# Mash Multi Agent Software Harness

> MASH (Multi-Agent Software Harness) is a structured development framework for Claude Code that manages the full software lifecycle — from idea to tested, committed code. It orchestrates four specialized AI personas (Init, Plan, Dev, QA) that work in sequence with strict boundaries: planning personas interact with you to capture intent, while implementation personas run as isolated sub-agents that write code and tests autonomously. Features are tracked through a clear lifecycle (CREATED → DEVR

## Facts
- Page: https://tashan.sh/capability/plugin-dmarchevsky-mash-mash-multi-agent-software-harness
- tashan id: plugin:dmarchevsky/mash/mash-multi-agent-software-harness
- Source: https://github.com/dmarchevsky/mash
- Type: plugin
- Category: devtools
- tashan score: 29.0 / 100
- Adoption: 13.0
- Upkeep: 49.0
- Freshness: 66.0
- Evidence coverage: 84% of the inputs this score can use
- Health: active
- Instruction depth: not yet graded
- GitHub stars: 2
- Official: no

## Install

```sh
/plugin marketplace add anthropics/claude-plugins-community
/plugin install mash-multi-agent-software-harness@claude-community
```

## Security audit
Not scanned. We audit npm-published capabilities; this one has no npm package we can resolve, or has not reached the queue. This is not a clean bill of health.

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Measured 2026-09-13 by tashan (https://tashan.sh) from public evidence. Scorer s5.