Parameter ''x-Cwd'' removed from POST /v2/sandboxes/sessions/{sessionId}/fs/write

What changed

Parameter ''x-Cwd'' removed from POST /v2/sandboxes/sessions/{sessionId}/fs/write Affected surface: POST /v2/sandboxes/sessions/{sessionId}/fs/write. Root cause: parameter `'x-Cwd'@header`. Detected at Tue, 01 Sep 2026 13:06:27 UTC UTC.

Diff

{
  "parameter_in": "header",
  "parameter_name": "'x-Cwd'",
  "path": "POST /v2/sandboxes/sessions/{sessionId}/fs/write"
}

Likely impact

Existing integrations relying on this surface will fail or behave incorrectly. Treat this as a release-blocker until the recommended action below is applied.

Recommended action

Remove the parameter from your callers — passing it now produces an error or is silently ignored depending on the provider.