harness9vsWizard
Generated from the two spec rows. Green marks the better value where a spec has a clear direction. Everything else is just different.
harness9
ZhangShenao · Agent harness
OSS
Panel
5.73 spec wins
- Reliability
- 5.5
- Usefulness
- 5.3
- Cost
- 7.2
- Longevity
- 4.7
“It positions itself between bloated frameworks and thin demos, which is the software equivalent of a dating profile that says normal.”
Wizard
teddytennant · Agent harness
OSS
Panel
5.71 spec wins
- Reliability
- 5.0
- Usefulness
- 5.5
- Cost
- 7.3
- Longevity
- 4.8
“It calls itself a sovereign agent, which is a great deal of constitutional language for a binary living in your home directory.”
Spec by spec
| Spec | harness9 | Wizard |
|---|---|---|
| Architecture | ||
| Category | Agent harness | Agent harness |
| Runs | local | local |
| Platforms | macos, linux | macos, linux |
| Context window | not documented | not documented |
| Protocols | ||
| MCP client | No | No |
| MCP server | No | No |
| Capabilities | ||
| Runs terminal commands | Yes | Yes |
| Multi-file edits | Yes | Yes |
| Git operations | Yes | No |
| Browser control | No | No |
| Sandboxed execution | Yes | No |
| Multi-agent orchestration | No | No |
| Headless / CI mode | No | No |
| Models | ||
| Backbone | OpenAI, Anthropic, OpenRouter | xAI, OpenAI, Anthropic, Gemini, DeepSeek, Groq, OpenRouter, llama.cpp |
| Bring your own model | Yes | Yes |
| Local models | No | Yes |
| Cost | ||
| Pricing model | byok | byok |
| Starts at | $0/mo | $0/mo |
| Free tier | Yes | Yes |
| Bring your own key | Yes | Yes |
| Openness | ||
| Open source | Yes | Yes |
| License | MIT | Apache-2.0 |
| GitHub stars | 141 | 105 |
Which one would each critic pick
| Critic | harness9 | Wizard | Pick |
|---|---|---|---|
| El Juez | — | — | not enough reviews |
| El Amigo | 6.3 | 6.0 | harness9 — Pick it if a comfortable full-screen terminal interface is what keeps you using a tool; pick something plainer if you live in a pipe and never look at it. |
| El Crítico | 5.8 | 4.8 | harness9 — Tools run inside a container, but the shell escape prefix and the stored state do not, so the isolation covers the tidy half of what an agent does. |
| El Profesor | 5.5 | 6.3 | Wizard — Memory is stored as markdown and sessions as line-delimited records, which makes the accumulated context a document a person can read and correct. |
| La Inversora | 4.5 | 5.0 | Wizard — 110 public mentions in a year against 66 stars, which is the widest gap between conversation and code on this board, and there is no company at all. |
| La Jefa | 5.5 | 4.0 | harness9 — Every plan, tool result and record stays on the developer's own machine, which answers the data residency question and creates the discovery problem. |
| El Hacker | 6.5 | 8.0 | Wizard — Apache-2.0, and choosing Local on first run has it size a Qwen 3 build to my hardware and start llama.cpp itself, with no key and no account anywhere. |
Picks are derived from each critic's own scores. Humans vote on matchups on the duels page.