# agent-second-brain vs DeepSeek Harness

> Two self-hosted projects, compared on the numbers selfhost.directory tracks live: score, popularity, release cadence and setup effort.

| | agent-second-brain | DeepSeek Harness |
|---|---|---|
| Score | 50/100 | 87/100 ✓ |
| Rank in category | #40 of 120 in AI Assistant | #3 of 209 in AI Agents |
| GitHub stars | 411 | 264 775 ✓ |
| Stars, last 30 days | — | +8 783 |
| Stable releases, 12 months | 6 ✓ | 0 |
| Latest release | v3.0.3 · 20 Jun 2026 | — |
| Setup | Advanced | Moderate ✓ |
| Official Docker image | No | No |
| License | MIT | MIT |
| Main language | Python | Typescript |

## Which one should you pick?

DeepSeek Harness scores 87/100 against 50/100 for agent-second-brain, so it is the safer default.

agent-second-brain ships more often: 6 stable releases in the past year, against 0 for DeepSeek Harness.

If you want the quickest setup, DeepSeek Harness is easier to run; agent-second-brain needs more configuration.

DeepSeek Harness is growing faster right now (+8 783 stars in 30 days).

## Details

- [agent-second-brain](https://selfhost.directory/project/agent-second-brain) (markdown: https://selfhost.directory/project/agent-second-brain.md)
- [DeepSeek Harness](https://selfhost.directory/project/deepseek-harness) (markdown: https://selfhost.directory/project/deepseek-harness.md)

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Source: https://selfhost.directory/compare/agent-second-brain-vs-deepseek-harness