What actually happens when you add a 'tool' to a multi-agent system?
In Part 1, we covered 3 hidden complexities.
Here are 3 more that we've seen show up only in production. Tool Outputs Become a Single Point of Failure Your agent picked the right tool.
Called it at the
CODE
-

Hidden Complexities When Adding Tools to Multi-Agent Systems
By
–
-
Proposal for an online AI hackathon
By
–
Ça vous dirait qu’on fasse un hackathon IA en ligne un week-end ? Je ne sais pas encore quoi vous faire gagner ni comment l’organiser, mais qui serait chaud ? Le but ça serait de partir d’un sujet IA et de dev des petits projets à présenter. Si certains veulent aider à l’orga
-
Restricting Local Coding Agent Write Access to GitHub
By
–
How to restrict your local coding agent's write access to your GitHub: honnibal.dev/blog/locking-do…
-

Discussion on AI-generated code and diagramming workflows
By
–
C’est marrant parce qu’hier, certaines personnes m’ont dit que c’est illogique de faire un diagramme après la génération du code. (Alors que ce n’était même pas exactement ce que je disais dans mon post, mais bon ) Mais même en admettant que j’aie dit ça, (ce qui n’est pas le
-
Claude Code now supports 24/7 cloud execution
By
–
🚨| ÚLTIMA HORA: Claude Code ahora puede trabajar 24/7 en la nube. https://t.co/7TXenxUxQh
— SONIA (@S0N_IA_) 21 mars 2026| ÚLTIMA HORA: Claude Code ahora puede trabajar 24/7 en la nube.
-

CUWM: AI Agents Navigate Software Without Costly Mistakes
By
–
How can AI agents confidently navigate complex software without making costly mistakes? Nankai University, Nanjing University, The University of New South Wales, and Microsoft present CUWM. This Computer-Using World Model helps AI agents "see the future" of their actions on
-
AI Engineering Tools Evolve Rapidly Beyond Planning Horizons
By
–
Same applies to AI engineering. The tools I use today look nothing like 6 months ago. Planning anything beyond 3 months feels like guessing at this point haha
-
Style preferences for code complexity and variable usage in ML
By
–
I also think it's interesting that @karpathy 's style preference seems quite different from my own! I actually prefer complex lines a lot of the time, because the intermediate variables introduce more free choices and spread things out more. I have to look to see if the variable is reused later. Obviously there's a limit and dense lines are often pretty bad in ML code, but I definitely wouldn't have a "one op per line" rule in my style guide.
-
Iterative Improvement Over Single-Pass Instructions for AI Agents
By
–
You can't expect instructions like "Every line should do one thing" in an AGENTS.md to work. You need multiple passes. Trying to front-load all the style advice is like setting a really high learning rate. The space of possible code solutions is very large. Rather than trying to get there in one step, it's better to make lots of little steps that reliably iteratively improve the solution. Andrej Karpathy (@karpathy) I'm not very happy with the code quality and I think agents bloat abstractions, have poor code aesthetics, are very prone to copy pasting code blocks and it's a mess, but at this point I stopped fighting it too hard and just moved on. The agents do not listen to my instructions in the AGENTS.md files. E.g. just as one example, no matter how many times I say something like: "Every line of code should do exactly one thing and use intermediate variables as a form of documentation" They will still "multitask" and create complex constructs where one line of code calls 2 functions and then indexes an array with the result. I think in principle I could use hooks or slash commands to clean this up but at some point just a shrug is easier. Yes I think LLM as a judge for soft rewards is in principle and long term slightly problematic (due to goodharting concerns), but in practice and for now I don't think we've picked the low hanging fruit yet here. — https://nitter.net/karpathy/status/2035173492447224237#m
-
Codex Initiatives: Open Source, Students, Security, Ambassadors
By
–
Codex for Open Source
Codex for Students
Codex Ambassadors
Codex Security What should we do next?