Overview

Tools give an agent the ability to interact with the outside world beyond reasoning: web search, code execution, image and video generation, access to third-party services, and more. VeADK packages these capabilities as tools you can register directly. At runtime the agent decides on its own — based on user input and its instruction — whether to call a tool; the framework executes it automatically and feeds the result back into the reasoning process.

Adding tools to an agent

Whatever the tool type, registration is the same: put the tool in the Agent’s tools list.

from veadk import Agent
from veadk.tools.builtin_tools.web_search import web_search

agent = Agent(tools=[web_search])

Once registered, the agent decides when to call a tool and how to pass arguments, based on the function signature / tool description, the user input, and its instruction. Multiple tools can be registered at once, and the agent picks among them as needed during reasoning.

Tool categories

VeADK tools are grouped by how they connect and what they do.

Category	Description	Docs
Built-in tools	Native function tools VeADK ships ready to use (web search, image / video generation, code sandboxes, and more)	Web search
Built-in MCP tools	Tool sets connected over MCP (Model Context Protocol) — Feishu / Lark, the LAS data lake, Video-on-Demand (VOD), MCP Router, Supabase	Feishu Lark MCP
Custom tools	Wrap any Python function as a tool to extend the agent	Custom tools
System tools	Retrieval tools the framework mounts automatically from the agent’s configuration (knowledge base, long-term memory)	Load a knowledge base, load memory
Guardrail tool	Callback-based content-safety review that blocks unsafe input and output	Content safety
Feishu Channel extension	Bridge inbound Feishu bot messages into the `Runner`	Feishu Channel extension

Built-in tools and built-in MCP tools mostly depend on Volcengine services — enable the corresponding service and configure authentication (AK/SK, API keys) before use. System tools are managed by the framework and need not be added to the tools list manually.

Last modified on September 19, 2026

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Overview

Adding tools to an agent

Tool categories

​Adding tools to an agent

​Tool categories

Adding tools to an agent

Tool categories