[GitHub Trending] strands-agents/harness-sdk

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An open-source SDK for building and controlling production AI agents end-to-end, highly actionable.

AI/ML github.com

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Why It Matters

For a solutions architect building agent orchestration systems, this SDK reduces boilerplate for production-grade agent loops with built-in observability, model portability, and guardrails—critical for scalable multi-agent deployments.

Key Takeaways

Start prototyping with create_harness() to get a fully assembled agent, then customize with the lower-level SDK when you need fine-grained control over the loop and tools.

Build an agent harness and control it end-to-end. Open-source SDK for production AI agents in Python & TypeScript - any model, any cloud. - strands-agents/harness-sdk

Summary

Strands Agents is an open-source SDK offering a model-driven approach to building AI agents in Python and TypeScript, running in your process without a hosted control plane. Its high-level harness provides lifecycle controls (turn limits, token budgets, cancellation), tools, MCP, structured output, memory, sessions, guardrails, tracing, and evals, while the lower-level SDK lets you own the agent loop. Supports Amazon Bedrock, Anthropic, OpenAI, Gemini, and more, with built-in streaming and multi-agent patterns.

Author

strands-agents