> ## Documentation Index
> Fetch the complete documentation index at: https://aci.dev/docs/llms.txt
> Use this file to discover all available pages before exploring further.
# Agent
> An Agent is a logical actor within a project that accesses the platform
* Represents a specific context or purpose for accessing the platform
* Has its own API key for authentication
* Can be restricted to use only specific `Apps` (select from the list of `Configured Apps`) within the `Project`
* Can have `Custom Instructions` for how to (and how not to) use `Functions`
* Allows for a natural multi-agent architecture within a single `Project`
Agents are designed to support multi-agent systems. Each agent can have its own set of allowed `Apps` and `Custom Instructions`, enabling specialized behaviors. For simple use cases, you can use the default agent created for your `Project`.
## Agent Level Access Control
For each `App` you configured, you can specify if you want to allow the agent to access that `App`.
## Custom Instructions
You can specify a `Custom Instruction` per `Function` for the `Agents` to follow. e.g.,:
* `GMAIL__SEND_EMAIL`: "Don't send emails to people outside my organization"
* `BRAVE_SEARCH__WEB_SEARCH`: "Only allowed to search the web for the following topics: \[...]"
* `GITHUB__STAR_REPOSITORY`: "Don't star repositories that are not related to AI"
