# HKUDS/OpenHarness

"OpenHarness: Open Agent Harness with a Built-in Personal Agent--Ohmo!"

Repository: https://github.com/HKUDS/OpenHarness
Canonical: https://ross.abutalabs.com/products/openharness
Language: Python
License: MIT
License Family: permissive
Last push: 2026-06-04T02:42:40+00:00

## Health v2 (maintenance only)
Score: 70/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 85, release rhythm 83, longevity 11
- inputs: {"age_days": 154, "days_push": 90, "days_rel": 118, "gap_med": 8, "n_releases_24m": 4}
- flags: young
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 15546, forks 2531 (observed 2026-08-28T04:11:11.813832+00:00)

## What it is
OpenHarness is a lightweight open-source agent harness in Python providing tool use, skills, memory, and multi-agent coordination, launched via a single 'oh' CLI command. It includes ohmo, a personal AI agent that chats over Feishu/Slack/Telegram/Discord and autonomously writes code, runs tests, and opens PRs using existing Claude Code or Codex subscriptions.

## Use cases
- build a personal AI coding agent that opens PRs autonomously
- run an agent harness with tool use, skills, and memory
- coordinate multiple AI agents from a single CLI
- chat with an AI assistant via Telegram or Discord that works on my repo
- reuse my Claude Code subscription without extra API keys
- add long-session memory and skills to an LLM agent
- integrate CLI agents like Cursor or nanobot into one harness

## When to choose
- you want an open, hackable agent harness with 43+ built-in tools
- you need a personal agent reachable through chat platforms that can code and open PRs
- you want multi-agent coordination and memory without building infrastructure yourself
- you already pay for Claude Code or Codex and want to leverage it

## When to avoid
- you need a simple chatbot with no coding or repo access
- you require a fully managed cloud agent service with no local setup
- you need non-Python agent runtimes or guaranteed enterprise support

## Facets
- artifact type: framework
- maturity: active
- function: agent-framework, cli, chatbot, developer-tools, workflow-automation, mcp
- domain: large-language-models, developer-tools
- platform: python, cli, cross-platform, self-hosted
- tags: agent-harness, personal-agent, multi-agent, tool-use, memory, claude-code, terminal-ui, messaging-integrations, ai-agents, automation, command-line, telegram, discord

## Member repositories
- HKUDS/OpenHarness (main) score 70

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:11:11.813832+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-29T17:05:39.498962+00:00, confidence not recorded.
  - readme: https://github.com/HKUDS/OpenHarness (fetched 2026-08-28T04:11:11.813832+00:00, sha 35a2e0fe9fb3)
- Data as of 2026-08-30T08:39:29.467469+00:00.