{"version":"2.1.117","anchor":"fork-subagent-feature-gate-gradual-rollout","canonical_anchor":"fork-subagent-feature-gate-gradual-rollout","heading":"Fork Subagent Feature Gate [Gradual Rollout]","tier":null,"area":null,"scope":null,"heads_up":null,"url":"https:\/\/changelogs.core-directive.com\/v\/2.1.117\/e\/fork-subagent-feature-gate-gradual-rollout","release_url":"https:\/\/changelogs.core-directive.com\/v\/2.1.117","markdown":"### Fork Subagent Feature Gate [Gradual Rollout]\n\n**What**\n\nThe `\/fork` command's availability is additionally controlled by a server-side feature flag.\n\n**Status**\n\nGated by `tengu_copper_fox` flag (defaults to `!1`), but can be overridden with `CLAUDE_CODE_FORK_SUBAGENT` environment variable.\n\n**Details**\n\n- When the flag is disabled and the env var is not set, the fork tool is not loaded\n- Setting `CLAUDE_CODE_FORK_SUBAGENT=1` provides a local override\n\n**Evidence**\n\nFork feature gate (search for `\"tengu_copper_fox\"`) \u2014 `MG` at line ~381717\n\n- Flag `tengu_copper_fox`: Off in both readings (read for one account on one subscription tier against v2.1.117; this account: off, anonymous baseline: off, 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."}