feat!: remove useDelayedAutofocus and ToolProviderMark

Nothing in the library, its stories or its known consumers uses
either export, and this release already breaks the chat surface. Drop
them rather than carry untested API: ProviderMark stays, and a host
reads the provider off a tool id itself. The 0.3 upgrade table lists
both with what to use instead.

Author: pratikbuilds

README.md

@@ -331,8 +331,6 @@ The host app owns the connection to the hub; components only take props.
 The old chat family is removed. The conversation family replaces it: a message is a `ConversationMessage` whose `parts` are a `ConversationPart[]` (discriminated by `kind`), and the components are built from parts you compose rather than one component per screen.
 
 - `Part`, `PartText`, `PartReasoning`, `PartToolTrace`, `PartBlock`, `PartFile`, `PartEvent` and `ToolTraceStatus` are unchanged and still import from the root.
-- `ToolProviderMark` takes the raw tool id as `toolName` instead of a `part` (`<ToolProviderMark toolName={part.name} />`); its props are `ToolProviderMarkProps`.
-- `useDelayedAutofocus` is unchanged.
 
 Removed exports and what replaces them:
 
@@ -368,6 +366,8 @@ Removed exports and what replaces them:
 | `messageText`, `reasoningText`, `toolParts`       | No replacement: filter `message.parts` by `kind`                                                                                                                                        |
 | `isTurnWorking`                                   | `parts.some((p) => p.kind === "tool-trace" && p.status === "running")` (any tool still running; `message.status === "streaming"` is the whole message)                                  |
 | `toolLabel`                                       | No replacement: `ToolHeader` shows the raw tool name, after the `label` you pass                                                                                                        |
+| `ToolProviderMark`, `ToolProviderMarkProps`       | `ProviderMark` with the provider read off the tool id (`name.split("__")[0]`, for ids shaped `provider__operation`)                                                                     |
+| `useDelayedAutofocus`                             | No replacement: focus the element from an effect once its entrance has finished                                                                                                         |
 
 ## Upgrading from 0.1
 

src/hooks/use-delayed-autofocus.ts

@@ -14,7 +14,6 @@ export * from "./blocks/login/auth-layout.js";
 export * from "./blocks/login/login-form.js";
 export * from "./hooks/use-command-palette-navigation.js";
 export * from "./hooks/use-controllable-state.js";
-export * from "./hooks/use-delayed-autofocus.js";
 export * from "./hooks/use-dismissable-popover.js";
 export * from "./hooks/use-list-selection.js";
 export * from "./hooks/use-prefers-reduced-motion.js";

src/index.ts

@@ -48,27 +48,3 @@ export function ProviderMark({
     </span>
   );
 }
-
-export type ToolProviderMarkProps = {
-  /** Raw tool id, e.g. `slack__post_message`. */
-  readonly toolName: string;
-  readonly logo?: ReactNode;
-  readonly className?: string | undefined;
-};
-
-/**
- * The provider marker for a tool call in a transcript.
- *
- * The provider is read off the tool id's `provider__operation` prefix, so a
- * tool with no prefix is local and gets no marker rather than a guessed one.
- */
-export function ToolProviderMark({
-  toolName,
-  logo,
-  className,
-}: ToolProviderMarkProps) {
-  const [provider, ...rest] = toolName.split("__");
-  if (rest.length === 0 || provider === undefined || provider === "")
-    return null;
-  return <ProviderMark provider={provider} logo={logo} className={className} />;
-}