What it is
The device bridge can be muted at runtime, withholding all but one tool and device announcement.
Not Anthropic's. This is the line from the earliest changelog entry here that named it, v2.1.257.
Presence across releases
0The miner has never read a build containing this name. It is here because a changelog entry of ours names it, which is evidence that it existed and not evidence of which releases carried it. The inventory starts at v2.1.138 and everything older than that was never mined.
First cited
1The earliest release whose published evidence quoted tengu_device_bridge_muted was v2.1.257, 1 Sep 2026. That is the oldest release this project wrote about it, so it is a floor on the name's age and not the release that introduced it. It is not a presence reading: which builds carried the name is the table above.
Gate readings
0No release here has a gate table behind it for this flag. Most published releases have none at all: the readings exist only for versions the pipeline captured flag state on.
Names beside it
Every feature flag in the inventory starting tengu_device_bridge, up to twelve of them.
tengu_device_bridge_connect_frameA machine attached to a cloud session but running nothing now advertises itself as idle. never mined
tengu_device_bridge_heartbeat_unsupportedThe device bridge reports its whole connection lifecycle, but none of it fires yet. never mined
tengu_device_bridge_reannounceDevice bridge re-announce events now record reason, outcome and drain timing never mined
tengu_device_bridge_reannounce_contendedDevice bridge re-announce events now record reason, outcome and drain timing never mined
tengu_device_bridge_skippedThe device bridge is skipped entirely when the host's account UUID doesn't match the stored one. never mined
tengu_device_bridge_startedThe device bridge reports its whole connection lifecycle, but none of it fires yet. never mined
Read out of the published npm bundle release by release, and out of Anthropic's own documentation as this site captured it. Nothing on this page is a description anybody here wrote about what the feature flag does. All feature flags.