Search patterns using REAL vector search (HNSW when available, brute-force fallback) Use when native Bash hooks (via Claude Code\
AI agents call hooks_intelligence_pattern-search to retrieve information from Claude Flow without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The tool's core function is searching and retrieving pattern data using vector search algorithms. While classified as Read, the medium severity reflects that vector search results could potentially inform downstream decision-making in an agent orchestration context.
From the tool's definition Tool performs 'Search patterns using REAL vector search (HNSW when available, brute-force fallback)' - primarily a search/query operation that retrieves data without modification.
Attacks that exploit this kind of access
Search patterns using REAL vector search (HNSW when available, brute-force fallback) Use when native Bash hooks (via Claude Code\. It is categorised as a Read tool in the Claude Flow MCP Server, which means it retrieves data without modifying state.
Register the Claude Flow MCP server in PolicyLayer and add a rule for hooks_intelligence_pattern-search: 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 Claude Flow. Nothing to install.
hooks_intelligence_pattern-search 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 hooks_intelligence_pattern-search 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 hooks_intelligence_pattern-search. 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.
hooks_intelligence_pattern-search is provided by the Claude Flow MCP server (claude-flow). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.