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freddyaboulton / gradio-agentchatbot

Chat with agents 🤖 and see their thoughts 💭
Apache License 2.0
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tags: [gradio-custom-component, Chatbot, chatbot, agents, streaming, tools] title: gradio_agentchatbot short_description: Chat with agents 🤖 and see their thoughts 💭 colorFrom: blue colorTo: yellow sdk: gradio pinned: false app_file: app.py

gradio_agentchatbot

🤖 Chat UI for displaying the thoughts of LLM Agents 💭

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The gradio_agentchatbot package introduces the AgentChatbot component which can display the thought process and tool usage of an LLM agent. Its message format is compatible with the OpenAI conversation message format.

For example usage with transformers agents, please see the Transformers Usage section.

For general usage, see the General Usage section

For the API reference, see the Initialization section.

Installation

pip install gradio_agentchatbot

or add gradio_agentchatbot to your requirements.txt.

Transformers Usage

For transformers agents, you can use the stream_from_transformers_agent function and yield all subsequent messages.


import gradio as gr
from transformers import load_tool, ReactCodeAgent, HfEngine, Tool
from gradio_agentchatbot import AgentChatbot, stream_from_transformers_agent, ChatMessage
from dotenv import load_dotenv
from langchain.agents import load_tools

# to load SerpAPI key
load_dotenv()

# Import tool from Hub
image_generation_tool = load_tool("m-ric/text-to-image")

search_tool = Tool.from_langchain(load_tools(["serpapi"])[0])

llm_engine = HfEngine("meta-llama/Meta-Llama-3-70B-Instruct")
# Initialize the agent with both tools
agent = ReactCodeAgent(tools=[image_generation_tool, search_tool], llm_engine=llm_engine)

def interact_with_agent(prompt, messages):
    messages.append(ChatMessage(role="user", content=prompt))
    yield messages
    for msg in stream_from_transformers_agent(agent, prompt):
        messages.append(msg)
        yield messages
    yield messages

with gr.Blocks() as demo:
    chatbot = AgentChatbot(label="Agent")
    text_input = gr.Textbox(lines=1, label="Chat Message")
    text_input.submit(interact_with_agent, [text_input, chatbot], [chatbot])

if __name__ == "__main__":
    demo.launch()

AgentChatbot with transformers

General Usage

The AgentChatbot is similar to the core Gradio Chatbot but the key difference is in the expected data format of the value property.

Instead of a list of tuples, each of which can be either a string or tuple, the value is a list of message instances. Each message can be either a ChatMessage or a ChatFileMessage. These are pydantic classes that are compatible with the OpenAI message format. This is how they are defined:

class ThoughtMetadata(GradioModel):
    tool_name: Optional[str] = None
    error: bool = False

class ChatMessage(GradioModel):
    role: Literal["user", "assistant"]
    content: str
    thought_metadata: ThoughtMetadata = Field(default_factory=ThoughtMetadata)

class ChatFileMessage(GradioModel):
    role: Literal["user", "assistant"]
    file: FileData
    thought_metadata: ThoughtMetadata = Field(default_factory=ThoughtMetadata)
    alt_text: Optional[str] = None

In order to properly display data in AgentChatbot, simply return a list of ChatMessage or ChatFileMessage instances from your python function. For example:

def chat_echo(prompt: str, messages: List[ChatMessage | ChatFileMessage]) -> List[ChatMessage | ChatFileMessage]:
    messages.append(ChatMessage(role="user", content=prompt))
    messages.append(ChatMessage(role="assistant", content=prompt))
    return messages

Why a different data format than Gradio core?

The OpenAI data format is the standard format for representing LLM conversations and most API providers have adopted it. By using a compliant data format, it should be easier to use AgentChatbot with multiple API providers and libraries.

What is thought_metadata field for?

You can use this to add additional information data about the current thought, like the names of the tool used. If the thought_metadata.tool_name field is not None, the message content will be displayed in a collapsible tool modal. See below:

Tool Modal

Why are pydantic data classes required?

It should improve developer experience since your editor will auto-complete the required fields and use smart autocomplete for the role class. You will also get an error message if your data does not conform to the data format.

I will probably relax this in the future so that a plain python dict can be passed instead of one of the chat classes.

API Reference

Initialization

name type default description
value ```python list[ChatMessage | ChatFileMessage] | Callable | None ``` None Default value to show in chatbot. If callable, the function will be called whenever the app loads to set the initial value of the component.
label ```python str | None ``` None The label for this component. Appears above the component and is also used as the header if there are a table of examples for this component. If None and used in a `gr.Interface`, the label will be the name of the parameter this component is assigned to.
every ```python float | None ``` None If `value` is a callable, run the function 'every' number of seconds while the client connection is open. Has no effect otherwise. The event can be accessed (e.g. to cancel it) via this component's .load_event attribute.
show_label ```python bool | None ``` None if True, will display label.
container ```python bool ``` True If True, will place the component in a container - providing some extra padding around the border.
scale ```python int | None ``` None relative size compared to adjacent Components. For example if Components A and B are in a Row, and A has scale=2, and B has scale=1, A will be twice as wide as B. Should be an integer. scale applies in Rows, and to top-level Components in Blocks where fill_height=True.
min_width ```python int ``` 160 minimum pixel width, will wrap if not sufficient screen space to satisfy this value. If a certain scale value results in this Component being narrower than min_width, the min_width parameter will be respected first.
visible ```python bool ``` True If False, component will be hidden.
elem_id ```python str | None ``` None An optional string that is assigned as the id of this component in the HTML DOM. Can be used for targeting CSS styles.
elem_classes ```python list[str] | str | None ``` None An optional list of strings that are assigned as the classes of this component in the HTML DOM. Can be used for targeting CSS styles.
render ```python bool ``` True If False, component will not render be rendered in the Blocks context. Should be used if the intention is to assign event listeners now but render the component later.
key ```python int | str | None ``` None if assigned, will be used to assume identity across a re-render. Components that have the same key across a re-render will have their value preserved.
height ```python int | str | None ``` None The height of the component, specified in pixels if a number is passed, or in CSS units if a string is passed.
latex_delimiters ```python list[dict[str, str | bool]] | None ``` None A list of dicts of the form {"left": open delimiter (str), "right": close delimiter (str), "display": whether to display in newline (bool)} that will be used to render LaTeX expressions. If not provided, `latex_delimiters` is set to `[{ "left": "$$", "right": "$$", "display": True }]`, so only expressions enclosed in $$ delimiters will be rendered as LaTeX, and in a new line. Pass in an empty list to disable LaTeX rendering. For more information, see the [KaTeX documentation](https://katex.org/docs/autorender.html).
rtl ```python bool ``` False If True, sets the direction of the rendered text to right-to-left. Default is False, which renders text left-to-right.
show_share_button ```python bool | None ``` None If True, will show a share icon in the corner of the component that allows user to share outputs to Hugging Face Spaces Discussions. If False, icon does not appear. If set to None (default behavior), then the icon appears if this Gradio app is launched on Spaces, but not otherwise.
show_copy_button ```python bool ``` False If True, will show a copy button for each chatbot message.
avatar_images ```python tuple[str | Path | None, str | Path | None] | None ``` None Tuple of two avatar image paths or URLs for user and bot (in that order). Pass None for either the user or bot image to skip. Must be within the working directory of the Gradio app or an external URL.
sanitize_html ```python bool ``` True If False, will disable HTML sanitization for chatbot messages. This is not recommended, as it can lead to security vulnerabilities.
render_markdown ```python bool ``` True If False, will disable Markdown rendering for chatbot messages.
bubble_full_width ```python bool ``` True If False, the chat bubble will fit to the content of the message. If True (default), the chat bubble will be the full width of the component.
line_breaks ```python bool ``` True If True (default), will enable Github-flavored Markdown line breaks in chatbot messages. If False, single new lines will be ignored. Only applies if `render_markdown` is True.
likeable ```python bool ``` False Whether the chat messages display a like or dislike button. Set automatically by the .like method but has to be present in the signature for it to show up in the config.
layout ```python Literal["panel", "bubble"] | None ``` None If "panel", will display the chatbot in a llm style layout. If "bubble", will display the chatbot with message bubbles, with the user and bot messages on alterating sides. Will default to "bubble".
placeholder ```python str | None ``` None a placeholder message to display in the chatbot when it is empty. Centered vertically and horizontally in the TestChatbot. Supports Markdown and HTML. If None, no placeholder is displayed.

Events

name description
change Triggered when the value of the TestChatbot changes either because of user input (e.g. a user types in a textbox) OR because of a function update (e.g. an image receives a value from the output of an event trigger). See .input() for a listener that is only triggered by user input.