Forked or background agent queries now track whether they're eligible for relay, gated by tengu_wild_tome, and report it in telemetry
What
When running a forked or background agent query, Claude Code now computes a relayEligible flag (on), which is true only when the fork has no separate agent ID, has forked context messages, keeps the same tool set as its parent, and the tengu_wild_tome feature flag is enabled (it's off by default).
- This flag is passed into the query as
relayFork. - It's recorded as
relayEligiblein thetengu_fork_agent_querytelemetry event and in fork-completion telemetry.
Why
This lays groundwork for relaying forked/background agent queries under certain conditions, while the telemetry field lets this be tracked and rolled out safely via the tengu_wild_tome flag.
tengu_wild_tome Off by default, switched on for this accountThe shipped code defaults this off, and the flag server returned on for the one account this site reads on this version. That is the reading that makes the entry above worth a second look, and it still says nothing about your account.
This account: on · anonymous baseline: on · compiled default in v2.1.273: off
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.
Read once, for one account on one subscription tier, against v2.1.273. It isn't a statement about your account. What a flag value here can and cannot tell you