Native Plugins

The current native plugin layer is implemented by vs-plugin-wasi.

Current model

Today, the runtime uses a typed descriptor backed by component.toml plus a versioned WIT contract stored at:

crates/vs-plugin-wasi/wit/vs-plugin.wit

Descriptor layout

[plugin]
name = "deno"
description = "Fixture native plugin"
aliases = ["denojs"]
legacy_filenames = [".deno-version"]

[[versions]]
version = "1.40.5"
source = "packages/1.40.5"
note = "Current fixture release"

[[env]]
key = "DENO_HOME"
value = "{install_dir}"

[[env]]
key = "VS_DENO_HOME"
value = "{install_dir}"

What the runtime reads

The current descriptor runtime loads:

• static plugin metadata
• available versions
• installation source paths
• environment key templates
• plugin-specific legacy filenames

Design direction

The native plugin contract is intentionally explicit. The typed descriptor model keeps today's implementation easy to test while leaving room for a fuller component-hosting model later, without changing the rest of the workspace API.