This record as markdown: /tools/ibm-chuk-mcp-server/safe-lookup.md
What safe_lookup does on ChukMCPServer
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.
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 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.
Attacks that exploit this kind of access
The rule that runs safe_lookup safely
PolicyLayer is an MCP gateway: it sits between your AI agents and ChukMCPServer, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For safe_lookup, this is the rule to start with:
safe_lookup is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect ChukMCPServer, apply this rule, and every safe_lookup call is checked against it from then on.
Questions about safe_lookup
safe_lookup is a read tool on the ChukMCPServer MCP server. It is categorised as a Read tool in the ChukMCPServer MCP Server, which means it retrieves data without modifying state.
Register the ChukMCPServer MCP server in PolicyLayer and add a rule for safe_lookup: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches ChukMCPServer. Nothing to install.
safe_lookup is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the safe_lookup rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for safe_lookup. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
safe_lookup is provided by the ChukMCPServer MCP server (ibm/chuk-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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