Apps hosts: workerd runtime, git and local sources, host wiring

[RhysSullivan]

Runs published app tools in workerd on both tiers and adds the source sync path.

• New kernel package runtime-workerd-subprocess: spawns npm-installed workerd with a loopback tool bridge, outbound blocked for execution workers.
• AppSource seam with two backings: any https git remote (hand-rolled smart-HTTP client, depth-1 fetch, SHA-pinned refs) and local directories on filesystem hosts.
• Publish bundling through @cloudflare/worker-bundler running inside workerd, npm registry only.
• Sync routes and wiring for selfhost and cloud.

Stack

1. Extend the plugin seam for virtual-tool plugins #1361
2. Apps engine: custom tool authoring, publish pipeline, and catalog plugin #1362
3. Apps hosts: workerd runtime, git and local sources, host wiring #1363 👈 current
4. Apps console: source management UI and e2e coverage #1365

[cloudflare-workers-and-pages]

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Status	Name	Latest Commit	Preview URL	Updated (UTC)
✅ Deployment successful! View logs	executor-marketing	6339ff8	Commit Preview URL Branch Preview URL	Jul 08 2026, 11:58 PM

[github-actions]

Cloudflare preview

Torn down — the PR is closed.

[cloudflare-workers-and-pages]

Deploying with    Cloudflare Workers

The latest updates on your project. Learn more about integrating Git with Workers.

Status	Name	Latest Commit	Updated (UTC)
✅ Deployment successful! View logs	executor-cloud	6339ff8	Jul 08 2026, 11:59 PM

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commit: 86bada7