The original title is: "A resumable, human-in-the-loop AI agent in ~200 lines with zero dependencies"

Short summary

yieldagent is a zero-dependency AI agent library in ~200 lines that implements the core agent loop as an async generator, enabling observable step-by-step execution. It supports human-in-the-loop approval via a pause/resume mechanism where state is serializable data, provider-agnostic model calls, streaming, Zod tool validation, and AbortSignal cancellation. The library targets developers who want minimal control without the overhead of large frameworks.

• •Async generator-based agent loop with zero dependencies and ~200 lines of code
• •Human-in-the-loop approval via serializable pause/resume state
• •Provider-agnostic with OpenAI-compatible adapter, streaming, Zod validation, and cancellation support

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