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rkuska

263 karma · joined April 17, 2015

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rkuska··on Owners mourn spoiled food after firmware update bricks Samsung smart fridges
Gilfoyle's take on Smart Fridges: > This thing is addressing problems that don't exist. It's solutionism at its worst.
rkuska··on Woman stranded in Spain after UK's eVisa system mistakes her for twin sister
My favorite part of the UK’s eVisa was taking a portrait photo of my 1.5y old.

I was losing my sanity over all the refusals (app refusing the photos).

rkuska··on Ox Alpha
Are you sure you are not talking about CIA?
rkuska··on The session you cannot take with you
I am waiting for prices to get down and in the meanwhile I am gathering as much session data from claude/codex as possible so I can then later use them to fine tune open models. I've built my own session parser/archiver for this.
rkuska··on Sealed tomb filled with paintings and inscriptions discovered in Egypt
There is a park in my city that used to be the city cemetery. They moved the cemetery to a new place due to capacity and turned the original one into a park.

I think it is a very common practice. Everyone will be forgotten eventually, no matter the fame.

https://cs.wikipedia.org/wiki/Tyr%C5%A1%C5%AFv_sad_(Brno-Vev...

rkuska··on HackerRank open sourced its ATS. My resume scored 90/100. Oh wait 74. No – 88
This reminds me of my former CTO. He would take bunch of CVs and randomly throw some of them in a bin. He didn’t want to work with “unlucky” people.
rkuska··on Local Qwen isn't a worse Opus, it's a different tool
It system prompts that change all the time especially in claude code.
rkuska··on Who's the smartest corvid?
I feed crows during winter in my local park. They recognize me as soon as I enter and follow me around. Some even fly very close above my head and tap me with a wing.

Also they cache food they don't eat, they hide it, cover with leaves and make sure nobody is watching them, they act very casual. I am not sure if they remember the locations though.

Compared to ravens they have smaller head but I believe it is because they spend so much time near people (at least here in Europe you don't see ravens in cities, they are afraid,for historical reasons, of people and low in numbers) they get smarter and more crafty.

I can recommend a great book about corvids with beautiful illustrations: https://yalebooks.yale.edu/book/9780300122558/in-the-company...

rkuska··on Claude Fable 5
Is it possible to use the credits from subscription (https://support.claude.com/en/articles/15036540-use-the-clau...) for fable?
rkuska··on Show HN: AISlop, a CLI for catching AI generated code smells
I've tried it on my repository; for go if function is in format `func(...) (T, bool)` and you use it as `object, _ := func(...)` it reports as `Error return value is being ignored` even though it's clearly not an error being ignored (and ignoring the bool ok is a common pattern in go).
rkuska··on Claude Opus 4.8
Thinking on max is broken on 4.8 for me, getting many:

⎿ API Error: 400 messages.1.content.17: `thinking` or `redacted_thinking` blocks in the latest assistant message cannot be modified. These blocks must remain as they were in the original response.

From /code-review max.

rkuska··on Claude Code as a Daily Driver: Claude.md, Skills, Subagents, Plugins, and MCPs
I don't know, after working for 13 (?) years as a software (and backend) engineer I kind of think writing the actual code is the boring part of our job. 90% of it (random number) is mostly a template code (depending on the language you use).
rkuska··on Claude Code as a Daily Driver: Claude.md, Skills, Subagents, Plugins, and MCPs
There is so many concepts that I just sometimes forget, that's the purpose of the file, so I don't have to guess and can explain clearly what I mean (I am not a native speaker).

Example: https://github.com/rkuska/carn/blob/main/VOCABULARY.md

rkuska··on Claude Code as a Daily Driver: Claude.md, Skills, Subagents, Plugins, and MCPs
Regarding:

``` # Development Workflow

*Always use `bun`, not `npm`.*

# 1. Make changes

# 2. Typecheck (fast)

bun run typecheck

# 3. Run tests

bun run test -- -t "test name" # Single suite bun run test:file -- "glob" # Specific files

# 4. Lint before committing

bun run lint:file -- "file1.ts" bun run lint

# 5. Before creating PR

bun run lint:claude && bun run test ```

I have these things in pre-commit, this way the targets are always ran and the agent is forced to fix them (I ask claude to commit changes). The agents are erratic and very often skip these steps. Anything that can be deterministic I keep as scripts.

Regarding commits; both codex and claude are terrible at writing them. I have in my user CLAUDE.md:

``` Pattern: `type(scope): message` where type is `fix`, `feat`, `chore`, `docs`, `refactor`, or `style`; scope marks what is affected; message is a short lowercased description.

Keep subject and body lines under 72 characters. Always write a body explaining what, how, and why in continuous human-readable text. For fixes include the error message being fixed. No first-person speech. Re-read the actual git diff before writing — the message must describe what changed, not what was planned.

Use following command to create commit:

```bash git commit -F - <<'EOF' type(scope): subject line

Body paragraph explaining what, how, and why. EOF ```

```

Without it would write the body as a single long sentence; when asked to fix lines it would just insert \n (newlines), which were not respected and were instead just rendered as characters.

Another thing I find helpful is VOCABULARY.md. Very often the agent would assume (connect?) a different thing than what I had in mind, with VOCABULARY I make sure when I say "thing" claude and I have both the same "understading" (connection?) what "thing" is.

rkuska··on An update on recent Claude Code quality reports
I don't think you can store the cache on client given the thinking is server side and you only get summaries in your client (even those are disabled by default).
rkuska··on Show HN: Ctx – a /resume that works across Claude Code and Codex
I wrote a tool for myself to copy (and archive) the claude/codex conversations github.com/rkuska/carn
rkuska··on Claude Opus 4.7
It seems like the correct way is to use:

`claude --thinking-display summarized`

The thinking is then visible with ctrl+o in the claude cli (shortcut available at least on mac).

Well you can't really trust the documentation I guess. I can't edit my original comment anymore.

rkuska··on Claude Opus 4.7
For 4.7 it is no longer possible to disable adaptive thinking. Which is weird given the comment from Boris followed with silence (and closed github issue). So much for the transparency.

> Claude Opus 4.7 (claude-opus-4-7), adaptive thinking is the only supported thinking mode. Thinking is off unless you explicitly set thinking: {type: "adaptive"} in your request; manual thinking: {type: "enabled"} is rejected with a 400 error.

https://platform.claude.com/docs/en/build-with-claude/adapti...

For my claude code I went with following config:

* /effort xhigh (in the terminal cli) - To avoid lazying

* "env": {"CLAUDE_CODE_DISABLE_1M_CONTEXT": "1"} (settings.json) - It seems like opus is just worse with larger context

* "display": "summarized" (settings.json) - To bring back summaries.

* "showThinkingSummaries": true (settings.json) - Should show extended thinking summaries in interactive sessions

Freaking wizardry.

rkuska··on Elevated errors on Claude.ai, API, Claude Code
I’ve built a browser cli for that.

https://github.com/rkuska/carn

rkuska··on A truck driver spent 20 years making a scale model of every building in NYC
There is a miniature of Prague from around 1830 by Antonín Langweil. He dedicated his all free time to finish it in a hope of making money for his daughters. Langweil never found a benefactor for his work and he died poor. Pretty tragic story.

https://www.muzeumprahy.cz/en/visit-langweils-model-of-pragu...

rkuska··on The 49MB web page
Have the same story but I forgot to disable tc netem on a server, luckily it was just staging.
rkuska··on Ask HN: What did you read in 2025?
I would recommend The Children of Noisy Village, my 3 year old loves it (she didn't like Pippi Longstocking) and we've read all chapters from all the books several times already.
rkuska··on Bird flu viruses are resistant to fever, making them a major threat to humans
That's what we do here (Czech republic), we don't take meds until the fever goes over 39°C (above 40 you are looking for trouble). You lay in bed and drink enough to compensate for sweating. My grandma would make you onion tea.
rkuska··on ICE Offers Up to $280M to Immigrant-Tracking 'Bounty Hunter' Firms
Your comment reminded me of "Godspeed You! Black Emperor - Blaise Bailey Finnegan III":

> Like I said, America's a third world country as it is and... and we're just basically in a hopeless situation as it stands

https://www.youtube.com/watch?v=pP8XBJc2p_g

I keep GY!BE playing on repeat for the past several months.

rkuska··on Apple courier may have stolen 2 MacBooks, ... Apple is not going to help
Similair stories with UPS in Czech republic. I stopped ordering from any site (including apple.com) that only uses UPS.
rkuska··on Touchscreens are out, and tactile controls are back
I spent (5y ago) so much time searching for induction stove with physical knobs. The touch interface at my previous place was driving me crazy, a slight misalidgment and the stove would beep like it’s end of the world. Luckily Miele produces some at the premium price (or was at the time) but I considered it an investment in my mental health.
rkuska··on Apple may stop producing Vision Pro by the end of 2024
We are family of 2 adults and 1 child. We spend very easily 400 (and more) per month. We don't buy any processed food. We cook at home. 90% of time. Some weekends we go out for a single lunch or dinner. We live in Czech republic. We rarely buy "bio" (or "organic" depending on where you live) food.
rkuska··on I am starting an AI+Education company
> So, I wish Andrej et al the best and I'm rooting for them but I'm not optimistic they'll build a high-growth, high-revenue sustainable edu business around AI as the primary value differentiation.

I don’t have an X account and as such might miss additional information from subsequent replies but there is nowhere in the post mention about building a high growth/high revenue business? Maybe Andrej just enjoy teaching and sharing knowledge and want to bring like minded, well off people together rather than creating an unicorn?

Or do you mean by your post that it is not (or is very hard) to even reach non negative revenue to keep it sustainable on its own?

rkuska··on Nikon Z 28-400mm f/4-8 VR: The Best All-Purpose Lens I've Ever Used
I have exact lens setup. The mentioned telezoom rarely leaves my camera unless I need a portable camera that’s when the 40 shines. I have no problem with resolution since I use Z6 II.

I switched to 24-200 during workshop with Pinkhassov as he is a strong proponent of superzooms.

rkuska··on Apple's M4 has reportedly adopted the ARMv9 architecture
That’s actually a nice side effect of all the *rumors pages. The rumors of future products keep me of buying the current products. I keep on using my previous products while saving money and planet and being excited about what future holds.
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