ACR — Agent Composition Records

Overview

ACR — Agent Composition Records is a Model Context Protocol server that functions as an interaction profile registry for AI agents. It lets you log agent interactions and query behavioral lenses to understand how your agents perform and interact over time. Any MCP-compatible AI assistant can call ACR's tools directly, and the model decides when to use them during conversation or agent runs.

The server runs locally via the npm package @tethral/acr-mcp, which communicates over stdio on your machine. No authentication is required — install with npx -y @tethral/acr-mcp and it works immediately. Version v2.14.0 is available now under the MIT license, with full source code at Tethral-Inc/AgentRegistry on GitHub.

ACR — Agent Composition Records appears in the AI & Agents category on mcp.site and is compatible with MCP clients including Claude Desktop, Claude Code, Cursor, VS Code, Windsurf, Zed, and others. If you maintain this server for Tethral-Inc, claim the listing to verify ownership and keep the information up to date.

Installation

// claude_desktop_config.json
{
  "mcpServers": {
    "acr_agent_composition_records": {
      "command": "npx",
      "args": [
        "-y",
        "@tethral/acr-mcp"
      ]
    }
  }
}