witness

local MCP server

Installation

Terminal

claude mcp add witness -- npx -y @witness-ai/opencode

Run in your project folder. Add --scope user to use it everywhere.

Add to claude_desktop_config.json or .cursor/mcp.json.

{
  "mcpServers": {
    "witness": {
      "command": "npx",
      "args": [
        "-y",
        "@witness-ai/opencode"
      ]
    }
  }
}

Distills your sessions or any text corpus into a dated history of how its subject changed.

witness is a local MCP server distributed as the npm package @witness-ai/opencode.

Run: claude mcp add witness -- npx -y @witness-ai/opencode

Run: codex mcp add witness -- npx -y @witness-ai/opencode

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