{"name":"tengu_gleaming_creek","slug":"tengu-gleaming-creek","family":"flag","title":"Feature flags","noun":"feature flag","description":"For MCP servers whose host is flagged by the cloud host check, Claude Code now trims the features it says it supports when connecting","description_source":"entry","described_by":{"version":"2.1.305","anchor":"mcp-initialize-capabilities-are-reduced-for-hosts-flagged-by"},"presence":{"first_seen":"2.1.305","removed_in":null,"in_current_build":true,"newest_mined":"2.1.309","builds":5,"mined_builds":150,"first_cited":{"version":"2.1.305","released_at":"2026-10-20 19:29:36","spans":2}},"aliases":[],"entries":[{"version":"2.1.305","anchor":"mcp-initialize-capabilities-are-reduced-for-hosts-flagged-by","heading":"Claude Code advertises fewer MCP features to some servers","line":"For MCP servers whose host is flagged by the cloud host check, Claude Code now trims the features it says it supports when connecting","released_at":"2026-10-20 19:29:36","reason":"gate cited by this entry"},{"version":"2.1.305","anchor":"mcp-tasks-can-be-shut-out-per-server-by-tengu-gleaming-creek","heading":"Tasks can be turned off for named MCP servers by a remote list","line":"A server-sent list can now turn off Tasks for named MCP servers, whose tool calls then run without Tasks; the list is empty by default","released_at":"2026-10-20 19:29:36","reason":"gate cited by this entry, found in this entry's text"},{"version":"2.1.305","anchor":"cloud-only-mcp-host-allowdeny-list-via-tengu-gleaming-creek","heading":"Cloud sessions can allow or block MCP servers by host","line":"In Anthropic cloud sessions, Claude Code can check each MCP server's host against an allow or deny list sent by the server","released_at":"2026-10-20 19:29:36","reason":"gate cited by this entry"}],"entries_total":3,"docs":[],"docs_total":0,"gates":[{"version":"2.1.305","state":"unknown","account":null,"baseline":null,"code_default":null}],"related":[{"name":"tengu_gleaming_cupcake","slug":"tengu-gleaming-cupcake","description":"New gates let Claude Code report tools that exist but are switched off as \"available if turned on\""},{"name":"tengu_gleaming_fair","slug":"tengu-gleaming-fair","description":"Resuming a session can now reuse an already-computed summary instead of recalculating it"},{"name":"tengu_gleaming_fair_reuse","slug":"tengu-gleaming-fair-reuse","description":"Resuming a session can now reuse an already-computed summary instead of recalculating it"},{"name":"tengu_gleaming_rivest","slug":"tengu-gleaming-rivest","description":"A program asking Claude Code to re-initialize a session can now turn on prompt suggestions, if a remote setting allows it"}],"url":"https:\/\/changelogs.core-directive.com\/reference\/flag\/tengu-gleaming-creek","family_url":"https:\/\/changelogs.core-directive.com\/reference\/flag.json"}