rvf_extract

Extract RVF contents

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/rvf-extract.md

WHAT IT DOES

What rvf_extract does on Claude Flow

AI agents call rvf_extract 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 rvf_extract is rated Low

This tool retrieves or queries RVF contents without side effects. No creation, modification, deletion, or external execution is implied. The sibling tools (agent_*, agentdb_*) suggest a management/orchestration context, but this specific tool's function is limited to extraction/reading. Classified as Read with low severity because misuse would only expose data, not cause operational harm or financial loss.

From the tool's definition Tool name 'rvf_extract' and description 'Extract RVF contents' indicate retrieval of data from RVF (likely a file or data structure format). The verb 'extract' denotes reading/accessing existing content without modification.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs rvf_extract 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 rvf_extract, this is the rule to start with:

rvf_extract Allowed

rvf_extract 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": {
    "rvf_extract": {}
  }
}

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 rvf_extract call is checked against it from then on.

FAQ

Questions about rvf_extract

What does the rvf_extract tool do? +

Extract RVF contents. 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 rvf_extract? +

Register the Claude Flow MCP server in PolicyLayer and add a rule for rvf_extract: 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 rvf_extract? +

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

Can I rate-limit rvf_extract? +

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

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

rvf_extract 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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