strands-agents/harness-sdk

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

About the project

Strands Agents is an open-source SDK for building and running AI agents in Python and TypeScript. Developers use it to create agents with model providers, tools, lifecycle controls, memory, sessions, streaming, tracing, and evaluations, and the catalogue includes add-ons for its agent-building workflow.

Latest release harness-cli/v0.2.3 · 29 Oct 2026

13 files for Claude Code, Codex and OpenCode: docs-audit, docs-planner, docs-reviewer, docs-writer and 9 more — 3,106 tokens loaded in every session.

Open on GitHub strandsagents.com

Instructions

harness-sdk AGENTS.md AGENTS.md A 3,101 tok
harness-sdk CLAUDE.md CLAUDE.md A 5 tok

Skills

docs-audit .agents/skills/docs-audit/SKILL.md A 79 tok
docs-planner .agents/skills/docs-planner/SKILL.md A 73 tok
docs-reviewer .agents/skills/docs-reviewer/SKILL.md A 68 tok
docs-writer .agents/skills/docs-writer/SKILL.md A 74 tok
pr-create .agents/skills/pr-create/SKILL.md A 32 tok
pr-feedback .agents/skills/pr-feedback/SKILL.md A 44 tok
pr-writer .agents/skills/pr-writer/SKILL.md A 39 tok
pre-push .agents/skills/pre-push/SKILL.md A 85 tok
strands-review .agents/skills/strands-review/SKILL.md A 125 tok
docs-diagrams .agents/skills/docs-diagrams/SKILL.md A 70 tok
docs-verifier .agents/skills/docs-verifier/SKILL.md C 53 tok

These files are strands-agents/harness-sdk's own configuration — they tell Claude Code, Codex and OpenCode how to work on this repository, so they are not mods to install elsewhere. Copy one as a starting point and replace the parts that are about this project.