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feat: Add voice agent SDK module and CLI template
Add comprehensive voice agent support to the Agentex SDK: ## New SDK Module (src/agentex/voice/) - VoiceAgentBase: Base class with state management, interruption handling, guardrail execution, and streaming support - AgentState/AgentResponse: Pydantic models for conversation state - Guardrail/LLMGuardrail: Abstract base classes for implementing guardrails ## New CLI Template (agentex init --voice) - Full project scaffolding for voice agents - Multi-provider LLM support (OpenAI, Azure, SGP, Vertex AI, Mock) - Docker + Kubernetes deployment configuration - Example guardrail structure ## CLI Changes - Added hidden --voice flag to 'agentex init' command - Generates voice-specific project structure ## Dependencies - Added partial-json-parser for streaming JSON parsing - Added google-auth for Vertex AI authentication
1 parent a277f10 commit b019504

19 files changed

Lines changed: 2576 additions & 35 deletions

‎pyproject.toml‎

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@@ -48,6 +48,8 @@ dependencies = [
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"yaspin>=3.1.0",
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"claude-agent-sdk>=0.1.0",
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"anthropic>=0.40.0",
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"partial-json-parser>=0.2.1", # For voice agent streaming JSON parsing
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"google-auth>=2.0.0", # For Vertex AI authentication in voice agents
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]
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requires-python = ">= 3.12,<4"

‎src/agentex/lib/cli/commands/init.py‎

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@@ -1,9 +1,10 @@
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from __future__ import annotations
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from enum import Enum
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from typing import Any, Dict
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from typing import Any, Dict, Optional
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from pathlib import Path
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import typer
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import questionary
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from jinja2 import Environment, FileSystemLoader
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from rich.rule import Rule
@@ -27,6 +28,7 @@ class TemplateType(str, Enum):
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DEFAULT = "default"
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SYNC = "sync"
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SYNC_OPENAI_AGENTS = "sync-openai-agents"
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VOICE = "voice"
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def render_template(
@@ -60,6 +62,7 @@ def create_project_structure(
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TemplateType.DEFAULT: ["acp.py"],
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TemplateType.SYNC: ["acp.py"],
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TemplateType.SYNC_OPENAI_AGENTS: ["acp.py"],
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TemplateType.VOICE: ["acp.py"],
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}[template_type]
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# Create project/code files
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# Now, this is actually the exact same as the project_name because we changed the build root to be ../
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project_path_from_build_root = project_name
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# Create PascalCase class name from agent name
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agent_class_name = "".join(
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word.capitalize() for word in answers["agent_name"].split("-")
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)
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return {
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**answers,
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"project_name": project_name,
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"agent_class_name": agent_class_name,
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"workflow_class": "".join(
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word.capitalize() for word in answers["agent_name"].split("-")
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)
@@ -115,7 +124,14 @@ def get_project_context(answers: Dict[str, Any], project_path: Path, manifest_ro
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}
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def init():
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def init(
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voice: bool = typer.Option(
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False,
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"--voice",
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hidden=True,
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help="Create a voice agent template (LiveKit + Gemini)",
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),
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):
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"""Initialize a new agent project"""
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console.print(
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Panel.fit(
@@ -124,43 +140,48 @@ def init():
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)
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)
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# Use a Rich table for template descriptions
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table = Table(show_header=True, header_style="bold blue")
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table.add_column("Template", style="cyan", no_wrap=True)
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table.add_column("Description", style="white")
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table.add_row(
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"[bold cyan]Async - ACP Only[/bold cyan]",
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"Asynchronous, non-blocking agent that can process multiple concurrent requests. Best for straightforward asynchronous agents that don't need durable execution. Good for asynchronous workflows, stateful applications, and multi-step analysis.",
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)
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table.add_row(
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"[bold cyan]Async - Temporal[/bold cyan]",
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"Asynchronous, non-blocking agent with durable execution for all steps. Best for production-grade agents that require complex multi-step tool calls, human-in-the-loop approvals, and long-running processes that require transactional reliability.",
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)
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table.add_row(
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"[bold cyan]Sync ACP[/bold cyan]",
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"Synchronous agent that processes one request per task with a simple request-response pattern. Best for low-latency use cases, FAQ bots, translation services, and data lookups.",
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)
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console.print()
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console.print(table)
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console.print()
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# If --voice flag is passed, skip the menu and use voice template
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if voice:
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console.print("[bold cyan]Creating Voice Agent template...[/bold cyan]\n")
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template_type = TemplateType.VOICE
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else:
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# Use a Rich table for template descriptions
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table = Table(show_header=True, header_style="bold blue")
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table.add_column("Template", style="cyan", no_wrap=True)
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table.add_column("Description", style="white")
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table.add_row(
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"[bold cyan]Async - ACP Only[/bold cyan]",
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"Asynchronous, non-blocking agent that can process multiple concurrent requests. Best for straightforward asynchronous agents that don't need durable execution. Good for asynchronous workflows, stateful applications, and multi-step analysis.",
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)
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table.add_row(
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"[bold cyan]Async - Temporal[/bold cyan]",
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"Asynchronous, non-blocking agent with durable execution for all steps. Best for production-grade agents that require complex multi-step tool calls, human-in-the-loop approvals, and long-running processes that require transactional reliability.",
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)
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table.add_row(
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"[bold cyan]Sync ACP[/bold cyan]",
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"Synchronous agent that processes one request per task with a simple request-response pattern. Best for low-latency use cases, FAQ bots, translation services, and data lookups.",
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)
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console.print()
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console.print(table)
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console.print()
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# Gather project information
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template_type = questionary.select(
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"What type of template would you like to create?",
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choices=[
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{"name": "Async - ACP Only", "value": TemplateType.DEFAULT},
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{"name": "Async - Temporal", "value": "temporal_submenu"},
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{"name": "Sync ACP", "value": "sync_submenu"},
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],
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).ask()
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def validate_agent_name(text: str) -> bool | str:
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"""Validate agent name follows required format"""
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is_valid = len(text) >= 1 and text.replace("-", "").isalnum() and text.islower()
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if not is_valid:
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return "Invalid name. Use only lowercase letters, numbers, and hyphens. Examples: 'my-agent', 'newsbot'"
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return True
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# Gather project information
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template_type = questionary.select(
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"What type of template would you like to create?",
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choices=[
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{"name": "Async - ACP Only", "value": TemplateType.DEFAULT},
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{"name": "Async - Temporal", "value": "temporal_submenu"},
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{"name": "Sync ACP", "value": "sync_submenu"},
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],
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).ask()
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if not template_type:
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if template_type is None:
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return
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# If Temporal was selected, show sub-menu for Temporal variants

‎src/agentex/lib/cli/templates/voice/.dockerignore.j2‎

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# Python
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__pycache__/
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*.py[cod]
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*$py.class
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*.so
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.Python
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build/
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develop-eggs/
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dist/
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downloads/
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eggs/
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.eggs/
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lib/
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lib64/
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parts/
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sdist/
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var/
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wheels/
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*.egg-info/
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.installed.cfg
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*.egg
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# Environments
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.env**
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.venv
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env/
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venv/
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ENV/
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env.bak/
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venv.bak/
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# IDE
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.idea/
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.vscode/
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*.swp
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*.swo
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# Git
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.git
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.gitignore
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# Misc
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.DS_Store

‎src/agentex/lib/cli/templates/voice/Dockerfile-uv.j2‎

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# syntax=docker/dockerfile:1.3
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FROM python:3.12-slim
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COPY --from=ghcr.io/astral-sh/uv:0.6.4 /uv /uvx /bin/
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# Install system dependencies
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RUN apt-get update && apt-get install -y \
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htop \
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vim \
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curl \
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tar \
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python3-dev \
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postgresql-client \
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build-essential \
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libpq-dev \
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gcc \
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cmake \
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netcat-openbsd \
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nodejs \
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npm \
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&& apt-get clean \
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&& rm -rf /var/lib/apt/lists/**
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RUN uv pip install --system --upgrade pip setuptools wheel
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ENV UV_HTTP_TIMEOUT=1000
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# Copy just the pyproject.toml file to optimize caching
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COPY {{ project_path_from_build_root }}/pyproject.toml /app/{{ project_path_from_build_root }}/pyproject.toml
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WORKDIR /app/{{ project_path_from_build_root }}
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# Install the required Python packages using uv
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RUN uv pip install --system .
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# Copy the project code
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COPY {{ project_path_from_build_root }}/project /app/{{ project_path_from_build_root }}/project
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# Set environment variables
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ENV PYTHONPATH=/app
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# Run the agent using uvicorn
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CMD ["uvicorn", "project.acp:acp", "--host", "0.0.0.0", "--port", "8000"]

‎src/agentex/lib/cli/templates/voice/Dockerfile.j2‎

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# syntax=docker/dockerfile:1.3
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FROM python:3.12-slim
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COPY --from=ghcr.io/astral-sh/uv:0.6.4 /uv /uvx /bin/
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# Install system dependencies
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RUN apt-get update && apt-get install -y \
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htop \
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vim \
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curl \
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tar \
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python3-dev \
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postgresql-client \
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build-essential \
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libpq-dev \
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gcc \
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cmake \
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netcat-openbsd \
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node \
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npm \
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&& apt-get clean \
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&& rm -rf /var/lib/apt/lists/*
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RUN uv pip install --system --upgrade pip setuptools wheel
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ENV UV_HTTP_TIMEOUT=1000
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# Copy just the requirements file to optimize caching
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COPY {{ project_path_from_build_root }}/requirements.txt /app/{{ project_path_from_build_root }}/requirements.txt
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WORKDIR /app/{{ project_path_from_build_root }}
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# Install the required Python packages
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RUN uv pip install --system -r requirements.txt
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# Copy the project code
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COPY {{ project_path_from_build_root }}/project /app/{{ project_path_from_build_root }}/project
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# Set environment variables
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ENV PYTHONPATH=/app
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# Run the agent using uvicorn
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CMD ["uvicorn", "project.acp:acp", "--host", "0.0.0.0", "--port", "8000"]

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