# list_data_files

List the refreshable data files (uploaded via upload_data) for a Deloc app, with sizes and last-updated time. Use this to check what data files exist and when they were last refreshed.

Agent View of the PolicyLayer registry record for `list_data_files`. HTML page: https://policylayer.com/tools/deloc-mcp/list-data-files

## Facts

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

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

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

## Why list_data_files is rated Low

This tool retrieves metadata about existing data files (names, sizes, timestamps) but performs no modifications, deletions, or execution. It is a straightforward read operation with minimal blast radius if misused by an AI agent.

From the tool's own definition: "Tool description explicitly states it 'list[s]' data files and is used to 'check what data files exist' — pure query/inspection without side effects."

## Use case

AI agents call list_data_files to retrieve information from Deloc without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

## Recommended policy (PolicyLayer)

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

```json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "list_data_files": {}
  }
}
```

## 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_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
- `connect_bigquery` — Write — https://policylayer.com/tools/deloc-mcp/connect-bigquery.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`

---

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