pattern_search

Search patterns (HNSW)

SERVERRuflo SOURCEruvnet/ruflo

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/ruflo/pattern-search.md

WHAT IT DOES

What pattern_search does on Ruflo

AI agents call pattern_search to retrieve information from Ruflo without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

RISK

Why pattern_search is rated Low

This tool queries a vector database or pattern index to find similar patterns. It retrieves information but does not create, modify, delete, or execute external operations. The confidence is high because the description clearly indicates a search operation on a well-known retrieval algorithm (HNSW), which by design performs read-only operations.

From the tool's definition Tool named 'pattern_search' with description 'Search patterns (HNSW)' — HNSW is a hierarchical navigable small world vector search algorithm.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs pattern_search safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Ruflo, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For pattern_search, this is the rule to start with:

pattern_search Allowed

pattern_search is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "pattern_search": {}
  }
}

ALLOW ONLY THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Ruflo, apply this rule, and every pattern_search call is checked against it from then on.

FAQ

Questions about pattern_search

What does the pattern_search tool do? +

Search patterns (HNSW). It is categorised as a Read tool in the Ruflo MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on pattern_search? +

Register the Ruflo MCP server in PolicyLayer and add a rule for 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 Ruflo. Nothing to install.

What risk level is pattern_search? +

pattern_search is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit pattern_search? +

Yes. Add a rate_limit block to the 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.

How do I block pattern_search completely? +

Set action: deny in the PolicyLayer policy for 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.

What MCP server provides pattern_search? +

pattern_search is provided by the Ruflo MCP server (ruvnet/ruflo). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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