Source Intelligence

DisclaimerUnofficial, and not affiliated with Anthropic. Nearly all of this is read straight out of what ships: npm bundles, captured prompts, published docs. Anthropic's own notes go in verbatim, marked as theirs. The rest is my reading, and every entry carries the strings behind it. If one looks wrong, vote it down and say why.

All of v2.1.240 Home All releases olderv2.1.239 v2.1.241newer
Claude Code v2.1.240

"Switch your default effort to medium?" prompt, complete but with no text to show

Not switched on
Useful3 Signal4
Effort Levels Notable

A one-time prompt offering to switch your default effort to medium exists but has no text.

The effort-medium dialog is fully wired into the prompt sequence but its required wording comes from a remote config key that ships empty.

Feature flag
tengu_radiant_island Not enough to say

Nothing here resolved what this flag was doing on this version, so nothing here should be read as on or off.

This account: no value returned · anonymous baseline: no value returned · compiled default in v2.1.240: not a boolean we can read

Read once, for one account on one subscription tier, against v2.1.240. It isn't a statement about your account. What a flag value here can and cannot tell you

What

A one-time dialog offering to change your saved default effort from high to medium, confirming with Effort set to medium and saved as your default or a warning if the write fails. It is fully reachable in the prompt sequence, ahead of the LSP and plugin hints, and marks itself seen so it appears at most once. But its wording comes entirely from the remote config key tengu_radiant_island, whose in-binary value is an empty object and whose body text is required, so with no server value the dialog never appears.

Details
  • Only the body text is required; title, confirm label and cancel label have in-code defaults.
  • You are only eligible if you have no effort pinned anywhere, or have pinned high in your user settings. Any other configuration disqualifies.
  • The parent picks it as effort-medium-nudge in the same chain as the fullscreen upsell and remote callouts.
Evidence

Switch your default effort to medium?

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 v2.1.240 →