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Show HN: Mem0 thinks our 2023 conversation happened in 2026

https://www.aurra.us/blog/mem0-vs-aurra
1•akshayt2012•54s ago•0 comments

The Chip That Made Hardware Rewriteable

https://spectrum.ieee.org/fpga-chip-ieee-milestone
1•sohkamyung•2m ago•0 comments

The high-emissions RCP8.5 scenario is Officially Dead

https://rogerpielkejr.substack.com/p/rcp85-is-officially-dead
1•mpweiher•2m ago•0 comments

AI's: 100 days to irreversible systemic system collapse?

1•buxy123•3m ago•0 comments

Paste the description of your AI system, get your EU AI Act obligations in 60s

https://eu-ai-act-classifier-app-qwhcqvjwmtf44wzjb9fcpb.streamlit.app/
1•JuristX•6m ago•0 comments

The Impossibility of an Infinite Future

https://philarchive.org/rec/HAKTIO-4
1•wakilahmedhakim•7m ago•0 comments

Both Codex and Claude got worse this week. Across every plan I retested

https://desktopcommander.app/best-value-ai/
2•wonderwhyer•7m ago•1 comments

Show HN: Does Big Government Kill Growth? The Armey Curve Tested (151 Countries)

https://julienreszka.github.io/economic-simulator/armey-curve.html
1•julienreszka•8m ago•0 comments

CopyFail CVE-2026-31431 mitigation with open source tool

1•SilverPlate3•9m ago•0 comments

Do octopus brains work like humans' – or is there another way to be smart?

https://www.nature.com/articles/d41586-026-01302-4
1•sohkamyung•9m ago•0 comments

Why Math's Final Axiom Proved So Controversial

https://www.quantamagazine.org/why-maths-final-axiom-proved-so-controversial-20260429/
1•ibobev•10m ago•0 comments

Contributor Poker and Zig's AI Ban

https://kristoff.it/blog/contributor-poker-and-ai/
1•ibobev•12m ago•0 comments

There were 91 Powerball big prize winners on April 29

https://www.powerball.com/
1•astrashe2•14m ago•1 comments

Weather and Clock Dashboard – Firefox new tab extension

https://addons.mozilla.org/en-US/firefox/addon/weather-clock-dashboard/
1•orenmi•15m ago•0 comments

AI Has Made Memory Chips One of the World’s Most Profitable Products

https://www.wsj.com/tech/ai-has-made-memory-chips-one-of-the-worlds-most-profitable-products-b062...
1•geox•16m ago•0 comments

Paleolatitude – input location and trace how its latitude has changed O

https://paleolatitude.org/
1•voxleone•17m ago•0 comments

Name in Landsat

https://science.nasa.gov/mission/landsat/outreach/your-name-in-landsat/
3•properbrew•18m ago•0 comments

Analog Resistance: Mechanical Simplicity in a Growing Digital Cycling World [video]

https://www.youtube.com/watch?v=fNX2ygniYyo
2•tpush•20m ago•0 comments

Show HN: Browser-based timelapse generator with pose-based photo alignment

https://bbelk.github.io/ImageToTimelapse/
1•bb-dev•23m ago•1 comments

The Data Layer Tax for Robot Learning

https://rerun.io/blog/data-layer-tax
6•Tycho87•24m ago•0 comments

Show HN: Kanwas, open-source shared context board for teams and agents

https://github.com/kanwas-ai/kanwas
7•SiNTEx•25m ago•0 comments

ISO27001 cost, what founders pay? (-20% YC Deal with Probo)

https://www.getprobo.com/hub/iso27001-certification-cost
1•arthurmyx•26m ago•0 comments

GCC 16.1 Released

https://gcc.gnu.org/pipermail/gcc/2026-April/248065.html
2•edelsohn•27m ago•0 comments

I tricked 3M people into believing in an evil fake polycule

https://rawandferal.substack.com/p/norman-polycule
2•jjmarr•29m ago•0 comments

Jesus' Time Management Secret [video]

https://www.youtube.com/watch?v=U-89DOwuZXM
1•Brysonbw•30m ago•0 comments

I aggregated 28 US Government auction sites into one search

https://bidprowl.com
15•scarsam•36m ago•5 comments

Repatriated Scammers Are a Security Risk, Says Kenyan Government

https://commsrisk.com/repatriated-scammers-are-a-security-risk-says-kenyan-government/
3•campuscodi•36m ago•0 comments

Agenda‑Intelligence.md: a protocol that turns AI news summarizers into analysts

https://github.com/vassiliylakhonin/agenda-intelligence-md
1•vassilbek•40m ago•0 comments

A.I. Bots Told Scientists How to Make Biological Weapons

https://www.nytimes.com/2026/04/29/us/ai-chatbots-biological-weapons.html
2•Anon84•40m ago•0 comments

Company says nuclear fusion could power the grid – and soon

https://www.cnn.com/2026/04/30/climate/nuclear-fusion-real-world-electricity-grid
2•mpweiher•42m ago•0 comments
Open in hackernews

Show HN: Pixelagent – Build your Stateful Agent Framework in 200 lines of code

https://github.com/pixeltable/pixelagent
30•pierrebrunelle•11mo ago

Comments

jweisspxl•11mo ago
Pixelagent: Agent Engineering Blueprint https://www.youtube.com/watch?v=BS6PRsnxkBA
SafeDusk•11mo ago
Exciting to see a fellow builder in the space! Love how memory management and observability is built-in.

Today, I just re-implemented Google's AlphaEvolve for Perlin noises using my own minimal agentic framework (https://toolkami.com/alphaevolve-toolkami-style/), will probably steal a trick or two from you.

pierrebrunelle•11mo ago
Congrats! Take whatever you want :)

Yes: Memory, observability, versioning, and lineage being built-in is a derivative of unifying orchestration and storage: https://docs.pixeltable.com/docs/datastore/computed-columns.

bosky101•11mo ago
Your readme doesn't mention any example of multiple agents. We don't need another wrapper to anthropic/openai/*. Without being able to select between multiple tools/agents - you only need 2 lines of code to achieve llm calls, and another 2 lines for state management.

That said the interface is more idiomatic that others agent frameworks that show up here.

It also wasn't clear where the last N messages is being persisted. Db/file/adapters/?

Good luck!

pierrebrunelle•11mo ago
Thanks!

https://github.com/pixeltable/pixelagent/tree/main/examples/... for multiple tools/agents. A tool is just a UDF. You can have as many as you want.

The goal of this reference agent SDK is to showcase the flexibility of Pixeltable (the underlying unified storage and orchestration system) that is Open Source and Apache 2.0.

This is where storage is defined: https://github.com/pixeltable/pixelagent/blob/main/pixelagen.... These are very simple examples.

Here's how an Agentic Reddit bot would work for instance: https://github.com/pixeltable/pixeltable/tree/main/docs/samp...

RamblingCTO•11mo ago
I'll just leave this here: https://github.com/The-Pocket/PocketFlow 100 lines of code agent lib that's not tied to a commercial offering
pierrebrunelle•11mo ago
I like PocketFlow. You beat me on the # of lines of code! But does it provide parallelization, caching, orchestration, versioning, observability, lineage, multi-modal support?

As you just showed, building an agent SDK is easy, so what's interesting to me is tackling:

- Infrastructure Sprawl: Juggling separate systems for vector search, state tracking, multimodal data handling, and monitoring leads to fragmented workflows and high operational costs. - State Management Nightmares: Reliably tracking agent memory, tool calls, and intermediate states across potentially long-running, asynchronous tasks is incredibly difficult. - Multimodal Integration Pain: Integrating and processing images, audio, video, and documents alongside text requires specialized, often disparate, tooling. - Observability Gaps: Understanding why an agent made a decision or failed requires visibility into its state and data lineage, which is often lacking.

And doing all of that while finding the right abstraction layer to leave all the application and business logic to the dev/users so they don't feel limited. It's difficult!

Besides, I don't know where you see a commercial offering? Everything is Apache 2.0/Open Source from A to Z.

RamblingCTO•11mo ago
PocketFlow is not from me, but just my current favorite ;)

I just got the feeling that the lib is tied to pixeltable, but maybe I misunderstood? Maybe that's why this is dead? pocketflow is completely standalone and the main thing is that you vibe code what you need (works awesome so far!).

I don't want to sideline the discussion about pixelagent, but here's some more about pf:

- https://the-pocket.github.io/PocketFlow/design_pattern/multi... (multi agent, queue) - https://github.com/The-Pocket/PocketFlow/tree/main/cookbook/ here are more advanced examples. Pretty easy to follow imho.

PS: re the observability, yesterday I coded tracing for pocketflow, just need to put it up on github haha

esafak•11mo ago
I don't know why Pierre's post is dead, but I wanted to ask if it is accurate to describe Pixelagent as an MCP-compatible memory layer, and what its competitors are.

If memory is the centerpiece, I suggest leading with it, rather than the ambiguous "Your AI Data Infrastructure".

pierrebrunelle•11mo ago
You can indeed turn anything that you want into an MCP server, e.g. https://github.com/pixeltable/pixeltable-mcp-server.

Pixelagent is a reference implementation for a multimodal agent framework to show that an agent class is easy to build and users should be empowered to build their own from scratch for their use cases.

Regarding Memory, to me it's just about Data Storage, Indexing, Orchestration, and Retrieval and I don't know why we should abstract Memory away from users. Memory will mean so many different things for many use cases.

Let's say you want:

- Working memory: Holds current context and immediate interaction history within the agent's context window -> this is just about passing Q&A pairs to maintain context alongside with roles.

- Episodic memory: Stores specific past experiences and interactions -> this is just about indexing past exchanges and having semantic search on it.

- Semantic memory: Organizes specific knowledge in structured formats -> this is just about building a custom logic (udf) to decide how and what to extract insight from and then retrieve it.

I've implemented them all in this example: https://github.com/pixeltable/pixelbot