[stickerdaniel]

SvelteKit 3 moved the resolved adapter from api.options.kit.adapter to api.options.adapter on vite-plugin-sveltekit-setup. detectSvelteKitCloudflareTarget (added in #827) only read the old path, so on SvelteKit 3 the Workers env loader was never injected and nothing read the __VARLOCK_ENV binding. It now reads both shapes.

With SvelteKit 3.0.1 and @sveltejs/adapter-cloudflare 8.0.0, vite build previously logged no detection notice and emitted an init-only SSR chunk. Now the notice is logged and the chunk reads __VARLOCK_ENV, as with SvelteKit 2.

Adds unit tests for both shapes, and a docs note that SvelteKit 3 only supports the Vite config.

SvelteKit references, to check the shape change:

• The migration guide says options that lived under config.kit.* are now top-level.
• adapter is a top-level option in 3.0.1, and a kit key is rejected (L153). In 2.70.3 it lives inside kit.
• The setup plugin exposes the resolved config as api.options in both versions.

[pullfrog]

✅ No new issues found.

Reviewed changes Checked adapter detection, regression tests, documentation, and the patch release entry against SvelteKit's versioned upstream source; all 22 Vite integration tests passed after generating the parser grammar.

• Adapter detection: Supports SvelteKit 3's api.options.adapter while retaining SvelteKit 2's api.options.kit.adapter and the existing Cloudflare loader behavior.
• Regression coverage: Exercises loader injection for both configuration shapes and confirms non-Cloudflare adapters remain unaffected.
• Documentation and release: Clarifies SvelteKit 3's Vite-only configuration and includes a patch release entry for the Vite integration.

Validation used synthetic setup plugins and a mocked loader, not a live SvelteKit 3 build or Workers deployment.

  ^{｜ View workflow run ｜ Using gpt-6.1-sol ｜ 𝕏}

[pullfrog]

No new issues found.

Reviewed changes Reviewed the delta since 70c5136, verified the setup plugin name against SvelteKit 3.0.1's source, and ran all 24 Vite integration tests successfully.

• Restricted flattened adapter detection: Required vite-plugin-sveltekit-setup for the SvelteKit 3 adapter shape, preventing unrelated plugins from shadowing detection while preserving the SvelteKit 2 lookup.
• Added regression coverage: Tested an unrelated top-level adapter preceding SvelteKit and adapter-auto detection with WORKERS_CI=1.

Validation used synthetic setup plugins and a mocked loader, not a live SvelteKit build or Workers deployment.

  ^{｜ View workflow run ｜ Using gpt-6.1-sol ｜ 𝕏}