home/categories/backend/tanstack-ai-packages-typescript-ai-skills-ai-core-tool-calling-skill-md
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ai-core-tool-calling

Isomorphic tool system: toolDefinition() with Zod schemas, .server() and .client() implementations, passing tools to both chat() on server and useChat/clientTools on client, tool approval flows with needsApproval and addToolApprovalResponse(), lazy tool discovery with lazy:true, rendering ToolCallPart and ToolResultPart in UI.

TanStack
maintainer
TanStack
Updated 4/8/2026
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2529
Forks
172
quick start

Installation and usage

Isomorphic tool system: toolDefinition() with Zod schemas, .server() and .client() implementations, passing tools to both chat() on server and useChat/clientTools on client, tool approval flows with needsApproval and addToolApprovalResponse(), lazy tool discovery with lazy:true, rendering ToolCallPart and ToolResultPart in UI.

Installation
$ install --globalskills.sh
Usage

Once installed, you can use this skill by running the following command in your terminal:

skills use ai-core-tool-calling