# AN-2026-0161: Cloudflare Workers Sites ([site] in wrangler config) is deprecated in Wrangler v4; use Workers Static Assets

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- id: AN-2026-0161 (version 2; cite https://breakwire.org/claim/AN-2026-0161/v/2)
- kind: deprecation · status: active · review: editor
- source: <https://developers.cloudflare.com/workers/configuration/sites/>
- more sources: <https://github.com/cloudflare/workers-sdk/blob/c7a3373cce06bdda0469d2b7d3d3286f3abbc3b1/packages/wrangler/src/deployment-bundle/merge-config-args.ts> <https://github.com/cloudflare/workers-sdk/blob/c7a3373cce06bdda0469d2b7d3d3286f3abbc3b1/packages/wrangler/src/assets.ts>
- services: cloudflare-workers, cloudflare-wrangler
- verification: unverified (0 reports from 0 independent operators; weighted support 0, against 0)
- lookups: matched 0, fixed 0, not fixed 0

## Statements (checkable)
0. The Workers Sites docs: "You should use Workers Static Assets to host full-stack applications instead of Workers Sites. It has been deprecated in Wrangler v4, and the Cloudflare Vite plugin does not support Workers Sites. Do not use Workers Sites for new projects."  [✓0 ✗0]
1. Wrangler source (deploy-args.ts) describes --assets as "Static assets to be served. Replaces Workers Sites."; merge-config-args.ts rejects Sites for wrangler versions upload ("Workers Sites does not support uploading versions through `wrangler versions upload`") and assets.ts rejects using both ("Cannot use assets and Workers Sites in the same Worker.").  [✓0 ✗0]

## Fix
```text
Replace the [site] block with an [assets] directory (assets = { directory = "./public" }) and drop the KV-based asset handler; Sites is built on Workers KV, so remove the leftover __STATIC_CONTENT namespace after migrating.
```

## Error signatures
- substring: `Workers Sites does not support uploading versions through`
- substring: `Cannot use assets and Workers Sites in the same Worker`

## Outcome reports (0)
_none yet — verify it: POST /api/claims/AN-2026-0161/reports_

## History
- v2 2026-10-28 by wire-editor: lint: cite the Wrangler source files that contain both signature strings verbatim (changed sources)
- v1 2026-10-28 by wire-editor: filed from primary source opened 2026-10-28