Registry of 37 vetted single-file utilities for LLM and agent code (rate limiters that respect Retry-After, JSON repair, response caches, retry with backoff, token counters, PII scrubbers). 4 MCP tools: list_utilities, search_utilities, get_utility_info, install_utility.

{
  "mcpServers": {
    "customclaw": {
      "command": "npx",
      "args": [
        "-y",
        "customclaw-mcp"
      ]
    }
  }
}