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Context Engineering for AI Agents: Lessons

https://manus.im/blog/Context-Engineering-for-AI-Agents-Lessons-from-Building-Manus
38•helloericsf•4h ago

Comments

ojosilva•2h 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.
SafeDusk•9m ago
Definitely keep it simple, and OpenAI Codex's tooling setup[0] agrees with you too! Have a simple `update_plan` to track items in progress.

[0]: https://blog.toolkami.com/openai-codex-tools/

esafak•34m ago
On fixed price plans, the provider has the incentive to set up caching since it improves their margins. On metered plans, the burden is on the user to pay attention to caching availability, and people are just beginning to appreciate its importance.

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59•_JamesA_•1h ago•23 comments

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550•alazsengul•7h ago•328 comments

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529•kingori•11h ago•161 comments

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148•natrys•4h ago•41 comments

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https://questdb.com/blog/rust-fetch-max-compiler-journey/
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253•chilipepperhott•4d ago•107 comments

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https://spectrum.ieee.org/top-programming-languages-2025
29•jnord•1h ago•13 comments

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75•coloneltcb•1h ago•27 comments

Getting AI to work in complex codebases

https://github.com/humanlayer/advanced-context-engineering-for-coding-agents/blob/main/ace-fca.md
227•dhorthy•11h ago•223 comments

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19•mygnu•3d ago•8 comments

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84•holotrope•6h ago•38 comments

Launch HN: Strata (YC X25) – One MCP server for AI to handle thousands of tools

117•wirehack•10h ago•60 comments

Context Engineering for AI Agents: Lessons

https://manus.im/blog/Context-Engineering-for-AI-Agents-Lessons-from-Building-Manus
38•helloericsf•4h ago•3 comments

Apple A19 SoC die shot

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Podman Desktop celebrates 3M downloads

https://podman-desktop.io/blog/3-million
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117•stuxf•10h ago•34 comments

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172•alex-moon•13h ago•124 comments

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221•delichon•5h ago•410 comments

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20•bmf-san•3d ago•0 comments

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https://thereader.mitpress.mit.edu/is-life-a-form-of-computation/
66•redeemed•4h ago•65 comments

consumed.today

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154•burkaman•6h ago•29 comments

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https://committing-crimes.com/articles/2025-09-16-null-and-absence/
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Denmark wants to push through Chat Control

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209•Improvement•6h ago•105 comments

Shopify, pulling strings at Ruby Central, forces Bundler and RubyGems takeover

https://joel.drapper.me/p/rubygems-takeover/
439•bradgessler•10h ago•279 comments

Sampling and structured outputs in LLMs

https://parthsareen.com/blog.html#sampling.md
201•SamLeBarbare•14h ago•85 comments