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1•otrebladih•43s ago•0 comments

FSD helped save my father's life during a heart attack

https://twitter.com/JJackBrandt/status/2019852423980875794
1•blacktulip•3m ago•0 comments

Show HN: Writtte – Draft and publish articles without reformatting, anywhere

https://writtte.xyz
1•lasgawe•5m ago•0 comments

Portuguese icon (FROM A CAN) makes a simple meal (Canned Fish Files) [video]

https://www.youtube.com/watch?v=e9FUdOfp8ME
1•zeristor•7m ago•0 comments

Brookhaven Lab's RHIC Concludes 25-Year Run with Final Collisions

https://www.hpcwire.com/off-the-wire/brookhaven-labs-rhic-concludes-25-year-run-with-final-collis...
2•gnufx•9m ago•0 comments

Transcribe your aunts post cards with Gemini 3 Pro

https://leserli.ch/ocr/
1•nielstron•13m ago•0 comments

.72% Variance Lance

1•mav5431•14m ago•0 comments

ReKindle – web-based operating system designed specifically for E-ink devices

https://rekindle.ink
1•JSLegendDev•15m ago•0 comments

Encrypt It

https://encryptitalready.org/
1•u1hcw9nx•15m ago•1 comments

NextMatch – 5-minute video speed dating to reduce ghosting

https://nextmatchdating.netlify.app/
1•Halinani8•16m ago•1 comments

Personalizing esketamine treatment in TRD and TRBD

https://www.frontiersin.org/articles/10.3389/fpsyt.2025.1736114
1•PaulHoule•18m ago•0 comments

SpaceKit.xyz – a browser‑native VM for decentralized compute

https://spacekit.xyz
1•astorrivera•18m ago•1 comments

NotebookLM: The AI that only learns from you

https://byandrev.dev/en/blog/what-is-notebooklm
1•byandrev•19m ago•1 comments

Show HN: An open-source starter kit for developing with Postgres and ClickHouse

https://github.com/ClickHouse/postgres-clickhouse-stack
1•saisrirampur•19m ago•0 comments

Game Boy Advance d-pad capacitor measurements

https://gekkio.fi/blog/2026/game-boy-advance-d-pad-capacitor-measurements/
1•todsacerdoti•19m ago•0 comments

South Korean crypto firm accidentally sends $44B in bitcoins to users

https://www.reuters.com/world/asia-pacific/crypto-firm-accidentally-sends-44-billion-bitcoins-use...
2•layer8•20m ago•0 comments

Apache Poison Fountain

https://gist.github.com/jwakely/a511a5cab5eb36d088ecd1659fcee1d5
1•atomic128•22m ago•2 comments

Web.whatsapp.com appears to be having issues syncing and sending messages

http://web.whatsapp.com
1•sabujp•23m ago•2 comments

Google in Your Terminal

https://gogcli.sh/
1•johlo•24m ago•0 comments

Shannon: Claude Code for Pen Testing: #1 on Github today

https://github.com/KeygraphHQ/shannon
1•hendler•24m ago•0 comments

Anthropic: Latest Claude model finds more than 500 vulnerabilities

https://www.scworld.com/news/anthropic-latest-claude-model-finds-more-than-500-vulnerabilities
2•Bender•29m ago•0 comments

Brooklyn cemetery plans human composting option, stirring interest and debate

https://www.cbsnews.com/newyork/news/brooklyn-green-wood-cemetery-human-composting/
1•geox•29m ago•0 comments

Why the 'Strivers' Are Right

https://greyenlightenment.com/2026/02/03/the-strivers-were-right-all-along/
1•paulpauper•30m ago•0 comments

Brain Dumps as a Literary Form

https://davegriffith.substack.com/p/brain-dumps-as-a-literary-form
1•gmays•31m ago•0 comments

Agentic Coding and the Problem of Oracles

https://epkconsulting.substack.com/p/agentic-coding-and-the-problem-of
1•qingsworkshop•31m ago•0 comments

Malicious packages for dYdX cryptocurrency exchange empties user wallets

https://arstechnica.com/security/2026/02/malicious-packages-for-dydx-cryptocurrency-exchange-empt...
1•Bender•31m ago•0 comments

Show HN: I built a <400ms latency voice agent that runs on a 4gb vram GTX 1650"

https://github.com/pheonix-delta/axiom-voice-agent
1•shubham-coder•32m ago•0 comments

Penisgate erupts at Olympics; scandal exposes risks of bulking your bulge

https://arstechnica.com/health/2026/02/penisgate-erupts-at-olympics-scandal-exposes-risks-of-bulk...
4•Bender•32m ago•0 comments

Arcan Explained: A browser for different webs

https://arcan-fe.com/2026/01/26/arcan-explained-a-browser-for-different-webs/
1•fanf2•34m ago•0 comments

What did we learn from the AI Village in 2025?

https://theaidigest.org/village/blog/what-we-learned-2025
1•mrkO99•35m ago•0 comments
Open in hackernews

Show HN: I built a firewall for agents because prompt engineering isn't security

https://github.com/cordum-io/cordum
7•yaront111•2w ago
Hi HN, I’m the creator of Cordum.

I’ve been working in DevOps and infrastructure for years (currently in the fintech/security space), and as I started playing with AI agents, I noticed a scary pattern. Most "safety" mechanisms rely on system prompts ("Please don't do X") or flimsy Python logic inside the agent itself.

If we treat agents as autonomous employees, giving them root access and hoping they listen to instructions felt insane to me. I wanted a way to enforce hard constraints that the LLM cannot override, no matter how "jailbroken" it gets.

So I built Cordum. It’s an open-source "Safety Kernel" that sits between the LLM's intent and the actual execution.

The architecture is designed to be language-agnostic: 1. *Control Plane (Go/NATS/Redis):* Manages the state and policy. 2. *The Protocol (CAP v2):* A wire format that defines jobs, steps, and results. 3. *Workers:* You can write your agent in Python (using Pydantic), Node, or Go, and they all connect to the same safety mesh.

Key features I focused on: - *The "Kill Switch":* Ability to revoke an agent's permissions instantly via the message bus, without killing the host server. - *Audit Logs:* Every intent and action is recorded (critical for when things go wrong). - *Policy Enforcement:* Blocking actions based on metadata (e.g., "Review required for any transfer > $50") before they reach the worker.

It’s still early days (v0.x), but I’d love to hear your thoughts on the architecture. Is a separate control plane overkill, or is this where agentic infrastructure is heading?

Repo: https://github.com/cordum-io/cordum Docs: [Link to your docs if you have them]

Thanks!

Comments

hackerunewz•2w ago
Nice job, but is'nt it a bit overkill?
yaront111•2w ago
It is overkill for a demo. But for my production environment, I need an external safety layer. I can't rely on 'prompt engineering' when real data is at stake.
amadeuswoo•2w ago
Interesting architecture. Im curious about the workflow when an agent hits a denied action, does it get a structured rejection it can reason about and try an alternative, or does it just fail? Wondering how the feedback loop works between safety kernel and the LLM's planning
yaront111•2w ago
Great question. This is actually a core design principle of the Cordum Agent Protocol (CAP).

It’s definitely a *structured rejection*, not a silent fail. Since the LLM needs to "know" it was blocked to adjust its plan, the kernel returns a standard error payload (e.g., `PolicyViolationError`) with context.

The flow looks like this: 1. *Agent:* Sends intent "Delete production DB". 2. *Kernel:* Checks policy -> DENY. 3. *Kernel:* Returns a structured result: `{ "status": "blocked", "reason": "destructive_action_limit", "message": "Deletion requires human approval" }`. 4. *Agent (LLM):* Receives this as an observation. 5. *Agent (Re-planning):* "Oh, I can't delete it. I will generate a slack message to the admin asking for approval instead."

This feedback loop turns safety from a "blocker" into a constraint that the agent can reason around, which is critical for autonomous recovery.

exordex•2w ago
I built formal testing for AI agents, runs on the cli, free version launching soon - includes MCP security tests and chaos engineering features: https://exordex.com/waitlist
yaront111•2w ago
Exordex is a great tool for the CI/CD pipeline to test agents. Cordum is the Runtime Kernel that enforces those policies in production. Ideally? You use Exordex to test that your agent works, and Cordum to guarantee it stays safe.
TeamCommet1•2w ago
Regarding the separate control plane: I don't think it's overkill if you're aiming for multi-agent orchestration. A safety mesh needs to be centralized to maintain a global state of permissions. If you bake the safety logic into each worker, you end up with the same "flimsy logic" problem you're trying to solve.

Curious, how are you handling latency in the CAP v2 protocol when the control plane has to intercept every intent before execution?