Flagship - Evaluate Flagship flags locally

Flagship bindings now evaluate flags against a local flag store during local development, instead of calling your remote app. You can develop offline and test flag changes without affecting production. This applies to wrangler dev, the Cloudflare Vite plugin, the Vitest integration, and cf dev.

The local store starts empty, so evaluations return the default value you pass in code. Add and manage local flags in any of these ways:

• Wrangler — Add --local to wrangler flagship flags commands, such as create, update, and evaluate. To copy all flags from your remote app, run npx wrangler flagship flags pull <APP_ID>.
• Local Explorer — Create, edit, toggle, and evaluate flags in Local Explorer while your dev server runs.
• cf CLI — Add --local to cf flagship commands.

To keep evaluating against your remote app instead, set remote: true on the binding.

The local flag store requires Wrangler v4.135.0 or @cloudflare/vite-plugin v1.56.0 or later. Flagship in Local Explorer requires Wrangler v4.148.0 or @cloudflare/vite-plugin v1.63.0 or later.

Refer to Flagship local development for details.