> ## Documentation Index
> Fetch the complete documentation index at: https://smithers.sh/llms.txt
> Use this file to discover all available pages before exploring further.

# closeBrowserSession

> Gateway browser service RPC.

`closeBrowserSession` controls a gateway-local ephemeral Chromium session.

* Method: `closeBrowserSession`
* Scope: `run:write`
* Transports: HTTP RPC, WebSocket RPC

Request: `{ sessionId }`. Response: `{ closed, sessionId }`; closing wipes the ephemeral context.

Errors are versioned as `v1` and include `InvalidRequest`, `Unauthorized`, `Forbidden`, `REVISION_CONFLICT`, `SSRF_BLOCKED`, `QUOTA_EXCEEDED`, and `Internal`.