[v5.0] reproduction: could not reproduce addToolResult does not work with MCP tools dynamic-tool

[ai-sdk-factory]

Bug

addToolResult does not work with MCP tools (dynamic-tool)

Reproduction

• The reported regression existed in ai@5.0.0: addToolResult filtered with isToolUIPart, which excluded MCP dynamic-tool parts.
• The checked-out target contains ai@5.0.252; packages/ai/src/ui/chat.ts now handles static and dynamic tool parts through isToolOrDynamicToolUIPart.
• packages/ai/CHANGELOG.md records the fix in ai@5.0.23, so upgrading to ai@5.0.23 or newer resolves the reported behavior without application workarounds.
• examples/ai-functions/src/reproduction/issue-7868.ts, supported by examples/ai-functions/package.json, verifies the expected HITL outcome: addToolResult changes the dynamic MCP tool to output-available, preserves its output, and sendMessage() submits that updated part; all assertions passed.
• The separate comment about automatic MCP execution through a custom GraphQL streaming implementation could not be independently evaluated because no isolated provider, model, or transport setup was supplied; it does not change the primary result.

Relevant Documentation

• https://v5.ai-sdk.dev/docs/ai-sdk-ui/chatbot-with-tool-calling
• https://ai-sdk.dev/docs/reference/ai-sdk-ui/use-chat

Related Issues

Could not reproduce #7868