List PDF files available to this MCP server from the configured docs/pdfs folder.
AI agents call list_codesys_pdfs to retrieve information from CODESYS MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool performs a directory listing of PDF documentation files. It retrieves information about available resources without creating, modifying, executing, or deleting anything. The blast radius of misuse is minimal—an agent could only learn what PDFs exist in the configured folder, which is informational only. Confidence is high because the description clearly indicates read-only enumeration behavior.
From the tool's definition Tool description states it 'List[s] PDF files available' - a retrieval operation with no modification or execution. The verb 'list' and context of enumerating available PDFs from a docs folder confirms this is a read-only query with no side effects.
Attacks that exploit this kind of access
List PDF files available to this MCP server from the configured docs/pdfs folder. It is categorised as a Read tool in the CODESYS MCP Server MCP Server, which means it retrieves data without modifying state.
Register the CODESYS MCP Server MCP server in PolicyLayer and add a rule for list_codesys_pdfs: 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 CODESYS MCP Server. Nothing to install.
list_codesys_pdfs 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 list_codesys_pdfs 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 list_codesys_pdfs. 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.
list_codesys_pdfs is provided by the CODESYS MCP Server MCP server (zandiexoder/codesys-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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