This record as markdown: /tools/io-github-portel-dev-ncp/search-memories.md
What search_memories does on Ncp
AI agents call search_memories to retrieve information from Ncp without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Why search_memories is rated Low
This tool retrieves or queries data (memories) without side effects, side-effects, or irreversible actions. It matches the 'Read' category as it performs a search operation that returns information without altering state.
From the tool's definition Tool name 'search_memories' and description 'Search through stored memories' indicate a query/retrieval operation with no modification, deletion, or execution capability.
Attacks that exploit this kind of access
The rule that runs search_memories safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Ncp, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For search_memories, this is the rule to start with:
search_memories 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 Ncp, apply this rule, and every search_memories call is checked against it from then on.
Questions about search_memories
Search through stored memories. It is categorised as a Read tool in the Ncp MCP Server, which means it retrieves data without modifying state.
Register the Ncp MCP server in PolicyLayer and add a rule for search_memories: 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 Ncp. Nothing to install.
search_memories 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 search_memories 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 search_memories. 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.
search_memories is provided by the Ncp MCP server (@portel/ncp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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