Type Alias ToolResult<TOutput>

Result a tool callback may return, keyed by the tool's inferred output type. Prefer the SDK's raw CallToolResult; interactive calls may return an InputRequiredResult. Deprecated response helpers (text, object, …) return the same envelope and remain accepted.

Without an outputSchema (TOutput = never) any CallToolResult is accepted. With one, the result must carry structuredContent matching the schema or set isError: true — mirroring the SDK's runtime rule, which rejects results from schema'd tools that carry no structured content unless isError is set.

The SDK auto-appends a JSON text block when structuredContent is a non-object value and no type: "text" block is present; for object-shaped payloads include the text serialization yourself:

return {
  content: [{ type: "text", text: JSON.stringify(data) }],
  structuredContent: data,
};
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