Show HN: Fantastic Canvas

Category: infrastructure

Tags: agent-kernel, ai-agents, rust, multi-agent, orchestration

Score: 6.5/10 (Innovation: 8, Technical: 7, Documentation: 6, Utility: 5)

Fantastic is a Rust-based kernel for AI agents that unifies humans, models, programs, files, and tools as addressable agents in a single tree, communicating through a single `send` primitive with self-describing reflect/docs protocols. It replaces traditional agent loops and tool-calling APIs with a prompt-taught `<call>` grammar and flat asynchronous messaging, enabling models to wire the system themselves. The project's novel approach to multi-agent orchestration and security (deny-all call gate) makes it interesting for researchers and developers exploring agent infrastructure.

Target audience: AI researchers, backend developers, and infrastructure engineers building agent-based systems

Repository: https://github.com/aisixteen/fantastic · Rust · AGPL-3.0 · 3 stars

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