gt_wasm_match_pattern

Find similar formulas or beads using HNSW pattern matching (150x-12500x faster)

SERVERClaude Flow SOURCEclaude-flow

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/io-github-ruvnet-claude-flow/gt-wasm-match-pattern.md

WHAT IT DOES

What gt_wasm_match_pattern does on Claude Flow

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

RISK

Why gt_wasm_match_pattern is rated Low

This is a query and search operation that retrieves or identifies similar items from an existing dataset. There is no indication of data modification, code execution, or irreversible changes. The performance characteristics mentioned (150x-12500x faster) refer to algorithmic efficiency, not capability escalation.

From the tool's definition The tool description indicates it 'Find[s] similar formulas or beads' using pattern matching. The verb 'find' is a retrieval operation with no modification, deletion, or execution of code.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs gt_wasm_match_pattern safely

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

gt_wasm_match_pattern Allowed

gt_wasm_match_pattern 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": {
    "gt_wasm_match_pattern": {}
  }
}

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

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

FAQ

Questions about gt_wasm_match_pattern

What does the gt_wasm_match_pattern tool do? +

Find similar formulas or beads using HNSW pattern matching (150x-12500x faster). It is categorised as a Read tool in the Claude Flow MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on gt_wasm_match_pattern? +

Register the Claude Flow MCP server in PolicyLayer and add a rule for gt_wasm_match_pattern: 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.

What risk level is gt_wasm_match_pattern? +

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

Can I rate-limit gt_wasm_match_pattern? +

Yes. Add a rate_limit block to the gt_wasm_match_pattern 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 gt_wasm_match_pattern completely? +

Set action: deny in the PolicyLayer policy for gt_wasm_match_pattern. 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 gt_wasm_match_pattern? +

gt_wasm_match_pattern 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.

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