🚀 Use Symfony's autowiring to dynamically inject AI tools

[robiningelbrecht]

I'm making extensive use of the tools feature to build an AI Agent, and I’ve set up a pattern that might be useful for others working with Symfony.

Tag Your Tools Automatically

First, I configure Symfony to automatically tag all services implementing ToolInterface

services:
    _instanceof:
        NeuronAI\Tools\ToolInterface:
            tags: [ 'app.ai_tool' ]

Inject All Tools Into a Toolkit

Next, I use the #[AutowireIterator] attribute to collect all tagged tools and inject them into a `Toolkit class

final class Toolkit extends AbstractToolkit
{
    public function __construct(
        #[AutowireIterator('app.ai_tool')]
        private readonly iterable $tools,
    ) {
    }

    /**
     * @return \NeuronAI\Tools\ToolInterface[]
     */
    public function provide(): array
    {
        return iterator_to_array($this->tools);
    }
}

Wiring the Toolkit into Your Agent

Once the toolkit is set up, injecting it into the agent and using it is straightforward:

      $agent = new self()
          ->withProvider($provider)
          ->addTool($toolkit)
          ->observe(
              new AgentMonitoring($inspector)
          );

      return $agent;

[robiningelbrecht]

Link to the PR with the actual implementation: https://github.com/robiningelbrecht/statistics-for-strava/pull/358/files

[ilvalerione]

Very clear pattern. Thank you for sharing!