Query indexed information about a PHP class: FQCN, file path, type, what it implements, and what implements it.
AI agents call phpactor_class_info to retrieve information from Phpactor MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This is a read-only query operation that returns static information about PHP class structure from an index. It has no side effects, does not execute code, does not modify files, and does not delete or commit financial actions. The blast radius of misuse is minimal—an agent could only gather information about codebase structure, which poses low risk.
From the tool's definition Tool description states it 'Query indexed information about a PHP class' — purely retrieves metadata (FQCN, file path, type, implements, implementations) with no modification or execution capability.
Attacks that exploit this kind of access
Query indexed information about a PHP class: FQCN, file path, type, what it implements, and what implements it. It is categorised as a Read tool in the Phpactor MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Phpactor MCP Server MCP server in PolicyLayer and add a rule for phpactor_class_info: 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 Phpactor MCP Server. Nothing to install.
phpactor_class_info 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 phpactor_class_info 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 phpactor_class_info. 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.
phpactor_class_info is provided by the Phpactor MCP Server MCP server (p4it-kft/p4it-phpactor-mcp). 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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