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 v2.1.175 Home All releases olderv2.1.174 v2.1.176newer
Claude Code v2.1.175

Sharper Model Restriction Notifications for Agents

When an agent or skill requests a model that is blocked by the availableModels allowlist, a medium-priority warning notification is now shown to the user identifying which agent type made the request and what restriction was applied. Previously, blocked model requests could fail silently.

Evidence

New onModelRestricted callback in agent invocation (search for "agent-model-restricted-")

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 v2.1.175 →