# AI Prompt API Legacy Identifiers Virtual Test Suite

This virtual test suite enables `AIPromptAPILegacyIdentifiers` to verify that legacy API identifier surfaces for Extensions (i.e. `inputUsage`, `inputQuota`, `measureInputUsage()`, and `onquotaoverflow`) trigger developer warnings over the inspector protocol.

## Runtime Flags

- `--enable-blink-features=AIPromptAPILegacyIdentifiers`

## Owners

- msw@chromium.org
- iahouma@google.com