aidefence_has_pii

Check if input contains PII (emails, SSNs, API keys, passwords, etc.). Use when nothing native exists — Claude Code does not have a PII / prompt-injection / adversarial-text scanner. Pair with any tool that ingests untrusted input (browser scrape, federation envelope, memory_import_claude).

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/aidefence-has-pii.md

WHAT IT DOES

What aidefence_has_pii does on Claude Flow

AI agents call aidefence_has_pii 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 aidefence_has_pii is rated Low

This is a read-only security validation tool. It retrieves and analyzes properties of input data (presence of PII patterns) with no side effects on data or systems. The severity is low because misuse causes information disclosure risk only if the tool itself is compromised, not from normal operation.

From the tool's definition Tool description explicitly states 'Check if input contains PII' — it performs detection/scanning without modification. The tool 'ingests untrusted input' but does not alter, delete, or execute code based on findings; it only analyzes and reports.

Attacks that exploit this kind of access

RECOMMENDED RULE

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

aidefence_has_pii Allowed

aidefence_has_pii 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": {
    "aidefence_has_pii": {}
  }
}

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 aidefence_has_pii call is checked against it from then on.

FAQ

Questions about aidefence_has_pii

What does the aidefence_has_pii tool do? +

How do I enforce a policy on aidefence_has_pii? +

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

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

Can I rate-limit aidefence_has_pii? +

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

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

aidefence_has_pii 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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