{"version":"2.1.80","anchor":"fine-grained-tool-streaming-guard","canonical_anchor":"fine-grained-tool-streaming-guard","heading":"Fine-Grained Tool Streaming Guard","tier":null,"area":null,"scope":null,"heads_up":null,"url":"https:\/\/changelogs.core-directive.com\/v\/2.1.80\/e\/fine-grained-tool-streaming-guard","release_url":"https:\/\/changelogs.core-directive.com\/v\/2.1.80","markdown":"### Fine-Grained Tool Streaming Guard\n\nThe `eager_input_streaming` feature for fine-grained tool streaming is now gated to only activate for first-party connections that support extended notifications, preventing incompatible configurations.\n\n**Evidence**\n\nGuard conditions added (search for `\"tengu_fgts\"` in the structural diff)\n\n- Flag `tengu_fgts`: On for this account, and not off by default (read for one account on one subscription tier against v2.1.80; this account: on, anonymous baseline: on, compiled default: no gate table built for this version) These values were read against a different version of Claude Code, so treat them as the nearest reading available instead of one taken on this release."}