How the Transformer Creator Built a Secure Rust Reimplementation of OpenClaw
Illia Polosukhin, one of the authors of the Transformer paper, rewrote OpenClaw in Rust as IronClaw, adding multiple security layers, a database‑backed memory system, WASM sandboxing, encrypted credential storage, and extensible agent components to make AI agents both safe and efficient.
Problem Statement
OpenClaw can grant an AI agent unrestricted access to a host machine, exposing user credentials and data. An example given is granting OpenClaw access to an email account, which would transmit the bearer token to the LLM provider’s database, allowing potential leakage of all email contents and other sensitive information.
IronClaw Architecture
IronClaw is an open‑source runtime for AI agents written in Rust, designed with security as a primary goal. The codebase is intended to be clear, auditable, and suitable for enterprise deployment.
Core Components
Agent Loop – main task scheduler for agents
Router – user‑intent routing layer
Scheduler – parallel task dispatcher
Worker – executes models and tools
Orchestrator – manages containers, permissions, and LLM calls
Web Gateway – interaction entry point
Routines Engine – automation task engine
Workspace – long‑term memory and retrieval layer
Safety Layer – security safeguards
Security Enhancements
Replace direct filesystem access with a database and enforce explicit data‑usage policies.
Load dynamic tools via WebAssembly (WASM) in isolated sandboxes, preventing arbitrary host‑code execution.
Encrypt all credentials; credentials never reach the LLM or logs, and each credential carries a policy that validates its intended target.
Introduce heuristic prompt‑injection defenses, with plans to add continuously updated small models for detection.
Store memory in a database using hybrid BM25 and vector search, virtualizing file access and isolating it from the OS.
Heartbeats and Routines provide periodic summaries, aimed at regular users rather than only developers familiar with cron.
Support multiple communication channels (Web, CLI, Telegram, Slack, WhatsApp, Discord) with additional channels planned.
Future Enhancements
User‑defined behavior policies that agents must satisfy before acting.
Immutable audit logs to trace failures and provide tamper‑evident records.
Example of Credential Leakage Mitigation
In the OpenClaw scenario, an email bearer token would be sent to the LLM provider and stored in their database. IronClaw mitigates this by encrypting the token at rest, never exposing it to the LLM, and executing any skill that needs the token inside a sandboxed container.
Project Resources
GitHub repository: https://github.com/nearai/ironclaw
Reddit AMA (original post): https://www.reddit.com/r/MachineLearning/comments/1rlnwsk/d_ama_secure_version_of_openclaw/
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