Redacted excerpt; full evidence withheld.

$ cd <host-path> && ls -la && cat README.md | head -200
exit: 0
SE_URL` to that URL. A key from a custom instance fails with `401 Unauthorized` against the standard host. The installer asks for this; for manual config:

```json
"env": {
  "DIMENSIONS_API_KEY": "your-api-key",
  "DIMENSIONS_BASE_URL": "https://your-instance.dimensions.ai"
}
```

When done, **restart your AI app** and look for **dimensions** in MCP settings. Guided prefix installs update themselves for same-major npm releases; other install methods log an upgrade warning. Details: **[Updating](./docs/INSTALLATION.md#updating)**.
[excerpt truncated]