docs: add docs to CB

Pretty much every class and method should have documentation now.

ref: N25B-295
This commit is contained in:
2025-11-24 21:58:22 +01:00
parent 54502e441c
commit 129d3c4420
26 changed files with 757 additions and 80 deletions

View File

@@ -30,19 +30,30 @@ class AgentDirectory:
class BaseAgent(ABC):
"""
Abstract base class for all agents. To make a new agent, inherit from
`control_backend.agents.BaseAgent`, not this class. That ensures that a
logger is present with the correct name pattern.
Abstract base class for all agents in the system.
When subclassing, the `setup()` method needs to be overwritten. To handle
messages from other agents, overwrite the `handle_message()` method. To
send messages to other agents, use the `send()` method. To add custom
behaviors/tasks to the agent, use the `add_background_task()` method.
This class provides the foundational infrastructure for agent lifecycle management, messaging
(both intra-process and inter-process via ZMQ), and asynchronous behavior execution.
.. warning::
Do not inherit from this class directly for creating new agents. Instead, inherit from
:class:`control_backend.agents.base.BaseAgent`, which ensures proper logger configuration.
:ivar name: The unique name of the agent.
:ivar inbox: The queue for receiving internal messages.
:ivar _tasks: A set of currently running asynchronous tasks/behaviors.
:ivar _running: A boolean flag indicating if the agent is currently running.
:ivar logger: The logger instance for the agent.
"""
logger: logging.Logger
def __init__(self, name: str):
"""
Initialize the BaseAgent.
:param name: The unique identifier for this agent.
"""
self.name = name
self.inbox: asyncio.Queue[InternalMessage] = asyncio.Queue()
self._tasks: set[asyncio.Task] = set()
@@ -53,11 +64,27 @@ class BaseAgent(ABC):
@abstractmethod
async def setup(self):
"""Overwrite this to initialize resources."""
"""
Initialize agent-specific resources.
This method must be overridden by subclasses. It is called after the agent has started
and the ZMQ sockets have been initialized. Use this method to:
* Initialize connections (databases, APIs, etc.)
* Add initial behaviors using :meth:`add_behavior`
"""
pass
async def start(self):
"""Starts the agent and its loops."""
"""
Start the agent and its internal loops.
This method:
1. Sets the running state to True.
2. Initializes ZeroMQ PUB/SUB sockets for inter-process communication.
3. Calls the user-defined :meth:`setup` method.
4. Starts the inbox processing loop and the ZMQ receiver loop.
"""
self.logger.info(f"Starting agent {self.name}")
self._running = True
@@ -79,7 +106,11 @@ class BaseAgent(ABC):
await self.add_behavior(self._receive_internal_zmq_loop())
async def stop(self):
"""Stops the agent."""
"""
Stop the agent.
Sets the running state to False and cancels all running background tasks.
"""
self._running = False
for task in self._tasks:
task.cancel()
@@ -87,7 +118,16 @@ class BaseAgent(ABC):
async def send(self, message: InternalMessage):
"""
Sends a message to another agent.
Send a message to another agent.
This method intelligently routes the message:
* If the target agent is in the same process (found in :class:`AgentDirectory`),
the message is put directly into its inbox.
* If the target agent is not found locally, the message is serialized and sent
via ZeroMQ to the internal publication address.
:param message: The message to send.
"""
target = AgentDirectory.get(message.to)
if target:
@@ -101,7 +141,11 @@ class BaseAgent(ABC):
self.logger.debug(f"Sent message {message.body} to {message.to} via ZMQ.")
async def _process_inbox(self):
"""Default loop: equivalent to a CyclicBehaviour receiving messages."""
"""
Internal loop that processes messages from the inbox.
Reads messages from ``self.inbox`` and passes them to :meth:`handle_message`.
"""
while self._running:
msg = await self.inbox.get()
self.logger.debug(f"Received message from {msg.sender}.")
@@ -109,8 +153,11 @@ class BaseAgent(ABC):
async def _receive_internal_zmq_loop(self):
"""
Listens for internal messages sent from agents on another process via ZMQ
and puts them into the normal inbox.
Internal loop that listens for ZMQ messages.
Subscribes to ``internal/<agent_name>`` topics. When a message is received,
it is deserialized into an :class:`InternalMessage` and put into the local inbox.
This bridges the gap between inter-process ZMQ communication and the intra-process inbox.
"""
while self._running:
try:
@@ -125,15 +172,24 @@ class BaseAgent(ABC):
self.logger.exception("Could not process ZMQ message.")
async def handle_message(self, msg: InternalMessage):
"""Override this to handle incoming messages."""
"""
Handle an incoming message.
This method must be overridden by subclasses to define how the agent reacts to messages.
:param msg: The received message.
:raises NotImplementedError: If not overridden by the subclass.
"""
raise NotImplementedError
async def add_behavior(self, coro: Coroutine):
"""
Helper to add a behavior to the agent. To add asynchronous behavior to an agent, define
an `async` function and add it to the task list by calling :func:`add_behavior`
with it. This should happen in the :func:`setup` method of the agent. For an example, see:
:func:`~control_backend.agents.bdi.BDICoreAgent`.
Add a background behavior (task) to the agent.
This is the preferred way to run continuous loops or long-running tasks within an agent.
The task is tracked and will be automatically cancelled when :meth:`stop` is called.
:param coro: The coroutine to execute as a task.
"""
task = asyncio.create_task(coro)
self._tasks.add(task)

View File

@@ -3,6 +3,16 @@ from pydantic_settings import BaseSettings, SettingsConfigDict
class ZMQSettings(BaseModel):
"""
Configuration for ZeroMQ (ZMQ) addresses used for inter-process communication.
:ivar internal_pub_address: Address for the internal PUB socket.
:ivar internal_sub_address: Address for the internal SUB socket.
:ivar ri_command_address: Address for sending commands to the Robot Interface.
:ivar ri_communication_address: Address for receiving communication from the Robot Interface.
:ivar vad_agent_address: Address for the Voice Activity Detection (VAD) agent.
"""
internal_pub_address: str = "tcp://localhost:5560"
internal_sub_address: str = "tcp://localhost:5561"
ri_command_address: str = "tcp://localhost:0000"
@@ -11,6 +21,21 @@ class ZMQSettings(BaseModel):
class AgentSettings(BaseModel):
"""
Names of the various agents in the system. These names are used for routing messages.
:ivar bdi_core_name: Name of the BDI Core Agent.
:ivar bdi_belief_collector_name: Name of the Belief Collector Agent.
:ivar bdi_program_manager_name: Name of the BDI Program Manager Agent.
:ivar text_belief_extractor_name: Name of the Text Belief Extractor Agent.
:ivar vad_name: Name of the Voice Activity Detection (VAD) Agent.
:ivar llm_name: Name of the Large Language Model (LLM) Agent.
:ivar test_name: Name of the Test Agent.
:ivar transcription_name: Name of the Transcription Agent.
:ivar ri_communication_name: Name of the RI Communication Agent.
:ivar robot_speech_name: Name of the Robot Speech Agent.
"""
# agent names
bdi_core_name: str = "bdi_core_agent"
bdi_belief_collector_name: str = "belief_collector_agent"
@@ -25,6 +50,21 @@ class AgentSettings(BaseModel):
class BehaviourSettings(BaseModel):
"""
Configuration for agent behaviors and parameters.
:ivar sleep_s: Default sleep time in seconds for loops.
:ivar comm_setup_max_retries: Maximum number of retries for setting up communication.
:ivar socket_poller_timeout_ms: Timeout in milliseconds for socket polling.
:ivar vad_prob_threshold: Probability threshold for Voice Activity Detection.
:ivar vad_initial_since_speech: Initial value for 'since speech' counter in VAD.
:ivar vad_non_speech_patience_chunks: Number of non-speech chunks to wait before speech ended.
:ivar transcription_max_concurrent_tasks: Maximum number of concurrent transcription tasks.
:ivar transcription_words_per_minute: Estimated words per minute for transcription timing.
:ivar transcription_words_per_token: Estimated words per token for transcription timing.
:ivar transcription_token_buffer: Buffer for transcription tokens.
"""
sleep_s: float = 1.0
comm_setup_max_retries: int = 5
socket_poller_timeout_ms: int = 100
@@ -42,24 +82,60 @@ class BehaviourSettings(BaseModel):
class LLMSettings(BaseModel):
local_llm_url: str = "http://localhost:1234/v1/chat/completions"
local_llm_model: str = "openai/gpt-oss-20b"
request_timeout_s: int = 120
"""
Configuration for the Large Language Model (LLM).
:ivar local_llm_url: URL for the local LLM API.
:ivar local_llm_model: Name of the local LLM model to use.
:ivar request_timeout_s: Timeout in seconds for LLM requests.
"""
local_llm_url: str = "http://localhost:11434/v1/chat/completions"
local_llm_model: str = "gpt-oss"
request_timeout_s: int = 10
class VADSettings(BaseModel):
"""
Configuration for Voice Activity Detection (VAD) model.
:ivar repo_or_dir: Repository or directory for the VAD model.
:ivar model_name: Name of the VAD model.
:ivar sample_rate_hz: Sample rate in Hz for the VAD model.
"""
repo_or_dir: str = "snakers4/silero-vad"
model_name: str = "silero_vad"
sample_rate_hz: int = 16000
class SpeechModelSettings(BaseModel):
"""
Configuration for speech recognition models.
:ivar mlx_model_name: Model name for MLX-based speech recognition.
:ivar openai_model_name: Model name for OpenAI-based speech recognition.
"""
# model identifiers for speech recognition
mlx_model_name: str = "mlx-community/whisper-small.en-mlx"
openai_model_name: str = "small.en"
class Settings(BaseSettings):
"""
Global application settings.
:ivar app_title: Title of the application.
:ivar ui_url: URL of the frontend UI.
:ivar zmq_settings: ZMQ configuration.
:ivar agent_settings: Agent name configuration.
:ivar behaviour_settings: Behavior configuration.
:ivar vad_settings: VAD model configuration.
:ivar speech_model_settings: Speech model configuration.
:ivar llm_settings: LLM configuration.
"""
app_title: str = "PepperPlus"
ui_url: str = "http://localhost:5173"