Search text extracted from PDF files in the configured docs/pdfs folder.
AI agents call search_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 is a straightforward read operation that queries local documentation PDFs. It retrieves information without modifying, deleting, or executing any code. The search scope is limited to pre-existing PDF content in a docs folder. Even if an AI misuses this tool by making excessive requests, the worst outcome is resource consumption (DoS-like behavior), not data compromise or system damage.
From the tool's definition Tool searches text extracted from PDF files; described as search operation with no write, delete, or execution capabilities. Sister tools confirm read-only documentation access pattern (get_codesys_page, get_codesys_topic, list_codesys_pdfs, get_codesys_pdf).
Attacks that exploit this kind of access
Search text extracted from PDF files in 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 search_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.
search_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 search_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 search_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.
search_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.
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