# read_file

Read an uploaded file's contents by name.

Agent View of the PolicyLayer registry record for `read_file`. HTML page: https://policylayer.com/tools/facusada-mcp-btp/read-file

## Facts

- Tool: `read_file`
- Server: Sap Btp Destination (`facusada/mcp-btp`) — https://policylayer.com/tools/facusada-mcp-btp.md
- Homepage: https://github.com/facusada/mcp-btp
- Risk category: Read (Low risk)
- Registry record: grade D, 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": "read_file",
    "arguments": {}
  }
}
```

## Why read_file is rated Low

This tool retrieves file contents without side effects. It is a read-only operation that queries existing data. The severity is low because file reading typically has minimal blast radius unless the files contain highly sensitive data, but the tool itself is non-destructive and non-modifying. The confidence is high because the description is clear and unambiguous.

From the tool's own definition: "Tool name 'read_file' and description 'Read an uploaded file's contents by name' explicitly indicate retrieval of data with no modification or deletion."

## Use case

AI agents call read_file to retrieve information from Sap Btp Destination 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 Sap Btp Destination:

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

## Other tools on Sap Btp Destination (35)

- `call_destination` — Execute — https://policylayer.com/tools/facusada-mcp-btp/call-destination.md
- `run_query` — Execute — https://policylayer.com/tools/facusada-mcp-btp/run-query.md
- `admin_tool` — Other — https://policylayer.com/tools/facusada-mcp-btp/admin-tool.md
- `async_tool` — Other — https://policylayer.com/tools/facusada-mcp-btp/async-tool.md
- `custom_name` — Other — https://policylayer.com/tools/facusada-mcp-btp/custom-name.md
- `flexible_task` — Other — https://policylayer.com/tools/facusada-mcp-btp/flexible-task.md
- `greet` — Other — https://policylayer.com/tools/facusada-mcp-btp/greet.md
- `greeting` — Other — https://policylayer.com/tools/facusada-mcp-btp/greeting.md
- `multiply` — Other — https://policylayer.com/tools/facusada-mcp-btp/multiply.md
- `my_task` — Other — https://policylayer.com/tools/facusada-mcp-btp/my-task.md
- `my_tool` — Other — https://policylayer.com/tools/facusada-mcp-btp/my-tool.md
- `protected_tool` — Other — https://policylayer.com/tools/facusada-mcp-btp/protected-tool.md
- `check_worker_status` — Read — https://policylayer.com/tools/facusada-mcp-btp/check-worker-status.md
- `echo_tool` — Read — https://policylayer.com/tools/facusada-mcp-btp/echo-tool.md
- `get_auth_type` — Read — https://policylayer.com/tools/facusada-mcp-btp/get-auth-type.md
- `get_client_ip` — Read — https://policylayer.com/tools/facusada-mcp-btp/get-client-ip.md
- `get_destination` — Read — https://policylayer.com/tools/facusada-mcp-btp/get-destination.md
- `get_info` — Read — https://policylayer.com/tools/facusada-mcp-btp/get-info.md
- `get_my_emails` — Read — https://policylayer.com/tools/facusada-mcp-btp/get-my-emails.md
- `get_user_id` — Read — https://policylayer.com/tools/facusada-mcp-btp/get-user-id.md
- `healthcheck` — Read — https://policylayer.com/tools/facusada-mcp-btp/healthcheck.md
- `introspect` — Read — https://policylayer.com/tools/facusada-mcp-btp/introspect.md
- `list_files` — Read — https://policylayer.com/tools/facusada-mcp-btp/list-files.md
- `log_progress` — Read — https://policylayer.com/tools/facusada-mcp-btp/log-progress.md
- `long_running_task` — Read — https://policylayer.com/tools/facusada-mcp-btp/long-running-task.md
- `read_write_tool` — Read — https://policylayer.com/tools/facusada-mcp-btp/read-write-tool.md
- `tool_with_context` — Read — https://policylayer.com/tools/facusada-mcp-btp/tool-with-context.md
- `add` — Write — https://policylayer.com/tools/facusada-mcp-btp/add.md
- `add_expense` — Write — https://policylayer.com/tools/facusada-mcp-btp/add-expense.md
- `save` — Write — https://policylayer.com/tools/facusada-mcp-btp/save.md
- …and 5 more: https://policylayer.com/tools/facusada-mcp-btp.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=facusada-mcp-btp · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/facusada-mcp-btp