Built a firewall for odysseus using the internet computer protocol

[iTechBod]

🚀 Proposal: On-Chain Zero-Trust Firewall & Guardrails for Odysseus (⁠icfirewall⁠)
Hey maintainers & community! 👋
(Full disclosure upfront: I used AI to help refine and structure this proposal cleanly so I don't ramble, but the tool itself is 100% vibe-coded by me — a long-time Pewds fan who spends way too much time building Web3 & local AI security experiments!)
I wanted to kick off a quick discussion around bringing an extra layer of defense to Odysseus for users running local AI models and agentic workflows.

1. The Concept (ICfirewall / Cortex-Mesh)
   ICfirewall is an on-chain zero-trust security firewall canister hosted on the Internet Computer protocol (ICP). It acts as a decentralized security relay that inspects, sanitizes, and evaluates local model prompts and tool calls in real time before they reach local execution environments.
   By offloading security rule evaluation to an immutable on-chain canister, it provides configurable guardrail engines (e.g., Off, Medium, High security states) without relying on centralized APIs or traditional cloud proxies.
2. Value for Odysseus Users
   As Odysseus enables deeper local integration and autonomous execution, handling untrusted user input or retrieved context becomes critical:
   Prompt Injection Defense: Detects and blocks indirect prompt injections hidden within files, ingested emails, or web pages before they reach local LLMs.
   System Command Protection: Prevents runaway agent loops, unauthorized terminal execution, or harmful local shell commands from being triggered.
   Zero-Trust Infrastructure: Keeps model safety evaluations completely decentralized and auditable.

Github repo:
https://github.com/iTechBod/ICfirewall
🔗 Links & Bio
My Website: 2n2uw-uaaaa-aaaag-at2hq-cai.icp.net
YouTube Channel: @techbodam
Looking forward to hearing your thoughts! 👊 Brofist!

[iTechBod]

The discussion on the dfinity forum
https://forum.dfinity.org/t/made-a-firewall-named-icfirewall-for-local-ai-odysseus-check-it-out/75758/5

i have made a video of icfirewall in action on my X (find it on https://2n2uw-uaaaa-aaaag-at2hq-cai.icp.net my X) and will make a tutorial of it on my yt https://www.youtube.com/@techbodam

give this a try:)