Detect personally identifiable information in text with configurable sensitivity
AI agents call privacy.detect_pii_exposure to retrieve information from ContextForge MCP Gateway without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The tool scans or analyzes text to identify PII patterns but does not create, modify, delete, or execute external operations. It has no side effects on the data itself, only returns detection results. Even with 'configurable sensitivity,' it remains a Read operation. Severity is low because misuse would only expose detection results, not cause data loss or enable direct harmful actions.
From the tool's definition Tool name contains 'detect' and description states it 'Detect[s] personally identifiable information in text' — this is a passive analysis/inspection operation with no modification or deletion of data.
Attacks that exploit this kind of access
Detect personally identifiable information in text with configurable sensitivity. It is categorised as a Read tool in the ContextForge MCP Gateway MCP Server, which means it retrieves data without modifying state.
Register the ContextForge MCP Gateway MCP server in PolicyLayer and add a rule for privacy.detect_pii_exposure: 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 ContextForge MCP Gateway. Nothing to install.
privacy.detect_pii_exposure 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 privacy.detect_pii_exposure 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 privacy.detect_pii_exposure. 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.
privacy.detect_pii_exposure is provided by the ContextForge MCP Gateway MCP server (jrmatherly/mcp-context-forge). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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