Source: https://seerepo.com/compare/deepseek-ai/deepseek-harness/vs/thedotmack/claude-mem
Markdown source: https://seerepo.com/compare/deepseek-ai/deepseek-harness/vs/thedotmack/claude-mem.md
Description: deepseek-harness and claude-mem share 4 technologies: React, Vite, MCP, and Anthropic. Both are written in TypeScript. Side by side: stack, size, who writes it, activity and tests.

# deepseek-harness vs claude-mem

deepseek-harness and claude-mem share 4 technologies: React, Vite, MCP, and Anthropic. Both are written in TypeScript.

- [deepseek-ai/deepseek-harness](https://seerepo.com/r/deepseek-ai/deepseek-harness/built): DeepSeek Harness: Everything is a Plugin.
- [thedotmack/claude-mem](https://seerepo.com/r/thedotmack/claude-mem/built): Persistent Context Across Sessions for Every Agent –  Captures everything your agent does during sessions, compresses it with AI, and injects relevant context back into future sessions. Works with Claude Code, OpenClaw, Codex, Gemini, Hermes, Copilot, OpenCode + More

## Side by side

| | deepseek-harness | claude-mem |
|---|---|---|
| Stack | TypeScript: React, Vite, MCP, GitHub, Anthropic | TypeScript: React, Vite, Postgres, MCP, Anthropic, PostHog |
| Size | 1,377,558 lines written, 2,802 code files | 475,490 lines written, 729 code files |
| Who writes it | 12.9% of its commits signed by AI. With Codex and Claude Code | 61.1% of its commits signed by AI. With Claude Code, Cursor, GitHub Copilot, Codex, and CodeRabbit |
| Activity | Last push October 23, 2026, 14,875 commits, 262,598 stars | Last push October 26, 2026, 3,396 commits, 103,531 stars |
| Tests | 3,030 test files. 70.4% of its code files have a test that imports them | 1,198 test files. 70.8% of its code files have a test that imports them |

## What they share and what sets them apart

- In common: React, Vite, MCP, Anthropic
- Only in deepseek-harness: GitHub
- Only in claude-mem: Postgres, PostHog

## Sources

- deepseek-ai/deepseek-harness: Read on October 27, 2026, at commit 22ddee3 (https://github.com/deepseek-ai/deepseek-harness/tree/22ddee3792402c3e70ec5f86a63c3e3e895a2f60)
- thedotmack/claude-mem: Read on October 27, 2026, at commit 35f2ec0 (https://github.com/thedotmack/claude-mem/tree/35f2ec0eb5b2b1e745564db4ce1ecec58eb331e7)