{"name":"CLOUDSDK_CONFIG","slug":"cloudsdk-config","family":"env","title":"Environment variables","noun":"environment variable","description":"AWS and Google custom endpoint variables are now forwarded and scrubbed deliberately.","description_source":"entry","described_by":{"version":"2.1.239","anchor":"aws-and-google-endpoint-variables-handled-explicitly"},"presence":{"first_seen":"2.1.138","removed_in":null,"in_current_build":true,"newest_mined":"2.1.309","builds":150,"mined_builds":150,"first_cited":null},"aliases":[],"entries":[{"version":"2.1.285","anchor":"vertex-model-accessibility-probing-and-memory","heading":"Claude Code can check and remember which Vertex AI models you can use","line":"On Vertex AI, Claude Code can test whether the default and fallback models are available, remember the result and record models that were refused","released_at":"2026-09-29 17:32:09","reason":"found in this entry's text"},{"version":"2.1.239","anchor":"aws-and-google-endpoint-variables-handled-explicitly","heading":"AWS and Google endpoint variables handled explicitly","line":"AWS and Google custom endpoint variables are now forwarded and scrubbed deliberately.","released_at":"2026-08-21 17:18:54","reason":"found in this entry's text"}],"entries_total":2,"docs":[],"docs_total":0,"gates":[],"related":[{"name":"CLOUDSDK_ACTIVE_CONFIG_NAME","slug":"cloudsdk-active-config-name","description":"Names the active gcloud configuration. It is part of the hash that names the lock and outcome files Claude Code uses when running the `gcpAuthRefresh` command. When building its GCP credential fingerprint, Claude Code reads `configurations\/config_<name>` from the gcloud config directory using this name, else the contents of the `active_config` file, else `default`; no fingerprint is built when the `active_config` file does not exist, even if this variable is set."},{"name":"CLOUDSDK_AUTH_ACCESS_TOKEN","slug":"cloudsdk-auth-access-token","description":"gh, aws, gcloud, bq and gsutil get placeholder credentials so they authenticate through the proxy instead of failing."},{"name":"CLOUDSDK_CORE_CUSTOM_CA_CERTS_FILE","slug":"cloudsdk-core-custom-ca-certs-file","description":null},{"name":"CLOUDSDK_PROXY_USERNAME","slug":"cloudsdk-proxy-username","description":"Concurrent sandboxes now get unique proxy usernames instead of sharing one identity."}],"url":"https:\/\/changelogs.core-directive.com\/reference\/env\/cloudsdk-config","family_url":"https:\/\/changelogs.core-directive.com\/reference\/env.json"}