코딩 에이전트 구축을 위한 완전한 Rust SDK입니다.

Cersei는 프로덕션 코딩 에이전트의 모든 구성 요소 — 도구 실행, LLM 스트리밍, 서브 에이전트 오케스트레이션, 지속 메모리, 스킬, MCP 통합 — 를 컴포저블 라이브러리 함수로 제공합니다. Claude Code 대체 코드를 만들거나, 앱에 에이전트를 삽입하거나, 완전히 새로운 것을 만들 수 있습니다.

MIT 라이선스 | 아딥 모신 제작 | 문서 | GitHub

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왜 세르세이

Cersei

The complete Rust SDK for building coding agents.

Cersei gives you every building block of a production coding agent — tool execution, LLM streaming, sub-agent orchestration, persistent memory, skills, MCP integration — as composable library functions. Build a Claude Code replacement, embed an agent in your app, or create something entirely new.

use cersei::prelude::*;

#[tokio::main]
async fn main() -> anyhow::Result {
    let output = Agent::builder()
        .provider(Anthropic::from_env()?)
        .tools(cersei::tools::coding())
        .permission_policy(AllowAll)
        .run_with("Fix the failing tests in src/")
        .await?;

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

MIT License | Built by Adib Mohsin | Docs | GitHub

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Why Cersei

Cersei is built from the architecture of Claude Code (reverse-engineered Rust port) and designed so that anyone can build a complete, drop-in replacement for Claude Code, OpenCode, or any coding agent — as a library call.

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Abstract — The CLI

Abstract is a complete CLI coding agent built on Cersei. One binary, zero runtime dependencies, graph memory by default.

# Install
cargo install --path crates/abstract-cli

# Use
abstract                           # Interactive REPL
abstract "fix the failing tests"   # Single-shot
abstract --resume                  # Resume last session
abstract --model opus --max        # Opus with max thinking
abstract --no-permissions --json   # CI mode with NDJSON output

Abstract vs Claude Code

All numbers from run_tool_bench.sh --full.