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All of v2.1.251 Home All releases olderv2.1.250
Claude Code v2.1.251

Workflow subagents now always resolve a model

Under the hood
Useful1 Signal2
Workflows

Workflow subagents now resolve a model on every step rather than only when one is named.

What

The helper that used to stand in for "inherit the parent's model" now returns nothing at all. Because a workflow step's model check compares against that sentinel, the check is now effectively always true, so workflow subagents resolve and pass through a model selection on every step rather than only when a step names one explicitly.

Details
  • Previously the step fired only if it carried its own model override.
  • No flag guards this; it is a hardcoded change in behaviour.
Evidence

`function Xo() {

return; }`

Strings lifted out of the shipped bundle, so the claim above can be checked against them.

Related

Other releases about the same thing. Found by shared names or similar wording; neither means one caused the other.

See this entry in the whole of v2.1.251 →