Return a focused explanation for a known CODESYS topic such as POUs, function blocks, timers, tasks, variables, libraries, debugging, visualization, or Structured Text.
AI agents call get_codesys_topic 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 retrieves and queries reference documentation about CODESYS development concepts. It has no side effects—it only reads and presents information. No data is created, modified, deleted, or executed. This is a straightforward Read category tool with low severity since misuse would only result in irrelevant or repetitive information retrieval without operational impact.
From the tool's definition Tool returns focused explanations for known CODESYS topics (POUs, function blocks, timers, tasks, variables, libraries, debugging, visualization, Structured Text).
Attacks that exploit this kind of access
Return a focused explanation for a known CODESYS topic such as POUs, function blocks, timers, tasks, variables, libraries, debugging, visualization, or Structured Text. 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 get_codesys_topic: 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.
get_codesys_topic 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 get_codesys_topic 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 get_codesys_topic. 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.
get_codesys_topic 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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