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harness-sdk

AI Agents & Assistants

An SDK that provides a model‑driven approach to building AI agents with Python or TypeScript in just a few lines of code.

Track releases GitHub Website
Python Latest typescript/v1.11.1 · 2d ago Security brief →

Features

  • Model‑agnostic: supports Amazon Bedrock, Anthropic, OpenAI, Gemini and custom providers
  • Built‑in observability with tracing hooks for every agent decision
  • Guardrails to catch mistakes before execution
  • Steering handlers that let agents self‑correct instead of failing silently
  • Includes MCP, streaming, multi‑agent patterns and structured output

Recent releases

View all 70 releases →
No immediate action
typescript/v1.11.1 New feature

python MCP cancellation, Storage features, session fix, CI updates

Open
Review required
python/v1.50.0 Breaking risk
RCE / SSRF

vended-tools, middleware, site, fixes, docs

Open
Review required
typescript/v1.11.0 Breaking risk
RCE / SSRF

Tools, Fixes, Docs

Open
Review required
typescript/v1.10.0 Mixed
Auth

Governance kit, unified storage, docs, fixes

Open
Review required
python/v1.48.0 New feature
Auth

Unified Storage + Intervention Kit + Site Improvements

Open

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About

Stars
6,632
Forks
969
Languages
Python TypeScript MDX
Downloads/week
213,699 ↑169%
NPM Maintainers
4
Contributors
100
TypeScript
Types included ✓
View on GitHub View on npm Homepage Documentation

Install & Platforms

Install via
pip npm

Community & Support

Discord

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Beta — feedback welcome: [email protected]