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Show HN: Manim Skills – Claude Code skill for creating 3b1B style animations

https://github.com/adithya-s-k/manim_skill
1•Adithya-Kolavi•37s ago•0 comments

RCE in ImunifyAV, a common malware scanner for shared web hosting

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RAG-ception: Reddit R/RAG 2025 Wrapped with agentic assistant

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Redditor discovers card skimmer script on Canadian retailer checkout page

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Tesla Removes Autosteer from All Model 3 and Model Y Trims

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1•tortilla•22m ago•0 comments
Open in hackernews

Ask HN: How are you handling non-probabilistic security for LLM agents?

1•amjadfatmi1•1h ago
I've been experimenting with autonomous agents that have shell and database access. The standard approach seems to be "put safety guardrails in the system prompt", but that feels like a house of cards honestly. If a model is stochastic, its adherence to security instructions is also stochastic.

I'm looking into building a hard "Action Authorization Boundary" (AAB) that sits outside the agent's context window entirely. The idea is to intecept the tool-call, normalize it into intent against a deterministic YAML policy before execution.

A few questions for those building in this space:

Canonicalization: How do you handle the messiness of LLM tool outputs? If the representation isn't perfectly canonical, the policy bypasses seem trivial.

Stateful Intent: How do you handle sequences that are individually safe but collectively risky? For example, an agent reading a sensitive DB (safe) and then making a POST request to an external API (dangerous exfiltration).

Latency: Does moving the "gate" outside the model-loop add too much overhead for real-time agentic workflows?

I’ve been working on a CAR (Canonical Action Representation) spec to solve this, but I’m curious if I'm overthinking it or if there’s an existing firewall for agents standard I'm missing.

Comments

yaront111•1h ago
i just built Cordum.io .. should give u 100% deterministic security open sourced and free :)
amjadfatmi1•5m ago
Hey @yaront111, Cordum looks like a solid piece of infrastructure especially the Safety Kernel and the NATS based dispatch.

My focus with Faramesh.dev is slightly upstream from the scheduler. I’m obsessed with the Canonicalization problem. Most schedulers take a JSON payload and check a policy, but LLMs often produce semantic tool calls that are messy or obfuscated.

I’m building CAR (Canonical Action Representation) to ensure that no matter how the LLM phrases the intent, the hash is identical. Are you guys handling the normalization of LLM outputs inside the Safety Kernel, or do you expect the agent to send perfectly formatted JSON every time?