# connect_bigquery

Connect the user

Agent View of the PolicyLayer registry record for `connect_bigquery`. HTML page: https://policylayer.com/tools/deloc-mcp/connect-bigquery

## Facts

- Tool: `connect_bigquery`
- Server: Deloc (`delocdev/deloc-mcp`) — https://policylayer.com/tools/deloc-mcp.md
- Homepage: https://github.com/delocdev/deloc-mcp
- Risk category: Write (Medium risk)
- Registry record: grade F, identity unverified
- Server rate-limited: no
- Parameters: 0
- Recommended policy verdict: Rate-limited

## Example call (MCP tools/call, JSON-RPC 2.0)

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "connect_bigquery",
    "arguments": {}
  }
}
```

## Why connect_bigquery is rated Medium

Connecting a user to BigQuery involves creating an authentication session or credential, which modifies the user's configuration state. This is a write operation because it creates or establishes a new resource (a connection). It is not destructive because the connection can be disconnected or revoked. It is not execute because it doesn't run queries or arbitrary code.

From the tool's own definition: "The tool name is 'connect_bigquery' and the description states 'Connect the user'. Combined with sibling tools like 'create_oauth_credential', this tool creates or establishes a new connection/authentication credential to BigQuery, which is a reversible write…"

## Use case

AI agents use connect_bigquery to create or update resources in Deloc, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Deloc environment.

## Recommended policy (PolicyLayer)

Verdict: **Rate-limited**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches Deloc:

```json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "connect_bigquery": {
      "limits": [
        {
          "counter": "connect_bigquery_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}
```

## Other tools on Deloc (44)

- `delete_action` — Destructive — https://policylayer.com/tools/deloc-mcp/delete-action.md
- `delete_action_secret` — Destructive — https://policylayer.com/tools/deloc-mcp/delete-action-secret.md
- `delete_app` — Destructive — https://policylayer.com/tools/deloc-mcp/delete-app.md
- `delete_dashboard_query` — Destructive — https://policylayer.com/tools/deloc-mcp/delete-dashboard-query.md
- `delete_data_connection` — Destructive — https://policylayer.com/tools/deloc-mcp/delete-data-connection.md
- `delete_oauth_credential` — Destructive — https://policylayer.com/tools/deloc-mcp/delete-oauth-credential.md
- `disable_app` — Destructive — https://policylayer.com/tools/deloc-mcp/disable-app.md
- `logout` — Destructive — https://policylayer.com/tools/deloc-mcp/logout.md
- `deploy` — Execute — https://policylayer.com/tools/deloc-mcp/deploy.md
- `run_dashboard_query` — Execute — https://policylayer.com/tools/deloc-mcp/run-dashboard-query.md
- `test_action` — Execute — https://policylayer.com/tools/deloc-mcp/test-action.md
- `test_oauth_credential` — Execute — https://policylayer.com/tools/deloc-mcp/test-oauth-credential.md
- `bigquery_get_table_schema` — Read — https://policylayer.com/tools/deloc-mcp/bigquery-get-table-schema.md
- `bigquery_list_datasets` — Read — https://policylayer.com/tools/deloc-mcp/bigquery-list-datasets.md
- `bigquery_list_projects` — Read — https://policylayer.com/tools/deloc-mcp/bigquery-list-projects.md
- `bigquery_list_tables` — Read — https://policylayer.com/tools/deloc-mcp/bigquery-list-tables.md
- `check_bigquery_connection` — Read — https://policylayer.com/tools/deloc-mcp/check-bigquery-connection.md
- `get_account` — Read — https://policylayer.com/tools/deloc-mcp/get-account.md
- `get_action_logs` — Read — https://policylayer.com/tools/deloc-mcp/get-action-logs.md
- `get_app` — Read — https://policylayer.com/tools/deloc-mcp/get-app.md
- `list_action_secrets` — Read — https://policylayer.com/tools/deloc-mcp/list-action-secrets.md
- `list_actions` — Read — https://policylayer.com/tools/deloc-mcp/list-actions.md
- `list_apps` — Read — https://policylayer.com/tools/deloc-mcp/list-apps.md
- `list_dashboard_queries` — Read — https://policylayer.com/tools/deloc-mcp/list-dashboard-queries.md
- `list_data_connections` — Read — https://policylayer.com/tools/deloc-mcp/list-data-connections.md
- `list_data_files` — Read — https://policylayer.com/tools/deloc-mcp/list-data-files.md
- `list_oauth_credentials` — Read — https://policylayer.com/tools/deloc-mcp/list-oauth-credentials.md
- `suggest_deploy_options` — Read — https://policylayer.com/tools/deloc-mcp/suggest-deploy-options.md
- `create_action` — Write — https://policylayer.com/tools/deloc-mcp/create-action.md
- `create_dashboard_query` — Write — https://policylayer.com/tools/deloc-mcp/create-dashboard-query.md
- …and 14 more: https://policylayer.com/tools/deloc-mcp.md

## For agents

This record is a snapshot. Live verdicts and the full registry:

- Check every server in your MCP config at once: `npx -y policylayer stack`
- Vet a server before you add it: install the mcp-precheck skill — `npx skills add https://policylayer.com` (skill text: https://policylayer.com/skill.md)
- Query the registry over MCP: endpoint `https://api.policylayer.com/mcp` — tools `check_mcp_server`, `check_mcp_stack`, `check_tool`, `search_registry`, `get_change_events`

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Source: the PolicyLayer MCP registry — one continuously verified record per MCP server. Full record: https://policylayer.com/registry?q=deloc-mcp · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/deloc-mcp