This record as markdown: /tools/io-github-iowarp-adios-mcp/jm-set-hostfile.md
What jm_set_hostfile does on CLIO Adios
AI agents use jm_set_hostfile to create or update resources in CLIO Adios, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your CLIO Adios environment.
Why jm_set_hostfile is rated Medium
This tool modifies JarvisManager's hostfile configuration, affecting which hosts are targeted for subsequent operations. While not destructive (reversible by setting a different path), and not immediately executing arbitrary code, it is a write operation that changes system configuration state.
From the tool's definition Tool description: 'Set hostfile path for JarvisManager.' The verb 'set' indicates modification of a configuration or state (hostfile path), which constitutes a write operation.
Attacks that exploit this kind of access
The rule that runs jm_set_hostfile safely
PolicyLayer is an MCP gateway: it sits between your AI agents and CLIO Adios, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For jm_set_hostfile, this is the rule to start with:
jm_set_hostfile stays usable, but capped: an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect CLIO Adios, apply this rule, and every jm_set_hostfile call is checked against it from then on.
Questions about jm_set_hostfile
Set hostfile path for JarvisManager. It is categorised as a Write tool in the CLIO Adios MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the CLIO Adios MCP server in PolicyLayer and add a rule for jm_set_hostfile: 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 CLIO Adios. Nothing to install.
jm_set_hostfile is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the jm_set_hostfile 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 jm_set_hostfile. 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.
jm_set_hostfile is provided by the CLIO Adios MCP server (pypi:clio-kit). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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