Provider-specific features now explain why they are unavailable instead of showing generic auth or availability errors.
Details
Channels now say they are unavailable on Bedrock, Vertex, or Foundry.
Fast Mode now says it is only available when using the Anthropic API directly.
Bedrock setup text consistently says “Amazon Bedrock.”
Evidence
Provider-specific messages (search for "Channels are not available on Bedrock, Vertex, or Foundry" and "Fast mode is only available when using the Anthropic API directly")
Strings lifted out of the shipped bundle, so the claim above can be checked against them.
How sure we are
One source agreesOne thing we can check says the same as this entry.
Anthropic's release notes agreeFixed /fast on 3P providers fuzzy-matching to an unrelated skill instead of showing "not available"
