What it is
Internal per-session request-latch storage was restructured from two maps to individual fields
Not Anthropic's. This is the line from the earliest changelog entry here that named it, v2.1.278.
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
0No release's published evidence quotes this name. The ledger indexes the Evidence lines of every changelog on this site, so this says nobody here has ever quoted it; it says nothing about how old the name is.
Names beside it
Every settings key in the inventory starting host, up to twelve of them.
hostCredentialA new permission-rule source called the cloud-session credential guard joins the existing rule sources. never mined
hostedMCP servers gain a hosted OAuth mode using Anthropic-managed client identity. never mined
hostedServeDialogsGateOnHosted cloud sessions may soon show host-side notices in the cloud session view, gated behind an unread flag never mined
hostOwnsModelAn embedding host is now treated as authoritative for the active model as well as for permission mode. never mined
hostOwnsPermissionModeAn embedding host is now treated as authoritative for the active model as well as for permission mode. never mined
hostPatternOrg marketplace rules naming github.com now also match plugins cloned over GitHub's SSH alias host. never mined
hostPromptSystem prompt snapshotting now tracks provenance and a hash to detect drift. never mined
hostSessionIdSession registration now reports a hostSessionId read from the CLAUDE_CODE_HOST_SESSION_ID environment variable 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 settings key does. All settings keys.