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Ask HN: What's your biggest challenge with context engineering for AI agents?

2•karpathunter•1h ago
I've been building agents for a couple years and context engineering keeps being the bottleneck. Curious what problems others are hitting.

Things I've struggled with:

- Debugging what the agent actually saw at decision time

- Managing context across multi-agent patterns

- Keeping history without blowing up storage

What's eating your time?

Show HN: Company hiring trends and insights from job postings

https://jobswithgpt.com/company-profiles/
1•sp1982•58s ago•0 comments

Building Google-Docs-like collaboration for an app used by millions (in Rust)

https://www.photoroom.com/inside-photoroom/building-google-docs-like-live-collaboration-for-a-cro...
1•ea016•1m ago•0 comments

Building a JavaScript runtime in one month

https://themackabu.dev/blog/js-in-one-month
1•theMackabu•1m ago•0 comments

Malicious ad blocker extension uses 'CrashFix' to spread new Python RAT

https://www.scworld.com/news/malicious-ad-blocker-extension-uses-crashfix-to-spread-new-python-rat
1•Bender•2m ago•0 comments

Show HN: RLM-MCP Analyze Files in Claude Code Using MIT's RLM

1•ahmedm24•3m ago•0 comments

Malan Chat, the full immersion AI-powered language learning app for 62 languages

https://www.malan.chat
2•sam_osterfeld•3m ago•1 comments

Email design after legacy Outlook is phased out

https://blocksedit.com/content-code/modern-email-design/
1•ovidem•4m ago•0 comments

Show HN: TetrisBench – AI vs. AI vs. Human Tetris using realtime code generation

https://tetrisbench.com/
1•ykhli•5m ago•0 comments

Tom Lehrer (1928–2025): A (Mostly) Mathematical Appreciation

https://www.ams.org/journals/notices/202602/noti3297/noti3297.html
1•stmw•5m ago•0 comments

Show HN: Building a future where security checks leave no permanent trails

1•csp_dev•7m ago•0 comments

Concorde at 50: Twice the speed of sound, twice the economic trouble

https://www.theregister.com/2026/01/21/50_years_concorde/
2•LorenDB•10m ago•0 comments

Quantum physicists create largest ever 'superposition'

https://www.nature.com/articles/d41586-026-00177-9
2•digital55•11m ago•0 comments

You're Living in the Chinese Century

https://www.wired.com/china-issue/
4•mefengl•11m ago•0 comments

Apple's product plans stolen in Luxshare cyberattack

https://www.macrumors.com/2026/01/21/apple-product-plans-stolen-in-luxshare-cyberattack/
2•gloxkiqcza•12m ago•0 comments

illumos

https://illumos.org/
2•tosh•13m ago•0 comments

LWN Is Down

https://lwn.net/
1•WesolyKubeczek•14m ago•1 comments

My website is my custom feed reader

https://squeaki.sh/p/i-turned-my-website-into-my-feed-reader/
1•steffoz•15m ago•0 comments

MathGPT Graphing: fast interactive graphs with AI help

https://mathgpt.today/graphing
1•umeedsto•15m ago•2 comments

Show HN: A RSVP Reader for Articles

https://www.readfast.co/
1•Mitchell2398•16m ago•0 comments

Slouching Towards Bethlehem – Joan Didion (1967)

https://www.saturdayeveningpost.com/2017/06/didion/
1•jxmorris12•17m ago•0 comments

Attention Authors: updated endorsement policy

https://blog.arxiv.org/2026/01/21/attention-authors-updated-endorsement-policy/
1•50kIters•17m ago•0 comments

How do you keep AI-generated applications consistent as they evolve over time?

1•RobertSerber•18m ago•0 comments

Show HN: Why single agents suck at math proofs

https://ensue.dev/blog/stop-throwing-a-single-agent-at-complex-problems/
3•austinbaggio•23m ago•1 comments

Gut bacteria rapidly adapt to digest starches in ultra-processed foods

https://phys.org/news/2025-12-gut-bacteria-rapidly-digest-starches.html
1•PaulHoule•23m ago•0 comments

Putin's Famous Munich Speech (2007) [video]

https://www.youtube.com/watch?v=hQ58Yv6kP44
1•samiv•23m ago•0 comments

Show HN: CogDB – A persistent graph database that runs inside a Python process

https://github.com/arun1729/cog
1•am3141•23m ago•0 comments

The Microsoft-OpenAI Files: Internal documents reveal AI's defining alliance

https://www.geekwire.com/2026/the-microsoft-openai-files-internal-documents-reveal-the-realities-...
1•CrankyBear•24m ago•0 comments

Waiting for dawn in search: Search index, Google rulings and impact on Kagi

https://blog.kagi.com/waiting-dawn-search
9•josephwegner•25m ago•1 comments

Pandas 3.0.0 Released

https://github.com/pandas-dev/pandas/releases/tag/v3.0.0
1•todsacerdoti•25m ago•0 comments

How to use AI in Meta's AI-assisted coding interview (with prompts and examples)

https://interviewing.io/blog/how-to-use-ai-in-meta-s-ai-assisted-coding-interview-with-real-promp...
2•leeny•27m ago•0 comments