Content-only tool result (structuredContent pinned to never).
structuredContent
never
Prefer returning a raw CallToolResult: { content: [{ type: "text", text }] }.
{ content: [{ type: "text", text }] }
Optional
Protocol extension metadata.
Model-visible content blocks.
Whether the result represents a tool-domain error.
Content-only helpers never provide structured content.
Content-only tool result (
structuredContentpinned tonever).Deprecated
Prefer returning a raw CallToolResult:
{ content: [{ type: "text", text }] }.