{"name":"tengu_plugins_sync_manifest_failed","slug":"tengu-plugins-sync-manifest-failed","family":"flag","title":"Feature flags","noun":"feature flag","description":"An analytics event, not a feature flag. Claude Code logs it when fetching the session sync manifest fails while listing plugin entries, with `unavailable` set when the failure reason is `unavailable`; the same failure for skills logs `tengu_skills_sync_manifest_failed`.","description_source":"code","described_by":{"bundle":"2.1.286","author":"claude-opus-5-5"},"presence":{"first_seen":null,"removed_in":null,"in_current_build":false,"newest_mined":"2.1.309","builds":0,"mined_builds":150,"first_cited":null},"aliases":[],"entries":[{"version":"2.1.210","anchor":"claude-code-sync-session-refs-environment-variable","heading":"CLAUDE_CODE_SYNC_SESSION_REFS Environment Variable","line":null,"released_at":"2026-07-14 19:39:21","reason":"gate cited by this entry, found in this entry's text"}],"entries_total":1,"docs":[],"docs_total":0,"gates":[],"related":[{"name":"tengu_plugins_sync_list_failed","slug":"tengu-plugins-sync-list-failed","description":"Plugin sync failure logs and telemetry now break the failure down by kind and HTTP status."},{"name":"tengu_plugins_sync_mcp_relay_wait","slug":"tengu-plugins-sync-mcp-relay-wait","description":"Internal plugin sync and MCP relay functions were renamed with no behavior change"},{"name":"tengu_plugins_sync_wait_timeout","slug":"tengu-plugins-sync-wait-timeout","description":"Internal plugin sync and MCP relay functions were renamed with no behavior change"}],"url":"https:\/\/changelogs.core-directive.com\/reference\/flag\/tengu-plugins-sync-manifest-failed","family_url":"https:\/\/changelogs.core-directive.com\/reference\/flag.json"}