# safe_lookup

A read tool on the ChukMCPServer MCP server.

Agent View of the PolicyLayer registry record for `safe_lookup`. HTML page: https://policylayer.com/tools/ibm-chuk-mcp-server/safe-lookup

## Facts

- Tool: `safe_lookup`
- Server: ChukMCPServer (`ibm/chuk-mcp-server`) — https://policylayer.com/tools/ibm-chuk-mcp-server.md
- Homepage: https://github.com/IBM/chuk-mcp-server
- Risk category: Read (Low risk)
- Registry record: grade B, 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": "safe_lookup",
    "arguments": {}
  }
}
```

## Why safe_lookup is rated Low

The name 'safe_lookup' strongly implies a retrieval or query operation without side effects. The 'safe' prefix further suggests it is designed to be non-destructive. Without a description, confidence is moderate, but the naming convention and context among sibling tools (echo, hello, get_env) which are all Read operations supports this classification as a Read tool with low severity.

From the tool's own definition: "Tool name 'safe_lookup' suggests a read-only lookup operation with a 'safe' qualifier indicating no destructive intent. No description provided to confirm behavior."

## Use case

AI agents call safe_lookup to retrieve information from ChukMCPServer 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 ChukMCPServer:

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

## Other tools on ChukMCPServer (12)

- `multiply` — Execute — https://policylayer.com/tools/ibm-chuk-mcp-server/multiply.md
- `add` — Other — https://policylayer.com/tools/ibm-chuk-mcp-server/add.md
- `advanced_tool` — Other — https://policylayer.com/tools/ibm-chuk-mcp-server/advanced-tool.md
- `bench_add` — Other — https://policylayer.com/tools/ibm-chuk-mcp-server/bench-add.md
- `bench_echo` — Other — https://policylayer.com/tools/ibm-chuk-mcp-server/bench-echo.md
- `echo` — Other — https://policylayer.com/tools/ibm-chuk-mcp-server/echo.md
- `hello` — Other — https://policylayer.com/tools/ibm-chuk-mcp-server/hello.md
- `hello_azure` — Other — https://policylayer.com/tools/ibm-chuk-mcp-server/hello-azure.md
- `hello_gcf` — Other — https://policylayer.com/tools/ibm-chuk-mcp-server/hello-gcf.md
- `hello_lambda` — Other — https://policylayer.com/tools/ibm-chuk-mcp-server/hello-lambda.md
- `universal_tool` — Other — https://policylayer.com/tools/ibm-chuk-mcp-server/universal-tool.md
- `get_env` — Read — https://policylayer.com/tools/ibm-chuk-mcp-server/get-env.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=ibm-chuk-mcp-server · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/ibm-chuk-mcp-server