This record as markdown: /tools/io-github-devopam-mcpg/vector-recall-at-k.md
What vector_recall_at_k does on Mcpg
AI agents call vector_recall_at_k to retrieve information from Mcpg without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Why vector_recall_at_k is rated Low
The tool appears to measure or query recall performance at k results for vector operations, consistent with the analytical tools in the sibling set. No description is provided, which lowers confidence slightly, but the naming pattern and context strongly suggest this is a read-only metric retrieval operation rather than modification, execution, or destructive action.
From the tool's definition Tool name 'vector_recall_at_k' suggests metric analysis for vector search results; sibling tools like 'analyze_distance_metric', 'analyze_hnsw_recall', and 'analyze_rerank_ndcg' are all analytic/measurement operations with no data modification implied.
Attacks that exploit this kind of access
The rule that runs vector_recall_at_k safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Mcpg, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For vector_recall_at_k, this is the rule to start with:
vector_recall_at_k 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 Mcpg, apply this rule, and every vector_recall_at_k call is checked against it from then on.
Questions about vector_recall_at_k
vector_recall_at_k is a read tool on the Mcpg MCP server. It is categorised as a Read tool in the Mcpg MCP Server, which means it retrieves data without modifying state.
Register the Mcpg MCP server in PolicyLayer and add a rule for vector_recall_at_k: 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 Mcpg. Nothing to install.
vector_recall_at_k 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 vector_recall_at_k 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 vector_recall_at_k. 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.
vector_recall_at_k is provided by the Mcpg MCP server (pypi:mcpg). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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