AI agents call list_explicit_packages to retrieve information from Cachyos without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries the package manager's database to display information about explicitly installed packages. The underlying pacman commands (-Qe and -Qet flags) are read-only queries that return package metadata. No side effects occur—no packages are installed, removed, modified, or executed.
From the tool's definition Tool description states it retrieves 'Explicitly installed packages' using `pacman -Qe/-Qet`, which are query operations that list/retrieve data without modification.
Attacks that exploit this kind of access
Explicitly installed packages (pacman -Qe/-Qet). The 'what I chose'. It is categorised as a Read tool in the Cachyos MCP Server, which means it retrieves data without modifying state.
Register the Cachyos MCP server in PolicyLayer and add a rule for list_explicit_packages: 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 Cachyos. Nothing to install.
list_explicit_packages 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_explicit_packages 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_explicit_packages. 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_explicit_packages is provided by the Cachyos MCP server (raindancer118/cachyos-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
list_explicit_packages is one line of Cachyos's registry record.
The record carries the whole server: verified identity, auth posture, risk grade, every tool classified, recommended policy — re-checked continuously.
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