Hacker News
Show HN: Build Your Own CLI Coding Agent in Python
Ran a hands-on workshop in Tokyo where ~50 engineers built a CLI coding agent from scratch in Python and now, I've converted it into a self-paced exercise.
GitHub Repo: https://github.com/primaprashant/alduin
This should help in getting a better understanding of what goes on inside the coding agents. You will iteratively implement the core agent loop present in all coding agents like Claude Code and Codex starting from a skeleton repo with a basic input loop and no LLM. Over 7 phases, you will add the Anthropic API and implement tools (read file, edit file, bash). Each phase has hints and a reference implementation if you get stuck.
Should take ~3-5 hours and in the end, you'll have your own coding agent which you can use on other project and codebases as well.
Feedback and PRs welcome. Happy to answer any questions.
Comments URL: https://news.ycombinator.com/item?id=47133182
Points: 1
# Comments: 0
Rust Debugging Survey 2026
Article URL: https://blog.rust-lang.org/2026/02/23/rust-debugging-survey-2026/
Comments URL: https://news.ycombinator.com/item?id=47133164
Points: 2
# Comments: 0
Machine-Generated, Machine-Checked Proofs for a Verified Compiler
Article URL: https://arxiv.org/abs/2602.20082
Comments URL: https://news.ycombinator.com/item?id=47133157
Points: 1
# Comments: 0
Machine gun set up close to the University of Tehran
Article URL: https://www.iranintl.com/en/202602234502
Comments URL: https://news.ycombinator.com/item?id=47133155
Points: 2
# Comments: 0
Show HN: Describe a workflow in plain English and builds the multi-agent system
Article URL: https://www.phinite.ai/
Comments URL: https://news.ycombinator.com/item?id=47133140
Points: 2
# Comments: 3
Cassandra Complex
Article URL: https://en.wikipedia.org/wiki/Cassandra_(metaphor)
Comments URL: https://news.ycombinator.com/item?id=47133135
Points: 2
# Comments: 0
How to Organize Safely in the Age of Surveillance
Article URL: https://www.wired.com/story/how-to-organize-safely-in-the-age-of-surveillance/
Comments URL: https://news.ycombinator.com/item?id=47133126
Points: 1
# Comments: 0
Colt – Describe a browser task in English, get a Playwright script
COLT converts natural language instructions into browser automation. You say "Create a user with email admin@test.com and admin role" — it executes it on a live browser and exports a standalone Playwright script. How it works:
1.Discover — crawls your web app autonomously, maps every page, form, modal, and element 2.Index — LLM-summarizes each state into a vector search index (discover once, run unlimited tasks) 3.Execute — ReAct agent loop drives the browser in real time with self-healing on failures 4.Record — exports reusable Playwright scripts, pytest tests, and typed Python functions
It handles Shadow DOM, cross-origin iframes, infinite scroll, pagination traps, and modals — the stuff that breaks most automation tools. What it's not: Not a consumer AI browser. Not an RPA tool. It's for engineering teams who want to generate E2E tests or automate internal tool workflows without writing selectors by hand. The key difference from other AI browser agents: they start from scratch every execution. COLT builds a persistent knowledge base of your app, so task #100 is as fast as task #1. Built with Python, Playwright, and ChromaDB. Works with Groq, OpenAI, Anthropic, or local Ollama models. Currently in closed beta — launching soon. Would love feedback on the approach, especially from anyone doing browser automation at scale
Comments URL: https://news.ycombinator.com/item?id=47133121
Points: 1
# Comments: 0
Anthropic misanthropic toward China's AI labs
Article URL: https://www.theregister.com/2026/02/24/anthropic_misanthropic_chinese_ai_labs/
Comments URL: https://news.ycombinator.com/item?id=47133103
Points: 1
# Comments: 1
Show HN: Memctl.com: Open-source shared memory infrastructure for coding agents
Hey HN. I built memctl because every AI coding agent starts each session with zero context. No memory of past decisions, no shared knowledge across your team. memctl is a memory server that gives AI coding agents persistent context that carries over across sessions. Memory is shared across your team so every agent works with the same knowledge. It's branch-aware so context follows your git workflow, and everything is tracked with full history. It works with any AI coding agent. Open source and self-hostable.
GitHub: https://github.com/memctl Website: https://memctl.com
Launches on March 1st. Waitlist open. Would to hear any feedback!
Comments URL: https://news.ycombinator.com/item?id=47133074
Points: 1
# Comments: 0
The Looming Taiwan Chip Disaster That Silicon Valley Has Long Ignored
Article URL: https://www.nytimes.com/2026/02/24/technology/taiwan-china-chips-silicon-valley-tsmc.html
Comments URL: https://news.ycombinator.com/item?id=47133069
Points: 4
# Comments: 1
Workaholic open source developers need to take breaks
Article URL: https://www.theregister.com/2026/02/23/open_source_devs_column/
Comments URL: https://news.ycombinator.com/item?id=47133062
Points: 2
# Comments: 0
Show HN: enveil – hide your .env secrets from prAIng eyes
Article URL: https://github.com/GreatScott/enveil
Comments URL: https://news.ycombinator.com/item?id=47133055
Points: 2
# Comments: 0
Huntarr – Your passwords and your ARR stack's API keys are exposed to anyone
Article URL: https://old.reddit.com/r/selfhosted/comments/1rckopd/huntarr_your_passwords_and_your_entire_arr_stacks/
Comments URL: https://news.ycombinator.com/item?id=47133052
Points: 1
# Comments: 0
Why I Hate Anthropic and You Should Too
Article URL: https://danielmiessler.com/blog/why-you-should-hate-anthropic
Comments URL: https://news.ycombinator.com/item?id=47133031
Points: 3
# Comments: 0
Show HN: L88 – A Local RAG System on 8GB VRAM (Need Architecture Feedback)
Hey everyone,
I’ve been working on a project called L88 — a local RAG system that I initially focused on UI/UX for, so the retrieval and model architecture still need proper refinement.
Repo: https://github.com/Hundred-Trillion/L88-Full
I’m running this on 8GB VRAM and a strong CPU (128GB RAM). Embeddings and preprocessing run on CPU, and the main model runs on GPU. One limitation I ran into is that my evaluator and generator LLM ended up being the same model due to compute constraints, which defeats the purpose of evaluation.
I’d really appreciate feedback on:
Better architecture ideas for small-VRAM RAG
Splitting evaluator/generator roles effectively
Improving the LangGraph pipeline
Any bugs or design smells you notice
Ways to optimize the system for local hardware
I’m 18 and still learning a lot about proper LLM architecture, so any technical critique or suggestions would help me grow as a developer. If you check out the repo or leave feedback, it would mean a lot — I’m trying to build a solid foundation and reputation through real projects.
Thanks!
Comments URL: https://news.ycombinator.com/item?id=47133027
Points: 1
# Comments: 0
Compiler Education Deserves a Revolution
Article URL: https://thunderseethe.dev/posts/compiler-education-deserves-a-revoluation/
Comments URL: https://news.ycombinator.com/item?id=47133014
Points: 2
# Comments: 0
Torvalds Drops Old Linux Kconfig Option to Address Tiresome Kernel Log Spam
Article URL: https://www.phoronix.com/news/Torvalds-Unseeded-Random
Comments URL: https://news.ycombinator.com/item?id=47133004
Points: 2
# Comments: 0
Epsteincoin Is Collapsing
Would you choose the Microsoft stack today if starting greenfield?
Serious question.
Outside government or heavily regulated enterprise, what is Microsoft’s core value prop in 2026?
It feels like a lot of adoption is inherited — contracts, compliance, enterprise trust, existing org gravity. Not necessarily technical preference.
If you were starting from scratch today with no legacy, no E5 contracts, no sunk cost — how many teams would actually choose the full MS stack over best-of-breed tools?
Curious what people here have actually chosen in greenfield builds.
Comments URL: https://news.ycombinator.com/item?id=47132766
Points: 1
# Comments: 0
