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 v2.1.239 Home All releases olderv2.1.238 v2.1.240newer
Claude Code v2.1.239

Settings pushed over the control channel are screened before touching plugin forwarding

Under the hood
Useful2 Signal3
Plugins

Settings pushed from the control channel are checked before they can change plugin forwarding, and refusals are logged.

Feature flag
tengu_violin_amati Off in both readings

The flag server returned off for the account this site reads and for the anonymous baseline. A reading of off cannot rule out a rollout these two readings sit outside of.

This account: off · anonymous baseline: off · compiled default in v2.1.239: on

tengu_violin_wood Off in both readings

The flag server returned off for the account this site reads and for the anonymous baseline. A reading of off cannot rule out a rollout these two readings sit outside of.

This account: off · anonymous baseline: off · compiled default in v2.1.239: on

Read once, for one account on one subscription tier, against v2.1.239. It isn't a statement about your account. What a flag value here can and cannot tell you

What

A settings update arriving from the control channel that would change plugin forwarding now passes an admission check first; refusals are logged with a reason and the update is rejected rather than applied quietly. Plugin reload also waits, up to a cap, for a feature flag before installing.

Details
  • The wait resolves tengu_violin_amati together with tengu_violin_wood; both fall back to off, so on a stock build the wait ends without enabling anything.
Evidence

plugin_forwarding_patch_refused

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

See this entry in the whole of v2.1.239 →