composable for decades. You don't build everything from scratch. You plug into what's already there. Libraries, APIs, contracts.

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Diego Castillo @diegocasmo.bsky.social · 09/03/2026

It's easy to jump straight into implementing something without really understanding your options. Worse, you might not even be working on the right thing in the first place.

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Diego Castillo @diegocasmo.bsky.social · 23/02/2026

It has become increasingly clear to me that one of the most interesting areas to keep an eye on right now is how you maintain a solid understanding of a codebase as more work gets delegated to coding agents. You can only make good trade-offs if you have such understanding.

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Diego Castillo @diegocasmo.bsky.social · 20/02/2026

No matter how strong these models get, you eventually start to get a grasp of their limits. Just sort of an interesting thing you notice as you use them.

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Diego Castillo @diegocasmo.bsky.social · 17/02/2026

The online narrative is just throw everything at agents and figure it out. I use them all day, I barely write code myself at this point. But the people who seem to get the best results are strong engineers. I think foundational knowledge still matters a lot, maybe even more now.

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Diego Castillo @diegocasmo.bsky.social · 16/02/2026

Traditional UIs are disappearing. Not all at once, but for more workflows than I expected.

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Diego Castillo @diegocasmo.bsky.social · 16/02/2026

Em-dashes were not that common on the internet. LLMs use them constantly. Something in training made all major models pick up this habit. Makes you wonder what else got amplified that way.

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Diego Castillo @diegocasmo.bsky.social · 11/02/2026

Pay-per-view, but for thinking. That's what tokens are.

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Diego Castillo @diegocasmo.bsky.social · 10/02/2026

Monorepos are great for coding agents. All the code is just there, no jumping around.

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Diego Castillo @diegocasmo.bsky.social · 05/02/2026

Collaborating on Markdown files in tools like @github.com is honestly painful. You can't comment on a specific line, can't suggest inline edits. They need to become first-class citizens. @notion.com handles this way better, but it's not where my code lives.

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Diego Castillo @diegocasmo.bsky.social · 04/02/2026

Claude Code had a very successful start to the year. The aftermath seems to be that throwing shade at it is now fashionable.

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Diego Castillo @diegocasmo.bsky.social · 04/02/2026

New favorite workflow: end the day with a solid implementation plan split into a few tasks, hand them to coding agents, wake up to multiple PRs ready for review. 🫡

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Diego Castillo @diegocasmo.bsky.social · 28/01/2026

The real bottleneck is clarity of thought.

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Diego Castillo @diegocasmo.bsky.social · 25/01/2026

GitHub stats from the last couple of months would be fascinating to see. Feels like the amount of code being written quietly exploded due to agents.

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Diego Castillo @diegocasmo.bsky.social · 24/01/2026

Playing with agent skills this week. Which ones have actually stuck for you, and what do you use them for?

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Diego Castillo @diegocasmo.bsky.social · 21/01/2026

The models are fine. Figuring out what you want is the hard part.

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Diego Castillo @diegocasmo.bsky.social · 14/01/2026

The speed we can move as software engineers right now is honestly wild. I'm shipping more every day than I ever have throughout my career, in ways that simply weren't possible before. Interestingly, I also have more work than ever, not less. 😅

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Diego Castillo @diegocasmo.bsky.social · 10/01/2026

The 80/20 prompt I use with coding agents before creating the plan: "Ask questions if any." One line. Massive difference.

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Diego Castillo @diegocasmo.bsky.social · 07/01/2026

Back to Neovim + Claude Code. All other subscriptions gone. I wonder what this looks like in a year. 🤔

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Diego Castillo @diegocasmo.bsky.social · 02/01/2026

LLMs are the new level of abstraction. Leverage them, or someone else will. 🤷‍♂️

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Diego Castillo @diegocasmo.bsky.social · 19/12/2025

This week at @buffer.com, we wrapped up Customer Experience Week ✨, a few days focused on making tangible improvements for customers and a nice way to end the year strong.

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Diego Castillo @diegocasmo.bsky.social · 13/12/2025

Kalita pour over, Pacamara character. Quiet joy.

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