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wasmCloud Community Meeting - December 17, 2025

wasmCloud WebAssembly CNCF Community
Channel wasmCloud
Date December 17, 2025
Duration 10:40
TL;DR

The wasmCloud community is testing Release Candidate 5 (RC5) for wasmCloud 2.0, which brings significant CLI consistency improvements and a simplified wash new command that uses git repositories as project templates. The Linux Foundation announced a new Agentic AI Foundation that will host MCP (Model Context Protocol), highlighting the growing intersection of AI agents and wasmCloud's sandboxing capabilities for security.

Key Takeaways

Summary

RC5 Release and CLI Improvements

The wasmCloud team has released Release Candidate 5 for testing. Lucas and Bailey have been refining CLI consistency, ensuring flags, arguments, and terminology are predictable and well-documented. The command reference documentation has been updated to reflect these changes.

New Project Creation with wash new

The most significant change in RC5 is how wash new works. Previously, users would run a CLI wizard to select their language and project type. Now, users clone directly from a git repository:

wash new <git-url> --name <project-name> --subfolder <path>

The templating feature has been removed from the v2.0 MVP to allow for proper implementation and testing in a future release. This means you can point to any git repository and use it as your starting point, with options to specify a branch, tag, or commit via the --git-ref flag.

Rust Example Updates

The Rust hello world example has been updated to use the WT Rust standard library for WASM components. This change aligns wasmCloud with the broader WebAssembly ecosystem and uses simple async functions for handling HTTP requests.

Configuration Changes in v2.0

The wasmcloud.toml configuration file from v1 is being revamped. Currently, v2.0 uses a config.json file in the .wash subdirectory, but this format will undergo major changes. The team plans to support multiple configuration formats for user flexibility.

Linux Foundation Agentic AI Foundation

The Linux Foundation announced the Agentic AI Foundation (AIF), which will host three projects:

This is particularly relevant to wasmCloud because the community is using wasmCloud's sandboxing capabilities for MCP components to address security concerns. The non-deterministic nature of LLM I/O creates vulnerabilities including prompt injection, remote code execution, lateral movement, and data exfiltration.

Community Recognition

The team acknowledged community contributors, specifically calling out Pavle (five commits in recent weeks) and Dicha along with the Betty Blocks team for their consistent contributions to the project.

Notable Quotes

"The way wash new works right now in RC5 is it's going to grab an example repo, a git reference, and clone that down and you can use that as your starting point."

"We're now using the WT Rust standard library for WASM components in an effort to try to be as ecosystem aligned and centralized as possible."

"The sort of non-deterministic IO of LLMs creates a whole set of opportunities and a whole set of problems that need to be addressed such as prompt injection, remote code execution, lateral movement, and ultimately data exfiltration."

Topics Covered

TimeTopic
00:00Welcome and RC5 announcement
00:45Documentation and CLI consistency updates
01:55How wash new works in RC5
03:27Demo: Creating a Rust project with wash new
05:05Updated Rust hello world example
06:08Linux Foundation Agentic AI Foundation announcement
07:00MCP and Sandbox MCP for security
08:10Q&A: wasmcloud.toml configuration changes
09:08Community contributor recognition
09:53Holiday schedule and wrap-up

References