Documentation Index
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Register built-in and custom tools with approval handlers, authorizers, and dynamic registry patterns
agent_with_tools family demonstrates WithTools, WithToolRegistry, WithApprovalHandler, ToolAuthorizer, and the dynamic registry API. Each sub-example isolates one aspect of tool configuration so you can see exactly what each API controls.
Source: examples/agent_with_tools/
| Directory | Demonstrates |
|---|---|
basic | Built-in tools — echo, calculator, weather, wikipedia, search with auto-approval |
approval | WithApprovalHandler — approve or reject each tool (Run) |
authorizer | ToolAuthorizer — programmatic deny before execution |
custom | Custom tool via WithTools |
dynamic_registry | ToolRegistry().Register between runs |
examples/:
go run ./agent_with_tools/basic "What's the weather in Tokyo?"
go run ./agent_with_tools/approval "What is 15 + 27?"
go run ./agent_with_tools/authorizer "Get the protected note for roadmap."
go run ./agent_with_tools/custom "Reverse 'hello world'"
go run ./agent_with_tools/dynamic_registry
# basic — auto-approval, answer printed directly
The current weather in Tokyo is 18°C, partly cloudy with light winds.
# approval — prompt appears for each tool call
Tool call: calculator({"expression":"15+27"})
Approve? [y/n]: y
15 + 27 = 42
# authorizer — programmatic deny
Access denied: you do not have permission to access the protected note.
# custom — custom Reverse tool
"hello world" reversed is "dlrow olleh"
# dynamic_registry — tool added between runs
[Run 1] No tools available.
[Run 2] reversed: "dlrow olleh"