# Deja Vu (MCP server)

> Deja Vu is an MCP server that adds developer tools to AI assistants such as Claude Desktop, Claude Code and Cursor. deja-vu: local memory over the session histories of thirty-eight coding agents. It has 1,139 GitHub stars, is released under the MIT license and runs locally with npx -y @vshulcz/deja-vu.

Your coding agents stop re-debugging what you already fixed. Claude Code, Codex, Cursor and 35 more agents already save every session to disk. deja indexes all of it, months back, and hands the part that matters to whichever agent is working now.

## Key facts

| Fact | Value |
|---|---|
| Repository | https://github.com/vshulcz/deja-vu |
| GitHub stars | 1,139 |
| License | MIT |
| Language | Go |
| Transport | stdio |
| Packages | npm: @vshulcz/deja-vu |
| Remote URL | none |
| Needs API key | no |
| Official | no |
| Works with | Claude Desktop, Claude Code, Cursor, VS Code |
| Category | Developer tools |
| Latest release | v0.21.7 (Oct 6, 2026) |
| Last commit | Oct 6, 2026 |
| MCP registry name | io.github.vshulcz/deja-vu |

## Install

### Claude Desktop (claude_desktop_config.json)

```json
{
  "mcpServers": {
    "deja-vu": {
      "command": "npx",
      "args": [
        "-y",
        "@vshulcz/deja-vu"
      ]
    }
  }
}
```

Settings > Developer > Edit Config. macOS: ~/Library/Application Support/Claude/, Windows: %APPDATA%\Claude\. Restart Claude Desktop afterwards.

### Claude Code

```sh
claude mcp add --transport stdio deja-vu -- npx -y @vshulcz/deja-vu
```

### Cursor (.cursor/mcp.json)

```json
{
  "mcpServers": {
    "deja-vu": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@vshulcz/deja-vu"
      ]
    }
  }
}
```

Project file; use ~/.cursor/mcp.json to enable it in every project.

### VS Code (.vscode/mcp.json)

```json
{
  "servers": {
    "deja-vu": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@vshulcz/deja-vu"
      ]
    }
  }
}
```

Config formats checked against the official docs on 2026-10-07.

## Tools

- `deja`: mode, q, harness?, project?, limit?
- `recall`: the question, or an exact error string, name or flag
- `context`: the same as recall
- `blame`: a file path
- `orient`: nothing — it asks about the project
- `remember`: one durable fact or decision
- `handoff`: a session id or harness name; empty for the newest session here

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