Software Engineer and leader • I fuel business growth with technology • Created @relieseit
Peru
Joined March 2011
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Cristian Llanos retweeted
People seem shocked that the author of Clean Code doesn't read code anymore. But that should not be surprising.
Why did I write Clean Code? What is the goal of keeping code clean? To get it out of the way of the real job -- thinking.
Nuestro trabajo como ingenieros de Software no solo es que funcione el producto.
También es limpiar el código, agregar pruebas automatizadas, negociar tiempos de entrega.
Ningún líder del negocio vendrá a decirnos que tenemos 6 meses para refactorizar y mejorar el código.
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Cristian Llanos retweeted
I can now probably say this:
Two months ago, inside Anthropic someone suggested building a token leaderboard.
A heated internal debate followed and the decision was made to *never* ever do it… because several people inside Anthropic simply thought ahead of the consequences
Sources: Amazon has shut down an internal leaderboard that tracked employees' use of AI tools after workers tried to boost their scores with needless tasks (@rafeuddin_ / Financial Times)
(Visit Techmeme dot com for the link and full context!)
Cristian Llanos retweeted
This works surprisingly well:
• Ask Claude Code to fix a bug
• Let it work and figure it out
When it finishes, use this prompt:
"Knowing everything you know now, delete your fix and implement a better|concise|elegant version."
Claude will use the first pass to explore and learn the problem. Sometimes, this will lead to suboptimal code.
The second pass will be better because Claude already knows the problem and can write a better solution.
Cristian Llanos retweeted
This GitHub incident is insane. Merge queue commits have been reverting previously merged commits at random.
This not only breaks the mental contract teams have with Git in general, but is subtle enough to be really hard to unravel after the fact.
githubstatus.com/incidents/z…
Cristian Llanos retweeted
¡Vuelve DeepSeek! Han lanzado de código abierto la V4.
Versiones: Flash y Pro. Contexto de 1 millón de tokens.
No es el mejor modelo pero es...
¡20 veces más barato que Opus 4.7 y GPT 5.5!
Para muchos casos de uso va a ser más que suficiente:
ALT Captura de un tuit de DeepSeek anunciando “DeepSeek-V4”, supuestamente disponible y de código abierto, con contexto de 1M barato. Presenta dos modelos: DeepSeek-V4-Pro, con 1.6T parámetros totales y 49B activos, y DeepSeek-V4-Flash, con 284B totales y 13B activos. Termina invitando a probarlo en chat.deepseek.com mediante Modo Experto o Modo Instantáneo. Todo muy épico, como si el contexto de 1M viniera a salvarnos de copiar y pegar trozos de documentación como cavernícolas.
Cristian Llanos retweeted
GStack is an open-source toolkit built by YC President & CEO @garrytan that turns Claude Code into an AI engineering team — with skills for office hours, design, code review, QA, and browser testing.
In this video, Garry walks through how GStack works, starting with Office Hours, a skill modeled after real YC partner sessions that pressure-tests your idea before you write a line of code. He demos it live, going from idea through adversarial review, design mockups, and automated QA in a single session.
Cristian Llanos retweeted
Memory on Claude Managed Agents is now in public beta.
Your agents can now learn from every session, using an intelligence-optimized memory layer that balances performance with flexibility.
ALT Memory on Claude Managed Agents is now in public beta
Hice un Dependency Injection Container para Kotlin, con la rica sazón que siempre quise que un container tenga. Aquí les dejo el artículo por si quieren darle un ojito: cristianllanos.com/blog/inye…
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Cristian Llanos retweeted
¡Trucazo con GitHub! Añade un 0 a la URL de una Pull Request para que una IA te ayuda a revisar y entender los cambios que quieren fusionar. Sin coste. Te lo explico ↓
Cristian Llanos retweeted
Si quieres entender Big O Notation de una vez por todas, esta guía es una joya.
Ejemplos interactivos, diagramas claros y explicaciones sencillas.
En la universidad hubiera pagado por tener algo así.
Si te dedicas a programar, lo tienes que leer:
→ samwho.dev/big-o/