Stop watching files for a previously registered watcher by ID.
AI agents use unwatchFiles to create or update resources in Patchwork Os — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Patchwork Os environment.
This tool cancels/removes a file watcher registration. It modifies state (removes a watcher) but is reversible since a new watcher can be registered again. No data is deleted, no code is executed, and no financial action is taken. It fits Write as it changes application state.
From the tool's definition Stop watching files for a previously registered watcher by ID
Documented attack patterns abuse exactly the kind of access unwatchFiles gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Patchwork Os, and nothing reaches the server without passing your rules. This is the rule we recommend for unwatchFiles:
{
"version": "1",
"default": "deny",
"tools": {
"unwatchFiles": {
"limits": [
{
"counter": "unwatchfiles_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}unwatchFiles 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.
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Stop watching files for a previously registered watcher by ID. It is categorised as a Write tool in the Patchwork Os MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Patchwork Os MCP server in PolicyLayer and add a rule for unwatchFiles: 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 Patchwork Os. Nothing to install.
unwatchFiles 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 unwatchFiles 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 unwatchFiles. 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.
unwatchFiles is provided by the Patchwork Os MCP server (oolab-labs/patchwork-os). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Patchwork Os, 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.
11 Patchwork Os tools catalogued and risk-classified — across an index of 43,000+ MCP servers.