Nothing to try yetTier: how much it should matter to you
1Useful: my rating, 1 to 5
2Signal: worth watching, 1 to 5
SubagentsArea: what it touches
In DevelopmentKind: in v2.1.323,
In DevelopmentSection of the release
What
When Claude Code starts a local agent, it builds a list of command-line options for it. Options like --model are switches added to the command that starts a program. That list-building code has a new constant, set to false in this build.
If the constant were true, the agent would be started without --model, --fast-mode and --permission-mode.
Because it is false, that branch never runs, and all three options are still passed, as before.
Several empty placeholder spots were also added to the same list.
The same release includes other groundwork:
Withdrawing instructions from an MCP server now takes an extra input. MCP servers are outside programs that give Claude extra tools.
Plugin commands and agents now take a shownPluginDir value.
Plugin commands and agents add duplicate allowed-tools entries for paths that are shortcuts (symlinks) to other folders, resolved to the real location.
The stock WebFetch tool description, in the capture taken under this release, is 1,608 characters and unchanged.
Why
Nothing behaves differently today, because the new branch is switched off. The sweep agent's reading is that it is a variant prepared for a build where agents would take these settings from somewhere else.
One source agreesOne thing we can check says the same as this entry.
Anthropic's release notes agreeFixed --permission-mode auto or a settings defaultMode: auto starting in a mode that could allow more when auto mode was unavailable. It now…
