Crate cersei 

Cersei

A modular Rust SDK for building coding agents programmatically.

Cersei provides a high-level Agent builder that combines LLM providers, tools, memory, permissions, and hooks into a complete agentic system. Every component is modular and replaceable.

Quick Start

use cersei::prelude::*;

let output = Agent::builder()
    .provider(Anthropic::from_env()?)
    .tools(cersei::tools::coding())
    .run_with("Fix the failing tests")
    .await?;

println!("{}", output.text());

Re-exports

pub use cersei_hooks as hooks;

pub use cersei_mcp as mcp;

pub use cersei_memory as memory;

pub use cersei_provider as provider;

pub use cersei_tools as tools;

pub use cersei_types as types;

pub use cersei_vms as vms;

Modules

events

Agent events: the full event enum, AgentStream, and control messages.

prelude

The prelude — import this for the most common types.

reporters

Built-in reporters for structured event consumption.

Structs

Agent

AgentBuilder

AgentOutput

AgentStream

Returned by agent.run_stream(). Provides async iteration over events and bidirectional control (permissions, cancellation, message injection).

Anthropic

OpenAi

Enums

AgentEvent

CompactReason

WarningState

Traits

Reporter