# add

A write tool on the Cryptosense MCP server.

Agent View of the PolicyLayer registry record for `add`. HTML page: https://policylayer.com/tools/josephibra-cryptosense-mcp/add

## Facts

- Tool: `add`
- Server: Cryptosense (`josephibra/cryptosense-mcp`) — https://policylayer.com/tools/josephibra-cryptosense-mcp.md
- Homepage: https://github.com/josephibra/cryptosense-mcp
- Risk category: Write (Medium risk)
- Registry record: grade D, 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": "add",
    "arguments": {}
  }
}
```

## Why add is rated Medium

The tool name 'add' suggests a Write operation that creates or modifies data reversibly. Without a description, confidence is reduced, but the sibling tools and server purpose (portfolio value tracking) indicate this creates or updates records rather than executing arbitrary code or deleting data. Classified as Write rather than Execute due to the straightforward nature of 'add' operations in financial contexts.

From the tool's own definition: "Tool name 'add' with no description provided. In the context of a crypto/portfolio MCP server with sibling tools like 'add_expense' and portfolio management capabilities, 'add' likely creates or modifies data (e.g., adding to portfolio, expenses, or holdings)."

## Use case

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

## Recommended policy (PolicyLayer)

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

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

## Other tools on Cryptosense (35)

- `run_query` — Execute — https://policylayer.com/tools/josephibra-cryptosense-mcp/run-query.md
- `async_tool` — Other — https://policylayer.com/tools/josephibra-cryptosense-mcp/async-tool.md
- `custom_name` — Other — https://policylayer.com/tools/josephibra-cryptosense-mcp/custom-name.md
- `greeting` — Other — https://policylayer.com/tools/josephibra-cryptosense-mcp/greeting.md
- `log_progress` — Other — https://policylayer.com/tools/josephibra-cryptosense-mcp/log-progress.md
- `multiply` — Other — https://policylayer.com/tools/josephibra-cryptosense-mcp/multiply.md
- `my_task` — Other — https://policylayer.com/tools/josephibra-cryptosense-mcp/my-task.md
- `my_tool` — Other — https://policylayer.com/tools/josephibra-cryptosense-mcp/my-tool.md
- `tool_with_context` — Other — https://policylayer.com/tools/josephibra-cryptosense-mcp/tool-with-context.md
- `check_worker_status` — Read — https://policylayer.com/tools/josephibra-cryptosense-mcp/check-worker-status.md
- `compare` — Read — https://policylayer.com/tools/josephibra-cryptosense-mcp/compare.md
- `echo_tool` — Read — https://policylayer.com/tools/josephibra-cryptosense-mcp/echo-tool.md
- `get_auth_type` — Read — https://policylayer.com/tools/josephibra-cryptosense-mcp/get-auth-type.md
- `get_client_ip` — Read — https://policylayer.com/tools/josephibra-cryptosense-mcp/get-client-ip.md
- `get_info` — Read — https://policylayer.com/tools/josephibra-cryptosense-mcp/get-info.md
- `get_my_emails` — Read — https://policylayer.com/tools/josephibra-cryptosense-mcp/get-my-emails.md
- `get_user_id` — Read — https://policylayer.com/tools/josephibra-cryptosense-mcp/get-user-id.md
- `greet` — Read — https://policylayer.com/tools/josephibra-cryptosense-mcp/greet.md
- `introspect` — Read — https://policylayer.com/tools/josephibra-cryptosense-mcp/introspect.md
- `list_files` — Read — https://policylayer.com/tools/josephibra-cryptosense-mcp/list-files.md
- `long_running_task` — Read — https://policylayer.com/tools/josephibra-cryptosense-mcp/long-running-task.md
- `market_overview` — Read — https://policylayer.com/tools/josephibra-cryptosense-mcp/market-overview.md
- `portfolio_value` — Read — https://policylayer.com/tools/josephibra-cryptosense-mcp/portfolio-value.md
- `price` — Read — https://policylayer.com/tools/josephibra-cryptosense-mcp/price.md
- `read_file` — Read — https://policylayer.com/tools/josephibra-cryptosense-mcp/read-file.md
- `top_coins` — Read — https://policylayer.com/tools/josephibra-cryptosense-mcp/top-coins.md
- `trending` — Read — https://policylayer.com/tools/josephibra-cryptosense-mcp/trending.md
- `add_expense` — Write — https://policylayer.com/tools/josephibra-cryptosense-mcp/add-expense.md
- `create_api_key` — Write — https://policylayer.com/tools/josephibra-cryptosense-mcp/create-api-key.md
- `save` — Write — https://policylayer.com/tools/josephibra-cryptosense-mcp/save.md
- …and 5 more: https://policylayer.com/tools/josephibra-cryptosense-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=josephibra-cryptosense-mcp · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/josephibra-cryptosense-mcp