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The playground is the interface your agent uses to discover and call tools at runtime.

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Methods

MethodDescription
list_tools(tool_server=None)Returns tool definitions (all servers, or a specific one)
call_tool(tool_server, tool_name, parameters)Invokes a tool and returns a ToolCallResult

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Properties

PropertyTypeDescription
tool_serversdict[str, str]Mapping of server names to base URLs

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HttpToolPlayground

The SDK ships HttpToolPlayground, which implements BasePlayground over HTTP against the Tool Server Protocol. 
from collinear_gym.agents import HttpToolPlayground

env = HttpToolPlayground(
    tool_servers={
        "email": "https://<environment-url>/email",
        "calendar": "https://<environment-url>/calendar",
    },
    timeout_seconds=30.0,
)

tools = env.list_tools()
result = env.call_tool("email", "send_email", {"to": "...", "subject": "...", "body": "..."})