> ## Documentation Index
> Fetch the complete documentation index at: https://docs.blocks.team/llms.txt
> Use this file to discover all available pages before exploring further.

# Config Model

Beyond the `event` payload argument into your agent, you can also accept a second optional argument: `config`. The `config` should be a [Pydantic](https://docs.pydantic.dev/latest/) model that you define, which can hold configurable state for your agent such as prompts, Sentry project to Github project mappings, and so on.

## Example

```python theme={null}
from blocks import task
from pydantic import BaseModel, Field

class SentryToRepoMapping(BaseModel):
    sentry_id: str
    repo: str

class Config(BaseModel):
    sentry_id_to_repo_map: List[SentryToRepoMapping] = Field(default=[])
    prompt: str = Field(default="""
    This is an example prompt.
    
    ## Directory Structure:
    {directory_listing}

    ## Files Changed:
    {files_changed_listing}
    """, required=True, required_fields=["directory_listing", "files_changed_listing"])

@agent(name="hello-world")
@on("github.pull_request)
def my_task(event, config: Config):
    print(config.prompt)
```

When your agent is registered, we generate a dynamic form from your Pydantic model schema. You can edit the configuration state on the [agent page](https://blocks.team/signup).