Enhancements to agent action handling and stega URL filtering

await client.agent.action.generate({
  // ...
  instruction: "Develop a new movie. Use these details to generate the concept: $background ",
  instructionParams: {
    background: {
      type: "groq",
      perspective: 'draft',
      query: "*[_id=$id]",
      params: {
        id: "123456"
      }
    }
  }
})