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Context Engineering for AI Agents: Lessons

https://manus.im/blog/Context-Engineering-for-AI-Agents-Lessons-from-Building-Manus
22•helloericsf•2h ago

Comments

ojosilva•43m ago
+1 for using the file system as memory. You don't need a memory backend for that, or MCP, RAG, nothing. Just the basic read/write fs tools any agent has at its disposal.

Use an .agent/ directory. Tell it to keep a task list, a plan, findings, wishlists, future prompt ideas in there. I use it so much I have ".agent/" in my .gitignore template already. Tell it to use meaningful file names and to set the status of the memory using uppercase suffixes (and category as prefixes or subdirs), and you end up with...

    .agent/task-cleanup-code.DONE
    .agent/memory-function-style.md
    .agent/prompt-remove-dead-code.md
    .agent/symbols-map.toml
    ...
The agent will scan that directory every once in a while and look for information before making a decision. Granted, this is not a vectorial or graph search, it's a ripgrep regex probably, but the model can extrapolate and search many times for related words if needed.

When "no" means "yes": Why AI chatbots can't process Persian social etiquette

https://arstechnica.com/ai/2025/09/when-no-means-yes-why-ai-chatbots-cant-process-persian-social-...
1•jnord•19s ago•0 comments

Circle of Thirds

https://circleofthirds.com/
1•JMiao•50s ago•0 comments

Rules of Thumb

https://www.rulesofthumb.org/
1•bookofjoe•1m ago•0 comments

FT: Nvidia's $100B deal with OpenAI: an Alphaville FAQ

https://www.ft.com/content/7f1426ab-9f70-44e0-bb06-d83df348b64b
1•snake_doc•1m ago•0 comments

Qwen3-Max is here–no preview, just power

https://twitter.com/Alibaba_Qwen/status/1970599097297183035
1•sergiotapia•1m ago•0 comments

Kaidan 0.13.0: Multi-Account Support and Secure Password Storage – XMPP Client

https://www.kaidan.im/2025/09/21/kaidan-0.13.0/
1•neustradamus•3m ago•0 comments

9 Linux certifications to boost your career

https://www.networkworld.com/article/4060215/9-linux-certifications-to-boost-your-career.html
2•dxs•4m ago•0 comments

GitHub powered Y Combinator phishing campaign

https://y-comblnator.com/apply
1•nickphx•4m ago•1 comments

Show HN: BX Live Server – VS Code live reload with embedded preview

https://marketplace.visualstudio.com/items?itemName=Thinkback.tbx-live-server
2•th3mailman•6m ago•0 comments

Microsoft is building an AI marketplace to pay publishers for content

https://www.neowin.net/news/microsoft-is-reportedly-building-an-ai-marketplace-to-pay-publishers-...
1•bundie•6m ago•0 comments

From Prison to Helping the FBI to a TV Miniseries, to Google-Hallucinated Libel?

https://reason.com/volokh/2025/09/23/from-prison-to-helping-the-fbi-to-an-apple-tv-miniseries-to-...
1•anonymousiam•13m ago•0 comments

MCP is missing secure auth

https://blog.arcade.dev/mcp-server-authorization-guide
1•shawneechase•14m ago•1 comments

Walking Around the Compiler

https://bernsteinbear.com/blog/walking-around/
1•chunkles•16m ago•0 comments

Daslang

https://daslang.io/
1•Stevvo•17m ago•0 comments

Sonhadores

https://apenasumsonhador.substack.com/
1•danitzsche•18m ago•1 comments

Sonhador

1•danitzsche•18m ago•0 comments

Deploy your own AI vibe coding platform – in one click

https://blog.cloudflare.com/deploy-your-own-ai-vibe-coding-platform/
1•felipevolpatto•19m ago•0 comments

Show HN: A Map for Running Seattle's Light Rail

https://raceconditionrunning.com/light-rail-relay-25/
1•nickswalker•23m ago•0 comments

'SIM Farms' Are a Spam Plague. A Giant One in NY Threatened US Infrastructure

https://www.wired.com/story/sim-farm-new-york-threatened-us-infrastructure-feds-say/
2•petethomas•23m ago•0 comments

Parquet Viewer

https://parquet-viewer.xiangpeng.systems/
1•kcolford•23m ago•0 comments

Qwen Image Edit Plus

https://replicate.com/qwen/qwen-image-edit-plus
2•codergautam•25m ago•0 comments

Tech news sites quietly rely on this word to create drama in headlines (2017)

https://www.geekwire.com/2017/tech-news-sites-quietly-rely-word-create-drama-headlines-analysis-r...
1•Lammy•26m ago•2 comments

Ask HN: Do you find AI code review tools useful?

1•asdev•31m ago•1 comments

Fake ycombinatoor / y-comblnator using GitHub issues for contact

https://github.com/ycombinatoor/ycombinator-co/issues
4•jeffreypriebe•34m ago•2 comments

Orange EV revives Freewire tech, gives it the best name in the business

https://electrek.co/2025/09/23/orange-ev-revives-freewire-tech-gives-it-the-best-name-in-the-busi...
1•breve•34m ago•1 comments

US border patrol collected DNA from 1000s of US citizens for years, data shows

https://www.theguardian.com/technology/2025/sep/23/us-border-patrol-dna-data
10•c420•37m ago•0 comments

GitHub Y Combinator phishing attack

https://github.com/ycombiinator/ycombinator-co/issues
8•computersuck•38m ago•4 comments

H-1B Visa: Canada Hopes Trump's $100k Fee Redirects Talent North

https://www.bloomberg.com/news/articles/2025-09-23/h-1b-visa-canada-hopes-trump-s-100-000-fee-red...
5•voisin•40m ago•0 comments

30 Years Defending Linux – Until I Called It Quits

https://ludditus.com/2025/09/21/too-much-is-too-much-and-i-cant-stand-this-shit-anymore/
3•justaj•40m ago•1 comments

The pop singer who built a million-dollar ant empire

https://thehustle.co/originals/the-pop-singer-who-built-a-million-dollar-ant-empire
1•paulpauper•41m ago•0 comments