Write/create a file on any mesh node. Default: contabo.
AI agents use omniwire_write_file to create or update resources in OmniWire — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your OmniWire environment.
The tool creates or modifies files on distributed infrastructure nodes, which is a reversible write operation. Severity is high because writing files across a mesh of distributed nodes could affect system configuration, application behavior, or data integrity depending on what files are written and where.
From the tool's definition Tool name contains 'write_file' and description states 'Write/create a file on any mesh node.' This directly indicates file creation/modification capability.
Documented attack patterns abuse exactly the kind of access omniwire_write_file gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and OmniWire, and nothing reaches the server without passing your rules. This is the rule we recommend for omniwire_write_file:
{
"version": "1",
"default": "deny",
"tools": {
"omniwire_write_file": {
"limits": [
{
"counter": "omniwire_write_file_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}omniwire_write_file 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.
Free to start. No card required.
Write/create a file on any mesh node. Default: contabo. It is categorised as a Write tool in the OmniWire MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the OmniWire MCP server in PolicyLayer and add a rule for omniwire_write_file: 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 OmniWire. Nothing to install.
omniwire_write_file 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 omniwire_write_file 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 omniwire_write_file. 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.
omniwire_write_file is provided by the OmniWire MCP server (voidchecksum/omniwire). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from OmniWire, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
Free to start. No card required.
88 OmniWire tools catalogued and risk-classified — across an index of 43,000+ MCP servers.