AI agents call fetch to retrieve information from Ahk 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 documentation data with no side effects. Fetching documentation is a read-only operation that does not create, modify, execute, delete, or commit any resources. The low severity reflects that misuse would at worst result in retrieving unnecessary documentation.
From the tool's definition Tool name 'fetch' combined with description 'Fetch detailed AutoHotkey documentation for a specific item' indicates retrieval of documentation without modification or execution.
Documented attack patterns abuse exactly the kind of access fetch gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Ahk, and nothing reaches the server without passing your rules. This is the rule we recommend for fetch:
{
"version": "1",
"default": "deny",
"tools": {
"fetch": {}
}
}fetch is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Fetch detailed AutoHotkey documentation for a specific item. It is categorised as a Read tool in the Ahk MCP Server, which means it retrieves data without modifying state.
Register the Ahk MCP server in PolicyLayer and add a rule for fetch: 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 Ahk. Nothing to install.
fetch 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 fetch 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 fetch. 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.
fetch is provided by the Ahk MCP server (truecrimedev/ahk-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 40 Ahk tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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40 Ahk tools catalogued and risk-classified — across an index of 42,500+ MCP servers.