@sumeru/sarsapa — Native in-process worker agent (芥子)

What it does

Sarsapa (芥子) is Sumeru's lightweight native agent — a single-session, in-process ReAct loop with built-in tools (shell, read, write, grep). Unlike CLI adapters, it calls LLM APIs directly via fetch instead of spawning an external agent binary.

Implements AdapterImpl and the same NDJSON protocol, but runs as a pure Node.js worker. Manifest: providerMode: "custom-only" — requires a configured Sumeru Provider and Model.

API / Exports

• createSarsapaAdapter(options?) — returns AdapterImpl
• manifest — AdapterManifest (name: "sarsapa")
• Types: SarsapaOptions, Tool, ToolContext, ToolResult, LlmMessage, …

Binary: sumeru-sarsapa.

Usage example

sumeru-sarsapa

import { createSarsapaAdapter } from "@sumeru/sarsapa";

const adapter = createSarsapaAdapter({ maxIterations: 20 });

Docker image tag: sumeru/sarsapa:dev. Version 0.3.0.