{"name":"tengu_sdk_oauth_refresh_unfulfilled","slug":"tengu-sdk-oauth-refresh-unfulfilled","family":"flag","title":"Feature flags","noun":"feature flag","description":"An SDK host can now refuse to refresh your login token and say why.","description_source":"entry","described_by":{"version":"2.1.236","anchor":"sdk-hosts-can-decline-an-oauth-token-refresh-and-say-why"},"presence":{"first_seen":null,"removed_in":null,"in_current_build":false,"newest_mined":"2.1.309","builds":0,"mined_builds":150,"first_cited":{"version":"2.1.236","released_at":"2026-08-19 18:45:14","spans":1}},"aliases":[],"entries":[{"version":"2.1.236","anchor":"sdk-hosts-can-decline-an-oauth-token-refresh-and-say-why","heading":"SDK hosts can decline an OAuth token refresh and say why","line":"An SDK host can now refuse to refresh your login token and say why.","released_at":"2026-08-19 18:45:14","reason":"gate cited by this entry, found in this entry's text"}],"entries_total":1,"docs":[],"docs_total":0,"gates":[],"related":[{"name":"tengu_sdk_malformed_input","slug":"tengu-sdk-malformed-input","description":"Odd or damaged input frames on remote connections are now fixed up or quietly dropped instead of erroring out."},{"name":"tengu_sdk_mcp_manifests","slug":"tengu-sdk-mcp-manifests","description":"SDK-registered in-process MCP servers can now skip a round-trip handshake at session start"},{"name":"tengu_sdk_memory_summary","slug":"tengu-sdk-memory-summary","description":"SDK memory usage sampling for child processes now runs asynchronously and in parallel"},{"name":"tengu_sdk_result","slug":"tengu-sdk-result","description":"SDK session-result telemetry now includes the user message id being processed at session end."},{"name":"tengu_sdk_session_crash","slug":"tengu-sdk-session-crash","description":"SDK session crash telemetry now logs the actual error that caused the crash"},{"name":"tengu_sdk_workspace_trust","slug":"tengu-sdk-workspace-trust","description":"SDK\/host initialize can now grant directory trust programmatically via a validated workspaceTrust option"}],"url":"https:\/\/changelogs.core-directive.com\/reference\/flag\/tengu-sdk-oauth-refresh-unfulfilled","family_url":"https:\/\/changelogs.core-directive.com\/reference\/flag.json"}