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).
This record as markdown: /tools/ruflo/aidefence-has-pii.md
What aidefence_has_pii does on Ruflo
AI agents call aidefence_has_pii 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.
Why aidefence_has_pii is rated Low
This is a detection/analysis tool that examines data and reports findings. It retrieves information (whether PII is present) without creating, modifying, deleting, or executing anything. The low severity reflects minimal blast radius: a false negative could allow PII to pass through, but the tool itself cannot move money, delete data, or execute code. It is purely informational.
From the tool's definition Tool checks/scans input for PII patterns and returns detection results. Description states 'Check if input contains PII' — a query operation with no side effects, data modification, or external state changes.
Attacks that exploit this kind of access
The rule that runs aidefence_has_pii 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 aidefence_has_pii, this is the rule to start with:
aidefence_has_pii is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Ruflo, apply this rule, and every aidefence_has_pii call is checked against it from then on.
Questions about 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). It is categorised as a Read tool in the Ruflo MCP Server, which means it retrieves data without modifying state.
Register the Ruflo 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 Ruflo. Nothing to install.
aidefence_has_pii 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 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.
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.
aidefence_has_pii 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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